Effect of STCR equation on soil characters and nutrient availability in cotton under Rainfed conditions in Vertisols

Abstract

To study the effect of soil test crop response equation on soil properties and nutrient availability in cotton under rainfed cultivation was conducted at Integrated Farming Systems Research Field, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, during kharif season 2016-17. The experiment was laid out in RBD with eight treatments replicated thrice. Organic sources used FYM, along with chemical fertilizers. The results shown that highest organic carbon content (4.75 g kg-1) lowest values of soil pH (7.81) and lowest values of EC (0.30 dSm-1) and Caco3 (6.30 %) as well as significantly highest available nitrogen (187.67 kg ha-1), phosphorus (24.20 kg ha-1), potassium (329.33 kg ha-1) were reported in the treatment of FYM @5 t ha-1 than other treatments. The experiment can be concluded that, application of chemical fertilizers along with FYM significantly improves the properties of soli and available of nutrients in Vertisols under rainfed cotton