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提高资源利用效率是实现农业可持续发展目标的核心,本文以山东省和全国作物施肥现状研究为基础,探讨了肥料投入与养分资源效率及环境风险的关系。从区域、农户和 吨粮田不同层次上的分析表明,高投入下可以实现高效率,关键是提高综合管理的科学水平;经济作物生产中存在经济效益和资源效率分离的现象,生产者受经济利益驱动,大量投入肥料,由此会带来极低的资源效率和巨大的环境风险;在注意经济发达地区高化肥投入带来的环境问题的同时,还需要关注发展高经济价值作物带来的低资源效率和高环境风险。
Improving the efficiency of resource utilization is the core of achieving the goal of sustainable development of agriculture. Based on the research on crop fertilization in Shandong Province and the whole country, this paper discusses the relationship between fertilizer input and nutrient resource efficiency and environmental risk. The analysis on different levels of regions, peasant households and ton grain fields shows that high input can achieve high efficiency. The key is to raise the scientific level of integrated management. There is a separation of economic benefits and resource efficiency in economic crop production. Producers are affected by the economy Interest-driven and large-scale input of fertilizers, resulting in very low resource efficiency and huge environmental risks. While paying attention to the environmental problems brought by high-fertilization inputs in economically developed areas, attention should also be paid to the development of crops with high economic value Low resource efficiency and high environmental risk.