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

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 plate and 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 particularly relates to a method for covering crop cultivation and seedling cultivation by using optical principles and temperature control methods. Background technique [0002] In the prior art, in the cultivation of cover crops, especially the seedling raising stage, the white film mulch habit is usually used to control the temperature, so as to achieve the purpose of heat preservation and promote crop growth. Adopting this method has both advantages and disadvantages for crop growth. Its disadvantages are mainly reflected in the following aspects: 1. After the white film is covered, the light that passes through, or irradiates the crop The light above has not been transformed into the light with the strongest photosynthetic intensity for crops. Second, after covering with white plastic film, the temperature is controlled by the accustomed windproof insulation method, which makes the t...

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

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