摘要
采用田间小区试验,太湖蓝藻发酵后的沼液作有机肥,以化肥氮肥为对照,研究施用蓝藻沼液对甘蓝、白菜、辣椒的产量和维生素C、亚硝酸盐、重金属含量及土壤肥力的影响。结果表明:施用蓝藻发酵沼液后,甘蓝、辣椒、白菜分别增产9.96%、19.28%、13.51%,对甘蓝、辣椒、白菜有增产作用;甘蓝、辣椒、白菜的维生素C含量分别提高16.63%、20.90%、29.26%,亚硝酸盐含量分别降低了10.34%、9.41%、30.79%;与土壤本底值相比,土壤有机质含量增加4.72%～14.38%,有效磷含量增加2.49%～10.91%;甘蓝地土壤及甘蓝植株中重金属含量均在限量范围内。
The field plot experiment was conducted to study the effect of Taihu lake blue-green algae after anaerobic fermentation on biomass,vitamin C content,nitrite content,heavy metal contents and soil fertility of cabbage,Chinese cabbage and pepper,in comparison with chemical fertilizer.The results showed that in slurry applied fields,the biomasses of cabbage,pepper and Chinese cabbage were increased by 9.96%,19.28% and 13.51%,respectively.Meanwhile,the vitamin C contents of cabbage,pepper and Chinese cabbage were raised by 16.63%,20.90% and 29.26%,respectively.The nitrite contents were decreased by 10.34%,9.41% and 30.79%,respectively.Compared with soil background value,soil organic matter contents were increased by 4.72%-14.38%,and available phosphorus contents were increased by 2.49%-10.91%.The heavy metal contents in soil and body of cabbage were lower than the national standards.
出处
《江苏农业学报》
CSCD
北大核心
2011年第4期770-774,共5页
Jiangsu Journal of Agricultural Sciences
基金
国家科技支撑计划项目(2009BAC52B04)
江苏省科技支撑--社会发展项目(BE2008608)
关键词
蓝藻沼液
蔬菜
产量
品质
土壤肥力
重金属
blue-green algae slurry
vegetable
biomass
quality
soil fertility
heavy metal
