摘要
利用贵州省铜仁市10个常规气象站1970—2009年气象观测资料及68个区域自动站2005—2009年的温度和降水等资料,分析了铜仁市的降雨、夏旱发生规律,同时在不同海拔进行杂交玉米播种期试验.结果表明:中迟熟杂交玉米提早在3月上旬后期至中旬前期播种,可以在雨水较多的5月下旬-6月下旬抽雄开花,避开7-8月伏旱天气的不利影响,提高双穗率、降低空秆率,增加穗粒数和百粒质量,达到趋利避害的目的,获得较高的产量.
Use the observation data of 10 meteorological stations in Tongren from 1970 to 2009 and 68 regional automatic stations temperature,precipitation and other data from 2005 to 2009,analysed Tongren rainfall,drought occurrence regularity,simultaneously at different altitude was 3 time of sowing test of hybrid maize,the results show that late maturity hybrid corn to be sown in early March to mid can be tasseling blossom form late May to late June having more rain,avoided July to August drought weather adverse effects,improve the double spike rate,reduce the rate of empty stem,increase grain number and 100-seeds weight,to draw on the advantages and avoid disadvantages purposes,obtain the highest yield.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第11期84-89,共6页
Journal of Southwest China Normal University(Natural Science Edition)
基金
国家发改委<贵州省应对气候变化规划思路研究>课题资助项目(12130038)
关键词
气候资源
杂交玉米
避旱栽培
减灾对策
climate resources
hybrid maize
avoid the dry cultivation
disaster reduction countermeasure
