有机肥与化学肥料配合施用明显提高磷肥的利用率。

Mixing applying chemical fertilizer and organic fertilizer could obviously increase utilization efficiency of P fertilizer.

我们能从这些废液中提炼出有用的化学肥料。

Useful chemical fertilizer can we make from the waste liquid.

但化学肥料尤其是氮肥施用量过多，极易导致产品质量下降、环境污染等问题。

But the use of much fertilizer results in decreasing of quality and a series of serious entironment problems.

经试验发现应用一种化学肥料硫酸铵可以显著提高乌拉嘎金矿石的浮选回收率。

A chemical fertilizer called ammonium sulfate is confirmed by tests to improve flotation recovery of gold from Wu-La-Ga gold ores.

环保主义者攻击他，说他的新品种使用了太多的水和昂贵的化学肥料；人们注意到他与杜邦公司的关系。

Greens attacked him, saying his new varieties used too much water and costly chemical fertilizer; his link with DuPont was noted.