摘要
以露地小麦为对照,对膜上穴播和膜侧沟播两种模式进行比较研究。两地多年试验结果表明,起垄覆膜沟播模式在小麦生育期具有聚水、保墒、增温、透光等作用,是符合渭北自然条件的旱地小麦高产、稳产最佳模式;其微生境效应,除冬前增温效果没有膜上穴播模式明显外,其它诸如聚水保墒效果、土壤微生物数量、土壤养分吸收以及水分利用效率等均好于膜上穴播模式。
Experiments were conducted on Weibei dryland to investigate the effects of hole seeding on plastic film and furrow seeding beside plastic film, compared with unmulched drill seeding. The results showed that furrow seeding beside plastic film was an optimal planting pattern of dryland wheat which was beneficial for waterharvesting, waterconserving, temperature increase and light penetration. Compared with hole seeding, furrow seeding was more effective to improve soil moisture, increase soil microbe, promote soil nutrient absorption and raise water use efficiency. Film mulch may become an important technique to realize high and stable production of dryland wheat and to ensure food security in Weibei area.\;
出处
《干旱地区农业研究》
CSCD
北大核心
2003年第3期55-60,共6页
Agricultural Research in the Arid Areas