河南农业科学2017，Vol.46Issue(10)：54-59,6.DOI:10.15933/j.cnki.1004-3268.2017.10.010
不同前作对紫色植烟土壤微生物数量、养分及烤烟产质量的影响
Effect of Preceding Crops on the Microbial Biomass and Nutrients in Purple Soil, and Yield and Quality of Flue-cured Tobacco
摘要
Abstract
In order to appropriately arrange the preceding crops for flue-cured tobacco production,and improve the yield and quality of tobacco in purple soil,Chuxiong,Yunnan,the effect of preceding crops,including Chinese cabbage,barley and broad beans on agronomic characteristics,economic traits,changes of soil microbial biomass and nutrients were evaluated.The results showed that:The effect of different preceding crops on the agronomic characteristics and yield and quality of flue-cured tobacco were obvious.The plant height,the leaf area coefficicnt,the yield per mu,the value per mu and the proportion of upper-grade tobacco leaves were highest in the preceding crop Chinese cabbage treatment.However,the effect of preceding crops on leaf chemical properties were not significant.The effect of preceding crops on the change of the number of actinomycetes,nitrogen-fixing bacteria,potassium bacteria,phosphate-solubilizing bacteria and phosphate-solubilizing fungi were various.In vigorous growth period (40 d after transplanting to first priming),the number of actinomycetes,potassium bacteria,phosphate-solubilizing bacteria and phosphate-solubilizing fungi was increased in broad beans treatment;the number of actinomycetes,nitrogen-fixing bacteria,phosphate-solubilizing bacteria and phosphate-solubilizing fungi was decreased in Chinese cabbage treatment;the worst performance was in barley treatment.The effect of different preceding crops on soil nutrient change was various,soil organic matter and available nutrients were best in broad beans treatment.To sum up,the index of soil microbial and soil nutrients was best in preceding broad beans treatment.This conclusion provides a good guide for the tobacco crop rotation system in purple soil.关键词
烤烟/前作/紫色土/微生物/产质量/土壤养分Key words
flue-cured tobacco/preceding crops/purple soil/microbe/yield and quality/soil nutrients分类
农业科技引用本文复制引用
段玉琪,胡小东,晏飞,龙伟,邹聪明,冀新威,王涛,宋鹏飞..不同前作对紫色植烟土壤微生物数量、养分及烤烟产质量的影响[J].河南农业科学,2017,46(10):54-59,6.基金项目
国家自然科学基金项目(41601330) （41601330）
国家烟草专卖局项目(110201302016) （110201302016）
云南省烟草公司项目(2013YN11,2015YN05,2016YN28,2016YN31) （2013YN11,2015YN05,2016YN28,2016YN31）
