摘要
通过剖析影响河西地区小麦生产的主要灾害性农业气象因素及病虫害流行规律,从扬长避短,趋利避害,改善生存环境的角度出发,把种植冬小麦与春小麦进行了比较,认为该地区扩种冬小麦有其特殊的生态效益:1延长植被覆盖期,弱化沙尘暴,减少土壤风蚀;2缩短轮灌周期,调节供水压力;3减轻干热风和小麦吸浆虫为害,提高产量;4调整种植结构,提高土地利用率和产出率;5优化品种布局,改善小麦品质。并总结提出了目前亟待解决的关键技术及发展对策。
This paper analysed the disasterous atmospheric factors and the prevalent pattern of disease and insect pest in agriculture on affecting winter wheat production in west area of Gansu. In order to avoid disaster, take advantage of benefit ,the article compared winter wheat with spring wheat in planting pattern. The result showed that expanding planting winter wheat had a special eco-benefit in Hexi region ①Lasting the period of regeneration coverage , weakening sandstorm , decreasing soil erosion ;②Shortening irrigation cycle ,adjusting the pressure of supply water;③Relieving wheat harm of xerothermic wind and Sitodiplosis mosellana, improving production;④Adjusting plant structure ,increasing soil utilization and productivity;⑤Optimizing crop varieties distribution , improving wheat quality. In addition , the article put forward the key technology and development measures which are in great need of be solved .
出处
《西北农业学报》
CAS
CSCD
2004年第4期93-97,共5页
Acta Agriculturae Boreali-occidentalis Sinica
基金
甘肃省农业生物技术研究与应用开发项目--早熟丰产抗病冬小麦生物技术育种
