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Water-saving and fertilizer-saving seedling raising method for under-film tobacco seedlings

A tobacco seedling and fertilizer-saving technology, which is applied to tobacco cultivation, fertilization devices, fertilizer mixtures, etc., can solve the problems of reducing the stress resistance of transplanted tobacco plants, not getting strong seedlings, and waste of resources

Pending Publication Date: 2020-10-30
YUNNAN AGRICULTURAL UNIVERSITY +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the nursery period is the critical period for the nutrient absorption of tobacco seedlings. Too much fertilizer may reduce the stress resistance of transplanted tobacco plants, and too little fertilizer will affect the growth of tobacco seedlings and fail to obtain strong seedlings.
However, in the current water and fertilizer management methods carried out in accordance with relevant standards, the amount of water and fertilizer is relatively large, which can meet the requirements of strong tobacco seedlings and field transplanting. Risk of polluting the land environment

Method used

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  • Water-saving and fertilizer-saving seedling raising method for under-film tobacco seedlings
  • Water-saving and fertilizer-saving seedling raising method for under-film tobacco seedlings
  • Water-saving and fertilizer-saving seedling raising method for under-film tobacco seedlings

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Experimental program
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Effect test

Embodiment 1

[0074] Embodiment 1: the water-saving and fat-saving seedling raising method of the small seedling tobacco seedling under the film

[0075] The implementation steps of this embodiment are as follows:

[0076] A. Substrate loading

[0077] The substrate produced by Dali Sunshine Substrate Factory is moistened with tap water to make its water content reach 30% by weight, and then fill the seedling hole;

[0078] B. Sowing

[0079] When the seedling age is 37 days and the transplanting time is 1 day, the sowing time is 1 day. According to 1 coated tobacco seed per hole, the Honghua Dajinyuan coated tobacco seeds sold by Yuxi China Tobacco Seed Co., Ltd. are sown to the sowing time. In the seedling hole of the tray, cover the wet substrate with a thickness of 3cm, and then move the seeding tray to the seedling pond;

[0080] Described sowing disc is the long 65.8cm, wide 33.4cm and the sowing disc of high 4.8cm made of polystyrene foam material sold by Yunnan Kangxiang Industry...

Embodiment 2

[0085] Embodiment 2: the water-saving and fat-saving seedling raising method of the small seedling tobacco seedling under the film

[0086] The implementation steps of this embodiment are as follows:

[0087] A. Substrate loading

[0088] The substrate produced by Dali Sunshine Substrate Factory is moistened with tap water to make its water content reach 40% by weight, and then fill the seedling hole;

[0089] B. Sowing

[0090] When the seedling age is 42 days and the transplanting time is 2 days, the sowing time is 1 day, and the MSK326 coated tobacco seeds sold by Yuxi China Tobacco Seed Co., Ltd. are sown into the seedling holes of the seeding tray according to 1 coated tobacco seed per hole , cover the wet substrate with a thickness of 2cm, and then move the seeding tray to the seedling pond;

[0091] Described sowing disc is the long 66.0cm, wide 33.0cm and the sowing disc of high 5.5cm made of the polystyrene foam material sold by Yunnan Kangxiang Industry and Trade ...

Embodiment 3

[0096] Embodiment 3: the water-saving and fat-saving seedling raising method of the small seedling tobacco seedling under the film

[0097] The implementation steps of this embodiment are as follows:

[0098] A. Substrate loading

[0099] The substrate produced by Dali Sunshine Substrate Factory is moistened with tap water to make its water content reach 35% by weight, and then fill the seedling hole;

[0100] B. Sowing

[0101] When the seedling age is 46 days and the transplanting time is 1 day, the sowing time is 1 day, and the MSK326 coated tobacco seeds sold by Yuxi China Tobacco Seed Co., Ltd. are sown into the seedling holes of the seeding tray according to 1 coated tobacco seed per hole , cover the wet substrate with a thickness of 3cm, and then move the seeding tray to the seedling pond;

[0102] Described sowing disc is the long 65.9cm, wide 33.5cm and the sowing disc of high 5.2cm that are made of the polystyrene foam material sold by Yunnan Kangxiang Industry an...

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Abstract

The invention relates to a water-saving and fertilizer-saving seedling raising method for under-film tobacco seedlings. The method comprises the steps of substrate tray loading, sowing, management from sowing to seedling emergence stage, management from seedling emergence to seedling formation stage and the like. Compared with the technical regulation of flue-cured tobacco seedling raising, the water-saving and fertilizer-saving seedling raising method has the advantages that the water and fertilizer input is obviously reduced; water consumption in a whole seedling raising period is reduced; after seedling raising is completed, residual quantity of nutrients such as nitrogen, phosphorus and potassium is obviously reduced; and meanwhile, the nitrogen, phosphorus and potassium nutrient absorption amount in the whole growth period of the tobacco seedlings is increased to different degrees.

Description

【Technical field】 [0001] The invention belongs to the production technology of tobacco seedling cultivation. More specifically, the present invention relates to a water-saving and fat-saving seedling raising method for young tobacco seedlings under a film. 【Background technique】 [0002] Seedling raising is an important part of tobacco production. Seedling raising and transplanting have the advantages of shortening the growth period of the field, increasing the multiple cropping index, and artificially providing suitable light, temperature, water and fertilizer conditions. The Speeding Company of the United States developed the floating seedling raising technology in 1986, and then it was rapidly promoted in the United States, Canada, Brazil and other tobacco developed countries. my country introduced floating seedling raising technology in 1994 and began to promote and apply it to the whole country. Up to now, 97.02% of the total area of ​​tobacco seedlings in my country ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/45C05G1/00
CPCA01G22/45C05G1/00
Inventor 赵正雄高天周桂夙王学坚王德勋李世琛王均宜陈亚茹欧阳铖人王娜李军营范志勇
Owner YUNNAN AGRICULTURAL UNIVERSITY
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