Correction: Li et al. Shoot Yield and Mineral Nutrient Concentrations of Five Microgreens in the Brassicaceae Family Affected by Fertigation Rate. Horticulturae 2023, 9, 1217

Error in Table

1. An error was made by including pea microgreens in the manuscript titled “Shoot Yield and Mineral Nutrient Concentrations of Five Microgreens in the Brassicaceae Family Affected by Fertigation Rate” [1]. To correct this error, pea microgreens were removed from the manuscript. Therefore, we changed “six microgreens” to “five microgreens” in Table 1’s title. The corrected version of

Table 1. Common name, scientific name, seeding rate, 100-seed weight, and harvest date of five microgreens.

Common Name	Scientific Name	Seeding Rate (g·m−2)	100-Seed Wt. (g)	Harvest Date 1 (DAP)
Broccoli	Brassica oleracea var. italica cv. ‘Waltham’	98.3	0.33 ± 0.015	10
Cabbage	Brassica oleracea var. capitata cv. ‘Red Acre’	83.1	0.39 ± 0.012	10–11
Daikon radish	Raphanus sativus var. longipinnatus cv. ‘Daikon’	173.8	1.36 ± 0.019	10
Kale	Brassica napus var. pabularia cv. ‘Red Russian’	75.6	0.22 ± 0.005	10
Rambo radish	Raphanus sativus cv. ‘Rambo’	189.0	1.10 ± 0.03	10–11

¹ Microgreens were harvested with the expanding cotyledons (microgreen stage 1) or with the first pair of true leaves (microgreen stage 2).

is as follows:

2. An error was made by including pea microgreens in [1]. To correct this error, pea data were removed from the manuscript. Therefore we changed “six microgreens” to “five microgreens” in Table’s 2 title. The related data in Table 2 have also changed accordingly. The corrected version of

Table 2. Shoot height, fresh and dry shoot weights, and visual rating varied among five microgreens.

	December 2020				January 2021
Microgreens	Shoot Height 1,2	Fresh Shoot Weight	Dry Shoot Weight	Visual Rating	Shoot Height	Fresh Shoot Weight	Dry Shoot Weight	Visual Rating
	(cm)	(g·m−2)	(g·m−2)	(1–5)	(cm)	(g·m−2)	(g·m−2)	(1–5)
Broccoli	8.16 ab	984.0 a	69.8 b	4.84 a	7.37 b	1131.0 a	77.0 b	5.00 a
Cabbage	6.73 c	849.0 b	58.6 cd	4.65 a	6.27 c	943.6 b	63.3 c	4.94 a
Daikon radish	8.54 a	982.7 a	78.5 a	4.30 b	9.24 a	1156.0 a	88.6 a	4.12 b
Kale	6.73 c	916.5 ab	54.5 d	4.78 a	5.83 c	1014.0 bc	59.1 c	5.00 a
Rambo radish	7.78 b	722.1 c	63.0 c	3.74 c	7.78 b	824.2 c	72.8 b	3.51 c
p-value	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001

¹ Different lower case letters within a column suggest significant difference among means as indicated by Tukey’s HSD test at p < 0.05. ² The means of each microgreen were obtained by averaging means from all five fertigation rates because there was no interaction between cultivar/species and fertigation rate.

is:

3. An error was made by including pea microgreens in [1]. To correct this error, data regarding pea microgreens were removed from the manuscript. The statistical analyses were redone. Therefore, the means in Table 3 all changed. We also changed “six microgreens” to “five microgreens” in Table 3’s footer. The related data in Table 3 have also changed accordingly.

The corrected version of

Table 3. Shoot height, fresh and dry shoot weights, and visual rating varied among five fertigation rates.

	December 2020				January 2021
Fertilizer Rate	Shoot Height 1,2	Fresh Shoot Weight	Dry Shoot Weight	Visual Rating	Shoot Height	Fresh Shoot Weight	Dry Shoot Weight	Visual Rating
(mg·L−1 N)	(cm)	(g·m−2)	(g·m−2)	(1–5)	(cm)	(g·m−2)	(g·m−2)	(1–5)
0	6.99 b	737.0 c	57.4 c	4.21 b	6.95 b	839.1 c	65.0 c	4.39 bc
70	7.56 a	865.0 b	63.4 b	4.33 ab	7.12 ab	952.0 b	69.8 bc	4.37 c
140	7.68 a	915.4 ab	66.3 ab	4.50 ab	7.32 ab	1073 a	75.0 ab	4.69 a
210	7.75 a	967.1 ab	69.1 a	4.64 a	7.57 a	1075 a	75.1 ab	4.46 abc
280	7.96 a	969.9 a	68.2 ab	4.63 a	7.49 ab	1129 a	75.9 a	4.65 ab
p-value	<0.0001	<0.0001	<0.0001	0.0015	0.01	<0.0001	<0.0001	0.0027

