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著提高氮素利用率，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。
A long-term fixed
position experiment was carried out from 1987 to 1992 tostudy the efficiency of
chloride-bearing fertilizer applied in farmland.The resultsshow(1) in south Jiangsu where the
evaporation and rainfall are close,to applyammonium 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 increased with the amount of ammonium chlo-ride applied, but the
accumulation and leaching of Cl￣-in the soil went to equli-brium as the test continued and no
accumulation of Cl￣-in the plough and one-metersoil layer was discovered;and(4)the
continuous application of chloride-bearingfertilizer could quicken soil acidfication.
出处
《土壤学报》
CAS
CSCD
北大核心
1995年第3期321-326,共6页
Acta Pedologica Sinica
关键词
氯肥
定位试验
氯化铵
氯化钾
化肥
Chloride-bearing fertilizer.Fixed position experiment
