diseases and insect pests 第1页

Prediction model of agricultural plant diseases and insect pests based on artificial neural network and its verification STUDY ON TECHNOLOGY OF MIXTURE OF INSECTICIDES AND FUNGICIDES TO CONTROL MAIN DISEASES AND INSECT PESTS OF WINTER WHEAT AT THREE PERIODS A study on growth of artificial mangrove forest and plant diseases and insect pests Changes of eco-environment of farmland and development of some crops diseases and insect pests A study on system optimum control to diseases and insect pests of rice in Shandong Primary investigation on the ecological technologies of prevention and cure on diseases and insect pests in protected vegetable production