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磷矿粉是一种重要磷肥资源,确定磷矿粉的经济有效使用措施是农业科研工作中的重要任务之一。关于磷矿粉肥效问题,过去的一些试验,一般从作物产量的反应来说明,而对不同的作物,在不同土壤条件下吸收利用的磷矿粉肥状况及其与增产的关系阐述较少。当前在推广应用磷矿粉肥中,有些单位强调将磷矿粉与有机肥混合堆沤来促使磷素转化,提高磷矿粉肥的有效性,但是这种措施没有达到预期的效果。为此,本试验是应
Phosphate rock is an important phosphate fertilizer resource. Determining the economical and effective use of phosphate rock powder is one of the important tasks in agricultural research. On the issue of fertilizer efficiency of phosphate rock, some experiments in the past generally show the response of crop yield. However, the relationship between phosphate fertilizer and fertilizer utilization under different soil conditions and its yield increase is relatively poor. Currently in the promotion and application of phosphate rock fertilizer, some units emphasize the mixing of phosphate rock and organic fertilizer pile up to promote the conversion of phosphorus to improve the effectiveness of phosphate rock fertilizer, but this measure did not achieve the desired results. For this reason, this test should be