摘要
在晋东豫西寿阳旱农试区连续5 年进行了多种方式秸秆还田与秋季深施肥配合定位试验,主要探讨秸秆还田秋施肥对旱地玉米产量、土壤肥力及水分利用效率的影响。结果证明,秸秆还田秋施肥较好的解决了深施肥与春季保墒促全苗以及秸秆腐解与幼苗争水争肥影响幼苗生长的矛盾,秸秆资源丰富的优势得到充分利用,土壤水肥状况得到明显改善。具体表现为玉米苗全苗壮,根系发达,植株叶片光合、蒸腾速率提高,玉米产量大幅度增长。同时维持了较高的土壤肥力。
The field experiment of various kinds of straw returned to field and the deep fertilization in autumn has been conducted for five years in Shouyang dryland experimental area of Shanxi Province. It explored the effect of straw returned to field and deep fertilization in autumn on the growth and yield of dryland corn as well as water use efficiency and soil fertility. The results showed that soil moisture and fertility was significantly improved. As a result , seeding was complete and strong with developed root. The rate of photosynthesis and transpiration were enhanced, the yield of corn raised markedly and in the meantime, maintaining higher soil fertility and productivity.
出处
《干旱地区农业研究》
CSCD
北大核心
1999年第4期10-15,共6页
Agricultural Research in the Arid Areas
基金
国家科技攻关资助
关键词
秸秆还田
秋施肥
旱地玉米
玉米
corn in dryland
straw returned to field
deep fertilization in autumn
