摘要
选择大理州有代表性的5种植烟土壤,以不施肥、正常施肥、施有机―无机肥3种处理对土壤速效氮及烟叶品质的影响进行试验研究。结果表明,不施肥时,5种植烟土壤除剑川海虹红壤肥力高外,弥渡苴力红黄壤、弥渡新胜红砂壤、巍山柏枝树紫色士、祥云小桥红胶泥土则需施肥来补充。在同一施肥量下,土壤速效氮含量高,烟叶中总氮含量高。5种植烟土壤合理施用有机―无机肥,表现出前期氮素供应低于施用化肥处理,但并不表现出氮素供应滞后的现象。速效氮含量高且质地粘重的土壤,只有适当降低施氮量,才能保证烟叶的产质量。
In order to investigate the effect of fertilizer application on the effect of soil nitrogen and flue-cured tobacco leaf quality in Dali, Yunan province, field experiments were conducted with three treatments （control, chemical fertilizer, organic-inorganic fertilizer） on 5 representative soils in Dali. The result showed that red soil of Haihong had high fertility, thus fertilizer application was not required. Red yellow soil of Zuli, red sand soil of Xinsheng, purple oil of Bozhishu and red clay of Xiaoqiao needed to apply fertilizer to ensure tobacco growth. At the same fertilizer rate, the higher the soil available nitrogen, the higher the total nitrogen of tobacco leaves. Nitrogen supply was lower in the treatment of organic-inorganic fertilizer application at the 5 soils than chemical fertilizer treatment in early growth stage, but N deficiency was not observed for both treatments. For the soils with high available nitrogen and heavy texture, it is necessary to reduce nitrogen fertilizer application to ensure the yield and quality of tobacco.
出处
《中国烟草科学》
CSCD
2008年第6期43-48,共6页
Chinese Tobacco Science
基金
云南省烟草公司科技项目(07A05)
关键词
土壤
速效氮
烤烟
soil
available nitrogen
flue-cured tobacco
