普通过磷酸钙的合理施用技术玉溪地区农业学校６５３１００钟建明普通过磷酸钙，简称普钙，它适用于大多数土壤，因含大量石膏和一些游离酸，在酸性土上尤好，以做种肥、基肥使用为主，也可做追肥和根外迫肥使用，为提高普钙的利用率，施用时减少土壤对它的固定，增加与根... The general application of calcium superphosphate technology Yuxi Agricultural School 653100 Zhong Jianming ordinary calcium phosphate, referred to as the general calcium, which applies to most of the soil, because of a large number of gypsum and some free acid, especially in acid soil to do seed Fertilizer, based on the use of fertilizer, but also can be used top-dressing and fertilizer outside the use of fertilizer, in order to improve the utilization of calcium, reducing soil when applied to its fixed, increase and root ...