Studies on inducing plant disease resistance by alkaline pectinase
li zu-ming1; bai zhi-hui2; zhang hong-xun2; li hong-yu1; rong rui-fen1; ye lei1 (1. normal college; beijing union university; beijing 100011; china; 2. the research center for eco-enviromental sciences; chinese academy of sciences; beijing 100085; china)
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Studies on the weather monitoring and forecast technology of locust incidences in grassland of Northern China
bai yue-ming1; liu ling1; gao su-hua1; chen su-hua2; li feng-xia3; li xin-jian4 (1. chinese academy of meteorological sciences; beijing 100081; china; 2. inner mongolia ecological and agricultural meteorological center; huhhot 010051; china; 3. qinghai institute of meteorological science; xinin 810001; china; 4. (urumqi institute of desert meteorology; china meteorological administration; urumqi 830002; china)