摘要
麦油两熟制大田试验结果表明;在共生期为25~30d的麦油两熟制双高产复合群体中,小麦基本苗是复合群体的主体,对麦油两作产量效应显著;花生密度对花生产量作用明显,但对小麦产量影响不大。在小麦90~270万株/hm2基本苗范围内,每增加15万苗,花生平均减产18kg/hm2;小麦花生两熟制一体化栽培高产复合群体指标为:小麦基本苗165~195万/hm2,花生13.5~16.5万穴/hm2。高效复合群体最优组合为:小麦基本苗120万/hm2,花生播15万穴/hm2。
Results from a field experiment showed that the number of basic seedling of wheat (NBSW) was the mains of the compound population and produced significant effects to yields of both Wheat and peanut in wheat-peanut cropping system with a 25~30 days cogrowth period; The plant density of peanut (PDP) exerted a greater influence on peanut yield, but little on wheat yield; An yield reduction of 18kg/hm2 occurred in peanut with an increase in NBSW of every 150000 plants/hm2 (in the NBSW was 900000~2700000 plants/hm2).The optimum compound population for the double high yields were that NBSW:1650000~1950000 plants/hm2 and PDP: 135000~165000 holes/hm2, and that for high profit in a year were that NBSW: 1200000/hm2 and PDP: 150000 holes/hm2.
出处
《中国油料》
CSCD
北大核心
1996年第4期31-33,36,共4页
基金
国家科委二级攻关项目
关键词
小麦
花生
两熟制
双高产栽培
复合群体
Wheat Peanut Two-cropping systerm bauble high-yield cultivationCompound population