Effect of different residue based composts and bio fertilizers on uptake of nutrients and protein yield of pigeonpea (Cajanus Cajan (L.) Millsp.)

Abstract

A field experiment was conducted at Main Agricultural Research Station, Dharwad on medium black soil during Kharif-2016 to evaluate the effect of different residue based composts and biofertilizers on seed protein content, protein yield, nutrient uptake and yield of pigeonpea. There were 9 treatments consist of T1- T6: sesame, wheat, pigeonpea, cotton and maize residue composts and FYM along with RDF and biofertilizers, respectively and T7: FYM without biofertilizers along with RDF, T8-RDF with biofertilizers and T9-RDF alone. At harvest, T6 has recorded significantly higher uptake of nitrogen, phosphorus and potassium (143.76, 22.68 and 36.17 kg ha-1, respectively) over other treatments and While, significantly lower uptake of nitrogen, phosphorus and potassium (92.27, 12.31 and 22.49 kg ha-1, respectively) were recorded with RDF alone. Significantly higher seed protein content and protein yield (24.38 % and 480.00 kg ha-1) was recorded in T6 as compared to T8 (21.71 % and 307.62 kg ha-1, respectively) and T9 (22.19% and 278.61 kg ha-1, respectively) and all other treatments were found on par with T6. Similarly significant higher seed yield (2,158 kg/ha) and haulm yield (5,176 kg/ha) was recorded in T6 as compared to T8 (1,387 and 4,313 kg/ha, respectively) and T9 (1,283 and 4,183 kg/ha, respectively) and other treatments were found on par with T6. Application of crop residue based composts (sesame, wheat, pigeonpea, cotton and maize) or FYM along with biofertilizers and RDF were found optimum to get substantial pigeonpea yield.