Abstract
Application of composts is an alternative of synthetic agrochemicals for eco-friendly farming. Work is limited on the effective and economic way of compost application in Bangladesh. A study was done at the Field Science Center, Saga University, Japan with green tea waste – rice bran compost (GRC) application. Radish (Raphanus sativus L.), spinach (Spinacia oleracea L.) and komatsuna (Brassica rapa var. pervidis) were used as test plants. GRC was applied at 1.0 kg m-2 by mulching on soil after seeding. It enhanced seed germination, seedling growth and improved crop yield of spinach and radish grown in a controlled condition. Among the two application methods, post-sowing mulching (PSM) reduced water loss from upper soil surface, thus enhanced seed germination and better growth compared to pre-sowing incorporation (PSI) system. This study also suggests that improper compost incorporation to soil may impair seed germination, seedling growth and likely crop yield.
 SAARC J. Agri., 17(1): 211-217 (2019)
Highlights
Organic amendments in agriculture have contributed immensely to converting much of the fragile land of the world into stable productive zones (Svotwa et al, 2009)
Considering the above facts, this study was designed to determine the effective way of compost application in an organic farming system for vegetables production
Negative effect on seed germination was found at 10-1 concentration compared to control up to 12 hrs of incubation
Summary
Organic amendments in agriculture have contributed immensely to converting much of the fragile land of the world into stable productive zones (Svotwa et al, 2009). Composting is a viable means of transforming various organic wastes into products that can be used safely and beneficially as bio fertilizers and soil conditioners in organic farming systems. 30:70 ratio of green tea waste and rice bran (v/v) produced the best compost quality that enhanced spinach growth and controlled weeds Research on the effective and economic way of application of this compost for maximizing yield and quality not yet has done. Research is needed to determine it and to replace or supplement chemical fertilizers for vegetables production. Considering the above facts, this study was designed to determine the effective way of compost application in an organic farming system for vegetables production
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