¹ Different lower case letters within a column suggest significant difference among means as indicated by Tukey’s HSD test at p < 0.05. ² The means of each fertigation rate were obtained by averaging means from all five microgreens because there was no interaction between cultivar/species and fertigation rate.

is as follows:

4. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript and statistical analyses were redone. Therefore, we changed “six microgreens” to “five microgreens” in Table 4’s title. The related data in Table 4 have also changed accordingly. The corrected version of

Table 4. Macronutrient concentrations of five microgreens affected by the interaction between cultivar and fertigation rate in December 2020 and January 2021.

		December 2020					January 2021
Microgreens	Fertigation Rate	Nitrogen 1	Phosphorus	Potassium	Magnesium	Sulfur	Nitrogen
	(mg·L−1 N)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)
Broccoli	0	42.4 l	9.54 e–h	35.5 ab	4.18 a–e	13.74 c–g	36.7 l
	70	50.8 ghi	10.72 c–f	37.9 ab	4.48 ab	14.09 c–f	43.7 ij
	140	51.2 f–i	11.02 b–e	40.1 ab	4.31 a–e	14.22 cde	47.8 gh
	210	54.5 c–f	10.17 efg	34.3 ab	3.94 b–f	12.49 c–j	51.6 e–g
	280	57.0 a–d	9.98 e–h	33.8 b	3.82 c–g	12.14 d–k	54.1 bcd
Cabbage	0	41.4 l	8.84 gh	39.7 ab	4.42 a–c	18.81 a	42.8 jk
	70	49.5 hij	9.15 fgh	39.8 ab	4.58 a	18.78 a	48.8 fgh
	140	51.6 fgh	9.57 e–h	38.4 ab	4.61 a	17.90 ab	54.0 b–e
	210	54.2 def	9.19 fgh	36.3 ab	4.36 a–d	15.61 bc	57.6 ab
	280	58.0 ab	9.06 fgh	34.6 ab	4.30 a–e	15.01 bcd	60.0 a
Daikon radish	0	47.2 jk	10.21 d–g	35.7 ab	3.75 d–h	11.12 e–l	46.6 hij
	70	51.8 fgh	11.21 a–e	35.5 ab	3.81 c–g	9.66 ijk	52.3 c–f
	140	53.2 efg	12.19 abc	39.2 ab	3.90 b–f	10.97 f–l	53.1 cde
	210	55.3 b–e	12.70 ab	39.2 ab	4.10 a–f	10.62 g–l	53.8 b–e
	280	57.5 abc	12.18 abc	37.1 ab	3.86 b–g	10.38 h–l	57.5 ab
Kale	0	42.6 l	9.23 fgh	40.1 ab	3.88 b–f	14.98 bcd	39.4 kl
	70	48.9 hij	9.26 fgh	39.3 ab	3.73 e–h	14.45 cd	46.7 hij
	140	53.4 efg	8.86 gh	35.8 ab	3.53 fgh	13.47 c–h	53.3 cde
	210	55.4 b–e	8.38 h	33.8 b	3.26 gh	12.82 c–i	54.8 bcd
	280	59.4 a	8.34 h	34.2 ab	3.19 h	12.02 d–k	56.0 abc
Rambo radish	0	44.1 kl	11.93 a–d	37.6 ab	4.27 a–e	9.39 i–l	47.0 hi
	70	48.1 ij	12.26 abc	36.5 ab	4.16 a–e	9.00 kl	50.1 e–g
	140	50.2 g–j	12.27 abc	36.7 ab	4.04 a–f	9.32 kl	51.1 d–g
	210	51.7 fgh	12.36 abc	36.6 ab	4.00 a–f	8.54 l	52.0 def
	280	53.2 efg	12.93 a	41.1 a	4.08 a–f	9.73 i–l	53.4 cde
p-value	Cultivar	<0.0001	<0.0001	0.3456	<0.0001	<0.0001	<0.0001
	Fertigation rate	<0.0001	0.0022	0.043	0.0003	<0.0001	<0.0001
	Interaction	<0.0001	0.0004	0.0002	0.0054	0.01	<0.0001

¹ Different lower case letters within a column suggest significant difference among means as indicated by Tukey’s HSD test at p < 0.05.

is as follows:

5. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript and the statistical analyses were redone. With the data being updated, the title of Table 5 was changed to “Macronutrients including phosphorus, potassium, calcium, magnesium, and sulfur varied among five microgreens in December 2020 and January 2021”. The related data in Table 5 have also changed accordingly.

