对含氯化肥农田应用效果的评价
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EVALUATION ON EFFICIENCY OF CHORIDE-BEARING FERTILIZER APPLIED IN FARMLAND
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    摘要:

    1987年至1992年的含氯化肥长期定位试验表明,在蒸发、降雨量接近的江苏苏南地区,氯化铵的增产效果及其氮素利用率均好于尿素,施用氯化铵的稻、麦及油菜种子的粗蛋白和氨基酸含量也较高;增加氯化铵施用次数可显着提高氮素利用率,并改善作物品质;氯化铵用量增加,土壤氯的积累也相应增加,同时随种植时间延续,也未发现氯离子在土壤耕层及1m土层积累。但必须注意连续施用含氯化肥有使土壤酸化的趋势。

    Abstract:

    A long-term fixed position experiment was carried out from 1987 to 1992 to study the efficiency of chloride-bearing fertilizer applied in farmland. The results show(1)in south Jiangsu where the evaporation and rainfall are close, to apply ammonium chloride was better than to apply urea in increasing crop yields, utilization rate of nitrogen, and the crude protein and amino acid contents of rice, wheat and rape; (2) increaseing times of applying ammonium chloride could nota- bly raise the utilization rate of nitrogen and improve the quality of crop seeds. (3) the accumulation of Cl- in the soil inseased with the amount of ammonium chloride applied, but the accumulation and leaching of Cl- in the soil went to equlibrium as the test continued and no accumulation of Cl- in the plough and one-meter soil layer was discovered;and (4) the continuous application of chloride-bearing fertilizer could quicken soil acidfication.

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吴金桂,娄德仁,宁运旺,蒋永忠.对含氯化肥农田应用效果的评价[J].土壤学报,1995,32(3):321-326. Wu Jingui, Lou Deren, Ning Yunwang, Jiang Yongzhong. EVALUATION ON EFFICIENCY OF CHORIDE-BEARING FERTILIZER APPLIED IN FARMLAND[J]. Acta Pedologica Sinica,1995,32(3):321-326.

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  • 在线发布日期: 2013-02-25
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