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 |
The field experiments were carried out in clay loam soil of wetland farms of Tamil Nadu Agricultural University, Coimbatore during Samba 2009 and 2010 to elucidate the effect of rice establishment, weed and nutrient management practices on microbial population in the rhizosphere and yield of transplanted rice. The experiments were laid out in split plot design with rice establishment and weed management methods (M1: Conventional planting + hand weeding, M2: Conventional planting + one way rotary weeding, M3: SRI planting + hand weeding, M4: SRI planting + two way rotary weeding) in main plots and nutrient management practices [S1: Absolute control, S2: 150:50:50 kg NPK ha-1, S3: S2 + 12.5 t FYM ha-1, S4: S3 + Azophosmet (Seed treatment @ 2 g kg-1 and soil application @ 2 kg ha-1) + pink pigmented facultative methylotroph (PPFM) (foliar spray @ 0.1% at active tillering, panicle initiation and at 50 per cent flowering stage)] in sub plots, replicated thrice. The SRI planting with two way rotary weeding thrice at weekly interval starting from 15 days after transplanting registered higher microbial population in the rhizosphere viz., bacteria, fungi, actinomycetes, Azospirillum, phosphobacteria and Pink pigmented facultative methylotroph (PPFM) at flowering stage and higher grain and straw yield. Microbial population and yield were higher with combined application of recommended dose of fertilizer (150:50:50 kg NPK ha-1) along with 12.5 t ha-1 FYM and biofertilizers viz., Azophosmet as soil and seed treatment and PPFM as foliar spray.
Citations |
 |
 |
 |
 |
