磷是植物三要素之一。实践证明,磷肥是作物高产稳产不可缺少的条件.近年来,我省土壤普查的许多情况表明,大部分农田普遍缺磷,在一些上“纲”跨“江”的高产地区,虽然每年向土壤亩施百斤左右的磷肥(即过磷酸钙肥料),但土壤仍然呈现缺磷,直接影响农作物产量的提高。 Phosphorus is one of the three elements of plants. Practice has proved that, phosphate fertilizer is an indispensable condition for high and stable crop production.In recent years, many cases of soil survey in our province show that most of the farmland is generally deficient in phosphorus. In some high-yielding areas where the “Gang” crosses the “river” About 100 mu of phosphate fertilizer (ie, superphosphate fertilizer), but the soil is still lack of phosphorus, a direct impact on crop yields.