农业生产中肥料占的投资比重越来越大,生产成本越来越高。肥料施用不足、不合理或者过量并造成环境污染等现象日益突出。本文将合理施肥的关键技术 Fertilizer accounts for an increasing proportion of investment in agricultural production, and the production cost is getting higher and higher. Fertilizer application is not enough, unreasonable or excessive and cause environmental pollution and other phenomena have become increasingly prominent. This article will be the key to fertilization of the key technologies