Studies on From And Q/I Relation Ship of Potassium in A Continuously Cropped And Fertilized Acid Soil
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Date
2002
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Birsa Agricultural University, Ranchi
Abstract
With a view to evaluate the effect of long term use of fertilizer and Manures under continuous cropping on soil fertility in respect of k uptake by soybean, different forms of K and quantity – intensity relationship, the present study was undertaken. Taking the post- harvest soil and plant samples of long term fertiliser experiment under Kharif 1999.
The lowest total K uptake (5.62Kgha-1) by soybean crop was found in 100% N+W and the highest (82.70kg ha-1) in 100% NPK +FYM+W treatment followed by 100% NPK+L+W(80.39Kg ha-1).The plot 100% N+W had even lower K uptake compared to control plot (11.37Kgha-1)