由浙江省定海县生产资料公司、浙江农业大学土化系以及省、地农资公司等单位研究的甘薯施用含氯化肥这一课题,于去年七月在定海通过省级评议鉴定。一致认为甘薯可以使用一定量的含氯化肥,即不影响品质,又能增产,具有明显的经济效益和社会效益,为甘薯施用含氯化肥(氯化钾、氯化铵)提供了科学的依据. 甘薯属“喜钾”作物,施用钾肥能增产,这多年来已被广大农业科技工作者和农民所认识,但成本较低,货源占钾肥总量百分之九十五以上的氯化钾,因长期以来甘薯 The issue of applying chlorinated fertilizers to sweet potatoes studied by Zhejiang Dinghai County Production Material Company, Zhejiang Agricultural University’s Department of Geochemistry, and provincial and local agro-equipment companies was approved by the provincial appraisal in Dinghai in July last year. It is agreed that sweet potatoes can use a certain amount of chlorinated fertilizers, that is, they do not affect the quality, but also can increase production, have obvious economic and social benefits, and provide a scientific basis for the application of chlorinated fertilizers (potassium chloride and ammonium chloride) to sweet potatoes. Sweetpotato is a “Hi Potassium” crop. The application of potash fertilizer can increase production. This has been recognized by many agricultural science and technology workers and farmers for many years, but the cost is low, and the source of potassium chloride accounts for more than 95% of the total amount of potash fertilizer. Because of the long sweet potato