The updated and corrected version of

Table 5. Macronutrients including phosphorus, potassium, calcium, magnesium, and sulfur varied among five microgreens in December 2020 and January 2021.

	December 2020	January 2021
Microgreens	Calcium 1,2	Phosphorus	Potassium	Calcium	Magnesium	Sulfur
	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)
Broccoli	13.94 b	10.59 c	39.9 bc	13.10 b	4.19 b	13.60 c
Cabbage	16.75 a	9.77 d	42.6 ab	15.14 a	4.60 a	19.01 a
Daikon radish	9.50 d	11.62 b	39.6 c	8.86 d	4.13 b	12.88 c
Kale	10.24 c	10.36 c	44.4 a	9.79 c	3.81 c	16.60 b
Rambo radish	9.84 cd	13.05 a	37.8 c	10.04 c	4.29 b	8.71 d
p-value	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001

¹ Different lower case letters within a column suggest significant difference among means as indicated by Tukey’s HSD test at p < 0.05. ² The means of each microgreen were obtained by averaging means from all five fertigation rates because there was no interaction between cultivar/species and fertigation rate.

is as follows:

6. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript and the statistical analyses were redone. With the data being updated, the title of Table 6 was changed to “Macronutrients including calcium, phosphorus, potassium, magnesium, and sulfur varied among five fertigation rates in December 2020 and January 2021”. The second table footer was also updated to “² The means of each fertigation rate were obtained by averaging the means from all five microgreens because there was no interaction between cultivar/species and fertigation rate.”. The related data in Table 6 have also changed accordingly.

The updated and corrected version of

Table 6. Macronutrients including calcium, phosphorus, potassium, magnesium, and sulfur varied among five fertigation rates in December 2020 and January 2021.

	December 2020	January 2021
Fertigation Rate	Calcium 1,2	Phosphorus	Potassium	Calcium	Magnesium	Sulfur
(mg·L−1 N)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)	(mg·g−1)
0	12.72 a	10.65 b	42.4	12.03 a	4.30 a	14.9
70	12.48 a	10.97 ab	40.8	11.31 ab	4.29 a	14.2
140	12.28 a	11.18 ab	40.8	11.20 ab	4.21 a	14.0
210	11.54 b	11.17 ab	40.1	11.05 b	4.11 a	13.9
280	11.25 b	11.41 a	40.2	11.34 ab	4.10 a	13.8
p-value	<0.0001	0.030	0.18	0.047	0.025	0.058

¹ Different lower case letters within a column suggest significant difference among means as indicated by Tukey’s HSD test at p < 0.05. ² The means of each fertigation rate were obtained by averaging the means from all five microgreens because there was no interaction between cultivar/species and fertigation rate.

is as follows:

7. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript and the statistical analyses were redone. We changed “six microgreens” to “five microgreens” in Table 7’s title. The related data in Table 7 have also changed accordingly.

With the data being updated, the corrected and updated version of

Table 7. Micronutrient concentrations of five microgreens affected by the interaction between cultivar and fertigation rate in December 2020 or January 2021.

		December 2020	January 2021
Microgreens	Fertigation Rate 1	Copper	Copper	Boron
	(mg·L−1 N)	(µg·g−1)	(µg·g−1)	(µg·g−1)
Broccoli	0	6.54 a–d	5.29 c	17.4 c–f
	70	7.64 a	4.97 c	17.8 c–f
	140	7.16 ab	4.56 c	19.5 b–f
	210	3.85 b–g	6.03 c	23.2 ab
	280	2.80 efg	5.99 c	24.8 a
Cabbage	0	5.01 a–g	11.56 b	15.2 ef
	70	6.93 abc	12.72 ab	18.4 b–f
	140	7.57 a	13.85 ab	19.3 b–f
	210	3.76 c–g	14.08 ab	18.3 b–f
	280	2.89 efg	13.61 ab	18.8 b–f
Daikon radish	0	3.44 d–g	14.17 ab	15.1 f
	70	2.31 fg	11.22 b	15.5 def
	140	1.79 g	13.38 ab	14.7 f
	210	2.00 g	15.55 a	16.0 c–f
	280	2.23 fg	15.93 a	16.0 c–f
Kale	0	4.58 a–g	5.96 c	20.8 abc
	70	4.02 b–g	3.31 c	20.3 a–d
	140	4.83 a–g	3.08 c	20.7 abc
	210	1.79 g	3.11 c	18.9 b–f
	280	2.32 fg	2.94 c	19.0 b–f
Rambo radish	0	6.89 abc	3.03 c	16.8 c–f
	70	3.39 d–g	2.64 c	17.3 c–f
	140	3.39 d–g	3.21 c	20.2 a–e
	210	5.49 a–f	2.77 c	18.2 c–f
	280	6.10 a–e	2.90 c	19.4 b–f
p-value	Cultivar	<0.0001	<0.0001	<0.0001
	Fertigation rate	<0.0001	0.013	0.0004
	Interaction	<0.0001	0.001	0.0001

