藤蕹大棚越冬留种关键技术研究

为探索藤蕹大棚越冬的关键技术,以湖南藤蕹为试材,采用4种大棚越冬留种模式,分别是处理1:大棚+中棚+小拱棚;处理2:细土基质混合物盖畦,大棚+中棚+小拱棚;处理3:细土基质混合物盖畦,大棚+中棚+小拱棚+地膜;处理4:细土基质混合物盖畦,大棚+中棚+小拱棚+无纺布;以种藤窖藏越冬作对照(CK)。对4种模式下藤蕹的出苗时间、出苗数、苗长、产量以及经济效益进行了比较研究。结果表明:处理4比对照提早出苗18 d,出苗数量增加20%以上,增产效果达到27.5%,且第1次起苗的经济效益大大增加,幅度达到155.3%,值得推广。

Key Technology of Ipomoea squatica Forsk Overwintering Seed Reservation in Plastic House

In order to explore the key technology of Ipomoea aquatic Forsk overwintering seed propagation in plastic house, using Hunan Ipomoea aquatica Forsk as material and applying with 4 modes of overwintering seed reservation, respectively were: ① plastic house, tunnel, small arch, ② covered by mixture of fine soil and matrix, plastic house, tunnel, small arch, ③ covered by mixture of fine soil and matrix, plastic house, tunnel, mulching treatment, ④ covered by mixture of fine soil and matrix, plastic house, tunnel, nonwovens fabric, by contrast of wintering cane hoard (CK). Compared the sprout time, seedling number, length, yield and economic efficiency of Ipomoea aquatica Forsk under 4 modes, the results showed that compared with the control, the 4th mode was 18 days earlier in sprout time, seedling number increased 20%, the effect of yield increased 27.5%, and the economic benefit of first seedlings was greatly increased, the rate reached 155.3%. The results showed that 4th mode worth popularizing.