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用腐植酸钠与保水剂以不同比例配施,在生菜生产中进行了应用效果研究。试验结果表明,与对照相比,同时施用腐植酸钠和保水剂均表现出对生菜的生长有促进作用,T1、T2、T3的株高分别增加了20.63%、46.87%、58.75%,产量增加38.4%～61.3%,达显著水平(P<0.05);在品质方面,T1、T2和T3生菜的Vc含量分别比对照增加17.25%、28.60%、46.54%,粗蛋白含量分别增加16.25%、36.46%、48.01%。硝酸盐含量分别减少19.68%、28.37%、33.62%。在等氮、磷、钾养分条件下,腐植酸钠和保水剂的比例以7∶3的配比效果最佳。
With humic acid sodium and water-retaining agent in different proportions with the application of lettuce production in the application effect. The results showed that compared with the control, both the sodium humate and water retaining agent showed the promotion effect on the growth of lettuce. The plant height of T1, T2 and T3 increased by 20.63%, 46.87% and 58.75%, respectively, and the yield was increased The Vc contents of lettuce in T1, T2 and T3 increased by 17.25%, 28.60% and 46.54% respectively compared with the control, while the crude protein content increased by 16.25% and 36.46%, respectively %, 48.01%. Nitrate decreased by 19.68%, 28.37%, 33.62% respectively. Under the conditions of nitrogen, phosphorus and potassium nutrients, the ratio of sodium humate and water-retaining agent is the best with the ratio of 7: 3.