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农用微量化学肥料“硝酸稀土”(简称稀土)。近几年据各地试验,可以调整或改良土壤的物理化学性质,改善土壤条件‘有利农作物吸收氮磷钾等有效成份,提供作物不可缺少不可代替的元素。已有许多地区开始大面积试验利用,增产效果明显,很受欢迎。
Agricultural trace chemical fertilizer “rare earth nitrate” (referred to as rare earth). In recent years, experiments have been conducted in various places to adjust or improve the physico-chemical properties of the soil and improve the soil conditions. It is beneficial for crops to absorb the active ingredients such as nitrogen, phosphorus and potassium, and provide indispensable and irreplaceable elements for crops. Many areas have already started large-scale trial and utilization, the effect of increasing production is obvious and very popular.