不同覆盖方式对冬闲稻田马铃薯生长及产量的影响

在冬闲稻田里以中薯3号为试验材料,进行了稻草覆盖、摆播稻草 地膜覆盖、沟播稻草 地膜覆盖、地膜覆盖、敞土等不同覆盖方式栽培马铃薯的田间比较试验。结果表明:冬闲稻田地膜覆盖栽培的马铃薯出苗最早,地膜覆盖和沟播稻草 地膜覆盖栽培的马铃薯出苗率最高;敞土栽培的马铃薯植株的株高显著低于覆盖栽培;摆播或沟播稻草 地膜覆盖栽培马铃薯的产量和商品薯率最高,稻草覆盖栽培和地膜覆盖栽培次之,产量和商品薯率显著高于敞土栽培;摆播或沟播稻草 地膜覆盖栽培马铃薯的效益最高,地膜覆盖和稻草覆盖栽培马铃薯的效益次之,敞土栽培马铃薯的效益最低。

Effects of Mulching Methods on the Growth and Yield of Potatoes Grown in Winter Fallow Rice Fields

Five mulching methods including straw mulching,straw plastic film mulching with surface-sowing,straw plastic film mulching with furrow-sowing,plastic film mulching and non-mulching to cultivate potatoes in winter fallow rice fields was compared using ''Zhongshu No.3'' as materials.The results showed that potatoes cultivated with plastic film mulching emerged first,and the seedling emergence rates of potatoes cultivated with plastic mulching and straw plastic film mulching with furrow-sowing were the highest.The plant height of potatoes cultivated with non-mulching was shorter than that of potatoes cultivated with mulching significantly.The yield and marketable tuber percentage of potatoes cultivated with straw plastic film mulching with furrow-sowing or surface-sowing were the highest,and those of potatoes cultivated with straw mulching and plastic film mulching took the second place and were higher than those of potatoes cultivated with non-mulching.The economical benefits of potatoes cultivated with straw plastic film mulching with surface-sowing or furrow-sowing were the highest,those of potatoes cultivated with straw mulching and plastic film mulching took the second place,and the economical benefit of potatoes cultivated with non-mulching was the lowest.