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首页> 外文期刊>African Journal of Biotechnology >Effects of green manure crops and mulching technology on reduction in herbicide and fertilizer use during rice cultivation in Korea
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Effects of green manure crops and mulching technology on reduction in herbicide and fertilizer use during rice cultivation in Korea

机译：在韩国水稻种植中，绿色肥料作物和覆盖技术对减少除草剂和肥料使用的影响

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摘要

Green manure crops are primarily used in environmentally friendly agricultural practices to reduce the application of chemical fertilizer and herbicide. In this study, a two-year field experiment was conducted to evaluate the effects of paper and plastic mulching with hairy vetch alone or in combination with barley on weed control and rice yield. In addition, treatment effects on soil redox potential (Eh) and the concentration of ammonium (NH4+) in rice paddy were investigated. The results showed that plastic film (10 or 20 μm) and paper mulching with hairy vetch alone had no significant effects on weed density and rice yield when compared with conventional practice (herbicide and fertilizer application) during the first year. However, during the second year, plastic film (20 μm) with partial tillage of hairy vetch alone increased rice yield and decreased weed occurence; but barley and hairy vetch mixture showed opposite trends. Plastic film mulching led to a decrease in soil redox potential, mainly due to the decomposition of soil organic matter. In addition, plastic film mulching increased NH4+-N contents in rice paddy soil. These results suggest that the combination of plastic film with hairy vetch and barley mixture can be used in rice fields to reduce the use of chemical fertilizer and herbicide.
机译：绿色肥料作物主要用于环境友好的农业实践中，以减少化学肥料和除草剂的使用。在这项研究中，进行了为期两年的田间试验，以评估纸和塑料覆盖物与单独的多毛紫etch或与大麦结合对杂草控制和水稻产量的影响。此外，研究了对稻田土壤氧化还原电势（Eh）和铵态氮（NH4 +）浓度的处理效果。结果表明，与第一年的常规做法（施用除草剂和肥料）相比，仅用塑料薄膜（10或20μm）和用毛hair虫覆盖的纸对杂草密度和稻米产量没有显着影响。然而，在第二年，仅用部分耕作的毛v虫进行耕作的塑料膜（20μm）提高了水稻的产量并减少了杂草的发生;但是大麦和毛v子的混合物表现出相反的趋势。地膜覆盖导致土壤氧化还原电位下降，这主要是由于土壤有机质的分解。此外，覆盖地膜可增加稻田土壤中的NH4 + -N含量。这些结果表明，塑料薄膜与多毛紫v和大麦混合物的结合可用于稻田，以减少化肥和除草剂的使用。

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