The loss of K2O in production of potassium dihydrogen phosphate with monocalcium phosphate and potassium sulphate was studied.

研究了用磷酸二氢钙与硫酸钾复分解生产磷酸二氢钾过程中钾的损失问题。

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The results showed that the effect of the density, phosphate and potassium fertilizer on the growth potential of the Polygonum multiflorum is no significant except leaves number.

从研究结果显示密度，磷肥、钾肥施肥量对何首乌生长潜力影响除叶片数外皆不显著。

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Quantitative study on the quantity of nitrogen fertilizer, phosphate fertilizer and potassium fertilizer was conducted through three-element quadric orthogonal whirling combination design.

采用三因素二次正交旋转组合设计对氮、磷、钾肥的用量进行了定量研究。

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And David Laird, of America's Department of Agriculture, showed that biochar even helped the rich soil of America's Midwest by reducing the leaching from it of a number of nutrients, including nitrate, phosphate and potassium.

ECONOMIST: Biochar could enrich soils and cut greenhouse gases as well

In addition to potassium (Potash), nitrogen, and phosphate are the other two ingredients, in proper balance, necessary to increase crop output and promote overall health of plants.

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