不同全水溶性肥料配方对生菜产量和品质的影响

为了探索生菜适宜的水溶性肥料配方，在扬州大学环境科学与工程学院实验温室中进行了盆栽基质一水培试验。试验采用蛭石作为栽培基质，对6种不同全水溶性肥料配方营养条件下的生菜产量和品质进行了研究。结果表明：配方1（Ca（N03）2·4H2O、KNO3、KH2PO4、MgSO4·7H2O浓度分别为：980、800、200、500mg／L）的生菜品质较好，产量也不低，是综合效果较好的全水溶性肥料配方。可见，适宜配方的全水溶性肥料对生菜产量和品质具有显著的改善作用。

Effects of Different Water Soluble Fertilizer Formulations on the Yield and Quality of Lettuce

In order to select optimal water soluble fertilizer formula for lettuce, pot experiment with substrate and nutrient solution was conducted in greenhouse in College of Environmental Science and Engineering,Yangzhou University. Vermiculite was used as cultivation substrate to study the effects of six different formulas of water soluble fertilizers on the yield and quality of lettuce. The results showed that formula 1 （Ca （NO3）2· 4H20, KNO3, KH2POn,MgSO4.7H20 concentrations were 980 rag/L, 800mg/L,200 mg/L,500 mg/L respectively）had reasonable high quality and yield. In conclusion, formula 1 water soluble fertilizer could improve the yield and quality of lettuce. Therefore,it was recommended as an optimal forma for the growth of lettuce.