施用有机肥替代化肥、化肥减量对结球生菜生长的影响

本研究通过施用黑老虎、时科两种微生物有机肥,对化肥进行减量,与常规施肥进行对比,发现：施用微生物有机肥,化肥减量10%、减量20%,结球生菜的死亡率明显低于常规施肥；在结球生菜生长中期,施用生物有机肥结球生菜的展开幅度明显好于常规施肥；在结球生菜采收期,施用生物有机肥,化肥减量10%,时科微生物有机肥和黑老虎微生物有机肥的结球生菜单果重分别为0.54g和0.80g,相比与常规施肥,提高了31.7%和95.1%。施用微生物有机肥,化肥减量20%,时科微生物有机肥和黑老虎微生物有机肥的结球生菜单果重分别为0.49g和0.61g,相比与常规施肥,提高了19.5%和48.7%。

Effects of Applying Organic Fertilizer instead of Chemical Fertilizer and Reduction of Chemical Fertilizer on Growth of Heading Lettuce

In this study, two kinds of microbial organic fertilizers, black tiger and chronology, were applied to reduce the amount of chemical fertilizer, and compared with conventional fertilization, it was found that: applying microbial organic fertilizer can reduce the amount of chemical fertilizer by 10% and 20%, and the mortality rate of heading lettuce is significantly lower than that of conventional fertilization; in the middle growth stage of heading lettuce, the spreading range of heading lettuce with bio organic fertilizer is obviously better than that with conventional fertilization. During the harvest period of lettuce, the application of bio-organic fertilizer reduced the weight of chemical fertilizer by 10%. The fruit weight of nodule menu of seasonal microbial organic fertilizer and black tiger microbial organic fertilizer were 0.54g and 0.80g, respectively, which increased by 31.7% and 95.1% compared with conventional fertilization. When microbial organic fertilizer was applied, the amount of chemical fertilizer was reduced by 20%. The fruit weight of nodule-forming menu was 0.49g and 0.61g, respectively. Compared with conventional fertilization, the fruit weight of nodule-forming menu was increased by 19.5% and 48.7% in seasonal microbial organic fertilizer and black tiger microbial organic fertilizer.