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从我国氮、磷、钾肥高消费、低利用率的现状,阐述了为什么缓控释肥被列为国家中长期科学技术发展计划的优先主题之一。介绍了哪些肥料是缓释、控释肥及当前世界生产、消费量。据估计,2005年世界缓释、控释肥料产量及消费量不超过100万t/a,若包括用于大田作物,具有一定缓释性能的包膜、包裹、包囊肥料,即广义的缓释、控释肥料世界生产、消费量已达120万t/a。展望了缓控释肥生产使用前景,在世界范围内,缓控释肥生产与消费的制约条件是产品价格;就国内而言,农民对肥料要求速效、速溶、速散是推广缓释、控释肥的主要思想障碍。降低生产成本,转变农民对缓释肥的认识,才能推动我国缓控释肥高速发展。
From the current situation of high consumption and low utilization rate of nitrogen, phosphorus and potash fertilizer in our country, this paper elaborates why slow release fertilizer is listed as one of the priority topics of the national medium and long-term science and technology development plan. Describe what fertilizers are slow release, controlled release fertilizer and the current world production, consumption. It is estimated that the world’s slow-release and controlled-release fertilizer production and consumption in 2005 will not exceed 1 million t / a. If it is included in the field crops, the coated, wrapped and encapsulated fertilizer with a certain slow-release property, Release, controlled release fertilizer world production, consumption has reached 1.2 million t / a. In the world, the restriction of production and consumption of controlled and controlled release fertilizers is the price of products. In China, the requirements of farmers for quick-acting, instantaneous and rapid dispersions of fertilizers are to promote the sustained release and control The main idea of fattening the obstacles. Reduce production costs and change peasants’ understanding of slow release of fertilizer in order to promote the rapid development of controlled release fertilizer in our country.