Statistic classification of winter wheat growth conditions by using NOAA satellite information Study on Stimulation Model of Growth Condition of Cymbidium hybridum Vegetative Growth Period Based on Production of Thermal Effectiveness and PAR Effects of Cadmium Stress on Seedlings Growth and Active Ingredients in Salvia miltiorrhiza Isolation,Identification and Cultivation of Ectomycorrhizal Fungus Handkea utriformis in the Rhizosphere of Pinus tabulaeformis Study on Stimulation Model of Growth Condition of Cymbidium hybridum Vegetative Growth Period Based on Production of Thermal Effectiveness and PAR