承德市春玉米化肥農(nóng)藥減施技術(shù)模式應(yīng)用效果
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中圖分類號：S481 文獻(xiàn)標(biāo)識碼：A 文章編號：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
化肥和農(nóng)藥在促進(jìn)作物健康生長、提高作物產(chǎn)量和保障糧食安全等方面發(fā)揮重要作用，據(jù)世界糧農(nóng)組織統(tǒng)計數(shù)據(jù)顯示，我國耕地面積約占世界總耕地面積的 7 % ，而農(nóng)藥使用量占世界總使用量的4 0 % [1]。（剩余8579字）