摘要
论述了旱区保护性耕作技术的发展历程及研究现状,并提出了目前生产应用中存在的一些问题:(1)低的地温易造成作物出苗困难;(2)草虫病害较重;(3)农机农艺配套性差;(4)播种、施肥质量不高。分析认为,保护性耕作技术对防风固土、减少土壤蒸发、降低土壤pH值和有效地改良盐碱地具有重要的作用。在对现有问题深入研究的基础上,通过技术创新和集成示范其应用前景仍十分广阔。
The developing course and current situation of research on protective tillage techniques in arid areas are expounded and some existing problems are pointed out, such as： low soil temperature may restrain crop emergence; weeds, pests and diseases are serious; the match of tillage techniques and farm machinery is not good enough; and the quality of sowing and fertilizing needs to be improved. However, it is considered that protective tillage play an important role in preventing wind, fixing soil, reducing soil moisture evaporation, reducing soil pH value and improving the quality of saline - alkali soil, which has a broad prospect of application through technical innovation and integrated demonstration based on further efforts in solving the existing problems.
出处
《干旱地区农业研究》
CSCD
北大核心
2009年第1期119-121,共3页
Agricultural Research in the Arid Areas
基金
十一五国家“863”项目“山西半干旱区现代节水农业技术研究与集成”(2006AA100220)
十一五国家科技支撑计划项目“农田水分生产潜力及适度开发研究”(2006BAD29B01)
国家科技基础条件平台建设项目“农业科学数据共享中心”(2005DKA31800)
关键词
保护性耕作
研究进展
应用前景
旱区
protective tillage
advance in research
prospect of application
arid area
