搜索结果: 1-2 共查到“农学 Ambrosia artemisiifolia”相关记录2条 . 查询时间(0.05 秒)
PRACTICAL AND ECONOMIC EFFICACY OF AMBROSIA ARTEMISIIFOLIA L. SURVEILLANCE IN COMPLIANCE WITH THE INTERNATIONAL STANDARDS
common ragweed distribution infested area International Standard for Phytosanitary Measures invasive alien species surveillance
2014/2/21
Ambrosia artemisiifolia distribution in the Ukraine for the 1973–2013 period was analyzed. The infested areas were consequently grouped into 6 categories. Intense infestation in the region was the rea...
VARIATION IN RAGWEED (AMBROSIA ARTEMISIIFOLIA L.) POLLEN CONCENTRATION IN CENTRAL CROATIA, 2002-2003
aerobiology ragweed allergenic pollen pollen count
2010/12/23
The aim of the study was to determine the onset, duration and termination of the ragweed pollen season; intradiurnal, daily and monthly pollen variation, and possible differences in the occurrence and...