threshold 第3页

Studies on Determining Control Action Threshold by Frass drop Amount of Sucra jujuba ECO-ECONOMIC PERID THRESHOLD FOR CONTROLLING BARNYARDGRASS (ECHINOCHLOA CRUS-GALL L ) IN SUMMER SOYBEANS A STUDY ON THE OPTIMIZED MANAGEMENT OF CHINESE PINE CATERPILLAR (DENDROLIMIUS TABULAEFORMIS) OPTIONAL PLANS OF BINOMIAL SEQUENTIAL CLASSIFICATION SAMPLING FOR MANAGEMENT DECISION MAKING OF THE ENGLISH GRAIN APHID (HOMOPTERA: APHIDIDAE):VALUE OF TALLY THRESHOLDS OF APHIDS IN SAMPLE UNITS Approach of evaluation on landscape protection along the Qinghai-Tibet Railway Effects of Jinmaitong capsule on nerve growth factor in diabetic rats