摘要
针对华北地区农业生产水平和农业干旱特点 ,于 1 996～ 1 998年进行了农业干旱监测预测、秸秆覆盖、底墒科学利用、有限水胁迫效应、深松、多功能防旱剂和有限灌溉等单项农业干旱防御技术试验研究 .在它们的防旱机理、功能和操作技术方面取得了较好的效果 .在此基础上 ,在干旱严重的 1 998～ 1 999年冬小麦生育期内 ,在河南郑州郊区、山东泰安郊区和河北固城 ,根据各地条件因地制宜地对上述技术进行组装配套集成示范试验 .结果表明 ,综合应用这些技术具有较显著的抗旱增产效能 ,小麦增产 1 0 .1 %～ 36.0 % ,耗水量减少 1 .0 %～ 1 9.0 % ,水分利用效率提高 1 0 .6%～ 60 .0 % .
In view of the agricultural productive level and agricultural drought characteristics in North China, experiments of several techniques for preventing agricultural drought such as agricultural drought monitoring and forecasting, straw mulch, scientific use of soil moisture before sowing, limited water stress, deep tillage, multi functional drought resistant reagents and limited irrigation were carried out in 1996-1998. Significant achievements are obtained in the mechanism, effect and operational skill of these drought resistance techniques. Based on the achievements and local conditions, integrated demonstration experiments on the techniques were made in Zhengzhou (Henan Province), Gucheng (Hebei Province) and Taian (Shangdong Province) during the severe drought winter wheat growth season from 1998 to 1999. The results indicate that drought resistance and yield increase were significant by using the composite techniques, with the winter wheat yield increasing by 10.1%—36.0%, the water use decreasing by 1.0%—19.0% and the water use efficiency increasing by 10.6%—60.0%.
出处
《应用气象学报》
CSCD
北大核心
2000年第A06期103-111,共9页
Journal of Applied Meteorological Science
基金
"九五"国家科技攻关项目!"农业气象灾害防御技术研究"96-0 2 0 -0 1 -0 1专题资助
关键词
农业干旱
综合应变
防御技术
集成示范试验
Agricultural drought Composite response Preventing techniques Integrated demonstration experiments Yield increase
