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一些读者来信,询问尿素能否做种肥,我们特请中国农业科学院土肥所金维续同志简答如下。种肥,一般认为是同种子拌和在一起,然后同种子一道播在地里的一种施肥方法。但这种方法严重影响种子发芽及出苗,所以一般不提倡这样做。这是由于尿素与种子或土壤接触后,在尿酶的作用下,迅速分解为氨,在种子周围容易形成碱性较强的氨气,熏蒸着种子,同时尿素产
Some readers wrote a letter asking if urea could be used as a fertilizer or not, and we asked Jane Jin, the chief of the Institute of Soil and Fertilizer, Chinese Academy of Agricultural Sciences, to briefly explain the following. The kind of fertilizer, generally considered the same seed mixed together, and then sown in the ground with the same kind of fertilizer. However, this method seriously affects seed germination and emergence, it is generally not recommended to do so. This is due to urea and seed or soil contact, under the action of urease, quickly decomposed into ammonia, easily formed in the seed around the strong alkaline ammonia, fumigated seeds, while urea production