According to the agricultural theory in this paper, a kind of novel fertilizer sowing mechanism with the stratification and heft had been designed, and it acquired good effect in productive practice.

文章依据农学原理设计了一种新式的分层分量施肥装置并在生产实践中取得了良好效果。

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Practice shows that a new-type fertilizer which is made out of aluminiferous phosphate rocks is characteristic not only of considerable fertilizer effect but of higher anti-drought ability.

实践证明，用磷铝质岩加工制成的新肥，不仅肥效显著，更有巨大的抗旱能力。

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Practice shows that in the reconstruction and extension of medium and small chemical fertilizer plants the selection of the built in turbine circulator plays a marked role in stable and high output.

实践表明，在中小氨厂的改扩建过程中，选用内置式透平循环压缩机对稳产、高产将有明显的作用。

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