Field application of hyacinth (Eichharnia crassipes.), a strong nutrient accumulating plant Ecological Responses of Different Maturity Leymus chinensis Seeds to Soil Burial Depths in Songnen Grassland Effects of water supply volume and seed treatments on seedling emergence of Alhagi sparsifolia Effects of maize straw with Bt gene return to field on growth of wheat seedlings Cultivation Techniques for Seedlings of Ilex fargesii Effects of low temperature on the overwintering pupae and pupal postnatal development of Phyllonorycter ringoniella (Lepidoptera:Gracilariidae) The parasitism performance of parasitic wasp Trichogramma pintoi Voegele on the oriental fruit moth, Grapholita molesta (Busck) A Study on the Seed Vigour of Tall Fescue Impacts of Main Meteorological Factors on Emergence Rate of Carpomyia vesuviana Overwinter Generation Adult in Turpan Factors Impacting the Emergence Rhythm and Rate of Micromelalopha sieversi (Lepidoptera:Notodontidae) Effect of plant extracts and some pesticides on survival, emergence and para-sitism of the aphid parasitoids Aphidius gifuensis Ashmead and Diaeretiella rapae M‘Intosh