2-氯-5-氟-硝基苯对硝化抑制作用及玉米增产效应的研究

Inhibition of 2-Cl-5-F-nitrobenzene on Nitrification and Corn Yield

通过对实验室培养试验和田间试验结果综合分析 ,表明与硝化抑制剂 ,2 ,5 二氯硝基苯有相似结构的 2 氯 5 氟 硝基苯也具有硝化抑制作用 ,但在不同的土壤上 ,其效果存在明显差异 ,在土壤肥力高的潮土上的效果显著 ,抑制剂的施用与否可使用土壤中NO3 N的含量相差 2— 3倍。玉米以碳铵作N源 ,减少正常N肥用量 2 0 % ,施用 2 氯 5 氟 硝基苯 ,玉米产量较对照增产 12 6% 。

The results of laboratory and field test show that 2 Cl 5 F nitrobenzene is similar with another nitrification inhibitor, 2,5 bi Chloronitrobenzene. The effect on fertility semihydrogenic soil is significant. The content of NO 3 N in the soil treated with the inhibitor is 2 3 times lower than that in the soil the inhibitor. When NH 4HCO 3 was used as N fertilizer, the corn yield in treated field used only 80% of N fertilizer was 12 6% higher than in CK.