一、对土化肥的认识问题1.有机肥料和无机肥料。肥料是农作物的粮食。农作物的生长和生活,除了需要适宜的阳光、空气和温度之外,还需要充足的水分和肥料。一切为农作物生长所需要并易被共吸收的物质都可叫做肥料(对土壤起改良作用的某些物质可算作间接肥料)。农作物生长几乎需要自然界的一切元素,但最主 First, the understanding of soil fertilizers 1. Organic fertilizers and inorganic fertilizers. Fertilizer is the grain of crops. Crop growth and life, in addition to the proper sunshine, air and temperature, require adequate moisture and fertilizers. All that is required for crop growth and readily co-absorbed can be called fertilizer (something that can be used as an indirect fertilizer for soil amendments). Crop growth requires almost all elements of nature, but the most