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[目的]研究沼液在农业生产中的应用效果。[方法]以复合肥和普通农家肥为对照,设不同浓度的沼液处理。采用不同浓度沼液对西兰花、冰糖橙、香蕉3种作物进行追肥,通过田间试验,分别测定西兰花、冰糖橙、香蕉的产量、Vc含量和含糖量。[结果]用沼液进行追肥,可以增加西兰花、香蕉、冰糖橙的产量和Vc含量,增产率最高分别达111.90%、100.80%、132.40%,Vc含量的增加率最高分别达45.33%、33.13%、14.13%;香蕉和冰糖橙的还原糖含量增加率最高分别达407.56%和18.07%;沼液对3种作物的含糖量也有一定的影响,其中西兰花含糖量随沼液浓度的增大而减少,还原糖含量最大降幅达10.15%,总糖含量最大降幅达37.13%。[结论]综合分析,沼液在作物种植中有较大的推广应用价值。
[Objective] The research aimed to study the application effect of biogas slurry in agricultural production. [Method] With compound fertilizer and common farm fertilizer as control, different concentrations of biogas slurry were set up. Broccoli, rock candy orange and banana were topdressed with different concentrations of biogas slurry. The yield, Vc content and sugar content of broccoli, rock candy orange and banana were determined by field experiments. [Result] The yield and Vc content of broccoli, banana and rock candy orange were increased with biogas slurry fertilization, the highest yield was 111.90%, 100.80% and 132.40%, respectively, and the highest Vc content was 45.33% and 33.13 respectively % And 14.13%, respectively. The highest reducing sugar content of banana and rock candy orange was 407.56% and 18.07% respectively. The biogas slurry also had some effects on the sugar content of the three crops. Increase and decrease, the largest reduction of reducing sugar content of 10.15%, the largest decline in total sugar content of 37.13%. [Conclusion] The comprehensive analysis shows that biogas slurry has great popularization and application value in crop cultivation.