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Wysłany: Czw 13:10, 27 Sty 2011
Temat postu: tory burch outlet Peach drought, cold _1223 Prelim
Peach drought, cold Preliminary Report
WENYuan, WEIZhiguo: ScientificandTechnicalPopularizationforForestryofZhangyeCounty,
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, GansuProvince, 73400; WEIZhiguo: ColdandAridRegionsEnvironmentalandEngineeringRe-searchInstitute,
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, ChineseAcademyofSciences, LanzhouAbstract: Determinationbyconductimetryandtissuedrimetryshowedthedroughthardnessandcoldresistanceof12peachvarietiesinorderbeing: Zhongqiuhong> Ruiguang4> Laishanmi> Abubai> Shahongtao> Hongfurong> Ruiguang18> Liqiu> Qiannianhong> Ruiguang28> Ruiguang22> Ruiguang27. Keywords: peach, droughthardness, coldresistance subtle}}} against apple leaves early and effective disease prevention and control of pharmaceutical Apple with Bordeaux mixture early leaf disease, is often difficult to effectively control the occurrence of disease and damage. Through testing,
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, screening out of the control effect is better than Bordeaux mixture in the type of chemicals and appropriate concentration. Test in low-lying, high water table, the incidence of apple orchards were heavy. Red Star for the new varieties and 10 years old. Experiment with 10 treatments: �� 1:3:200 Bordeaux mixture times; �� 70% manganese WP B (double pesticide factory in Chengdu) 400 times; �� 70% Mancozeb WP (Xinyi Limin Chemical Plant ) 400 times; �� 5% bacteria Du Qing (Shandong green Chemical Co) 500 times; �� 5% bacteria Du Qing (chemical plant in Jiangyin County) 500 times; �� Po Lai WP (Japan) 1000 times; �� 10% WP Lai Bao 1,500 times; �� 50% Iprodione WP (French made) 1000 times; �� 50% Iprodione WP 1500 times; �� water (control). Plant community, order, repeated 3 times, each dealing with protection of the line are located. Spraying date is May 11, May 27, June 12 and June 29, with the pedal to the high-pressure sprayer rinse-shaped spray. Drug ago (May 11) and after the drug (July 6) were randomly survey the district rate and disease index of infected leaves, calculated control effect. Disease grade criteria for the classification: 0, leaves without lesions; 1, leaves have scattered small lesions; 2, leaf area, leaf lesion area accounts for 1 / 4; 3, leaf area, leaf lesion area accounting for 1 / 3 ; 4, total leaf area of leaf lesion area 1 / 2 or more. Tests showed that on July 6, the control rate of 64.79% area diseased leaves than before treatment increased 7 times, the disease index of 18.68, an increase of more than 8.5 before treatment times. For the best control effect in drug test is 50% Iprodione times and 10% of the 1000-1500 1000-1500 Bao Lai times as high as 88.02% control efficiency 90.12% and 83.85% for a one 88 .4%. 70% B followed by 400 times and manganese WP Mancozeb 70% WP 400 times, respectively, 69.60% control efficiency and 59.87%. More than 4 agents on disease control efficacy of early leaves are better than Bordeaux mixture (control efficiency 43.20%). But 5% of the two strains producing 500 times the anti-virus clean and Bordeaux are not effective, consistent with the report, subject to further experimental verification. Test showed that the tested 4 times continuous administration of several fungicides can control the different levels of early apple leaf disease from occurring, which iprodione, Po Lai control effect of the best, followed by manganese and maneb B zinc. Xuzhou disease prevention and treatment of early leaves in early May should be from the early onset, medication every 15 days or so 1 for 4 times, can effectively control the disease occurred. To prevent the bacteria resistance,
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, the proposed alternate use of different agents. Hanxue Yan, Zhang Wei (Xuzhou City, Jiangsu Province, orchards, 221008) 3
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