自然降水与夏大豆生长发育关系分析  

Relationship between rainfall and growth and development in summer soybean

作　　者：陈峰[1] 杨义法[2] 曾广飞[2] 陈若礼[2] 张存岭[3] 纪永民[4] 

机构地区：[1]安徽省濉溪县五铺农场,濉溪235118 [2]安徽省濉溪县农业技术推广中心,濉溪235100 [3]安徽省濉溪县科学技术协会,濉溪235100 [4]安徽省濉溪县科技开发中心,濉溪235100

出　　处：《大豆通报》2006年第1期4-8,共5页Soybean Bulletin

基　　金：安徽省淮北市重点科研课题"优质大豆新品种筛选及标准化生产技术研究与推广"(2004-01-40)

摘　　要：利用安徽省濉溪县1970-2004年大豆统计产量和相应的实测气象数据进行了统计分析。结果表明：濉溪县大豆幼苗期和鼓粒期的降水量、花荚期和全生育期的雨日与气象产量呈显著直线相关，大豆生长季节降水及其时空分布是造成实际产量围绕生产水平线波动的主要原因。大豆生育期内适宜降水为：降水量380-540mm，雨日24-34d。濉溪县大豆生育期内降水适中，涝多于旱。当耕层土壤含水量低于16％，预计5-7d内又无雨量较大的降水时，要及时灌溉浇水。Yield of soybean and corresponding meteorological data from 1970 to 2004 was analyzed. Seasonal distribution of precipitation directly influenced soybean yield, which is the main factor influencing actual yield in current production level. Linear correlation between rainfall during seedling stage, pod fill stage and yield was found, and days of rainfall during the flower stage and whole growing season were positively related to yield. Optimum rainfall during growing season ranged from 380 to 540 mm, and days of rainfall were 24 to 34 days. Appropriate irrigation should be carried out when soil moisture was below 16% and with no perspective rainfall within 5 to 7 days.

关 键 词：夏大豆 降水量 产量 淮北地区 

分 类 号：S162.5[农业科学—农业气象学]