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磷石膏是氮、磷高效复合肥生产中的副产品,其主要化学成份为氧化钙、五氧化二磷、三氧化硫,镁和锌等微量元素,我们在平菇生产上用磷石膏代替石膏粉和部分磷肥进行了试验,现将结果简报如下:(一)供试材料磷石膏由沿海地区农科所提供.平菇菌株为苏射一号.培养料配方:(1)常规配方(对照)为棉籽壳500公斤、磷肥10公斤、石膏粉10公斤、石灰粉5公斤、多菌灵1公斤.(2)试验配方为棉籽壳500公斤、磷石膏10公斤、石灰粉7.5公斤、磷肥5公斤、多菌灵1公斤.
Phosphogypsum is a byproduct of the production of nitrogen and phosphorus efficient compound fertilizer. Its main chemical components are trace elements such as calcium oxide, phosphorus pentoxide, sulfur trioxide, magnesium and zinc. We use phosphogypsum instead of gypsum powder And some of the phosphate fertilizer were tested, the results of briefings are as follows: (a) the test material phosphogypsum provided by the Coastal Area Agricultural Sciences .Strain mushroom strain Su shot one. 500 kg of cotton seed hulls, 10 kg of phosphate fertilizer, 10 kg of gypsum powder, 5 kg of lime powder and 1 kg of carbendazim. (2) The test formula is 500 kg of cotton seed hulls, 10 kg of phosphogypsum, 7.5 kg of lime powder and 5 kg of phosphate fertilizer , Carbendazim 1 kg.