摘要
为了合理使用腐植酸液体叶面肥,以提高大白菜产量,采用随机区组法,研究了不同浓度腐植酸液体叶面肥对大白菜产量和品质的影响。结果表明:腐植酸液体叶面肥最佳喷施浓度为600倍液,此时大白菜产量较对照显著增加,达到95 640kg.hm-2,比对照增产11.45%,并显著改善了白菜品质,可溶性糖、可溶性蛋白及VC含量增加显著,并能显著降低硝酸盐含量。
In order to use reasonably humic acid liquid foliar fertilizer to increase yield of Chinese cabbage, the effects of different concentrations of liquid humic acid foliar fertilizer on yield and quality of Chinese cabbage were studied by randomized block method. The results showed that 600 times of dilution was the most effective among all concentrations of liquid humic acid foliar fertilizer, the yield was increased significantly, reached 95 640 kg·hm^2 ,and was 11.45 % more than CK. With the concentration of 600 times of dilution, the quality was improved significantly,the content of soluble sugar, protein and VC was increased significantly,the content of nitrate in the Chinese cabbage was declined.
出处
《黑龙江农业科学》
2013年第4期28-30,共3页
Heilongjiang Agricultural Sciences
关键词
腐植酸
大白菜
产量
品质
humic acid
Chinese cabbage
yield
quality
