Response of Pea Grain To Varying Irrigation Regimes and Phosphate Levels in Pea-Cotton Rotation

The paper presented embodies the results of a 2-year study conducted at the Haryana Agricultural University, Hissar, with a view to evaluate the influence of three irrigation regimes and two phosphate levels for producing pea grain in pea cotton rotation. The response to irrigation was significant in one of the two seasons. The highest grain yield and maximum water use efficiency was obtained under the medium soil moisture regime i. e., irrigation accorded at 50 per cent depletion of available moisture. The 60 kg/ha level of phosphate was consistently better over the 30 kg P₂O₅/ha dose and the increase in grain yield was also significant in one of the two years. The differential behaviour of irrigation with phosphate fertilization was not found significant.