¹ Different lower case letters within a column suggest significant difference among means as indicated by Tukey’s HSD test at p < 0.05.

is as follows:

8. An error was made by including pea microgreens in [1]. To correct this error, pea data were removed from the manuscript and the statistical analyses were redone. We changed “six microgreens” to “five microgreens” in Table 8’s title. The related data in Table 8 have also changed accordingly.

With the data being updated, the corrected and updated version of

Table 8. Micronutrients including iron, manganese, zinc, and boron varied among five microgreens.

	December 2020				January 2021
Microgreens	Iron 1,2	Manganese	Zinc	Boron	Iron	Manganese	Zinc
	(µg·g−1)	(µg·g−1)	(µg·g−1)	(µg·g−1)	(µg·g−1)	(µg·g−1)	(µg·g−1)
Broccoli	127.5 b	41.0 c	82.7 a	24.5 a	114.4 b	44.3 a	75.0 b
Cabbage	110.6 c	36.1 d	78.8 ab	22.7 ab	120.1 b	20.5 d	73.5 b
Daikon radish	91.7 d	23.1 e	65.3 c	21.1 bc	149.6 a	27.2 b	89.2 a
Kale	138.3 a	46.6 a	74.9 ab	19.5 c	89.6 c	22.5 c	65.7 c
Rambo radish	141.0 a	44.1 b	72.3 bc	20.5 c	81.1 d	22.1 cd	47.9 d
p-value
Cultivar	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
Fertigation	0.72	0.18	0.08	0.30	0.45	0.82	0.14
Interaction	0.07	0.48	0.42	0.12	0.051	0.051	0.28

¹ Different lower case letters within a column suggest significant difference among means as indicated by Tukey’s HSD test at p < 0.05. ² The means of each microgreen were obtained by averaging means from all five fertigation rates because there was no interaction between cultivar/species and fertigation rate. The main effect of fertigation rate was not significant for all micronutrients listed in this table.

is as follows:

Text Correction

1. There was an error in the original publication in the title stating “Shoot Yield and Mineral Nutrient Concentrations of Six Microgreens in the Brassicaceae Family Affected by Fertigation Rate” because one the microgreen species, pea, does not belong to the Brassicaceae family.

A correction has been made by removing pea from the manuscript and changing the title to “Shoot Yield and Mineral Nutrient Concentrations of Five Microgreens in the Brassicaceae Family Affected by Fertigation Rate”.

2. There was an error in the original publication in the abstract stating “This study aimed to investigate the shoot yield, visual quality, and mineral nutrient concentrations of six microgreens in the Brassicaceae family including the ‘Waltham’ broccoli, ‘Red Acre’ cabbage, Daikon radish, ‘Red Russian’ kale, pea, and Rambo radish in two experiments in December 2020 and January 2021.”, because the microgreen species pea does not belong to the Brassicaceae family.

A correction was made by removing pea data from the manuscript and updating the statistical analyses. Therefore, the corrected and updated abstract appears below:

“Abstract: Microgreens have become an important specialty crop valued for their varying texture, vibrant colors, and nutrient-dense features. As the number of species and cultivars rapidly increases for microgreen production, fertigation requirements in relation to shoot production and nutrient composition remain unclear. This study aimed to investigate the shoot yield, visual quality, and mineral nutrient concentrations of five microgreens in the Brassicaceae family, including the ‘Waltham’ broccoli, ‘Red Acre’ cabbage, Daikon radish, ‘Red Russian’ kale, and Rambo radish, in two experiments conducted in December 2020 and January 2021. Each microgreen was fertigated with 120 mL of fertilizer solution daily for five consecutive days at a concentration of 0, 70, 140, 210, or 280 mg·L⁻¹ nitrogen (N) using a general-purpose fertilizer. Broccoli and Daikon radish produced the highest fresh shoot weights among the microgreen cultivars in both experiments. Fertigation rates of 140, 210, and 280 mg·L⁻¹ N resulted in similar fresh and dry shoot weights for the selected microgreens, suggesting that 140 mg·L⁻¹ N should be sufficient for microgreen fertilization. The mineral nutrients in microgreens varied among cultivars, with cabbage microgreens having the highest calcium (Ca) concentration in both experiments. Kale and Rambo radish contained higher concentrations of iron (Fe) and manganese (Mn) than other cultivars in December 2020. The fertigation rate affected macronutrient concentrations, but did not affect micronutrient concentrations, including Fe, Mn, and zinc (Zn).”.

3. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript.

A correction has been made by removing “pea;” from the Keywords.

4. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript.

A correction was made by changing “six” to “five” in the last paragraph of Introduction.

5. An error was made by including pea microgreen in [1]. To correct this error, pea data were removed from the manuscript.

A correction was made to the first paragraph of Materials and Methods, where we changed “six genotypes” to “five genotypes”. Additionally, “speckled pea,” was deleted. Also, “Starkville, MI” was corrected to be “Starkville, MS”.

By removing pea, the number of species decreased from six to five, and the number of treatment combinations decreased from 30 to 25. Therefore, a correction was also made to the last paragraph of the Materials and Methods updating the number of species/cultivar: changing “species/cultivar (6)” to “species/cultivar (5)”; changing “30 treatment combinations” to “25 treatment combinations”; and changing “thirty treatment combinations” to “25 treatment combinations”.

6. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

In Results, 3.1. Shoot Growth and Visual Rating, the text was corrected according to the updated statistical results after removing pea-related data. The updated description of the results in Section 3.1. Shoot Growth and Visual Rating appears below:

“Shoot height, fresh and dry shoot weights, and visual rating varied among microgreen cultivars and fertigation rates without interaction in both experiments in December 2020 and January 2021 (Tables 2 and 3).

Among the tested species/cultivars, daikon radish produced the largest shoot heights of 8.54 cm in December 2020 and 9.24 cm in January 2021 (Table 2). Cabbage and kale produced the smallest shoot heights in both experiments, with broccoli and Rambo radish producing intermediate shoot heights. Microgreens fertigated with any fertilization rate from 70 to 280 mg·L⁻¹ N produced similar shoot heights, which were higher than those of the no-fertilizer control in December 2020 (Table 3). In January 2021, the no-fertilizer control resulted in shoot heights lower than 210 mg·L⁻¹ N, but similar to those of other fertigation rates.

The trends of fresh and dry shoot weights among species varied between two experiments. In December 2020, broccoli, Daikon radish, and kale produced the highest fresh shoot weights ranging from 916.5 to 984.0 g·m⁻², higher than that of Rambo radish, which produced the lowest fresh shoot weight of 722.1 g·m⁻². Daikon radish produced the highest dry shoot weight of 78.5 g·m⁻², and broccoli produced the second-highest dry shoot weight of 69.8 g·m⁻² in December 2020. Cabbage and kale produced the lowest dry shoot weights of 58.6 and 54.5 g·m⁻², respectively.

In January 2021, broccoli and Daikon radish produced the similarly highest fresh shoot weights of 1131 g·m⁻² and 1156 g·m⁻², respectively, which were higher than those of cabbage (943.6 g·m⁻²), kale (1014 g·m⁻²), or Rambo radish (824.2 g·m⁻²) (Table 2). The ranking of dry shoot weight among cultivars was: Daikon radish (88.6 g·m⁻²) > broccoli (77.0 g·m⁻²), or Rambo radish (72.8 g·m⁻²) > cabbage (63.3 g·m⁻²), or kale (59.1 g·m⁻²). When considering fertigation rate, 140, 210, and 280 mg·L⁻¹ N resulted in similar fresh and dry shoot weights in both experiments, higher than those of the no-fertilizer control (Table 3).

For visual rating, broccoli, cabbage, and kale similarly produced the highest visual rating scores of 4.65 to 4.84 in December 2020, and 4.94 to 5.0 in January 2021, respectively (Tables 2 and 3). Rambo radish microgreens had the lowest visual rating in both experiments, with values of 3.74 in December 2020 and 3.51 in January 2021, respectively. This was likely also due to the poor germination of Rambo radish seeds. Daikon radish had intermediate rating scores in both experiments.

The separation of visual rating among fertigation rates was not as high (Table 3). The rates of 140, 210, and 280 mg·L⁻¹ N resulted in similar visual ratings of 4.50 to 4.64 in December and of 4.46 to 4.69 in January. In December, 0 mg·L⁻¹ N resulted in a lower visual rating than 210 or 280 mg·L⁻¹ N. In January, 70 mg·L⁻¹ N resulted in a lower visual rating than 140 or 280 mg·L⁻¹ N.”

7. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.2. Nitrogen Concentration appears below:

“Nitrogen concentrations in the tested microgreens were affected by the interaction between cultivar and fertigation rate in both experiments (Table 4). In December 2020, the highest fertigation rate of 280 mg·L⁻¹ N generally resulted in a higher N concentration than 0 to 140 mg·L⁻¹ N in broccoli, cabbage, daikon radish, and kale microgreens, and higher than 0 and 70 mg·L⁻¹ N in Rambo radish microgreens. Rambo radish had the lowest N concentration among cultivars when fertigated with 280 mg·L⁻¹ N.

In January 2021, the fertigation rate of 280 mg·L⁻¹ N also resulted in a higher N concentration than 0 to 140 mg·L⁻¹ in broccoli, cabbage, and Daikon radish, and higher than 0 mg·L⁻¹ in kale and Rambo radish microgreens. Within a given species, no fertilizer resulted in the lowest N concentration among the five fertigation rates in both experiments.”

8. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.3. Phosphorus Concentration appears below:

“In December 2020, phosphorus concentrations were affected by the interaction between cultivar and fertigation rate (Table 4). The two radish microgreens had the highest P concentrations among the tested cultivars, regardless of fertigation rate, except for Daikon radish fertigated with no fertilizer. Rambo radish had higher P concentrations, ranging from 11.93 to 12.93 mg·g⁻¹, than cabbage or kale at each fertigation rate. The two microgreens cabbage and kale had similar P concentrations of 8.34 to 9.57 mg·g⁻¹, regardless of fertigation rate. The phosphorus concentrations in microgreens did not respond much to the fertigation rate, where five fertigation rates resulted in similar P concentrations in broccoli, cabbage, kale, and Rambo radish.

In January 2021, the phosphorus concentrations varied among microgreen cultivars and fertigation rates without interaction (Tables 5 and 6). Rambo radish had the highest P concentration of 13.05 mg·g⁻¹ among the tested microgreens and cabbage microgreens had the lowest P concentration of 9.77 mg·g⁻¹. The separation of P concentrations among cultivars was Rambo radish > Daikon radish > broccoli, or kale > cabbage (Table 5). The five fertigation rates generally resulted in similar P concentrations in tested microgreens except that 280 mg·L⁻¹ N resulted in higher P concentration than the no-fertilizer control (Table 6).”

9. An error was made by including pea microgreen in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.4. Potassium Concentration appears below:

“In December 2020, the potassium concentration was affected by the interaction between cultivar and fertigation rate (Table 4). The potassium concentrations were generally similar among all treatment combinations, except that Rambo radish fertigated with 280 mg·L⁻¹ N had a higher K concentration of 41.1 mg·g⁻¹ than that of broccoli (33.8 mg·g⁻¹) fertigated with 280 mg·L⁻¹ N or kale (33.8 mg·g⁻¹) fertigated with 210 mg·L⁻¹ N.

In January 2021, the potassium concentrations varied among cultivars and were not affected by fertigation rate (Tables 5 and 6). Cabbage and kale had the highest K concentrations of 42.6 mg·g⁻¹ and 44.4 mg·g⁻¹, respectively, which were higher than those Daikon radish or Rambo radish. Broccoli, Daikon radish, and Rambo radish had similar K concentrations ranging from 37.8 mg·g⁻¹ to 39.9 mg·g⁻¹.”

10. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.5. Calcium Concentration appears below:

“The calcium concentrations were affected by microgreen cultivar and fertigation rate separately without interaction in both experiments (Tables 5 and 6). Among the species, cabbage microgreens had the highest Ca concentrations of 16.75 and 15.14 mg·g⁻¹ in December 2020 and January 2021, respectively. Broccoli had the second-highest Ca concentrations of 13.94 in December 2020 and 13.10 mg·g⁻¹ January 2021. Compared with cabbage and broccoli, the three microgreens Daikon radish, kale, and Rambo radish had lower Ca concentrations in both experiments (Table 5).

When affected by fertigation rate, the fertilizer rates of 0, 70, and 140 mg·L⁻¹ N resulted in similar and higher Ca concentrations than 210 or 280 mg·L⁻¹ N in December 2020 (Table 6). In January 2021, the five fertigation rates generally resulted in similar Ca concentrations ranging from 11.05 to 12.03 mg·g⁻¹, except that 0 mg·L⁻¹ N resulted in a higher Ca concentration than 210 mg·L⁻¹ N.”

11. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.6. Magnesium Concentration appears below:

“In December 2020, the magnesium concentration was affected by the interaction between cultivar and fertigation rate (Table 4). The five fertigation rates generally resulted in similar Mg concentrations within a microgreen, except that 70 mg·L⁻¹ N increased the Mg concentration in broccoli compared with 280 mg·L⁻¹ N and that no fertilizer increased the Mg concentration in kale compared with 210 or 280 mg·L⁻¹ N. Cabbage and Rambo radish fertigated with N at any rate, broccoli fertigated with 0 to 140 mg·L⁻¹ N, and Daikon radish fertigated with 210 mg·L⁻¹ N produced the highest Mg concentrations of 4.00 to 4.61 mg·g⁻¹ among all treatment combinations.

In January 2021, the magnesium concentrations were separately affected by the main effects of cultivar and fertigation rate without interaction (Tables 5 and 6). The ranking of Mg concentration among cultivars followed the order of cabbage (4.60 mg·g⁻¹) > broccoli, Daikon radish, or Rambo radish (4.13 to 4.29 mg·g⁻¹) > kale (3.81 mg·g⁻¹). The five fertigation rates resulted in similar Mg concentrations of 4.10 to 4.30 mg·g⁻¹ in tested microgreens.”

12. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.7. Sulfur Concentration appears below:

“The sulfur concentration was affected by the interaction between cultivar and fertigation rate in December 2020 (Table 4). The five fertigation rates resulted in similar S concentrations within a cultivar for broccoli, Daikon radish, kale, and Rambo radish. Cabbage fertigated with 0 to 140 mg·L⁻¹ N had the highest S concentrations of 17.90 to 18.81 mg·g⁻¹ compared with those of any other species fertigated with any N rate. Daikon radish and Rambo radish had generally the lowest S concentrations of 8.54 to 11.12 mg·g⁻¹.

In January 2021, the sulfur concentration varied among species, but was not affected by fertigation rate (Tables 5 and 6). The ranking of S concentration among cultivars was as follows: cabbage (19.01 mg·g⁻¹) > kale (16.60 mg·g⁻¹) > broccoli (13.60 mg·g⁻¹) or Daikon radish (12.88 mg·g⁻¹) > Rambo radish (8.71 mg·g⁻¹).”

13. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.8. Copper Concentration appears below:

“The copper concentrations were affected by the interaction between cultivar and fertigation rate in both experiments (Table 7).

In December 2020, the two species Daikon radish and kale had similar Cu concentrations, ranging from 1.79 to 4.83 µg·g⁻¹, regardless of fertigation rate. Broccoli and cabbage had higher Cu concentrations than Daikon radish or Rambo radish when fertigated with 70 or 140 mg·L⁻¹ N. The fertigation rate of 140 mg·L⁻¹ N resulted in higher Cu concentrations than those of 210 or 280 mg·L⁻¹ N in broccoli and cabbage.

In January 2021, cabbage and Daikon radish had higher Cu concentrations, ranging from 11.22 to 15.93 µg·g⁻¹, than any other species, regardless of fertigation rate. The three microgreens broccoli, kale, and Rambo radish had similar Cu concentrations, ranging from 2.64 to 6.03 µg·g⁻¹. The five fertigation rates generally resulted in similar Cu concentrations within a microgreen cultivar.”

14. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. Statistical analyses were redone.

The updated text with the corrected data in Section 3.9. Iron Concentration appears below:

“The iron concentrations varied among microgreen cultivars in December 2020 and January 2021 and were not affected by fertigation rate in any experiment (Table 8). In December 2020, kale and Rambo radish exhibited Fe concentrations of 138.3 to 141.0 µg·g⁻¹, higher than those of broccoli, cabbage, and Daikon radish. Broccoli microgreens had a higher Fe concentration than that of cabbage or Daikon radish, with Daikon radish having the lowest Fe concentration of 91.7 µg·g⁻¹. In January 2021, Daikon radish had the highest Fe concentration of 149.6 µg·g⁻¹ among microgreens. Broccoli and cabbage had the second-highest Fe concentrations of 114.4 µg·g⁻¹ and 120.1 µg·g⁻¹, respectively. Rambo radish had the lowest Fe concentration of 81.1 µg·g⁻¹.”

