Ground cover management and farmyard manure effects on soil nitrogen dynamics,productivity and economics of organically grown lettuce(Lactuca sativa L.subsp.secalina)期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Ground cover management and farmyard manure effects on soil nitrogen dynamics,productivity and economics of organically grown lettuce(Lactuca sativa L.subsp.secalina)

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