摘要
烟草地膜覆盖栽培,在我省4、5月份可使土壤(0~30厘米)水份由19.76%提高到25.7%,0~20厘米平均气温提高2.7℃,土壤速效养分含量也有所增加。在春旱情况下可使移栽成活率提高53%以上,而且烟株生长健旺,发育提前,延长了适宜的采收期,可增产烤烟9.9~18.3%,平均每亩纯收入可增加38.67元,品质改善。烟碱含量提高,利于优质烟的栽培,对我省较高海拔地区烟草生产的发展更有重要意义。
Soil moisture (0-30cm) of tobacco land can be raised with plastic mulching on from 19.76-25.7% in April and May in the province while the soil temperature (0-10cm) can be increased by 2.7℃. Content of available minerals can also be increased more or less.Seedling survival rate has increased by oxer 53.0% when transplanted in early spring. Plants are stout and vigorous with an early development and extented harvest span. The yield of cured tobacco increased by 9,9-18.3% which makes up the pure income of 38.67 yuan per mu. Tohacco quality is improved and nicotine content increased, which is favorable to produces quality tobacco. Plastic mulching is of even greater significance in tobacco production in the areas of higher elevation in the province.
出处
《贵州农业科学》
CAS
1990年第3期17-21,共5页
Guizhou Agricultural Sciences
基金
本项研究为农业部"七五"重点科研项目<南方红(黄)壤区域农业任务>内容之一
关键词
烟草
地膜覆盖
抗旱栽培
drought-resistant
F arming
plastic mulching
tobacco