- 期刊
- OpenAccess
Assessment of soil quality parameters and yield of rainfed Bt. Cotton as influenced by application of herbicides in Vertisols
並列摘要
The present study pertains to the effect of different herbicides viz. Pendimethalin @ 1.0 kg ai ha^(-1) as a pre emergence herbicide, Pyrithiobacksodium @ 62.5 g ai ha^(-1), Quazolfopethyl @ 40 g ai ha^(-1), Fenoxyprop @ 12 g ai ha-1 as a post emergence herbicide (25 DAS) and management practices on physico-chemical, biological properties, seed cotton, dry matter yield and soil fertility status. The results revealed that organic carbon content (8.0 g kg^(-1)), soil porosity (48 per cent) and cation exchange capacity (63.66 cmol (p+) kg^(-1)) was significantly higher in the plots treated with 3 hoeings and 3 hand weedings as compared to all other herbicide treatments applied as a pre and post emergence. Almost similar trend was observed in the seed cotton yield (1868 kg ha^(-1)), dry matter yield (2835 kg ha^(-1)), available N (184.90 kg ha^(-1)), available P (11.70 kg ha^(-1)) and available K (666.20 kg ha^(-1)). The practice of 3 hoeing and 3 hand weedings showed the highest efficiency in weed control and thus reflected in higher yields when maintaining soil fertility status.
延伸閱讀
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