Productivity and economics of rice (Oryza sativa L.) as influenced by establishment methods and nutrient management

Abstract

Field experiment was conducted at Indira Gandhi Krishi Vishwavidyalaya, Raipur during kharif, 2017 to study the effect of Productivity and Economics of rice (Oryza sativa L.) as influenced by establishment methods and nutrient management. The result revealed that in case of establishment method highest number of panicle m-2 was observed under line sowing before onset of monsoon (M1). However panicle weight was significantly higher under transplanting but remained on par with line sowing after onset of monsoon(M2). Number of filled grains was significantly higher under transplanting method (M3) which was comparable with line sowing after onset of monsoon (M2). The maximum number of unfilled grains and sterility percentage was noticed under line sowing before onset of monsoon which was statistically at par with line sowing after onset of monsoon (M2) for unfilled grains. Highest grain yield and harvest index was recorded under Line sowing before onset of monsoon (M1) which was statically at par with transplanting method (M3) and with line sowing after onset of monsoon (M2) for grain yield and harvest index respectively. Straw yield was found maximum under transplanting (M3). In case of nutrient management number of panicle, panicle length and panicle weight were significantly higher under the application of 150% RDF (N3) which was comparable with application of 100% RDF (N1) and LCC based nitrogen application (N4) for Number of panicle and panicle length. Application of 150% RDF (N3) produced significantly higher number of filled grains than that of other treatments. Maximum number of unfilled grains and sterility percentage was found under farmer’s practice (N5). The lowest number of unfilled grains and sterility percentage were noticed under the application of 150% RDF (N3). Significantly higher grain and straw yield was produced by application of 150% RDF (N3) than other nutrient management practices. However, the application of 100% RDF (N1) was as good as 150% RDF (N3) for straw yield. The lowest grain and straw yield was observed under farmer’s practice which was at par with 75% RDF + 25% (equivalent to N dose) through FYM. In case of economics the highest cost of cultivation was incurred under transplanting (M3) and 150% RDF (N3). Gross return, net return and B:C ratio were maximum under line sowing before onset of monsoon (M1) and application of 150% RDF (N3).