15. An error was made by including pea microgreens in [1]. To correct this error, pea data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.10. Manganese Concentration appears below:

“The manganese concentrations varied among microgreen cultivars in December 2020 and January 2021 and were not affected by fertigation rate (Table 8). In December 2020, kale microgreens had the highest Mn concentration of 46.6 µg·g⁻¹, higher than those of any other microgreens. Daikon radish had the lowest Mn concentration of 23.1 µg·g⁻¹ among the tested microgreens. In January 2021, broccoli had the highest Mn concentration of 44.3 µg·g⁻¹, and Daikon radish had the second-highest Mn concentration of 27.2 µg·g⁻¹. Compared with broccoli and Daikon radish, cabbage, kale, and Rambo radish microgreens had lower Mn concentrations of 20.5 to 22.5 µg·g⁻¹.”

16. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.11. Zinc Concentration appears below:

“The zinc concentrations varied among microgreen cultivars in December 2020 and January 2021 and were not affected by fertigation rate in either experiment (Table 8). In December 2020, broccoli, cabbage, and kale microgreens had similarly higher Zn concentrations of 74.9 to 82.7 µg·g⁻¹ than that of Daikon radish. Daikon radish had the lowest Zn concentrations of 65.3 µg·g⁻¹. In January, the separation of Zn concentrations among microgreens followed the order of: Daikon radish (89.2 µg·g⁻¹) > broccoli (75.0 µg·g⁻¹), or cabbage (73.5 µg·g⁻¹) > kale (65.7 µg·g⁻¹) > Rambo radish (47.9 µg·g⁻¹).”

17. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

The updated text with the corrected data in Section 3.12. Boron Concentration appears below:

“In December 2020, the boron concentration varied among microgreens and was not affected by fertigation rate (Table 8). Broccoli and cabbage microgreens had higher B concentrations of 24.5 µg·g⁻¹ and 22.7 µg·g⁻¹, respectively, than kale or Rambo radish. Daikon radish, kale, and Rambo radish had similar low B concentrations of 19.5 to 21.1 µg·g⁻¹.

In January 2021, the boron concentration was affected by the interaction between cultivar and fertigation rate (Table 7). The five fertigation rates resulted in similar B concentrations in Daikon radish, kale, and Rambo radish. The higher fertigation rates of 210 mg·L⁻¹ N and 280 mg·L⁻¹ N resulted in a higher B concentration than 0 or 70 mg·L⁻¹ N in broccoli. Broccoli also had a higher B concentration of 24.8 µg·g⁻¹ than any other cultivar at a fertigation rate of 280 mg·L⁻¹ N.”

18. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

A correction was made by changing “six” to “five” in the second paragraph of the Discussion section. Another correction in the same paragraph was made by changing “When compared with sufficient mineral nutrient levels reported in the Plant Analysis Handbook III by Bryson et al. [28], the kale, broccoli, and pea microgreens had higher P concentrations than the reported ranges in mature leaves on a dry weight basis; radish microgreens had higher Ca concentrations; cabbage and radish microgreens had higher S concentrations; and pea and broccoli microgreens had higher Fe concentrations than the reported ranges.” to “When compared with the sufficient mineral nutrient levels reported in the Plant Analysis Handbook III by Bryson et al. [28], the kale and broccoli microgreens had higher P concentrations than the reported ranges in mature leaves on a dry weight basis; radish microgreens had higher Ca concentrations; cabbage and radish microgreens had higher S concentrations; and broccoli microgreens had higher Fe concentrations than the reported ranges.”

In the fourth paragraph of discussion, a correction was made by deleting “except for pea”.

19. An error was made by including pea microgreens in [1]. To correct this error, pea-related data were removed from the manuscript. The statistical analyses were redone.

A correction was made in the Conclusions by updating the data without pea microgreens, and the corrected conclusions appear below:

“Microgreens in the Brassicaceae family, including broccoli, cabbage, Daikon radish, kale, and Rambo radish, varied in shoot yields, height, visual quality, and mineral nutrient concentrations. Broccoli and Daikon radish produced the highest fresh shoot weights of 984 and 982 g·m⁻² in December 2020, and 1131 and 1156 g·m⁻² in January 2021, respectively. Daikon radish also produced the largest shoot height in both experiments, which is a desirable feature in microgreens, making it easier to harvest shoots. The fertigation rate of 140 mg·L⁻¹ N was considered sufficient and economical for optimal fresh shoot production. While the supplementation of fertilizer solution improved the shoot yield in the tested microgreens, increasing the N fertigation rate did not necessarily increase the contents of most macro- and micronutrients, except for N. Variations in mineral nutrient compositions were more subject to microgreen species/cultivars than changing fertigation rate. Future research should focus on microshoot yield, bioactive phytochemicals, and nitrate concentrations in response to fertigation practices, including fertilization frequency and delivery method.”

The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.