Abstract: To improve the yield and quality of tomato, with ‘Provence’ tomato as the research object, the paper studied the physicochemical properties of the substrate, the microbial population, the growth quality and yield of tomatoes in the different treatments by setting 0%（T1）,1%（T3）,2%（T5）and 4%（T7）garlic straw additive and 0%+soybean phospholipid（T2）,1%+soybean phospholipid（T4）,2%+soybean phospholipid（T6）,4%+soybean phospholipid（T8）according to whether to add the “soybean phospholipid” microbial bacterial agent（the amount of ‘soybean phospholipid’ microbial agent 120 g）. The results showed that the addition of a certain amount of garlic straw and soybean phospholipids to the cultivation substrate could significantly increase the number of bacteria in the substrate, enhance the photosynthetic capacity of leaves and improve the quality of fruits. Under the T4 treatment the addition of garlic straw at 1% per pot and 120 g of soya phospholipids produced a synergistic effect which promoted the healthy growth and quality of tomato and can be used as a more suitable amount of soya phospholipids in the cultivation of tomato.

Key words: garlic straw, microorganism fertilizers, substrate trait, tomato, soy phospholipids