Effect of highly efficient nutrient solution of biogas slurry on yield and quality of vegetables | 板楂娌兼恫ュ绘恫ㄨ浜ч璐ㄤ
2011
Gao Tongguo, China Agricultural University, Beijing (China), College of Biomass Engineering | Chen Nan, China Agricultural University, Beijing (China), College of Biomass Engineering | Li Weiqun, Soil and Fertilizer and Environment and Resource Institute of Heilongjiang Academy of Agricultural Sciences锛Harbin (China)
[Objective] The paper was to study highly efficient utilization of biogas slurry and the effect of highly efficient biogas slurry on vegetables, so as to provide basis for wide and effective application of biogas slurry. [Method] Using secondary aerobic fermentation technology, a small amount of humic acid was added into biogas slurry to enhance the biological activity of biogas slurry. Through greenhouse experiment, the effect of highly efficient nutrient solution of biogas slurry on yield and quality of green pepper, tomato and cucumber was studied. [Result] Compared with control and traditional application of biogas slurry, application of highly efficient nutrient solution of biogas slurry increased the yield of green pepper, tomato and cucumber, and the increase extents were 12.4%, 47.4%, 19.9% and 2.7%, 15.9%, 9.1%, respectively. Compared with traditional application of biogas slurry, application of highly efficient nutrient solution of biogas slurry significantly increased Vc content of green pepper and cucumber with the increase extent of 16.8% and 43.8%, respectively. [Conclusion] Application of highly efficient nutrient solution of biogas slurry can effectively promote the yield of green pepper, tomato and cucumber and change the qualities of vegetables, and significantly enhance the biological activity of biogas slurry.
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