沼液叶面肥对脱水油白菜产量及品质的影响

目的]研制以沼液为主要成分的叶面肥,为农业生产服务。方法]通过田间小区试验研究不同配方沼液叶面肥对脱水油白菜产量和品质的影响。结果]处理沼液2倍清水稀释＋化肥和处理沼液3倍清水稀释＋化肥的产量增幅最大,分别比对照增产15.77%和12.71%;其次是处理沼液4倍清水稀释＋化肥和处理沼液2倍清水稀释＋尿素,分别比对照增产5.68%和1.73%;处理沼液2倍清水稀释比对照增产0.96%。处理沼液2倍清水稀释＋化肥的油白菜叶片叶绿素含量增加最多。各处理的脱水油白菜维生素C含量都有所增加,处理沼液2倍清水稀释＋化肥的维生素C含量增加显著。结论]不同浓度的沼液均能在一定程度上提高脱水油白菜的产量和品质。

Effects of Biogas Slurry Foliar Fertilizer on the Yield and Quality of Dehydrated Oil Pakchoi

Objective] The aim of the study was to prepare foliar fertilizer with biogas slurry as main component so as to serve agricultural production.Method] The effects of different formulas of biogas slurry foliar fertilizer on the yield and quality of dehydrated oil pakchoi were studied through field plot experiment.Result] Compared with CK,the yield increments of treatments with biogas slurry diluted with clear water for 2 times + chemical fertilizer and biogas slurry diluted with clear water for 3 times + chemical fertilizer were greatest and their yields were increased by 15.77% and 12.71% resp.;that of treatments with biogas slurry diluted with clear water for 4 times + chemical fertilizer and biogas slurry diluted with clear water for 2 times + urea were secondary and their yields were increased by 5.68% and 1.73% resp.and the yield of treatment with biogas slurry diluted with clear water for 2 times was increased by 0.96%.The chlorophyll content in oil pakchoi leaves of treatment with biogas slurry diluted with clear water for 2 times + chemical fertilizer was increased most.The Vc contents in dehydrated oil pakchoi of all the treatments were increased a little and that of treatment with biogas slurry diluted with clear water for 2 times + chemical fertilizer was increased significantly.Conclusion] The boigas slurry at different concn.could enhance the yield and quality of dehydrated oil pakchoi to some extent.