Effects of Diluted Biogas Slurry as Fertilizer on Growth and Yield of Tomato in Greenhouse

Plant growth-promoting rhizobacteria (PGPR) improve the growth and quality of several crops

“…Some studies showed that the application of PGPR can improve the growth environment of plants, such as regulating soil flora, delaying soil acidification, increasing soil nutrient conversion rate, etc., to promote the absorption of nutrients by plants to achieve the effect of promoting growth. Similarly, some PGPR strains also secrete plant hormones such as “Indole acetic acid (IAA)” to stimulate plant growth [ 3 , 4 , 5 ] It has been reported that the application of PGPR to crops improved their yield and quality [ [6] , [7] , [8] , [9] , [10] ]. For example, Fu [ 4 ] applied a combination of compound fertilizer and PGPR biostimulant in soybean planting, and the yield was 13.02 % higher than that of conventional fertilization.…”