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湖北省磷矿资源丰富,矿点多,储量大,但矿床成因和矿石性质比较复杂。为了查明不同磷矿出产的磷矿粉肥的性质和肥效以及影响肥效的因素,有利因矿制宜,合理利用,多、快、好、省地满足农业生产大上、快上对磷肥的需要,我们收集了十二个磷矿的40多个矿石样品,进行了:①磷矿粉肥的当季肥效;②磷矿粉肥的持续肥效;③
Hubei Province is rich in phosphate rock resources, with many ore reserves and large reserves, but the causes of the ore deposits and the nature of ore are rather complicated. In order to ascertain the nature and fertilizer efficiency of phosphate rock fertilizer produced by different phosphate rock and the factors that affect fertilizer efficiency, it is advantageous to meet the requirements of mine utilization, rational utilization, more, faster, better and more economical to meet the agricultural production. We need to collect more than 40 ore samples from 12 phosphate rock and carry out: (1) seasonal fertilizer effect of phosphate fertilizer; (2) sustained fertilizer effect of phosphate fertilizer; (3)