秸秆和氮肥配合施用对高肥力植烟土壤理化性质的影响  

Effect of Wheat Straw on Physical and Chemical Properties in Fertile Soil Planted Flue-cured Tobacco

作　　者：付丽波[1] 王毅 瞿兴[3] 左天龙[3] 崔永和[3] 耿明建[4] 洪丽芳[1] 

机构地区：[1]云南省农科院土壤肥料研究所,昆明650205 [2]云南省红塔集团,玉溪653100 [3]云南省烟草公司玉溪支公司,玉溪653100 [4]华中农业大学资源与环境学院,武汉430070

出　　处：《华中农业大学学报》2004年第3期295-299,共5页Journal of Huazhong Agricultural University

基　　金：云南省烟草公司项目 (0 0A19);云南省科委"省院省校"项目 (Y0 0 84)资助

摘　　要：在高肥力植烟土壤上研究施用C/N高的小麦秸秆对土壤理化性状的影响。结果表明 :在烟株上、中、下部叶成熟期等 3个生育期 ,不同施氮水平下加秸秆处理可明显提高土壤 0 .2 5～ 10mm水稳性团粒数量 ,降低小于 0 .2 5mm小团粒数量 ,显著增加土壤水分含量 ,提高土壤 pH。同时 ,施用秸秆可显著降低烟株不同成熟期土壤中NH4 N和NO3 N含量 ,还使土壤有效钾明显上升 ,土壤P、Ca、Mg明显下降 ,S及B、Cu、Zn、Fe、Mn等元素有升高趋势。可见 ,高肥力植烟土壤上施用C/N比高的秸秆可以调控土壤养分供应 ,改善土壤理化性质。The soil physical and chemical properties were studied in fertile soil applying wheat straw with high ratio of carbon and nitrogen under the condition of cultivating flue-cured tobacco in Yuxi Yunnan Province. When 7 500 kg wheat straw was applied in 1 hm 2fertile soil planted flue-cured tobacco, the composition of water-stable aggregates, soil water and soil pH was increased more quickly,than no straw application in different development stages of tobacco at different level of nitrogen fertilizer application, such as 0, 30, and 60 kg N/hm 2. At the same time, the content of NH 4-N, NO 3-N and available K, S, B, Cu, Zn, Fe, Mn in the soil was improved, and available P, Ca, Mg was decreased.Those suggested that the application of wheat straw with high ratio of carbon and nitrogen in fertile soil might regulate the nutrients supply of soil, improve soil physical and chemical properties, be favorable to the betterment of output and quality of flue-cured tobacco.

关 键 词：烤烟 小麦秸秆 高肥力土壤 土壤理化性状 

分 类 号：S143[农业科学—肥料学] S151.9[农业科学—农业基础科学]