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    Diagnosis of Crop Disease,Insect Pest and Weed Based on Image Recognition
    基于图像识别的作物病虫草害诊断研究
    Relationship Between Agricultural Environment and the Growth and Decline of Crop Insect Weed Communities in Farmland Ecosystem.
    农田生态系统中作物—昆虫—杂草的消长与农业环境
    Research on Recognizing Weed From Corn Seedling by Using Computer Image Processing Technology
    应用计算机图像处理技术识别玉米苗期田间杂草的研究
    Effects of enhanced UV-B radiation on population quantity dynamics of weeds,soil macroanimals and wheat aphids in the wheat field ecosystem
    增强的UV-B辐射对麦田生态系统中种群数量动态的影响
    The Study on the Isolation and Weed-controlling Activity of Pathotoxin Produced by Stemphylium botryosum
    葱叶枯病菌 Stemphylium botryosum毒素的分离与除草活性研究
    Analyses on relationship of 58 weed species with 6 soil heavy metal elements in Jinhua suburb
    金华郊区58种杂草分布与土壤6种重金属元素关系的分析
    Spatial Distribution Characteristics of Weed Species Diversity in a Watershed Ecosystem in Southern China's Hilly Area
    南方丘陵区小流域生态系统杂草物种多样性的空间分布特征
    The Research of Identifing Field Weed by Applying Machine Vision Technology
    应用机器视觉技术识别田间杂草的研究
    The system of weed recognition in real-time
    麦田杂草的实时识别系统研究
    Effect of Free-Air CO_2 Enrichment(FACE) on Root Growth of C_3 Crop(Rice,Oryza sativa) and C_4 Weed(Barnyardgrass,Echinochloa crusgalli).
    大气CO_2浓度升高对水稻和稗草根系生长的影响
    Agricultural weed differentiation expert system base on web
    基于INTERNET的农业杂草鉴别专家系统
    Studies on the Structure and Dynamics of Arthropod Community in the Weed Habitat of Rice Ecosystem
    稻田生态系统杂草地生境节肢动物群落结构及其动态研究
    Molecular Characterization of Geminiviruses and Their Associated DNAβ Molecules Infecting Crops and Weeds in Yunnan
    云南省几种作物及杂草上双生病毒及伴随的DNAβ的分子鉴定
    2. In different types of jujube orchard, the number of individual and species of different function group (total arthropod, phytophagy, natural enemy) was carried on the analysis of variance (the Duncan law): the number of individual and species of different functional group in the weed -jujube-orchard were remarkably more than the grass -jujube-orchard (P<0.05);
    2.对不同类型枣园的不同的功能集团(节肢动物、植食性、天敌)的物种数和个体数进行方差分析(Duncan法)结果表明:杂草枣园的不同功能团的物种数、个体数显著多于间作牧草枣园(P<0.05);
    In comparison with nonrice-cotton otation, the net economic income of rice-cotton rotation increased 10.96%-14.50% and the amount of weeds and incidence of crop disease dropped obviously.
    与未稻棉轮作的相比,稻棉轮作的经济纯收入增加10.96%—14.50%,田间杂草和作物病害大为减少。
    2.During the field experimentsthe minimum temperaturps of一9.8℃in 1991.and一4.3℃in 1993 in Nanchang region,oc-curred but in March and April of the following years adult leaf beetle individuals were found inthis weed when it hegan to grow.
    2.田间试验,江西南昌地区,在1991年12月29日出现年极端低温为一9.8℃,1992年1月15日又出现一次年极端低温为一4.3℃。
    In addition, weed contents in the paddy field decreased by15%— 50% compared with the control.
    稻-萍-蟹1、2、3处理杂草量比对照分别下降了25%、50%、15%;
    The results indicated that the largest number of arthropod species and the least number of individuals were in the treatment with weeds (P<0.05), and the least number of arthropod species and the largest number of individuals were in the treatment without weeds (P<0.05).
    植食性类群的物种数和个体数在单作无杂草的枣园显著(P<0.05)大于其间作类型的枣园,而捕食性和寄生性的物种数和个体数则明显(P<0.05)小于其间作类型的枣园,而在有杂草的枣园则相反。
    THE DIVISION OF FIELD WEEDS IN GANSU
    甘肃省农田杂草区划
    Development of a Computer-aided Weed Chemical Control Expert System WCES
    化学除草计算机专家系统WCES的研制
 

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