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首页> 外文期刊>Journal of environmental science and health >Influence of crop residues on trifluralin mineralization in a silty clay loam soil
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Influence of crop residues on trifluralin mineralization in a silty clay loam soil

机译：作物残渣对粉质黏土壤土中氟乐灵矿化的影响

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Trifluralin is typically applied onto crop residues (trash, stubble) at the soil surface, or onto the bare soil surface after the incorporation of crop residues into the soil. The objective of this study was to quantify the effect of the type and amount of crop residues in soil on trifluralin mineralization in a Wellwood silty clay loam soil. Leaves and stubble of Potato (Solanum tuberosum) (P); Canola (Brassica napus) (C), Wheat (Triticum aestivum) (W), Oats (Avena sativa), (O), and Alfalfa (Medicago sativa) (A) were added to soil microcosms at rates of 2%, 4%, 8% and 16% of the total soil weight (25 g). The type and amount of crop residues in soil had little influence on the trifluralin first-order mineralization rate constant, which ranged from 3.57E-03 day~(-1) in soil with 16% A to 2.89E-02 day~(-1) in soil with 8% W. The cumulative trifluralin mineralization at 113 days ranged from 1.15% in soil with 16% P to 3.21% in soil with 4% C, again demonstrating that the observed differences across the treatments are not of agronomic or environmental importance.
机译：三氟拉林通常施用到土壤表面的农作物残留物（垃圾，残茬）上，或将农作物残留物掺入土壤后施用到裸露的土壤表面上。这项研究的目的是量化土壤中农作物残渣的类型和数量对Wellwood粉质粘土壤土中三氟拉林矿化的影响。马铃薯（Solanum tuberosum）的叶和茬（P）；将油菜籽（Brassica napus）（C），小麦（Triticum aestivum）（W），燕麦（Avena sativa），（O）和苜蓿（Medicago sativa）（A）以2％，4％的比例添加到土壤微观世界中，总土壤重量（25 g）的8％和16％。土壤中农作物残渣的种类和数量对三氟拉林一级矿化速率常数的影响不大，范围从16％A的土壤中的3.57E-03天〜（-1）到2.89E-02天〜（- 1）在8％W的土壤中。在113天时累积的氟乐灵的矿化程度从含磷16％的土壤的1.15％到含碳4％的土壤的3.21％不等，这再次表明，观察到的不同处理之间的差异不具有农艺性或对环境的重要性。

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