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Position: Home > Articles > Effects of Humic Acid Amendments on Nitrate Content and Yield of Vegetables in Greenhouse Humic Acid 2006 (5) 25-27

腐植酸改良剂对棚菜硝酸盐含量及产量的影响

作  者：
于志民;吕品;王立民
单  位：
黑龙江省科学院自然资源研究所
关键词：
腐植酸;硝酸盐;蔬菜产量
摘  要：
对芹菜、萝卜两种蔬菜进行田间改良试验。结果表明,腐植酸改良剂-灌溉型和腐植酸改良剂-喷施型对降低芹菜、萝卜中硝酸盐含量均达到极显著水平,NPK化肥对降低硝酸盐作用显著,改良效果腐植酸改良剂-灌溉型>腐植酸改良剂-喷施型>NPK化肥;供试蔬菜内硝酸盐含量与硝酸还原酶(NR)的活性呈负相关,腐植酸改良剂-灌溉型最强,其余依次减弱;增产效果明显,腐植酸改良剂-灌溉型>NPK化肥>腐植酸改良剂-喷施型>不施肥。芹菜腐植酸改良剂-灌溉型、腐植酸改良剂-喷施型、NPK化肥处理与不施肥处理均达到极显著差异水平;萝卜腐植酸改良剂-灌溉型处理较NPK化肥、腐植酸改良剂-喷施型、不施肥处理分别增产7.92%、18.94%、28.08%,各处理之间均达到差异显著水平。
译  名：
Effects of Humic Acid Amendments on Nitrate Content and Yield of Vegetables in Greenhouse
作  者：
Yu Zhimin, Lv Pin, Wang Limin(Institute of Natural Resource, Heilongjiang Academy of Sciences, Harbin, 150040)
关键词：
potassium humate cultivated Schisnadra chinensis; potassium content fruit quality
摘  要：
Effects of the two humic acid amendments on nitrate content and yield of vegetables in greenhouse were studied by means of fi eld experiment. The results indicated that the application of humic acid amendments, including irrigating type and spraying type, both reduced the nitrate contents of celery and radish signifi cantly, and the effect of irrigating type amendment was the best compared with the treatments of irrigating type and NPK. The negative correla-tion was observed between nitrate content and nitrate reductase activity, which in irrigating type treatment was most signifi cant. The radish yield in treatment with irrigating type amendment was increased by 7.92%, 18.94%, 28.08% than those in treatments with NPK, spraying type amendment, and the control no applying fertilizers, respectively.

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