摘要
通过对北疆乌兰乌苏、莫索湾及南疆莎车2003—2004年两年棉花分期播种资料的分析研究,得到:新疆延迟型冷害与≥10℃活动积温相关最好。籽棉产量与≥10℃积温有极显著正相关。≥10℃活动积温是新疆延迟型冷害的优良指标。当以相对减产量确定延迟型冷害的积温级别时,还应考虑当地正常的产量。
According to the studying on cotton different in northern and southern Xinjiang,the result show that： sowing time data for years of 2003 and 2004 summer and autumn delayed type cool injury in Xinjiang have a positive correlation with cumulative temperatures of ≥10℃ .The yield of unginned cotton have a extremely remarkable positive correlation with cumulative temperatures of ≥10℃.The cumulative temperatures of ≥10℃ is a superior index of delayed type cool injury in Xinjiang. When determined cumulative temperatures rank of delayed type cool injury by relative reduced yield, the local normal yield should take into account.
出处
《沙漠与绿洲气象》
2007年第2期44-46,共3页
Desert and Oasis Meteorology
基金
科技部社会公益研究专项(2002DIB50134)
中国气象局新技术推广项目(CMATG2006M20)
国家科技支撑项目"农业重大气象灾害监测预警与调控技术研究"共同资助
关键词
棉花
延迟型冷害
指标
cotton
delayed type cool injury
index
