摘要
前期较早形成较繁茂的营养体,而后期相对来看又不过份郁闭的群体长势,有利于通风透光,光合效益高,是高产型长相和结构形式;就一般年份来说,限制黑龙江省大豆生产的主要气象因子是水分,窄行距大豆地块有利于保水;黑龙江省现有的几个大豆品种,最大叶面积指数在6左右、密度在35～45万株/公顷情况下,株间微气象环境较为适宜,大豆产量高;倒伏对大豆产量和品质有严重影响,垅作能相对减轻倒伏程度,而且垅作比平作能相对提高地温。
The population that formed a flourishing shoots in the early stage and not shaded severely in the later stage is a high yield character and struct- ure which is in favor of gas exchange and transmission of sunlight.As co- ncerns most years,water is a dorminant meteorological factor which lim- its soybean production in Heilongjiang Province.The narrow line span is in favor of water reservation.Among soybean species cultivated in Heil- ongjiang,the micrometeorological environment between plants where maximum LIA is around 6 and dencity is about 0.35-0.45 million plants ha is appropriate and the yield is higher.Lodging have great effect on yield and quality.The rowcropping-can relatively reduce the lodging degree,and it also can relatively increase soil temperature by comparison with sowing on level row.
出处
《中国农业气象》
CSCD
北大核心
1991年第2期11-15,6,共6页
Chinese Journal of Agrometeorology
基金
中日合作"三江平原农业综合试验站项目"
