THE EFFECT OF Azolla ON NITROGEN BALANCE IN PADDY FIELD Pulsed Electric Field Treatment for Inactivation of Escherichia coli Phage Effects of combined application of organic manure and chemical fertilizerson N2O emission from greenhouse vegetable soil Effects of interaction between density and nitrogen on the yield,quality andnitrogen use efficiency of watermelon in gravel-mulched field Characteristics of dry matter accumulation and N, P and K assimilations of trelliscultivated melon under different fertility rates Proliferation of algae and effect of its on fertilizerN immobilizationin flooded paddy field Nutrient characteristics of four kinds of winter green manure and their influences on soil mineral nitrogen before incorporation Effects of nitrogen fertilization on grain yield and nitrogen use efficiency of double cropping rice Effects of regulates phosphorus and potassium on rice yield and nutrient absorption Evolution characteristics of soil nutrients in the main rice production regions, the middle-lower reach of Yangtze River of China Effects of the salinity of irrigation water on soil ammonia volatilization in drip-irrigated cotton fields Effects of different ameliorant measures on the chemical and physical properties of soil in acid sulfate paddy field and rice yield Effects of different nutrition management on vegetable growth and runoff characteristics of soil nitrogen in perennial vegetable field EFFFECTS OF AILEIOCHEMICALS FROM AGERATUM CONYZOIDES ON THE FIELD POPULATION OF DIAMONDBACK MOTH (DBM), PLUTELLA XYLOSTELLA STUDY ON THE OCCURRENCES AND CONTROL TECHNIQUES OF STRIPED FIELD MOUSE IN FIELD PREVENTING THE OCCURRENCE OF RAPESEED STEM ROT BY CONTROLLING THE APOTHECIA ON THE FIELD RIDGES A STUDY ON THE MODEL EXPERIMENT OF ORIENTATION AND THE EFFECT OF SHELTERBELT LATTICE IN HUANG-HUAI-HAI PLAIN The Selection and Breeding of Super Poplar Clones as Fibre Timber Resistant to Batocera horsfieldi Studies on the Inhibition of Prothiofos to Acetylcholinesterase and Its Toxicity and Field Effect to Setora postornata Vegetation Development on Tropical Abandoned Fields, Hainan Island, China Weed Species Niche in Wheat Fields in Jinhua, Zhejiang Province Ecological Risk Assessment of Transgenic Plant Effects of 8 years of conservational tillage on rice yield and soil physical, chemical and biological properties Effect of enhanced UV-B radiation on CH4 emission from paddy field in Yuanyang Hani Terraces Loop-mediated isothermal amplification of single pollen grains N fertilization regulates the response of soil nematode communities to elevated O3 in a wheat field Comparative study on the digestive enzyme activities between golden apple snails (Pomacea canaliculata) and local field snails (Cipangopaludina chinensis) Plant‘s diversity of different vegetation types Comprehensive evaluation of eco-economic benefits of multi-crop rotation in paddy field systems Effects of nitrogen addition on above-standard Cd-contaminated soils in vegetable fields Analysis of the fungal community in continuous cropping cotton field of Xinjiang using 18S rDNA-PCR-DGGE Effect of global warming on climate feasibility index and available field days of flue-cured tobacco Effects of land abandonment on soil aggregate and organic carbon stability in cold waterlogged paddy fields Nitrogen use efficiency in stereoscopic planting rice field in North China Effect of nitrate leaching of winter wheat field based on straw application in the Yellow River irrigation area of Ningxia Identification of Polyphasic Taxonomy for a Chelatococcus sp. HB-4 THE SPIDER COMMUNITY AND ITS DIVERSITY IN COTTON FIELDS A STUDY ON THE MAIN CHARACTERS OF YIELD AND QUALITY OF CORN IN A SHELTER-BELT NETWOK ECOFIELD THE SPATIAL DISTRIBUTION OF THE SYNTHETICAL ECOLOGICAL EFFECT OF PLANT INDIVIDUALS UNDER SEMI-ARID ECOLOGICAL CONDITIONS Multivariate regression analysis of greenhouse gas emissions