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我区大部分土壤多属缺磷土壤(五氧化二磷含量在0.1%以下),增施磷肥有明显效果。我区磷矿资源丰富推广使用磷矿粉肥是广辟肥源的途径之一。生产实践证明:在中性～微碱性土壤上直接施用磷矿粉,肥效甚微。而与有机肥料一起堆沤肥效可以显著提高。为了找出有机肥料与磷矿粉堆沤时适宜的用量比例和转化条件,我们设置了猪、牛、马粪、高梁秆、光叶苕子等分别与磷矿粉堆沤试验。同时在田间鉴定其应用效果。现将试验方法和效果整理如下:
Most of the soil in our area belongs to phosphorus-deficient soil (phosphorus pentoxide content below 0.1%), and the application of phosphate fertilizer has obvious effect. The rich use of phosphate rock resources in our district to promote the use of phosphate fertilizer is one of the ways to broaden sources of fertilizer. Production practice has proved that: in the neutral ~ slightly alkaline soil phosphate rock directly applied, little effect. And with organic fertilizer heap fertilizer efficiency can be significantly improved. In order to find out the appropriate dosage ratio and conversion conditions of organic fertilizer and phosphate rock reactor, we set up pig, cattle, horse manure, sorghum stalk, light leaf prickly heat, respectively, with the phosphate rock reactor. At the same time in the field to identify its application effect. Now test methods and effects are organized as follows: