Impact of integrated nutrient management practices on nutrient content and uptake of wheat

Abstract

To study the effect of Azotobacter and vermicompost on nutrient content and uptake of desi wheat an experiment was conducted during the rabi season of 2017-2018 at the Agronomy Research Farm of Chaudhary Charan Singh Haryana Agricultural University, Hisar. The soil of the experimental field is sandy loam in texture, slightly alkaline in reaction, low in nitrogen and organic carbon, medium in available phosphorus and potassium. The experiment was laid out in Randomized Block Design replicated thrice with ten treatments viz. T1 (Control), T2 (Vermicompost @ 6 t ha-1), T3 (Azotobacter + Vermicompost @ 6 t ha-1), T4 (30 kg N ha-1 + Vermicompost @ 3 t ha-1), T5 (40 kg N ha-1 + Vermicompost @ 2 t ha-1), T6 (50 kg N ha-1 + Vermicompost @ 1 t ha-1), T7 (30 kg N ha-1 + Azotobacter + Vermicompost @ 3 t ha-1), T8 (40 kg N ha-1 + Azotobacter + Vermicompost @ 2 t ha-1), T9 (50 kg N ha-1 + Azotobacter + Vermicompost @ 1 t ha-1) and T10 (60 kg N ha-1). Three irrigations were given at different critical stages of the crop. Results showed that except P content in straw, various combinations of nitrogen fertilizer, vermicompost and Azotobacter significantly influenced the N, P and K content, its uptake in grain and straw and total N, P and K uptake. Increasing levels of fertilizer resulted in significant increase in nutrient content and its uptake in grain and straw. Treatments, T10 being at par with T9 and T8 recorded significantly higher N, P and K content and uptake in grain and straw, total N, P and K uptake of desi wheat.