Fertilizer efficiency can be improved by adding mineral materials.

将矿物材料用于肥料中,可以提高肥效,改良土壤.

As one of the effective approaches in improving fertilizer efficiency and increasing yield, the addition of the long-effect additive( NAM ) in compound fertilizer is recommended.

这是提高作物产量和提高化肥利用率的有效手段之一，应大力推广在复混肥中添加这种长效添加剂（NAM ）。

The suggestions are presented of improving fertilizer efficiency, producing specialty and various new fertilizers.

特别指出要提高化肥利用率, 应多生产专用肥及各种新型肥料.