有些农民对化肥的性能不了解,胡乱混施化肥,使一些农作物干枯、烧死、减产。现告诉农民朋友哪些化肥不能混施,以便在生产中合理使用。首先是过磷酸钙不能与草木灰、石灰氮、石灰等碱性肥料混用。因过磷酸钙含有游离酸,呈酸性反应,而上述碱性肥料含钙质较多,若二者混合施用,会引起酸碱反应,降低肥效,又会使钙固定磷素,导致其两败俱伤。磷矿粉、骨粉等难溶性磷肥,也不能与草木灰、石灰氮、石灰等碱性肥料混用,否则会中 Some peasants do not understand the performance of chemical fertilizers, mix fertilizers casually, and make some crops dry, burn, and cut production. Now tell farmers friends which fertilizers can not be mixed, so that the rational use of production. The first is not superphosphate with ash, lime nitrogen, lime and other alkaline fertilizer mix. Because of superphosphate contains free acid, acidic reaction, and the alkaline fertilizer containing more calcium, if the two mixed application, can cause acid-base reaction, reduce fertilizer, it will make calcium fixation of phosphorus, leading to its lose-lose. Phosphate rock, bone meal and other insoluble phosphate, nor with ash, lime nitrogen, lime and other alkaline fertilizer mix, otherwise will