沼液追施对设施甜椒产量、品质及养分吸收的影响

Effect of Biogas Slurry Topdressing on Yield,Quality and Nutrient Absorption of Sweet Pepper

文章以设施甜椒为对象,研究蔬菜废弃物沼液作为追肥对产量、品质和养分吸收的影响,为蔬菜废弃物沼液的合理利用提供技术指导。结果表明,相比追施化肥(T1)处理,沼液部分替代(沼液化肥配施T2)处理和全部替代化肥(T3)处理增加了产量,其中T2的产量最高,而过多的沼液处理(T4)会降低产量;相对于常规施肥,追施沼液能提高设施甜椒的Vc含量,降低硝酸盐含量,提高糖酸比,其中T2的效果最佳;与T1处理相比,追施沼液的处理并没有降低甜椒对养分的吸收。综合分析认为,设施甜椒栽培中追肥管理中沼液和化肥配施是最好的方式。蔬菜废弃物沼液的合理利用对我国农业可持续发展具有重要意义。

The effects of vegetable waste biogas slurry on yield,quality and nutrient absorption of sweet pepper were studied. The results showed that compared with chemical fertilizer（ T1）,the treatment of biogas slurry ＋ chemical fertilizer（ T2） and biogas slurry（ T3） increased crops yields. The excess use of biogas slurry reduced sweet pepper yield（ T4）.And compared with T1,the application of biogas slurry improved Vc content of the sweet pepper,reduced the nitrate content,increased the sugar and acid ratio,and the T2 was the best. Also compared with T1,the application of biogas slurry did not decrease the nutrient absorption of sweet pepper. The comprehensive analysis suggested that biogas slurry ＋ chemical fertilizer was a better measure for sweet pepper cultivation.