大豆暗垄密群体内田间小气候变化  

The Change of Climate in Field of Culture Technique of Hidden Ridge Close Planting of Soybean

作　　者：王晶英[1] 张兴梅[2] 周勋波[2] 董喜强 曾庆江 

机构地区：[1]东北林业大学,哈尔滨150040 [2]黑龙江八一农垦大学,密山158308 [3]友谊农场二分场

出　　处：《黑龙江农业科学》2004年第1期28-29,共2页Heilongjiang Agricultural Sciences

摘　　要：暗垄密是大豆产栽培技术,与对照相比单产平均增加20%,为了探讨其增产机理,对暗垄密群体内田间小气候变化进行了调查,结果表明:暗垄密群体前期比对照封垄早(提前10d),后期衰落慢,提高了光能利用率;两种栽培模式生育中期冠中层及冠下层(冠内地表)的光照强度均较低,冠层内的通风性差异不明显;暗垄密群体耕层土壤的保水力较强。The yield of soybean cultured with technique of hidden ridge close planting was increased by 20%. For approaching mechanism of high-yield in this planting model, microclimate in field was investigated. The result was showed that time of sealing ridge was earlier and efficiency of energy conversion has been increasesd in hidden ridge close planting model; The ventilation capacity of the shoot layer had a little of change between. Storage-watercapacity of the plough layer was increased.

关 键 词：大豆 栽培模式 暗垄密 田间小气候 

分 类 号：S565.1[农业科学—作物学]