| 烤烟小苗膜下移栽膜内外温度关系研究 |
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| 引用本文： | 赵芳,杨军章＊.烤烟小苗膜下移栽膜内外温度关系研究[J].中国农学通报,2016,32(10):47-52. |
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| 作者姓名： | 赵芳 杨军章＊ |
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| 作者单位： | 云南省烟草公司昭通市公司,云南省烟草公司昭通市公司 |
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| 基金项目： | 中国烟草总公司云南省公司科技计划项目“提高温凉烟区烟叶可用性栽培技术研究”(2012YN55)。 |
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| 摘 要： | 为探索烤烟小苗膜下移栽适宜的破口温度及大小，为指导大田生产提供理论依据。笔者通过大田试验，比较了白、黑膜膜内外空气温度、塘底土壤温度及不同破口大小的温度变化。结果表明：随着田间空气温度的增加，膜内空气温度随之大幅度增加，白膜膜内温度均大于黑膜膜内温度。当田间空气温度低于20℃时，通过小苗膜下移栽改变烟苗生长环境可达到保温的作用；田间空气温度高于27℃时，膜内空气温度达到45℃时，应及时进行破大孔处理，以防高温灼伤烟苗。在环境温度可以保障烟苗生长需求的前提下，较早破口相对利于烟苗生长。
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| 关 键 词： | 农产品供应链 农产品供应链 品牌体系 运营 信用管理 策略 |
| 收稿时间： | 2015/8/31 0:00:00 |
| 修稿时间： | 2016/3/21 0:00:00 |
The Relationship Between Internal and External Temperature of Film for Transplanting Tobacco Seedlings Under Plastic Film |
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| Abstract: | The study aims to explore the suitable crevasse temperature and size of flue- cured tobacco seedlings transplanting under plastic film and provide theoretical basis for field production. Through field experiments, the authors compared internal and external temperature of white and black film, soil temperature and temperature change with different crevasse sizes. The results showed that the internal temperature increased with the increase of air temperature, and the temperature under white film was higher than that under black film. When the air temperature of field was below 20℃, transplanting tobacco seedlings under plastic film could keep a warm growing environment; when the field air temperature was higher than 27℃, the internal temperature under film reached 45℃, timely crevasse process should be conducted to prevent seedling injury caused by high temperature. In the premise that the environment temperature could guarantee the demand of tobacco seedling growth, early crevasse of the film was good for seedling growth relatively. |
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| Keywords: | flue- cured tobacco transplanting tobacco seedlings under plastic film internal and external temperature of film crevasse time crevasse temperature crevasse size |
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