Performance of Direct Seeded Rice under Integrated Nutrient Management Practices in Old Alluvial Soils of West Bengal

Abstract

A field experiment was conducted during Kharif 2018-19 and 2019-20 at the farm of Regional Research station, Old Alluvial Zone, Uttar Banga Krishi Viswavidyalaya, Majhian, Dakshin Dinajpur, West Bengal to study the Performance of direct seeded rice (var. GB-1) under integrated nutrient practices. Highest number of effective tillers plant-1 (17.81), panicle length (29.56 cm) and number of filled grains panicle-1 (262.15) as well as seed yield (3051.89 kg ha-1) have been observed where direct seed rice crop received 75% of the recommended dose of fertilizers, FYM @ 5ton ha-1 and brown manuring with dhaincha. Highest number of effective tillers plant-1 (18.86), panicle length (28.89 cm) and number of filled grains panicle-1 (260.54) and seed yield (3079.92 kg ha-1) have also been observed with spraying of Vermiwash and N-P-K 19:19:19 at 35 DAS and 55 DAS respectively to the direct seeded rice crop. An increasing trend in residual fertility status has also been observed with this treatment compared to the initial fertility status of the soil. This treatment can be an acceptable option of integrated nutrient management practice for the direct seeded rice growers of the old alluvial zone.

Effect of Establishment Methods and Nutrient Management Practices on Growth Characters and Yield of Rice (Oryza sativa L.)

“…The decline or stagnation in yield has been attributed to nutrient mining and reduced use of organics manures [16]. Under high input productionsystems where productivity cannot be further increased with incremental use of mineral fertilizers alone, the addition of organic sources could increase yield through increased soil productivity and higher fertilizeruse efficiency [17,18,19]. Singh and Kumar [20] reported increased yield and nutrient use efficiency in rice with organic manures.…”