| This paper takes Chinese cabbage as the object of study,through used compound fertilizer and biogas fertilizer planting.By measuring seven indicators :Biomass,Nitrate content,TS,VS,Content of vitamin C,Total sugar and reducing sugar content to compared biogas fertilizer with compound fertilizer influence on Chinese cabbage quality.In order to get the technology about biogas fertilizer cultivate cabbage.Meanwhile,the influence of soil physical and chemical properties was compared.The results showed that:About the quality of the cabbage,the total solid content and volatile solid content,there is no significant difference between the group of compound fertilizer and the group of biogas fertilizer,different application rate of biogas fertilizer was also no significant difference.there is a significant difference about the cabbage weight between the compound fertilizer group and biogas fertilizer group,the cabbage weight with biogas fertilizer group was greater than composite fertilizer group,compared with group A,the weight of B,C,D three groups increased by12.37%,32.93% and 34.93%.At the different application rates groups of biogas fertilizer,with the increase of biogas fertilizer application rates,the cabbage weight also showed a rising trend.The cabbage nitrate content of biogas fertilizer group was significantly lower than the composite fertilizer group,and there were significant difference between the groups.Compared with group A,nitrate content of B,C,D three groups decreased by 64.6%,63.4% and 51.5%.With the increase of fertilizer application rate,the rate of decrease in nitrate content was decreased.When the weight of group D was increased by 1.5% compared with that of C group,the nitrate content increased 83.6%.Nitrate content increased with the increase of fertilizer application rate.The excessive amount of fertilizer will lead to the accumulation of nitrate,but the cumulative nitrate content was still lower than A group.Compared to the total sugar and reducing sugar of biogas fertilizer group and compound fertilizer group,different application rate groups were no significant difference,but the biogas fertilizer compound fertilizer planting group compared to the A group has increased.about the vitamin C,the application of biogas fertilizer group were better than other group,compared with the group A,the vitamin C content of B,C,D three groupsincreased 35.89%,36.03% and 19.77%.In the application of different fertilizer groups,when the biogas fertilizer reaches a certain value,the increase of vitamin C content decreased.Vitamin C content of group D was less than group C,but the content of vitamin C in group D was still higher than group A.Application of biogas fertilizer was beneficial to promote the growth of cabbage.Application of biogas in the C group to achieve the maximum biomass,the vitamin C content was better than compound fertilizer group,And the reduction of nitrate content was the largest,eventually,identified as group C(always applying biogas fertilizer at the during growth,basic fertilizer 600 m L,additional fertilizer three times: after planting 15 days additional fertilize 500 mL,then Applying 600 mL per 10 days again)as biogas fertilizer technology planting cabbage.About the quality of the soil,using different fertilizers and different application rates of biogas fertilizer,the total nitrogen,soil available potassium,available phosphorus and volatile solid content had no significant difference.Planting cabbage consecutively,using the biogas fertilizer group,total nitrogen,phosphorus and potassium in the soil effective phosphorus content of consume lower than the consumption of compound fertilizer group,biogas fertilizer could slow down the total nitrogen,phosphorus and potassium loss in the soil,for the soil volatile solid content before and after planting,different fertilizer source,or continuous planting,there was no significant difference between groups. |
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