关键词: 化肥减量, 施肥强度, 新阶段, 粮食安全, 绿色农业

Abstract:

During the “14th Five-Year Plan” period, the state has put forward higher requirements for the reduction of chemical fertilizer: By 2025, the application amount of agricultural chemical fertilizer in the country has achieved a steady decline, and the fertilizer utilization rate of the three major food crops has reached 43%. At present, Wenzhou has achieved a continuous decrease in the amount of agricultural fertilizer, an increase in the proportion of formula fertilizer, a gradual optimization of fertilizer structure, a fertilizer intensity lower than the average level in Zhejiang Province, and positive results in fertilizer reduction through technical approaches such as soil testing and formula fertilization, fertilizer reduction and efficiency increase and fertilizer quota. In order to carry out the fertilizer reduction work in Wenzhou in the new stage, this paper analyzes the problems existing in the process of fertilizer reduction, such as the bottleneck of technology landing, the need to further improve the policy support, and the weak promotion system of grassroots agricultural technicians. Based on the experience of fertilizer reduction in developed countries, the feasibility of continuously promoting fertilizer reduction in Wenzhou in the new stage was put forward, and the development direction of fertilizer reduction was pointed out by reducing fertilizer application intensity. In combination with the actual situation of Wenzhou, countermeasures and suggestions for fertilizer reduction in the next stage were further proposed.

Key words: fertilizer reduction, fertilizer intensity, new stage, food security, green agriculture