Response of integrated nutrient management practices on growth and yield of late sown wheat

Abstract

The field experiment “response of integrated nutrient management practices on growth and yield of late sown wheat.’ was conducted during winter season of 2015-16 The experiment consisting of treatment viz, T1 (Control), T2 (Inorganic source of nitrogen (120N: 60P : 40K), T3 (100% RDF + 25% N through FYM), T4 (100% RDF + 25% N through Vermicompost ), T7 (75% RDF through inorganic sources (90N: 45P : 30K ), T8 (75% RDF through inorganic sources +25% N through FYM), T9 (75% RDF through inorganic sources + 25%N through Vermicompost), T10 (75% RDF through inorganic sources + 25% N through FYM + Azotobactor) and T11 (75% RDF through inorganic sources 25% N through Vermicompost + Azotobactor) were laid out in Randomized Block Design with three replications. Growth parameters such as plant height, number of shoots m-2, total dry matter accumulation m-2 were significantly higher in 100% recommended dose of fertilizers and 25% N through Vermicompost + Azotobactor over other treatments. Yield attributes viz., spike length and number of grains spike -1 were increased significantly with 100% recommended dose of fertilizers through inorganic source and 25% N through Vermicompost + Azotobactor which was at par with all treatments excepted T1, T7,T8. Grain and straw yields and nutrient (NPK) uptake were maximum with 100% recommended dose of fertilizers and 25% N through Vermicompost + Azotobactor. Application of 100% of recommended dose of nitrogen through inorganic source + 25 % N Vermicompost + Azotobactor - improved available N P and K content in soil as compared to other treatments. Protein content was maximum with T6 (100% recommended dose of fertilizers and 25% N through Vermicompost + Azotobactor). Highest gross returns were obtained with 100% recommended dose of fertilizers + 25% N through Vermicompost followed by T5.The highest B:C ratio (1.78) were calculated with T6 followed by T5 (1.73) and lowest T1 (1.10).