一种只需施一次肥料 ,就能满足水稻全生育期生长需要的水稻专用控释混合肥最近由浙江省农科院土肥所科技人员研制成功并开始走向产业化。科研人员首先为氮肥包上一种缓释材料 ,研制出成本低、易加工、适合于产业化开发的控释氮肥。在此基础上 ,他们又根据土壤供肥规律和水稻生? A kind of controlled release fertilizer for rice, which can meet the growth needs of rice during its whole growth period, has been successfully developed and started to be industrialized by scientific and technical personnel of Soil and Fertilizer Institute of Zhejiang Academy of Agricultural Sciences. Researchers first package a sustained-release material for nitrogen fertilizer, developed a controlled-release nitrogen fertilizer with low cost, easy processing and suitable for industrial development. On this basis, they also according to the rules of soil fertilization and rice production?