Next Article in Journal
Physiological and Nutraceutical Quality of Green and Red Pigmented Lettuce in Response to NaCl Concentration in Two Successive Harvests
Next Article in Special Issue
Influence of Atomization Nozzles and Spraying Intervals on Growth, Biomass Yield, and Nutrient Uptake of Butter-Head Lettuce under Aeroponics System
Previous Article in Journal
The Effect of Different Fertilization Treatments on Wheat Root Depth and Length Density Distribution in a Long-Term Experiment
Previous Article in Special Issue
Supplementary LED Interlighting Improves Yield and Precocity of Greenhouse Tomatoes in the Mediterranean
Article

An Appraisal of Calcium Cyanamide as Alternative N Source for Spring-Summer and Fall Season Curly Endive Crops: Effects on Crop Performance, NUE and Functional Quality Components

1
Department of Agricultural, Food and Forest Sciences, University of Palermo, 90128 Palermo, Italy
2
Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria, Centro di Ricerca Orticoltura e Florovivaismo, 84098 Pontecagnano Faiano, Italy
3
Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
*
Authors to whom correspondence should be addressed.
Agronomy 2020, 10(9), 1357; https://doi.org/10.3390/agronomy10091357
Received: 28 July 2020 / Revised: 7 September 2020 / Accepted: 7 September 2020 / Published: 10 September 2020
A two-year study was conducted in both spring-summer and fall seasons to evaluate calcium cyanamide (CaCN2) as an alternative nitrogen (N) source for curly endive (Cichorium endivia L. var. crispum) grown in a Mediterranean environment. Four types of N applications were administered: (i) pre-transplanting base application of 100 kg N ha−1 corresponding to 100% of the supplied N (100CC), (ii) pre-transplanting base application of 50 kg N ha−1 corresponding to 50% of the supplied N (50CC) complemented with 50 kg N ha−1 as ammonium nitrate (50AN) supplied through fertigation, (iii) standard application of 100 kg N ha−1 as ammonium nitrate (100AN) supplied entirely through fertigation, and (iv) a N-deprived control (0 kg N ha−1) used as base reference to calculate the N use efficiency indices (NUE). Fall season increased head fresh weight, head height, stem diameter and plant visual quality, compared with the spring-summer season. The CaCN2 and standard fertigation N applications were equally effective in increasing head fresh weight and other physical parameters such as, head height, stem diameter, visual quality, number of leaves and head dry matter when compared to the unfertilized control. However, in spring-summer season, CaCN2, especially when applied straight at 100 kg N ha−1, effectively increased ascorbic acid and total phenolic content, whereas, in fall season, an increase in TSS and ascorbic acid was recorded. In both, spring-summer and fall seasons, CaCN2 significantly decreased N content and nitrogen accumulation (Nacc). Furthermore, CaCN2 pre-transplant application improved NUE indices both in terms of N fertilizer recovery efficiency and in terms of physiological efficiency of applied N. Our results finally demonstrated that NUE indices increased in the fall season as compared to the spring-summer season. View Full-Text
Keywords: Cichorium endivia L. var. crispum; leafy green vegetables; cultivation season; nitrogen fertilizer; CaCN2; functional properties Cichorium endivia L. var. crispum; leafy green vegetables; cultivation season; nitrogen fertilizer; CaCN2; functional properties
Show Figures

Figure 1

MDPI and ACS Style

Sabatino, L.; Iapichino, G.; La Bella, S.; Tuttolomondo, T.; D’Anna, F.; Cardarelli, M.; Consentino, B.B.; Rouphael, Y. An Appraisal of Calcium Cyanamide as Alternative N Source for Spring-Summer and Fall Season Curly Endive Crops: Effects on Crop Performance, NUE and Functional Quality Components. Agronomy 2020, 10, 1357. https://doi.org/10.3390/agronomy10091357

AMA Style

Sabatino L, Iapichino G, La Bella S, Tuttolomondo T, D’Anna F, Cardarelli M, Consentino BB, Rouphael Y. An Appraisal of Calcium Cyanamide as Alternative N Source for Spring-Summer and Fall Season Curly Endive Crops: Effects on Crop Performance, NUE and Functional Quality Components. Agronomy. 2020; 10(9):1357. https://doi.org/10.3390/agronomy10091357

Chicago/Turabian Style

Sabatino, Leo, Giovanni Iapichino, Salvatore La Bella, Teresa Tuttolomondo, Fabio D’Anna, Mariateresa Cardarelli, Beppe B. Consentino, and Youssef Rouphael. 2020. "An Appraisal of Calcium Cyanamide as Alternative N Source for Spring-Summer and Fall Season Curly Endive Crops: Effects on Crop Performance, NUE and Functional Quality Components" Agronomy 10, no. 9: 1357. https://doi.org/10.3390/agronomy10091357

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop