最后分析了浓磷酸中的杂质含量对磷酸二铵产品总养分的影响。

Then the effects of the impurities in concentrated phosphoric acid on the nutrient content in diammonium phosphate are discussed.

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下面的日粮大约含有18%的粗蛋白和80%的可消化总养分（干物质基础）。

The following ration will contain approximately 18%crude protein and 80% TDN on a DM basis.

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大多数土壤速效养分的半方差结构明显，结构性方差占总方差的比例均在50%以上。

The semi-variation structure for most soil available nutrients was obvious and the rate of structural variation accounted for more than 50% of the total variation.

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