plough layer soil 农田土壤
Plough layer construction 耕层构造
phenolic acid in plough layer 耕层酚酸
Phenolic acids in plough layer 耕层酚酸
layer mixing plough 土层混合犁
It increased plough layer soil water and available nutrients content.
大豆覆膜增加了土壤水分与速效养分含量。
The results showed that the grain yield and rice quality decreased under the conditions of thin plough layer.
结果表明，薄耕层使米质变劣，产量锐减。
Soil magnetism of the plough layer is in relatively good correlation with organic carbon and P but shows a rather poor correlation with N and K.
耕作层的土壤磁化率与有机碳、磷含量具有较好的相关性，而与氮、钾含量相关性较差。
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