Effect of Methods of Tillage, Land Configurations and Sources of Nutrients on the Growth, Yield, Quality and Economics of Direct Seeded Rice (Otyza sativa L.)

摘要

From the two years research experiment conducted on "Effect of methods of tillage, land configurations and sources of nutrients on the performance of direct seeded rice (Oryza sativa L.)" was laid out in split-split plot design comprising 30 treatmentcombinations replicated thrice. The treatment flatbed (I_i) gave significantly the higher net monetary returns over rest of raised bed treatment. The yield contributing characters were observed to be significantly more and significantly more number of unfilled grain per panicle in treatment KAB with applying micronutrients (N3) recorded higher values followed by treatment of Modified KAB in combination with micronutrients (N4) which was at par with each other but significantly superior over rest of thetreatments. Significantly the highergrain yieldwas found in treatment of KAB+ soil application of micronutrients (N3) followed by treatment of application of modified KAB in combination with micronutrients (N4) which were at par with each other but wasobserved to be significantly superior than the treatment of recommended dose of fertilizer (Nj) and recommended dose of fertilizer + soil application of micronutrients (N2>- Higher gross monetary returns were obtained by the treatment of N3 followed by the treatment N4 which were at par with each other but significantly superior over rest of the treatments. In the year 2014 treatment N4 was followed by treatment N2, and Ng in descending order of significance while in the year 2015 treatments N2 and Nj were found to be at par with each other but significantly superior over treatment Nq. Net monetary returns of rice were significantly affected due to different sources of nutrient during both the years of study. The treatment N3 gave significantly the highest net monetary returns but treatment N3 was at par with treatment N4 in the year 2015.The highest B: C ratio of 1.52 and 1.56 were recorded by the treatment combination TjL1N3 i.e. conservation tillage with flat bed and application of KAB + along withsoil application of Zinc sulphate 25 kg ha"1 and Copper sulphate 5 kg ha"1 over rest of treatment combinations.