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气候对肥效的影响可从以下两个完全不同的方面加以考察。 (1)只有在适宜的气候条件下才能获得最高产量,而且为了利用其全部可能利用的潜力,还必须施用相当大量的肥料。 (2)在不利的气候条件下大量施肥可在一定程度上缓和低温、阴雨等的不良影响。在这方面钾的效果特别显著。在不利的气候条件下虽然总的产量水平是低的,但是相对
The effects of climate on fertilizer efficiency can be examined in two very different ways. (1) The highest yields are obtained only under suitable climatic conditions and, in order to harness the full potential of their potential utilization, considerable amounts of fertilizers must also be applied. (2) A large amount of fertilization under unfavorable weather conditions can alleviate the adverse effects of low temperature, rainy weather and so on to a certain extent. The effect of potassium is particularly remarkable in this regard. Although the overall level of production is low under unfavorable climatic conditions, it is relative