期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

1991

01

17-22

10.13331/j.cnki.jhau.1991.01.003

本校为第一机构

尿素、碳铵和氯铵对蔬菜产量和品质的影响的田间试验结果表明,大白菜在等氮量情况下,对尿素,碳铵和氯铵的肥效无显著差异,盆栽试验结果也表明,尿素与碳铵肥效相当,唯氯铵肥效因蔬菜种类而异,氯铵有明显降低蔬菜硝酸盐含量的效果,氯铵与尿素相比,约降低硝酸盐50%,在中等氮素水平下,尿素、碳铵和氯铵处理,蔬菜硝酸盐平均含量分别为659,633和440 ppm,除氯铵处理在允许范围内外,尿素和碳铵处理均超过标准。

In field experiments of urea〔CO(NH_2)_2〕,ammonium carbonate(NH_4HCO_3),and ammonium chloride (NH_4C_1)on yield and quality of ve-getables Chinese Cabbage(Brassica penkinensis Rupr.) showed no significantdifference at the same N level with the tested fertilizers.Pot experiments foundthe effect of CO(NH_2)_2 similar to that of NH_4HCO_3,but the effect of NH_4CIvaried with vegetable varieties.Analysis of NO_3~-in vegetables (fresh leaves)showed that,compared with urea,NH_4CI reduces 50%of NO_3~-in the plant bo-dy.At middle N level the average NO...