摘要
研究表明,大豆大垄窄行密植栽培较垄三栽培生育期延迟3～7d,株高平均增加3～5cm,倒伏加重,开花以后单株干重、叶面积及单株荚粒数下降,但群体干重(18.01～189.60g/m^2)、叶面积指数(0.038～1.270)及荚(23.7～149.6个/m^2)粒(除合丰25号66.7株/m^2处理外,增加51.8～163.6个/m^2)数增加,进而提高大豆产量。生产上应选用熟期适宜、矮秆或半矮秆强抗倒伏的品种,密度以44.4株/m^2以下为宜。
The results showed: under wide ridge - narrow row - compact planting soybean cultural system, compared with wide row (check) planting the growth period delayed for 3 - 7 days, plant height increased 3 - 5cm, dry matter weight per plant, leaf arau, number of seeds per pod decreased; but the dry matter weight (18.01 - 189.60g/m2), LAI (0.038 - 1.270), number of pods (23.7 - 149.6/ m2) and seeds (51.8 - 163.6/m2; except Hefeng 25, while the density was 66.7 plant/m2 ) of soybean increased and further more the yield increased. In soybean production, the varieties with appropriate mature period , short stalk or semidwarf, resistance to lodging should be applied, and the density should be 44.4 plant/m2.
出处
《中国农学通报》
CSCD
1999年第6期35-37,共3页
Chinese Agricultural Science Bulletin
基金
"948"智引项目"大豆密植高产品种及栽培技术"的部分内容
关键词
大豆
大垄窄行密植
群体
生育动态
密植
Soybean Wide ridge - narrow row - compact planting soybean Population Situa-tion of growth and development
