Effect of Different Boron Application Schedules on Yields, Boron Concentration and Uptake of Rice-Wheat Rotation and Changes in Chemical Fractions of Soil Boron

The yields realized under rice-wheat rotation are generally low in the geographical regions prone to B deficiency and a sound B application schedule recommendation is required for the sustainable yields and enhanced soil fertility. The effect of different B application schedules involving different...

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Bibliographic Details
Published in:Communications in Soil Science and Plant Analysis 2024-08, Vol.55 (14), p.2169-2180
Main Authors: Pachauri, S. P., Srivastava, P. C., Pathak, Anand, Behera, S. K., Shukla, A. K.
Format: Article
Language:English
Subjects:
Agricultural practices
Agricultural production
Ammonium
Ammonium compounds
Borax
Boron
Boron uptake
Cereal crops
chemical fractions in soil
Crop rotation
Crop yield
Grain
mollisol
Nutrition
Potassium phosphate
Potassium phosphates
Rice
Rotation
Sandy loam
Schedules
Soil
Soil chemistry
Soil fertility
Soils
Sustainable yield
Wheat
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Summary:The yields realized under rice-wheat rotation are generally low in the geographical regions prone to B deficiency and a sound B application schedule recommendation is required for the sustainable yields and enhanced soil fertility. The effect of different B application schedules involving different dosages and frequency of B application was investigated on yields and B nutrition of rice-wheat rotation and changes in the chemical fractions of B in soil in six years field study carried out on a sandy loam (Typic hapludoll). Based on the average grain yields of rice and wheat during the period of experimentation, application of 1.5 kg B as borax ha −1 to rice crop on alternate years was the profitable practice for mollisols as it gave an average yearly production of 5.51 t of rice grain and 4.28 t of wheat grain ha −1 . The average concentration of B in flag leaves and grains of rice was much lower compared to wheat crop. The recommended schedule of B application to rice-wheat rotation resulted in a Benefit: Cost ratio of 11: 1 and also maintained the optimum level of B in soil. Most of the added B markedly increased specifically bound (0.05 M KH 2 PO 4 extractable), ammonium oxalate (pH 3.3) extractable fractions followed by residual and organically bound fraction in the soil.
ISSN:0010-3624
1532-2416
1532-4133
DOI:10.1080/00103624.2024.2346224