n. bentonite
misc. clayey soil ; argillaceous soil ; clay soil
沙质土壤中氮素的淋失量明显高于粘质土壤。
The amount of nitrogen leached from sand soil exceed in that from clay soil.
从缓释肥料在土壤的养分残留量变化特点看出，无论在砂质或粘质土壤中，均具缓释作用。
We have seen the varied characteristic of nutrient residual quantity of slow release fertilizer in soil, Both possess activity of slow release in sand or clay soil.
轻壤质土壤中碱性酸酶活性低于轻粘质土壤中的酶活性。贫磷土壤中磷酸酶活性高于富磷土壤中磷酸酶的活性。
The alkaline phosphatase activity in light clayey soil is higher than that in light loamy soil, also is higher in poor-phosphate soil than in rich-phosphate soil.
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