Improved Method of Boron Fertilization in Rice ( Oryza sativa L.)–Mustard ( Brassica juncea L.) Cropping System in Upland Calcareous Soils

Ranjan Laik, Santosh Kumar Singh, Biswajit Pramanick, Vandana Kumari, Debabrata Nath, Eldessoky S. Dessoky, Attia O. Attia, Mohamed M. Hassan and Akbar Hossain
Additional contact information
Ranjan Laik: Department of Soil Science, Dr. Rajendra Prasad Central Agricultural University, Samastipur 848125, Bihar, India
Santosh Kumar Singh: Department of Soil Science, Dr. Rajendra Prasad Central Agricultural University, Samastipur 848125, Bihar, India
Biswajit Pramanick: Department of Agronomy, Dr. Rajendra Prasad Central Agricultural University, Samastipur 848125, Bihar, India
Vandana Kumari: Department of Soil Science, Dr. Rajendra Prasad Central Agricultural University, Samastipur 848125, Bihar, India
Debabrata Nath: Department of Soil Science, Dr. Rajendra Prasad Central Agricultural University, Samastipur 848125, Bihar, India
Eldessoky S. Dessoky: Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Attia O. Attia: Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Mohamed M. Hassan: Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Akbar Hossain: Department of Agronomy, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh

Sustainability, 2021, vol. 13, issue 9, 1-12

Abstract: Calcareous soils are highly deficient in boron (B) due to having high levels of free CaCO 3 and low organic matter. This has become one of the most important deficient micronutrients in Indian soil after zinc (Zn). For various rice ( Oryza sativa L.)-based cropping systems, B fertilization is essential for increasing crop productivity and the biofortification of the crop, thus a suitable soil application protocol for B fertilization is required for B-deficient soils. In a six-year experiment, different rates of B application, namely, 0.5, 1.0, 1.5, and 2.0 kg ha −1 y −1 , were evaluated to determine the effects of three different modes of B fertilization, i.e., applied only in the first year, applied in alternating years, and applied every year, in a rice ( Oryza sativa L.)–Indian mustard ( Brassica juncea L.) cropping system. It was observed that the application of B at 1.5 kg ha −1 every year or 2 kg ha −1 in alternate years resulted in the highest yield of rice and mustard, as well as the maximum system productivity of the rice–mustard cropping system. Application of 2 kg ha −1 of B in the initial year showed the maximum B uptake by rice, while application of 1.5–2.0 kg ha −1 of B every year resulted in the maximum B uptake by the mustard crop. Application of B at 2 kg ha −1 in alternate years or 1.5 kg ha −1 every year was the best B-application protocol in B-deficient calcareous soils for ensuring the highest productivity of the rice–mustard cropping system and B availability in the soil.

Keywords: boron fractions; boron fertilization; boron transformation; boron uptake; rice–mustard system (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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