华南农业大学学报2017，Vol.38Issue(3)：26-31,6.DOI:10.7671/j.issn.1001-411X.2017.03.005
与化肥配施的菌肥用量对土壤肥力特性的影响
Effects of application dosages of bacterial manure with chemical fertilizer on soil fertility
摘要
Abstract
[Objective] To find a suitable ratio of bacterial manure and chemical fertilizer, and guide fertilizing in tobacco field in Nanxiong area, Guangdong Province.[Method]Bacterial manure was prepared by fermenting organic manure with beneficial microbial strains including nitrogen fixation and phosphate-solubilizing bacteria (Azotobacter sp.x34), potassium dissolving bacteria(Bacillus sp.jb21)and photosynthetic bacteria (Rubrivivax gelatinosus sbg11).Treatments with different dosages of bacterial manure, including CK (water), T1 (chemical fertilizer), T2 (low dosage of bacterial manure + chemical fertilizer), T3 (medium dosage of bacterial manure +chemical fertilizer) and T4 (high dosage of bacterial manure + chemical fertilizer), were applied to the tobacco field.The ratio of base manure to topdressing for each plant was 1∶1.Low, medium and high dosages of bacterial manure were corresponding to 10, 20 and 40 g of base manure per plant respectively.All treatments were the same in their total nitrogen, phosphorus and potassium contents.[Result]Under the field condition, the treatments with both bacterial manure and chemical fertilizer effectively increased the soil organic matter contents, significantly increased the contents of alkali-hydrolysable nitrogen, available phosphorus and available potassium in soil, improved soil respiration intensity, effectively increased the number of bacteria and actinomycetes in soil, and reduced the number of fungi.[Conclusion]The medium dosage (20 g base manure and 20 g topdressing) of bacterial manure applied in the T3 treatment has the best effects, which is the recommended dosage of the bacterial manure.关键词
菌肥/施用量/烟草/土壤肥力/土壤微生物Key words
bacterial manure/application dosage/tobacco/soil fertility/soil microorganism分类
农业科技引用本文复制引用
杨盼盼,蒋慧敏,蒲强,刘丽辉,谭志远,余琛韵,谭祺慧,彭桂香..与化肥配施的菌肥用量对土壤肥力特性的影响[J].华南农业大学学报,2017,38(3):26-31,6.基金项目
国家自然科学基金(31370052) （31370052）
广东省自然科学基金(2014A030313459) （2014A030313459）
广东省烟草专卖局项目(粤烟科[2012] 26号,粤烟科201402) （粤烟科[2012] 26号,粤烟科201402）
