NFT栽培槽槽底形状对生菜生产效果的影响

Effects of the different bottom shapes of NFT cultivation bed on the growth and quality of the lettuce

以生菜为试材,研究了NFT栽培槽不同槽底形状对生菜生产效果的影响。试验结果表明:NFT栽培槽不同波纹式槽底形状对生菜的生物积累量有显著影响,但对生菜的品质无显著影响,其中,以纵剖面是不等边三角形的波纹式槽底形状对生菜的植株开展度和产量的影响最为显著。在NFT栽培方式中,栽培槽底铺不铺无纺布对生菜产量有显著影响。综合生菜产量因子与商品性状,以[(6+14)×4]的纵剖面不等边波纹式栽培槽槽底形状最优。

Taking the lettuce as material,the authors designed the different bottom shapes of NFT cultivation bed to study the effects on the growth and quality of the lettuce.The results indicate that the different bottom shapes of NFT cultivation bed has significant influence on the aboveground fresh and dry weight of lettuce,but has no significant influence on the quality of lettuce.And the bottom shape whose straight-cut section is a scalene(triangle),has significant influence on the expansion and the yield of lettuce.In NFT,the cultivation bed with no-cloth cover has significant influence on the yield of lettuce.Taken the quality and economic benefits into(accounts),the bottom shape as(6+14)×4 is better.