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关于磷矿粉的肥效问题,不少单位曾作过研究,但只是说明了土壤性质与作物产量的关系,没有进一步阐明作物在不同土壤条件下对磷矿粉的吸收性能。有些报导虽强调了磷矿粉与有机肥料堆沤或混施的好处,但另一些试验结果却正相反。由于对磷矿粉肥料的评价存在着矛盾,因而影响了磷矿粉的推广应用,尤其是最近正在发展的腐植酸磷肥,更是当前生产实践中提出的新课题。
On the fertilizer efficiency of phosphate rock, many units have been studied, but only shows the relationship between soil properties and crop yield, did not further clarify the crops in different soil conditions for phosphate rock absorption. Although some reports emphasize the benefits of rock phosphate or organic fertilizers, other tests have the opposite effect. Due to the contradiction between the evaluation of phosphate rock fertilizer and fertilizers, the popularization and application of phosphate rock powder are affected. Especially, the recent development of humic acid phosphate fertilizer is a new issue raised in current production practice.