羊粪-菇渣蚓粪与化肥配施对油麦菜产量及品质的影响

Effects of combined application of vermicompost and chemical fertilizer on yield and quality of Lactuca sativa

开展蚓粪与化肥配施对蔬菜产量与品质影响的研究,对于合理施肥促进蔬菜清洁生产具有指导意义。本研究采取盆栽试验,调查了以羊粪和菇渣为原料生产的蚓粪与化肥配施对油麦菜产量、硝酸盐含量、氨基酸含量与组成等的影响。结果表明,与单施化肥相比,适量蚓粪配施化肥可在一定程度上提高油麦菜产量,使油麦菜含水量降低1.02%~2.46%,硝酸盐含量降低20.78%~30.30%,显著提高了油麦菜氨基酸总量、必需氨基酸、鲜味氨基酸、甜味氨基酸和药效氨基酸含量。综合来看,等氮量条件下,蚓粪氮占比30%~50%时效果最佳。因此,以适量蚓粪配施化肥提高油麦菜产量,改善油麦菜品质是可行的。

Understanding the effects of combined application of vermicompost and chemical fertilizer on yield and quality of vegetables is important for guiding the rational fertilization in cleaner vegetable production.We examined the effects of combined application of vermicompost and chemical fertilizer on yield,nitrate content,amino acid content and composition of Lactuca sativa in a pot experiment.The results showed that,compared with the single application of chemical fertilizer,combined application of appropriate amount vermicompost and chemical fertilizer increased the yield,while reduced the water content of L.sativa by 1.02%-2.46%and nitrate content by 20.78%-30.30%.The combined application of vermicompost and chemical fertilizer significantly increased the contents of total amino acids,essential amino acids,delicious amino acids,sweet amino acids,and pharmacodynamic amino acids.Under the conditions of equal amount of nitrogen,30%-50%of nitrogen from vermicompost was the optimal.Therefore,the combined application of vermicompost and chemical fertilizer is feasible for the improvement of both yield and quality of L.sativa.