Vol. 16 No. 3
Effect of tillage and site specific nutrient management on yield, nutrient uptake and status of soil in wheat in rice-wheat cropping system
Author(s): M. SETH, S. MANUJA AND S. SINGH
Abstract: A field experiment was conducted at Experimental Farm of CSK Himachal Pradesh Krishi Vishvavidyalaya, Rice and Wheat Research Centre, Malan to study the effect of tillage and site specific nutrient management on yield, nutrient uptake and status of soil in wheat in rice-wheat cropping system in silty clay loam soil. Results revealed that tillage options had no significant effect on grain yield of wheat while significantly higher grain yield of rice was recorded in conventional tillage as compared to zero tillage. The wheat yield recorded with the application of fertilizer dose recommended by software Nutrient Expert – Wheat for a target of 5.5 Mg ha-1 was considerably lower than the targeted yield indicating the need to improve the software. Top dressing of nitrogen after irrigation gave better result than top dressing of nitrogen before irrigation though the differences were not significant. Conventional tillage and N-rich plot recorded the highest total nutrient uptake of wheat and rice. Soil fertility status (organic carbon, nitrogen, phosphorus and potassium) was higher in zero tillage than conventional tillage.
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