论文部分内容阅读
统计显示,1999年至2011年期间,我国化肥施用量增加了1437.4万吨,粮食产量增加了7617万吨。在粮食增产过程中,持续增长的化肥施用量发挥了很大的作用。但一个问题日益突出,我国不断增长的施用化肥越来越不能满足粮食作物对养分种类的需求,而且田地里施用越来越多的肥料对环境、土壤的负面影响在逐步加大。作为一项提高化肥利用率、节本增效的技术,测土配方施肥为促进粮食增产做出了积极贡献,但实际上推广应用配方肥中存在着不少的阻力,
Statistics show that between 1999 and 2011, China’s chemical fertilizer application increased by 14.374 million tons and grain output increased by 76.17 million tons. In the process of increasing grain production, the continuous increase of fertilizer application has played a significant role. However, one problem is becoming increasingly prominent. The increasing application of fertilizers in our country can not meet the demand of food crops for the types of nutrients more and more, and the negative impacts on the environment and soil of the application of more and more fertilizers in the fields are gradually increasing. As a technology to improve fertilizer use efficiency and cost efficiency, soil testing and fertilizer have made a positive contribution to the promotion of food production. However, there are many obstacles in promoting the application of formula fertilizer.