承德市春玉米化肥农药减施技术模式应用效果

打开文本图片集

中图分类号：S481 文献标识码：A 文章编号：0488-5368（2025）04-0095-06

Abstract： To explore the efectiveness of reducing fertilizer and pesticide use in corn fields in Chengde and to achieve the dual objectives of minimizing inputs while enhancing eficiency，a field experiment was conducted to assessthe "one substitution，two reductions"（"one-for-two reduction"）technology model，using the conventional production system as a control.Theresults demonstrated that，compared to the conventional model，the " one-for -two reduction" approach reduced nitrogen fertilizer application by 2.2 kg per 667 m，pesticide use by 70 mL per ，and total production costs by 130.42 yuan per . This model improved weed control efficacy by 2 . 4 7 % to 1 0 . 9 0 % ，increased yield by 9 . 1 7 % ，enhanced net income by 323.78 yuan per ，and boosted fertilizer utilization efficiency by 3 6 . 7 4 % .These findings indicate that the "one-for-two reduction" technology is an efective strategy for reducing fertilizer and pesticide use while maintaining or improving productivity.Moreover，it presents a viable alternative to traditional practices for large-scale application in corn production.

Keywords：Corn；Fertilizer；Pesticide；Fertilizer and pesticide reduction technology

化肥和农药在促进作物健康生长、提高作物产量和保障粮食安全等方面发挥重要作用，据世界粮农组织统计数据显示，我国耕地面积约占世界总耕地面积的 7 % ，而农药使用量占世界总使用量的4 0 % [1]。（剩余8579字）