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磷是农作物所需肥料的三要素之一。据测定,我县土壤中普遍含磷量可供亩产千斤小麦十多年的需要。但是90％多都不能被作物所吸收,处于“无效状态”。所以,在实际生产过程中,每年都要施用大量的磷素肥料来满足小麦的需要。为了充分挖掘土壤磷素的潜在肥力,促进小麦生产,我们连续四年进行了磷细菌拌种试验、示范、推广工作。今年已推广了5万亩,取得了比较好的增产效果。
Phosphorus is one of the three elements of fertilizers needed for crops. It is determined that the general soil phosphorus in our county for acres of wheat yield per mu for more than 10 years of needs. But more than 90% can not be absorbed by the crop, in the “invalid state.” Therefore, in the actual production process, every year to apply a large number of phosphorus fertilizer to meet the needs of wheat. In order to fully tap the potential fertility of soil phosphorus, and promote wheat production, we conducted four consecutive years of phosphorus bacteria dressing test, demonstration and promotion work. This year has been the promotion of 5 million mu, has made a good yield increase.