But the low benefit of mono - cereal cropping structure is their main weak point which are unfavourable for providing plentiful agricultural products and improving the physical character of soil.

但生产内容单调，多数为纯粮型种植结构，经济效益不高，不利丰富社会产品和改善土壤物理性状。

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So we should meet the various needs of the market, adjust and better the cropping industrial structure.

因此，必须适应市场需求变化、调整与优化作物种植结构。

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Arthropod biodiversity and community structure as influenced by different winter-cropping systems in the paddy fields of Enping City, Guangdong Province.

广东恩平市稻区越冬期不同土地利用方式下主要节肢动物多样性调查分析。

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