Zinc application boosts rice productivity in Tarai region of Uttarakhand
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Authors
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R. H. Wanjari
ICAR-Indian Institute of Soil Science, Bhopal, Madhya Pradesh 462 038
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Dhiraj Kumar
ICAR-Indian Institute of Soil Science, Bhopal, Madhya Pradesh 462 038
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Shri Ram
ICAR-Indian Institute of Soil Science, Bhopal, Madhya Pradesh 462 038
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Monoranjan Mohanty
ICAR-Indian Institute of Soil Science, Bhopal, Madhya Pradesh 462 038
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S. K. Behera
ICAR-Indian Institute of Soil Science, Bhopal, Madhya Pradesh 462 038
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S. K. Sharma
Indian Council of Agricultural Research, New Delhi 110 012
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S. S. Rathore
ICAR-Indian Agricultural Research Institute, New Delhi 110 012
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Pradeep Sirari
Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145
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Anil Nagwanshi
ICAR-Indian Institute of Soil Science, Bhopal, Madhya Pradesh 462 038
Keywords:
Fertilizer, Mollisols, Plant nutrition, Rice, Uttarakhand, ZincAbstract
Zinc is an essential micronutrient vital for plant growth, structural integrity of membranes, protein synthesis, and gene expression. Though required in small amounts, its deficiency severely limits crop productivity. In the Tarai region of Uttarakhand, rice yields improved significantly with Zn application, especially under balanced nutrient use. Treatments with 100% NPK+Zn and 100% NPK+FYM increased yields by 45% and 56% over 100% NPK, respectively, highlighting Zn as the most limiting factor. Integrated nutrient management sustained Zn availability over time. Thus, incorporating Zn in fertilizer schedules is critical for enhancing and maintaining rice productivity.
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