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Position: Home > Articles > Preliminary Study on Characteristics of Late Spring Coldness and Its Defensive Measures in Wheat Journal of Henan Agricultural Sciences 2014,43 (2) 35-37+42

小麦倒春寒发生特点及防御措施初探

作  者:
陈襄礼;李林峰;王重锋;邵瑞鑫
单  位:
柘城县农业局;河南农业大学
关键词:
小麦;倒春寒;冻害;影响;栽培措施
摘  要:
利用柘城县气象局1990-2013年3-4月日最低气温资料,分析了柘城县倒春寒天气发生的特征及其对小麦产量的影响,探讨了不同播期、镇压、灌水追肥等栽培措施对小麦倒春寒的防御效果。结果表明,柘城县倒春寒发生频繁且严重,发生时间主要集中在3月下旬。小麦受冻程度与栽培管理措施密切相关,灌水处理受冻株率较对照(未灌水)下降19.5个百分点,适期播种较早播下降7.3个百分点,春季镇压较对照(不镇压)下降2.9个百分点;小麦遭受冻害后,及时追肥灌水可有效缓解倒春寒对小麦的危害,追肥并及时浇水处理的受冻株率较不追肥不灌水处理下降13.0个百分点,增产达到61.1%。
译  名:
Preliminary Study on Characteristics of Late Spring Coldness and Its Defensive Measures in Wheat
作  者:
CHEN Xiang-li;LI Lin-feng;WANG Chong-feng;SHAO Rui-xin;Zhecheng Agricultural Bureau;Henan Agricultural University;
关键词:
wheat;;late spring coldness;;freezing injury;;effect;;cultivation measures
摘  要:
The lowest temperatures in March and April from 1990to 2013in Zhecheng county were collected from Zhecheng Agricultural Bureau,and were used to analyze the effect of late spring coldness on wheat yield and to determine the defensive effect of sowing date,suppress,irrigation and fertilizer application.The results indicated that the late spring coldness occurred frequently and severely in Zhecheng,and which mainly concentrated in late March.The degree of wheat freezing injury was strongly related to the cultivation and management measures.The rate of freezing plants in treatments of irrigation,suitable sowing time and suppressing in spring decreased by 19.5,7.3and 2.9percentage points,respectively,compared to without irrigation,early sowing time and no suppressing.In addition,the timely irrigation and fertilization after suffering late spring coldness could effectively reduce the cold damages of wheat,and the yield could increase by 61.1%.

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