Effects of Biogas Slurry Combined with Chemical Fertilizer on Cabbage Quality and Soil Nutrients
To investigate the effects of biogas slurry combined with chemical fertilizer on vegetable quality and soil nutrients,a field experiment was conducted on the cultivation of Chinese cabbage using biogas slurry combined with chemical fertilizer.Five different treatment groups were set up for the ex-periment,including single application of chemical fertilizer(CK),combined application of biogas slurry and chemical fertilizer(T1,T2,T3),and single application of biogas slurry(T4).The results showed that the combination of biogas slurry and chemical fertilizer significantly improved the yield and quali-ty of Chinese cabbage.Compared with CK,the cabbage yield of T2 increased by 55.6％,the total sugar and reducing sugar content increased by 4.6％and 16.3％respectively,and the nitrate content de-creased by 7.8％.Meanwhile,the combination of biogas slurry and chemical fertilizer improved the nu-trient content of the soil.Compared with CK,the combination of biogas slurry and chemical fertilizer increased the organic matter content in the soil by 12.5％to 50.0％.The content of available phos-phorus,ammonium nitrogen,and nitrate nitrogen in T2 increased by 25.10％,30.89％,and 44.66％,respectively.The total nitrogen content of T3 increased by 44.43％.The quick acting potassium con-tent of T4 increased by 0.89％.
万方数据
维普
