Effect of Concentrated Biogas Slurry on Yield,Disease Resistance and Quality of Greenhouse Cucumber

Taking cucumber as test materials,the effect of concentrated biogas slurry on yield,disease resistance and quality of cucumber that was irrigated concentrated biogas slurry,marsh fertilizer,fertilizers and water were studied.The results showed that compared with water,biogas slurry increased yield by 21.23%(914.56kg/667m2),and the yield difference of the two treatments was significant.The yield difference of biogas slurry and fertilizers was no significant.Compared with water,biogas slurry increased disease resistance by 39.25%,marsh fertilizer increased disease resistance by 53.90%.Biogas slurry increased significantly the contents of vitamin C(9.92mg/100g),but their contents of soluble solid were lower than water by 16.07%.Marsh fertilizer reduced the contents of vitamin C(5.70mg/100g),which were lower than water by 24.6%,and the same to the contents of soluble solid by 14.29%.Therefore,adding right amount of potassium fertilizer into concentrated biogas slurry could improve the quality of cucumber.