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磷肥是作物生长所需的一个主要营养元素,合理施用磷肥是作物增产的措施之一。目前,全市磷肥用量达14～15万吨。近年来,有些地区熟熟施、年年用,降低了磷肥的效应,而另一些地区,原来磷肥效应就不高,加之长期不施用,造成土壤磷素供应不足,产量提不高,因此合理施用磷肥,是郊区生产中迫切需要解决的一个实际问题。自1980至1984年,我们在郊区十个县和农场的四种土
Phosphate fertilizer is one of the main nutrition elements needed for crop growth. Proper application of phosphate fertilizer is one of the measures to increase crop yield. At present, the city’s phosphate fertilizer consumption of 14 to 150,000 tons. In recent years, some areas mature cooked, year after year, reducing the effect of phosphate fertilizer, while in other areas, the original phosphate fertilizer effect is not high, combined with long-term non-application, resulting in insufficient supply of soil phosphorus, yield is not high, it is reasonable The application of phosphate fertilizer is an urgent practical problem that needs to be solved in suburban production. Since 1980 to 1984, we have four kinds of soil in ten counties and farms in the suburbs