The Effect of Chicken Manure Biochar Organic Fertilizer on the Growth,Development and Quality of Tobacco
Using chicken manure biochar organic fertilizer as the material,the effects of different dosage and biochar application on the growth,development,and quality of Shangluo flue-cured tobacco were studied,in order to provide a theoretical basis for reducing the cost of using organic fertilizer in Shangluo tobacco area.In 2022,a community experiment was conducted on the application technology of chicken ma-nure biochar organic fertilizer in Luonan County,Shangluo City,Shaanxi Province.Six treatments were set up:T1[conventional fertilization+commercial chicken manure(450 kg/hm2)],T2[conventional fertilization+commercial chicken manure(900 kg/hm2)],T3[conventional fertilization+commercial chicken manure(1050 kg/hm2)],N1[conventional fertilization+70 chicken manure/30 biochar(750 kg/hm2)],N2[conventional fertilization+80 chicken manure/20 biochar(750 kg/hm2)]and N3[conventional fertilization+90 chicken manure/10 bio-char(750 kg/hm2)],with CK0(conventional fertilization,no organic fertilizer)and CK1(conventional fertilization+tobacco company set or-ganic fertilizer)as controls.The results showed that chicken manure biochar organic fertilizer could significantly improve the agronomic traits and disease resistance of tobacco plants;chicken manure biochar organic fertilizer increased the material accumulation of tobacco plants and enriched their organic elements;chicken manure biochar organic fertilizer significantly improved the economic traits of flue-cured tobacco.The combination of chicken manure and biochar was beneficial for improving the yield and quality of Shangluo flue-cured tobacco,among which N2 treatment[conventional fertilization+80 chicken manure/20 biochar(750 kg/hm2)]has the best effect on improving the growth and develop-ment of Shangluo flue-cured tobacco.
BiocharOrganic fertilizerTobaccoGrowth and developmentProduction quality