摘要
通过对玉米、大豆、小麦、甜菜、亚麻５作物的４种不同轮作体系、１个轮作周期的试验，分析了不同前茬对甜菜根产量及效益、甜菜茬对后作的产量及效益的影响。结果表明，大豆是甜菜的最好前茬，比其它茬口增产块根１０．８％～１４．４％，纯效益可增收２６．５％～３７．１％；甜菜茬种玉米、大豆比种其它作物产量高、效益好；从产量和效益综合分析，较好的轮作体系应为：大豆一甜菜（亚麻）一玉米，或大豆一甜菜一玉米一小麦。
The experiment of four different rotation systems of maize,soybean,wheat,sugarbeet,flax and one rotation cycle have been performed in which the effect of different previous cropon root yield and benefit of sugarbeet adn sugarbeet crop on yield and benefit of its followcrop were analysed.It was shown that soybean was the best previous crop of sugar beet,which have increased 10. 8%～14. 4%,for root yield,net benefit increased 26.5%～37.1%than other crops;Maize and soybean have been cultured on sugarbeet crop, their yield and benefits were higher than other crops; By comprehensive analysis of yield and benefit,the better rotation system was: Soybean 一Sugarbeet(Flax)一Maize,or Soybean一Sugarbeet一Maize一Wheat.
出处
《中国糖料》
1996年第2期24-26,共3页
Sugar Crops of China
关键词
甜菜
前茬
后作
产量
经济效益
Sugarbeet Previous crop Follow crop Yield
