Method for covering crop cultivation and raising seedling by optics principle and controlling temperature

A technology for covering crops and controlling temperature, applied in the field of crop cultivation, can solve problems such as unfavorable cultivation of strong seedlings and robust plants, shortened time of photosynthesis, weak, even burning seedlings and green stems, etc. The effect of mechanical transplanting, prolonging the fruiting period and long flowering period

Inactive Publication Date: 2012-09-05
薛建国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adopting this method has advantages and disadvantages for the growth of crops. The disadvantages are mainly reflected in the following aspects: 1. After the white film is covered, the light transmitted, or irradiated on the crops The light on the ground has not been transformed into the light with the strongest photosynthetic intensity for crops. Second, the white plastic film is used to control the temperature after covering it with a windproof heat preservation method, so that the temperature difference between day and night is too large, which is not good for photosynthesis under high temperature conditions, but makes breathing Consumption increases, and at the same time, if you do not pay attention to the ventilation, it is easy to cause leggy growth, weak seedlings, or even burnt seedlings and dry greens, resulting in undue losses; 3. Due to the above two reasons, the time for high photosynthesis efficiency is relatively shortened, Reduced accumulation of dry matter is not conducive to the development of strong seedlings and robust plants

Method used

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  • Method for covering crop cultivation and raising seedling by optics principle and controlling temperature
  • Method for covering crop cultivation and raising seedling by optics principle and controlling temperature
  • Method for covering crop cultivation and raising seedling by optics principle and controlling temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take rice seedling cultivation as an example:

[0022] The rice seedling ponds are directly covered with red-orange and blue-violet plastic films, so that the crops can receive red-orange and blue-violet light irradiation.

[0023] When the seedlings have emerged, it is necessary to pay attention to frequent ventilation. Generally, when the temperature is close to 10°C, the temperature of the greenhouse inside the film has exceeded 15°C. At this time, the photosynthesis has gone through a high-efficiency temperature process. The tuyere of the plastic film is widened at one time, so that the temperature in the greenhouse drops to close to the air temperature (10°C), and the covered crops go through a temperature process of 10°C to 15°C again, which makes the crops undergo secondary photosynthesis. Peak period. Because the most suitable temperature for photosynthesis is 10°C to 15°C. This treatment process advances the time of low-temperature seedling hardening at the s...

Embodiment 2

[0026] Example 2 Rice seedling cultivation, white film + temperature control throughout.

[0027] This paddy rice nursery field is covered with usual white film, and just begins to let out after the seedlings have come out completely, and the windproof process is exactly the same (A) as the process of letting in the wind of embodiment 1, before transplanting, cover with the white film of contrast, customary to let in the wind (B) rice shoot contrast, the result is as follows:

[0028]

Embodiment 3

[0030] For rice seedling cultivation, use red, orange, blue and purple plastic film, let the wind out in the first half of the day, and adjust the size of the air outlet in the second half of the day. Control the temperature between 36°C and 39°C, implement high temperature to inhibit the growth of seedlings, and promote more roots and more leaves.

[0031] The experimental results are as follows:

[0032]

[0033] This treatment showed that there were a lot of white roots, and the bottom layer of the root was close to the perforated membrane, and it was flocculent, just like throwing a mound. The root length was 6-7cm. At the same time, the seedling height of this treatment was reduced, and the number of leaves was more than that of the control1 ~1.5 leaves.

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Abstract

The invention relates to a cultivation and seedling method for cover crops by adopting optical principle and temperature control method, which is characterized in that during the cultivation and seedling stage of a cover crop, the cover prop is radiated by the most proper light wave in red orange and blue purple light wave band in the photosynthesis of the crop; or the crop is stimulated by controlling the temperature with relatively high speed and the temperature that inhibits spindling in photosynthesis of the crop; or one or more combination of a reflective curtain, a reflected light plateand a plastic film that can emit or reflect the strongest light suitable for the photosynthesis of the crop is arranged in the greenhouse or shed covered by common plastic film or glass; or the combination of the methods. The invention has the advantages that the light quality received by the cover crop is changed; the effective time that produces maximum effectiveness to the crop in photosynthesis is prolonged; the vegetative growth of the crop is changed; the reproductive and growth conditions are changed; at the same time, by performing temperature control scientifically and reasonably, dry matter is accumulated to the maximum extent, and the phenomena of seedling injury under high temperature, greenness and dryness, and spindling are avoided; weak and fragile seedlings are avoided, and the seedlings or plants are vigorous.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a method for covering crop cultivation and seedling raising by using an optical principle and a temperature control method. Background technique [0002] In the prior art, in the cultivation of cover crops, especially in the stage of seedling cultivation, the white film covering is usually used to control the temperature by letting the air out, so as to achieve the purpose of heat preservation and promoting crop growth. Adopting this method has advantages and disadvantages for the growth of crops. The disadvantages are mainly reflected in the following aspects: 1. After the white film is covered, the light transmitted, or irradiated on the crops The light on the ground has not been transformed into the light with the strongest photosynthetic intensity for crops. Second, the white plastic film is used to control the temperature after covering it with a windpro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G7/00A01G9/20A01G13/02
Inventor 薛建国
Owner 薛建国
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