| 有机肥钾与化肥钾配施对叶类蔬菜的营养效应研究 |
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| 引用本文： | 范晓伟,谷守宽,陈益,杨东,樊建军,王正银.有机肥钾与化肥钾配施对叶类蔬菜的营养效应研究[J].农学学报,2019,9(3):26-31. |
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| 作者姓名： | 范晓伟 谷守宽 陈益 杨东 樊建军 王正银 |
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| 作者单位： | 1.重庆市农业委员会 重庆;2.西南大学资源环境学院 重庆;3.重庆市潼南区农业委员会 |
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| 基金项目： | 国家公益性行业（农业）科研专项课题“西南地区钾肥高效利用与替代技术研究”(201203013-5)。 |
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| 摘 要： | 在重庆地区种植蔬菜多年的基地进行田间试验,探讨有机肥钾与化肥钾以不同比例配合施用对叶类蔬菜产量、品质、钾素养分吸收和利用效率的影响。结果表明,有机肥钾与化肥钾配合较无钾肥处理极显著提高两个试验点莴笋和白菜产量,增幅为11.6%～17.4%和10.9%～15.4%,均以高量(50%)有机肥钾处理(MH+KL)增产作用最大；有机肥钾与化肥钾配合较常规施钾提高莴笋和白菜产量,但增产作用不显著。有机肥钾与化肥钾配合较不施钾处理显著增加莴笋叶维生素C含量、降低氨基酸和可溶性糖含量,白菜维生素C、氨基酸和可溶性糖含量影响不大,莴笋叶、茎和白菜硝酸盐含量分别降低4.8%～5.4%、4.9%～11.1%和15.5%～30.0%,以MH+KL处理作用最大。有机肥钾与化肥钾配合使莴笋和白菜钾素吸收量显著增加,均以MH+KL处理即有机肥50%配合化肥钾50%莴笋钾素利用效率最高。综合叶类蔬菜产量、品质和钾素利用效率,以MH+KL处的效应最好。
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| 关 键 词： | 降解地膜 降解地膜 文献计量 CNKI 分析 |
| 收稿时间： | 2018-01-19 |
Organic Fertilizer Potassium and Chemical Potash Fertilizer Combination Affects Nutrition of Leafy Vegetables |
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| Abstract: | Field experiments are carried out to study the effects of organic fertilizer potassium and chemical fertilizer potassium combination on the yield, quality and potassium nutrient utilization efficiencies of leafy vegetables in a vegetable planting base of Chongqing. The results indicated that yields of lettuce and cabbage increased significantly (11.6%- 17.4% and 10.9%- 15.4% , respectively) under the combination treatment compared with that of no potassium treatment, in the two experiments, the highest yield was achieved under the MH +KL treatment. The yield of lettuce and cabbage under the combination treatment was higher than that of conventional potassium treatment, but the increase was not significant. The combination treatment could increase Vc content, decrease amino acid and soluble sugar content of lettuce, but it had little effect on
cabbage. Nitrate contents in lettuce leaves, stems and cabbage were decreased by 4.8%-5.4%, 4.9%-11.1% and 15.5%-30.0%, respectively, and the MH +KL treatment had the best result. The combination treatment significantly increased potassium uptake and potassium utilization efficiency of lettuce and cabbage, and those under the MH+KL treatment were the highest, and the treatment was the optimal for leafy vegetable production. |
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