设施甜瓜秧蔓还田对下茬豇豆制种生产和土壤质量的影响
Effects of Melon Vines Returning to the Field on Cowpea Seed Production and Soil Quality

为研究蔬菜废弃物资源化还田效应，在大棚内甜瓜–豇豆种植模式下进行甜瓜秧蔓还田后种植豇豆制种，研究甜瓜秧蔓还田对下茬豇豆制种生产和土壤质量的影响。甜瓜秧蔓全量还田，亩还田量为1404.45 kg。秸秆粉碎机械将甜瓜秧蔓就地粉碎，配施腐熟剂进行翻耕，灌水进行高温闷棚14天，闷棚结束后种植豇豆。试验结果表明，甜瓜秧蔓还田、豇豆收获后土壤理化性质变化较大，在豇豆种子产量增加64.70%的情况下，依然可以使土壤硝态氮含量提高81.15%、速效钾含量提高12.91%、有机质含量提高6.67%、电导率升高27.41%。
In order to study the effect of returning vegetable wastes to the field, the muskmelon seedlings were returned to the field and cowpea seeds were planted under the cultivation pattern of musk-melon-cowpea in the greenhouse, the effects of returning muskmelon seedlings to field on cowpea seed production and soil quality were studied. The total amount of melon seedling and vine returned to the field was 1404.45 kg per mu. The straw crushing machine crushed the muskmelon vine on the spot, mixed with the decomposing agent to plough, irrigated the high temperature stuffy shed for 14 days, and planted cowpea after the stuffy shed ended. The results showed that the physical and chemical properties of the soil changed greatly when the melon seedlings were returned to the field and the cowpea was harvested, and the yield of cowpea seed increased by 64.70%, the content of nitrate nitrogen, available potassium, organic matter and electrical conductivity increased by 81.15%, 12.91%, 6.67% and 27.41%, respectively.