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近年来,农村中化肥用量日益增加,但有些地方氮肥施用不当,未达到应有的增产目的。单一的大量施用化肥,不利于植株体内的养分平衡,使作物生长受到限制。作物增产并不随肥料用量的增加而成比例的增加,所以养分合理的配合施用,提高肥料的相互效应,保证获得作物增产是当前生产上迫切需要解决的一项任务。为此我们进行氮磷复肥方面的工作,以提高氮磷肥效,从而获得高产。现将三年的氮磷复肥的试验研究总结如下。
In recent years, increasing use of chemical fertilizers in rural areas, but improper use of nitrogen in some places, did not meet the desired yield-generating purposes. A single large-scale application of fertilizers is not conducive to nutrient balance in plants, so that crop growth is limited. The increase of crop yield does not increase proportionally with the increase of fertilizer dosage. Therefore, with the rational application of nutrients, increasing the mutual effect of fertilizers and ensuring the increase of crop yield, it is a task urgently needed to be solved in current production. To this end, we work on nitrogen and phosphorus compounds in order to improve nitrogen and phosphorus fertilizer efficiency, so as to obtain high yield. Now three years of nitrogen and phosphorus fertilizer research is summarized as follows.