恩施州烟田养分输入、输出与平衡  

Analysis of soil nutrient input and output in Hubei Enshi’s tobacco growing field

作　　者：邓建强[1] 王瑞[1] 谭军[1] 赵晓超 

机构地区：[1]湖北省烟草公司恩施州公司,恩施445000 [2]湖北中烟工业有限公司物资采购中心,武汉430040

出　　处：《中国烟草学报》2013年第1期37-42,共6页Acta Tabacaria Sinica

摘　　要：对恩施州烟田养分平衡状况调查统计分析认为该区域养分表现为氮素基本持平,略有亏损,磷钾均有盈余,施肥上应遵循"适度增氮、稳磷钾"的原则。建议提高追肥比例和次数,后作经济作物,提高养分利用率,降低残留量;适度降低化肥投入比例,防止土壤酸化;提高有机肥配比,重视施用农家肥,培肥土壤;增强烟秆生物有机肥和绿肥的推广力度。Analysis of nutrient balance of tobacco field in Enshi was carried out. Result showed that： nitrogen was basically in equilibrium, while phosphorus and potassium were more than needed. Fertilization of Enshi tobacco-growing field should follow a principle of increasing nitrogenous fertilizer, stabilizing phosphate and potash fertilizer. Increasing topdressing ratio and the times, and cropping economic plants was suggested to improve nutrient utilization and reduce residue. Reducing chemical fertilizer input moderately can prevent soil acidification. Increasing organic fertilizer, especially manure, and applying tobacco straw bioorganic manure and green manures were proposed to realize tobacco-ecological nutrient circulation.

关 键 词：烟叶 养分平衡 养分评价 恩施 

分 类 号：S572[农业科学—烟草工业]