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A high-efficiency irrigation method for flue-cured tobacco based on narrow plant and wide row cultivation

A flue-cured tobacco and high-efficiency technology, which is applied in the field of tobacco cultivation, can solve the problems of restricting application, reducing irrigation efficiency, and high water consumption, and achieving the effects of optimizing stomata opening, improving irrigation efficiency and reducing water consumption.

Active Publication Date: 2021-10-08
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of split-root alternate irrigation technology on flue-cured tobacco adopts "furrow irrigation", which reduces the transpiration water consumption of flue-cured tobacco to a certain extent, but the irrigation method of furrow irrigation itself consumes too much water, which greatly reduces irrigation efficiency, so it is not Not worth promoting
Moreover, in the water-saving irrigation mode, since the plant spacing of flue-cured tobacco cultivation (generally 50cm) is greater than the lateral distribution of flue-cured tobacco roots (not exceeding 40cm), it also limits the application of water-based alternate root irrigation technology in flue-cured tobacco production.

Method used

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  • A high-efficiency irrigation method for flue-cured tobacco based on narrow plant and wide row cultivation
  • A high-efficiency irrigation method for flue-cured tobacco based on narrow plant and wide row cultivation
  • A high-efficiency irrigation method for flue-cured tobacco based on narrow plant and wide row cultivation

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Effect test

Embodiment 1

[0042] In this embodiment, the row spacing of the flue-cured tobacco field is set to 130cm, the plant spacing is set to 35cm, the type of tobacco field is mountainous, and the amount of irrigation each time is 1.7m 3 / mu (1.5kg / plant), in the absence of effective precipitation, the flue-cured tobacco should be irrigated every 4 days during the rooting period, once every 2 days during the prosperous period, and once every 3 days during the mature period. Scoop water to irrigate. During the whole growth process of flue-cured tobacco, the application method of base fertilizer is ring application, and topdressing is application in holes.

Embodiment 2

[0044] In this embodiment, the row spacing of the flue-cured tobacco field is set to 133cm, the plant spacing is set to 36cm, the type of tobacco field is mountainous, and the amount of irrigation each time is 1.8m 3 / mu (1.6kg / plant), in the absence of effective precipitation, flue-cured tobacco once every 5 days during the rooting stage, once every 3 days during the prosperous period, and once every 4 days during the mature stage. The irrigation method is drip irrigation. During the entire growth process of flue-cured tobacco Among them, the application method of basal fertilizer was ring application, and topdressing was application in hole.

Embodiment 3

[0046] In this embodiment, the row spacing of the flue-cured tobacco field is set to 136cm, the plant spacing is set to 37cm, the type of tobacco field is mountainous, and the amount of irrigation each time is 1.9m 3 / mu (1.7kg / plant), in the absence of effective precipitation, the flue-cured tobacco should be irrigated every 6 days during the rooting stage, every 4 days during the prosperous period, and once every 5 days during the mature stage. Scoop water to irrigate. During the whole growth process of flue-cured tobacco, the application method of base fertilizer is ring application, and topdressing is application in holes.

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Abstract

The invention discloses a high-efficiency irrigation method for flue-cured tobacco based on narrow-plant wide-row cultivation, which adopts the method of alternate irrigation between plants, sets n tobacco seedlings to be planted in each row, and n is an integer greater than or equal to 7. There are m irrigation periods, m is an integer greater than or equal to 3; the mth irrigation: when m is an odd number, irrigate the center position between the first plant and the second plant, the center position between the third plant and the fourth plant, The central position between the 5th strain and the 6th strain...the central position between the n-3rd strain and the n-2th strain, the central position between the n-1st strain and the nth strain; when m When it is an even number, irrigate the center position between the 2nd and 3rd plants, the center position between the 4th plant and the 5th plant, the center position between the 6th plant and the 7th plant... the n‑th The central position between the 4th strain and the n-3rd strain, the central position between the n-2nd and the n-1st strain. Under the premise of ensuring the growth and development of tobacco plants, the invention reduces the amount of irrigation water for tobacco fields and improves the irrigation benefits of flue-cured tobacco.

Description

technical field [0001] The invention relates to the technical field of tobacco cultivation, in particular to a high-efficiency irrigation method for flue-cured tobacco based on narrow-plant and wide-row cultivation. Background technique [0002] The shortage of water resources is one of the key factors restricting the production of flue-cured tobacco. How to effectively use limited water resources and improve the efficient use of water and fertilizer by flue-cured tobacco through scientific cultivation management is an urgent problem to be solved. [0003] Alternate root irrigation is a management method that alternately irrigates on both sides of the root zone of crops. It adjusts the opening of stomata by stimulating the water absorption function of the plant root system and changing the soil moisture mode of the root zone section, reducing the "luxury" transpiration of the plant and improving Water use efficiency, so as to achieve the purpose of water saving, high yield a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/45A01G25/00
CPCA01G25/00A01G22/45Y02A40/22
Inventor 马二登张瑞勤李军营徐兴阳刘剑金胡志明高天贺彪殷红惠耿少武李江舟代块陶永萍孙军伟黄坤徐照丽邓小鹏童文杰赵正雄张晓海姜永雷
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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