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由四川大学化学系研制出用“固体解磷剂”将磷矿粉中的磷直接活化为有效态的磷,即“干法”制磷肥。并配以氮肥制成(含氮20％,五氧化二磷10％)氮磷复肥。这种磷肥的生产工艺与传统工艺相比,具有操作简单,流程短,投资省,耗能低,无三废污染,对高、中、低品位磷矿都适用。为检验其肥效,对该肥料作出正确评价,于1988—1990年在小麦上进行了试验,现将结果报告于后。一、材料和方法田间试验重复3次,随机排列,小区面积0.02—0.03亩,大区示范面积0.03—1.5亩。盆栽试验用米
Department of Chemistry, Sichuan University, developed by the “solid solution Phosphate” phosphate rock phosphate directly activated into an effective state of phosphorus, that is, “dry” system of phosphate fertilizer. And with nitrogen made (20% nitrogen, phosphorus pentoxide 10%) nitrogen and phosphorus compound fertilizer. Compared with the traditional process, the production process of the phosphate fertilizer has the advantages of simple operation, short process, low investment, low energy consumption and no tri-waste pollution, and is suitable for high, medium and low grade phosphate rock. To test its efficiency, the fertilizer was correctly evaluated and tested on wheat in 1988-1990, the results of which are reported later. First, materials and methods Field trials repeated 3 times randomly arranged area of 0.02-0.03 acres of large demonstration area of 0.03-1.5 acres. Pot experiment with rice