associated with activities and populations of soil microbes in a double-rice paddy soil The influence of freshwater-saline water mixing on phytoplankton growth in Changjiang Estuary The Optimization to Sterilize Escherichia coli With High Pulse Electric Field Analyzation on Genetic Variations Associated With Cr(VI) Removal Between two Bacillus atrophaeus Strains Applied PFGE Technology Effect of Mixed High-energy Particles Field on Corn Seedling Growth and the Activity of Antioxidant Enzymes Effects of long term fertilization on phosphorus pools and forms in yellow paddy fields of southern China NH3 and N2O emission and nitrogen loss rate from biogas liquid produced by pig slurry after topdressing on vegetable fields Evaluation of crop rotation system sustainability in slope land under long-term chemical fertilization based on geometry method Effects of chemical fertilizer and straw return on soil fertility and spring wheat quality Effects of long-term phosphorus fertilization on quality and starch RVA characters in sweetpotato Efficiency analysis of slow/controlled release fertilizer on wheat-maize in North China Reconsideration of saturated D-optimal design 草莓离体无性繁殖的研究——Ⅱ.试管苗移栽和田间表现 EFFECTS OF MAGNETIC FIELD ON PHYSIOLOGICAL FUNCTION OF WHEAT AND ON ITS PROTECTION FROM O_3 INJURY Features of Population Ecological Quantity Field of Castanopsis fabri Community in Jinggang Mountain Meso-Scale Experimental Investigation and Strain Fields Analysis of Tensile Tests on Microtomed Slices of Picea jezoensis var. microsperma Sample The improved model of plant ecological field and the case analyzing PROGRESS IN THE STUDIES ON GENETICALLY MODIFIED ORGANISMS,AND THE IMPACT OF ITS RELEASE ON ENVIRONMENT A PRELIMINARY STUDY ON ECOLOGICAL ORBITAL THEORY ——DISCUSSIONS ON PHYSICAL ESSENCE OF ECOLOGY VERTICAL DISTRIBUTION OF CHAETOGNATHS IN THE EAST CHINA SEA IN SUMMER OF 1978 Effects of Mulching Time and Methods on Soil Hydrothermal Status and Potato Yield on Rain-fed Field Biological Effects on Perilla frutescens Seed Treated with Magnetic Field Effective Time of the Effect of Electric Field on Germination of Oil Sunflower Seeds Effects of Different N, P and K Ratios and NAM on Growth, Quality and NutrientUtilization of Watermelon Mulched with Gravel in Semiarid Area EFFECTS OF VARIOUS MAGNETIC FIELDS AND CULTURE MEDIUMS ON CALLUS INDUCTION FROM Arabidopsis SEEDS New Material of Volvocales from Wuhan, China Differential geometry expression and analysis of regionalized variables of typical pollutants concentration in terrestrial environment Effects of labor-saving rice cultivation modes on the diversity of potential weed communities in paddy fields Effect of iron slag adding on methane production, oxidation and emission in paddy fields Effect of elevated CO2 on methanotrophs in the rhizosphere of rice plant Spatial variability characteristics of soil nutrients in tobacco fields of gentle slope based on GIS Characteristics of temperature field, humidity field and their eco-environmental effects in spring in the typical valley-city A review on the application of remote sensing in mangrove ecosystem monitoring Research and implementation of mobile data collection system for field survey of ecological environment Research of padded film for afforestation in coastal argillaceous saline-alkali land Simulation and evaluation of groundwater seepage in contaminated sites: case study of TuoCheng County Temporal and spatial distribution of phytoplankton in Liusha Bay Effects of different winter covering crops cultivation on methane (CH4) and nitrous oxide (N2O) emission fluxes from double-cropping paddy field STUDIES ON THE DYNAMICS OF FIELD POPULATION OF ROSE GRAIN APHID THE RELATIONSHIP BETWEEN THE DOMINANT SPECIES OF MICRYPHANTID SPIDERS IN PADDY FIELD AND ENVIRONMENTAL CONDITIONS STUDY ON SPECIES LAW OF LIFE AND INTEGRATED CONTROL OF CRICKETS IN PEPPER FIELDS