Changeable spectrum cover suitable for small facility agriculture study and spectrum adjusting method thereof

An adjustment method and spectrum technology, applied in the field of plant research and experiment, can solve the problems of high site and facility cost, and achieve the effect of simple structure, easy management and space saving.

Active Publication Date: 2015-09-23
CHENGDU URBAN MODERN AGRI IND TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In modern agricultural production, the method of using colored plastic film to adjust the light configuration to regulate plant growth and development has been widely used in large-scale facility agronomy, but this method is not convenient to realize the control of light quality conditions in small-scale facility agronomy research. Extensive simulation
Moreover, the method of using LED light sources to modulate different light quality ratios is also widely used in indoor light quality simulation, but this method has certain requirements for venues and facilities and is expensive

Method used

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  • Changeable spectrum cover suitable for small facility agriculture study and spectrum adjusting method thereof
  • Changeable spectrum cover suitable for small facility agriculture study and spectrum adjusting method thereof
  • Changeable spectrum cover suitable for small facility agriculture study and spectrum adjusting method thereof

Examples

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Effect test

example 1

[0036] Corn-soybean strip compound planting is one of the intercropping patterns that have developed extremely fast in agricultural production in recent years. In this pattern, soybeans are affected by the shading of high-level crops, resulting in changes in the light environment, and low-level crops soybean canopy. Compared with the light environment of net soybean canopy, the ratio of light quality has changed, which has a great impact on the growth and development, morphogenesis and metabolic process of soybean. The simulation of intercropping spectrum is an important prerequisite for the study of soybean physiological metabolism and gene expression under this model.

[0037] This example takes the aforementioned variable spectral mask for small facility agronomic research and uses it for light film adjustment and simulation. Taking the soybean canopy spectrum under the normal corn-soybean intercropping mode as the simulation target, a combination of different color filter ...

example 2

[0039] Plants contain different pigment systems, and different pigments can use light in different wavelength ranges, thereby affecting the growth and development of plants. Light in the wavelength range of 400-700nm is the main factor affecting plant photosynthesis and growth and development, among which red light (R) of 600-700nm can reduce the content of gibberellin in plants, thereby reducing the length of internodes and plant height; while 700nm The effect of ~800nm ​​far-red light (FR) is just opposite to that of red light, which can increase the content of gibberellin in plants, thereby increasing the internode length and plant height. Therefore, the ratio of the luminous flux in the wavelength band centered on 660nm and 730nm, that is, the ratio of red light to far-red light (R / FR), represents the spectral parameter that has the greatest impact on plant photomorphogenesis.

[0040] This example adopts the above-mentioned variable spectral mask suitable for small-scale ...

example 3

[0046] In the study of multiple planting patterns such as corn-soybean, corn-peanut, corn-potato, sorghum-soybean, sugarcane-soybean, tobacco-soybean, etc., low-position crops (soybean, peanut, potato, etc.) are often affected by high-position crops (corn , sorghum, sugarcane, etc.) shading stress, leading to increased lodging and affecting yield and quality. Taking corn-soybean intercropping as an example, under the shady environment of intercropping, the shade-avoidance response will lead to the elongation of the internodes of cultivated soybean varieties, changing from erect to semi-erect or creeping, and eventually leading to lodging, the degree of which is affected by the light in the compound population. The impact of the environment, shading stress is different from weak light stress and light quality changes, which includes changes in light intensity and light quality. On the one hand, shading leads to a decrease in light intensity, and on the other hand, natural light ...

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Abstract

The invention discloses a changeable spectrum cover suitable for the small facility agriculture study and a spectrum adjusting method of the changeable spectrum cover. The changeable spectrum cover comprises an inner cover body and an outer cover body. The inner cover body is arranged in the outer cover body in a sleeved mode, the inner cover body can move along the inner wall of the outer cover body in the axis direction of the outer cover body, and the outer cover body is provided with a fixing assembly used for fixing the inner cover body. The inner cover body is composed of an inner frame and a plurality of transparent panels covering the side faces and the top face of the inner frame. The outer cover body is composed of an outer frame and a plurality of transparent panels covering the side faces of the outer frame. The inner frame and the outer frame are further provided with a plurality of filter coating clamping grooves so that needed filter coatings can be arranged on the surfaces of the transparent panels. According to the spectrum adjusting method, the spectrum adjustment of the local environment in the cover can be carried out through the changeable spectrum cover, and the spectrum environments needed by different plants can be simulated. Different spectrum signals can be simulated by adjusting the types and the matching of the filter coatings, and the changeable spectrum cover is suitable for the growth study of various indoor and outdoor plants.

Description

technical field [0001] The invention relates to the technical field of plant research experiments, more specifically, the invention relates to a variable spectrum mask suitable for small-scale facility agronomic research and a spectrum adjustment method thereof. Background technique [0002] Light is an important environmental factor for plant growth and development. Light provides environmental signals and energy sources for plant growth. Light signals directly or indirectly control most metabolic processes in plants through factors such as light quality, light intensity, photoperiod, and light time. , which constitute an essential ecological factor for plant growth and development. Light quality or spectrum is an important attribute of light. Adjusting the light quality received by plants according to actual needs can not only change the growth process of plants, but even change the geographical and seasonal attributes of plants. [0003] In modern agricultural production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06
CPCA01G7/06
Inventor 刘江吴海军张静杨峰刘卫国舒凯杜俊波王小春雍太文邓俊才杨文钰
Owner CHENGDU URBAN MODERN AGRI IND TECH RES INST CO LTD
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