National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
An investigation was carried out to study the influence of pre-rice incorporation of organic manures viz., green manure and farm yard manure (FYM) and simultaneously, the effect of inorganic source of Nitrogen at different levels was also studied to assess the influence of graded Nitrogen levels on productivity of rice. The results indicated that the organic manurial options i.e., in-situ incorporation of green manure crop (Sesbania aculeata) and farm yard manure @ 10 t. ha-1 (M2 and M3, respectively) significantly influenced the plant growth of rice in terms of plant height, dry matter production, leaf area index etc., in comparison to no manuring treatment (M1). Similarly, the yield attributes and grain yield were also significantly enhanced due to both the organic manurial options. Among organic treatments, in-situ incorporation of green manure (Sesbania aculeata) proved its superiority in increasing grain and straw yields of rice over farm yard manure @ 10 t. ha-1 in the first year only (4479 and 5211 kg ha-1, respectively). The advantage due to M2 and M3 in increasing the grain yield was by 17.4 and 10.4% in the first year and; 19.2 and 21.1% in the second year, respectively over no manuring treatment. As regards to the influence of Nitrogen levels, increasing the levels from 0 to 150% RDN brought significant improvement in plant growth, development, yield attributes and yield of kharif rice during both years of study. Application of 150% RDN increased the grain yields to an extent of 11.8% in the first year and 8.7% in the second year over 100% RDN.
Citations |
 |
 |
 |
 |
