Impact Of Hydrogel And Biofertilizer On Growth And Yield Of Linseed Linum Usitatissimum L Under Rainfed Condition

Abstract

An investigation entitled Impact of hydrogel and biofertilizer on growth and yield of linseed (Linum usitatissimum L) under rainfed condition was carried out at oil seed Farm of C S Azad University of Agriculture and Technology, Kanpur during two consecutive Rabi seasons of 2020-21 and 2021-22.The soil of experimental field was sandy loam in texture having pH 7.8, organic carbon 0.03 % and medium in available nitrogen 0.030% phosphorus was 17 kg and available potash 195 kg/ha with a view of find out the suitable treatment of nutrient management along with moisture conservation practices. The treatments comprised of with nutrient management viz.100% RDF, 75% RDF + Azotobacter , 50% RDF +Azotobacter + PSB in combination with three moisture conservation practices i.e. Dust mulch, Hydrogel at 2.5kg/ha , Hydrogel at5kg/ha tested in factorial Randomized Block Design with three replication. The response doses of nutrient management with moisture conservation practices analyzed on growth characters, plant population, flowering, yield attribute and yield of linseed crop. In nutrient management the higher seed yield obtained 75% RDF + Azotobacter (13.02q/ha and 13.23q/ha).which were higher than the other nutrient management practices. Similarly in moisture conservation practices the higher seed yield obtained application of hydrogelat5kg/ha in first year and second year 13.55 q/ha and 14.17q/ha, respectively. However, lowest seed was yield recorded (9.25 q/ha and 9.64 q/ha) in dust mulch in both year of experiment. newlineAmong all the treatments hydrogel at5kg/ha and 75% RDF + Azotobacter recorded maximum seed yield. In nutrient management 75% RDF +Azotobacter net return obtained Rs.26226, Rs.29745 and B : C ratio recorded 1:1.79 and 1:1.82. Similarly using the hydrogel at 5kg/ha in experiment with net return of 30632 Rs/ha and 33569 Rs/ha, B : C ratio recorded 1:1.83 in and 1:1.85, respectively . newline newline