首页|Response of cotton (Gossypium hirsutum) to organic amendments and weedmanagement practices
Response of cotton (Gossypium hirsutum) to organic amendments and weedmanagement practices
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NSTL
? 2021, Indian Society of Agronomy. All rights reserved.A field experiment was conducted during 2015–16 and 2016–17 at Department of Agronomy, TNAU, Coimbatore, Tamil Nadu to determine the effects of organic amendments and weed-control methods on weed control, yield and fibre quality of cotton (Gossypium hirsutum L.). Different organic amendments included (farmyard manure, vermicompost, composted poultry manure and goat manure), while weed-control methods comprised manual weeding, twin wheel hoe weeder and power-operated weeder for improvement in growth and yield of cotton. The results of pooled data indicated that, composted poultry manure along with hand-weeding twice at 20 and 45 days after sowing (DAS) recorded significantly lower weed density (27.29 No./m2), higher weed-control efficiency (84.80%) and higher crop dry-matter production (4,637 kg/ha), sympodial branches/plant (19.74), fruiting points/plant (54.01), bolls/plant (20.87), seed-cotton yield (1,602 kg/ha) compared with the other treatments. Application of organic materials along with manual weeding significantly improved available nutrient content, soil microbial biomass carbon, decreased soil electrical conductivity in short-term, and resulted in higher cotton yield and higher soil organic matter content. These results indicated that, application of composted poultry manure in addition with hand-weeding or weeding with power-operated weeder would do more to improve soil organic matter content, increase soil organism abundance, reduce weed population and improve seed-cotton yield.
NSTL
