摘要
为探讨土壤和气候及其互作对烟叶物理性状的影响,在湖南烟区选择具有代表性的永州市、浏阳市、桑植县进行客土盆栽试验。结果表明:①不同物理性状指标受气候和土壤的影响强弱依次为单叶重、叶片厚度、平衡含水率、叶宽、叶长;其中,单叶重、叶片厚度、平衡含水率属中等变异强度,叶宽、叶长属弱变异强度。②土壤和气候及其互作效应对不同烟叶物理性状指标的影响不一样,叶长、叶宽、叶片厚度、单叶重主要受气候因子以及气候与土壤互作的影响,其中气候的影响最大,土壤影响可能性较小;平衡含水率主要受气候因子的影响,土壤以及气候与土壤互作的影响相对较小;气候对烟叶物理性状总变异贡献率为55.60%,土壤9.42%,气候与土壤互作为34.48%,气候是影响湖南烟区烟叶物理性状的关键生态因素。③大田生长不同时期的气候因子对烟叶物理性状影响的强弱不同,但都以地温影响最大。④土壤主要养分中全氮对烟叶物理性状影响最大;土壤中微量元素中有效钼对烟叶物理性状影响最大。
In order to investigate the effects of soil,weather and their interaction on the physical property of flue-cured tobacco,the pot experiments were carried out at Yongzhou,Liuyang and Sangzhi as representative tobacco growing areas in Hunan Province.The results showed：1）the physical properties in order of sensibility to weather and soil were single leaf weight leaf thickness equilibrium moisture content leaf width leaf length;among them,single leaf weight,leaf thickness and equilibrium moisture content were moderately sensible,leaf width and leaf length were less sensible;2）soil,weather and their interaction affected different physical properties differently;leaf width,leaf length,leaf thickness and single leaf weight were mainly affected by weather and the interaction,particularly by weather;equilibrium moisture content was mainly affected by weather,while the effects of soil and the interaction were relatively slight.The contribution ratios of weather,soil and their interaction to the variance of physical property were 55.60%,9.42% and 34.48%,respectively.Weather was the key ecological factor affected the physical property of tobacco in Hunan;3）the effects of weather were different at different growing stages,the biggest influence factor was ground temperature;4）the nutrient in soil which influenced the physical property most was total nitrogen,and the most influential minor element in soil was available molybdenum.
出处
《烟草科技》
EI
CAS
北大核心
2010年第2期48-54,共7页
Tobacco Science & Technology
基金
湖南中烟工业有限责任公司资助项目"土壤和气候及其互作对湖南烤烟品质的影响"(K200607)
关键词
烤烟
物理性状
气候
土壤
互作
Flue-cured tobacco Physical property Weather Soil Interaction
