摘要
本项实验研究(1988—1991)通过田间试验、饲喂试验和农牧结合的生态农业实体运营,使农田亚系统的氮肥利用率达到56.9％,磷36.3％,整个农牧复合系统的养分回收率氮49.9％,磷37.6％,比单一种植业的利用效率提高10—20个百分点.这在太行山前平原资源节约型生态农业建设中。是一种高效益的生态农业示范模式,生产上已开始推广应用。
The results from field experiments,animal feeding experiments and comprehensive agro-husbandary entities showed that the nutrient recovery rate for the whole a-gro-husbandary ecosystem reached 49. 9% for N and 37. 6% for P, in farmland sube-cosystem nutrient use effeciency was 56. 9% for N and 36. 3% for P, which were 10-20% higher than in single cropping system. It was suggested that this agro-husbandary ecoagricultural model be appropriate for development of resource-saving eco-agriculture in the plain located in front of Mountain Taihang.
出处
《生态农业研究》
CSCD
1993年第4期37-42,共6页
Chinese Journal of Eco-agriculture
基金
中国科学院石家庄农业现代化研究所所长基金
