Nutrient management of mustard varieties under saline water irrigation
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Date
2019
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CCSHAU
Abstract
Several studies have been conducted on different varieties of mustard under the effect of mineral fertilizers and saline irrigation conditions. The experiment on “Nutrient management of mustard varieties under saline water irrigation” was carried out in rabi season of 2017-18 at Research farm, Soil Science Department, CCS HAU, Hisar. The experiment was laid out in a split plot design with three replications, with four mustard varieties in main plots (Kranti, Giriraj, CS-54 and CS-58) and three fertilizer doses in sub-plots [RDF (N, P and K @60:20:20 kg ha -1), 125% and 150% RDF] with application of saline water for irrigation (7 dSm-1). The results showed that the plant parameters like plant height, primary and secondary branches per plant, number of siliqua and seeds per siliqua showed significant increase up to application of 150% RDF under saline water irrigation. 1000-seed weight reported non-significant increase with increased fertilizer doses and recorded maximum in variety CS-58 (5.90 g) at 150% RDF. Oil content decreased non-significantly from RDF to 150% RDF and reported maximum under variety CS-58 (40.17% at RDF). Among four mustard varieties CS-58 recorded maximum seed and straw yield (22.89 and 88.33 q ha-1) at 150% RDF followed by CS-54, Giriraj and Kranti. Nutrient content (N, P and K) in straw increased significantly up to 125% RDF and remained at par with 150% RDF being highest in variety CS-58 followed by variety CS-54, Giriraj and Kranti, respectively. Na+: K+ decreased non-significantly from RDF to 150% RDF and mean significantly higher ratio was recorded in variety Kranti (2.85). Soil properties like pH, ECe and organic carbon reported no significant changes with respect to different varieties and fertilizer doses. Available N, P, K and S of soil after crop harvest increased significantly up to the application of 150% RDF and observed maximum under variety Kranti. The cationic composition of soil extract was observed in order Na⁺> Mg²⁺ > Ca²⁺> K+ likewise the anionic composition of soil extract was observed in order Cl-> HCO3-> SO42-> CO32-, respectively. Therefore, variety CS-58 reported better results with the application of 150% RDF under saline water irrigation.
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