论文部分内容阅读
氨化过石是由过磷酸钙与碳酸氢铵混合制成的一种氮磷混合肥料。在我省一些地区作为种肥施用,对作物的苗期生长和后期产量多具有良好作用。但是,由于产地不同,在质量上有很大差别。配比不当,不仅有效养分含量降低,还会影响种子发芽,造成缺苗断条。为了充分发挥氨化过石的肥效,针对省内不同产地的过磷酸钙研究氨化过石中适宜的氮、磷配比。现将试验结果分述于下:一、试验方法(一)室内试验部分:采用三个不同产地的过磷酸钙,基本性质见表1。
Ammonia over the stone by the superphosphate mixed with ammonium bicarbonate made of a mixture of nitrogen and phosphorus fertilizer. In some areas in our province as a kind of fertilizer application, the crop seedling growth and late yield have a good effect. However, due to different origins, there is a big difference in quality. Improper ratio, not only reduce the effective nutrient content, but also affect the germination of seeds, resulting in lack of broken seedlings. In order to give full play to the effectiveness of ammoniated stone, for the different origin of the province of superphosphate research ammoniated over stone suitable nitrogen and phosphorus ratio. Now the test results are described in the following: First, the test method (a) indoor test section: the use of three different origin of superphosphate, the basic properties in Table 1.