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Agronomy
Volume 13
Issue 6
10.3390/agronomy13061626
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Article

Root System Response and Yield of Irrigated Rice in Relation to Irrigation, Potassium and Nitrogen under Subtropical Conditions

by
Md. Salahuddin Kaysar
1,
Uttam Kumer Sarker
1,
Sinthia Afsana Kheya
1,
Ahmed Khairul Hasan
1,
Md. Alamgir Hossain
2,
Uzzal Somaddar
3,
Gopal Saha
3,
Apurbo Kumar Chaki
4,5,
Abeer Hashem
6,
Elsayed Fathi Abd_Allah
7 and
Md. Romij Uddin
1,*
1
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
2
Department of Crop Botany, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
3
Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh
4
On Farm Research Division, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh
5
School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
6
Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
7
Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
*
Author to whom correspondence should be addressed.
Agronomy 2023, 13(6), 1626; https://doi.org/10.3390/agronomy13061626
Submission received: 16 April 2023 / Revised: 13 June 2023 / Accepted: 14 June 2023 / Published: 17 June 2023
(This article belongs to the Section Soil and Plant Nutrition)
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Abstract

Irrigation and fertilizer are two essential factors affecting rice root traits and yield. In this respect, a pot experiment was performed at the boro (dry season irrigated) season of 2021–2022 in the Department of Agronomy of Bangladesh Agricultural University, Mymensingh, Bangladesh. The variety Binadhan-10 was planted at two irrigation conditions, i.e., saturation (S) and continuous flooding (CF); two potassium (K) doses, e.g., 65 kg ha−1 (K65) and 98 kg ha−1 (K98); and two nitrogen (N) doses, i.e., 140 kg ha−1 (N140) and 210 kg ha−1 (N210). The experiment was laid in a split plot design with eight treatments and replicated thrice. The findings confirmed the significant variation in irrigation, K and N and the effects on root number (RN), root length (RL), root volume (RV), leaf area index (LAI), total dry matter (TDM), yield attributes and yield. Considering the interaction among irrigation, K and N, the S conditions with K65 and N140 showed best performance in relation to root parameters. At 80 DAT, the highest RN (373.00), RL (1700.00 cm), RV (8.90 cm3 hill−1), LAI (4.94) and TDM (25.83 g plant−1) was obtained from this combination. Grain yield (GY) and root traits, except root porosity, showed a significant positive association. Grain yield (GY) was the highest (27.12 g pot−1) under S conditions with K65 and N140. Therefore, the variety Binadhan-10 can be successfully cultivated with K65 and N140 under S conditions.
Keywords: root volume; total dry matter; correlation matrix; rice; harvest index root volume; total dry matter; correlation matrix; rice; harvest index

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MDPI and ACS Style

Kaysar, M.S.; Sarker, U.K.; Kheya, S.A.; Hasan, A.K.; Hossain, M.A.; Somaddar, U.; Saha, G.; Chaki, A.K.; Hashem, A.; Abd_Allah, E.F.; et al. Root System Response and Yield of Irrigated Rice in Relation to Irrigation, Potassium and Nitrogen under Subtropical Conditions. Agronomy 2023, 13, 1626. https://doi.org/10.3390/agronomy13061626

AMA Style

Kaysar MS, Sarker UK, Kheya SA, Hasan AK, Hossain MA, Somaddar U, Saha G, Chaki AK, Hashem A, Abd_Allah EF, et al. Root System Response and Yield of Irrigated Rice in Relation to Irrigation, Potassium and Nitrogen under Subtropical Conditions. Agronomy. 2023; 13(6):1626. https://doi.org/10.3390/agronomy13061626

Chicago/Turabian Style

Kaysar, Md. Salahuddin, Uttam Kumer Sarker, Sinthia Afsana Kheya, Ahmed Khairul Hasan, Md. Alamgir Hossain, Uzzal Somaddar, Gopal Saha, Apurbo Kumar Chaki, Abeer Hashem, Elsayed Fathi Abd_Allah, and et al. 2023. "Root System Response and Yield of Irrigated Rice in Relation to Irrigation, Potassium and Nitrogen under Subtropical Conditions" Agronomy 13, no. 6: 1626. https://doi.org/10.3390/agronomy13061626

APA Style

Kaysar, M. S., Sarker, U. K., Kheya, S. A., Hasan, A. K., Hossain, M. A., Somaddar, U., Saha, G., Chaki, A. K., Hashem, A., Abd_Allah, E. F., & Uddin, M. R. (2023). Root System Response and Yield of Irrigated Rice in Relation to Irrigation, Potassium and Nitrogen under Subtropical Conditions. Agronomy, 13(6), 1626. https://doi.org/10.3390/agronomy13061626

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