论文部分内容阅读
肥料是重要的农业生产资料。长期以来在化肥使用中,施肥量大、利用率低已成为一种普遍现象,不仅造成农业生产成本增加,而且污染环境影响农产品质量安全。因此,从现代农业发展出发,选用新型肥料,减少化肥施用量,提高肥料利用率,实现科学合理施肥,对提高农作物产量,确保农产品质量安全,改善农田土壤生态环境,促进农业节本增效具有十分重要的意义。据有关资料查询,目前玉米高产国家化肥施用量(有效成分)为90-200千克/公顷。世界玉米生产中有3种施肥类型:第一种是以施用化肥为主,例如美国、法国等欧美发达国家;第二种是无机肥与有机肥并重,例如
Fertilizer is an important means of agricultural production. For a long time, in the use of chemical fertilizers, large amount of fertilizer and low utilization rate have become a common phenomenon, which not only increases the agricultural production cost but also pollutes the environment and affects the quality and safety of agricultural products. Therefore, starting from the development of modern agriculture, the selection of new fertilizers to reduce the amount of chemical fertilizers and improve fertilizer utilization, to achieve scientific and rational fertilization, to improve crop yield, ensure the quality and safety of agricultural products, improve farmland soil ecological environment, Very important meaning. According to the information query, the current high yield of corn fertilizer country the amount of fertilizer (active ingredient) is 90-200 kg / ha. There are three types of fertilizers in the world corn production: the first is based on the application of fertilizers, such as developed countries in Europe and the United States such as the United States and France; the second is the equalization of inorganic fertilizers and organic fertilizers, for example