Abstract

Info

Title:: Effect of Biogas Slurry of Chicken Manure Mixed With Tebuconazole Reduction on Botryosphaeria dothidea and Apple Quality

Author(s):: WANG Hongtao1; 2; QU Henghua3; WANG Yingzi1; 2; LUAN Binghui1; WANG Peisong1; (1.Yantai Academy of Agricultural Sciences,Yantai,Shandong 265500;2.College of Agronomy,Yantai University,Yantai,Shandong 264005;3.Yantai Fruit and Tea Workstation,Yantai,Shandong 264001)

Keywords:: biogas slurry of chicken manure; tebuconazole; apple ring rot; field efficacy; quality

Abstract:: ‘Fuji’ apple trees were taken as the test materials,the effect of different concentration biogas slurry of chicken manure‘New Status’mixed with less tebuconazole than conventional dosage on Botryosphaeria dothidea and apple quality were investigated in the field during 2016—2017.The results showed that,the control effect of the mixture（containing 100-500 fold of chicken manure biogas slurry and 10%-20% less tebuconazole than conventional dosage）in against Botryosphaeria dothidea was corresponds to the conventional dosage of tebuconazole.Furthermore,compared with the blank control,spraying different concentration of chicken manure biogas slurry improved the apple fruit quality,the vitamin C,soluble solids,total soluble solid/titratable acidity increased by 12.27%-20.93%,3.19%-11.57% and 25.34%-40.70%,respectively,the titratable acid was reduced 12.90%-21.21%.In the prevention and control of apple ring rot,adding diluted 300 to 500 fold biogas slurry of chicken manure in the bactericide solution make the dosage of 43% tebuconazole SC reduce by 10%-20%.