Effect of soil test based nutrient management on crop yield, nutrient requirement and relationship between nutrient uptake and yield of mustard (Brassica campestris) in Alfisol

Abstract

A field experiment was conducted based on STCR methodology on mustard with the variety ‘Indira Toriya - 1’ in Re-inforced resovable block design (RRBD) plot sized 7x3 m with the spacing of 50x20 cm at research farm of Shaheed Gundadhoor College of Agriculture and Research Station Jagdalpur, Chhattisgarh during Rabi 2014-15. The field was prepared without any disturbance to the already created three fertility gradient strips (L0, L1, L2). Then each strip was subdivided into 24 plots of equal size. A set of 24 treatments out of which 21 treatments in combination with four levels of nitrogen (0, 50, 100 and 150 kg ha-1), four levels of phosphorus (0, 30, 60 and 90 kg ha-1) four levels of potassium (0, 30, 60 and 90 kg ha-1) and three levels of FYM (0, 5, 10 t ha-1) and three controls were superimposed to different plots in each strip. The result showed that the yield of mustard increased with increasing nutrient addition. The nutrient requirement for production of one quintal mustard grain was 4.25:1.08:3.31 kg N:P:K and the relationship between crop yield and nutrient uptake was linear.