Method for promoting photosynthetic efficiency of facility horticultural crops by using zeolite molecular sieve

A technology of zeolite molecular sieve and photosynthetic efficiency, applied in horticultural methods, botanical equipment and methods, horticulture, etc., can solve the problems of high energy consumption, and achieve the effects of low energy consumption, wide applicability, simple and safe operation

Active Publication Date: 2021-09-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in this invention, the collected CO 2 Desorption requires heating, which consumes a lot of energy. The adsorption b

Method used

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  • Method for promoting photosynthetic efficiency of facility horticultural crops by using zeolite molecular sieve
  • Method for promoting photosynthetic efficiency of facility horticultural crops by using zeolite molecular sieve
  • Method for promoting photosynthetic efficiency of facility horticultural crops by using zeolite molecular sieve

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1: Silicalite-1 molecular sieve improves Co in a closed environment 2 concentration

[0030] Prerequisite Silicalite-1 molecular sieve: 5cm is added to 12.5L sealing box 3 Silicalite-1 molecular sieve, then charge the sealing box in CO 2 It is sealed to stand at 0.1 h, 0.5 h, 1 h, 2h, 4h, 8h, 12h, respectively. Control material Caco 3 Preprocessing steps in the same parameters.

[0031] The pre-treated Silicalite-1 molecular sieve and control materials quickly transferred to CO, respectively. 2 The initial concentration is 480 ppm in a 56L empty sealing in an empty sealing in the sustained release CO 2 After 0.5h, the 56L empty sealing box is detected and recorded. 2 Concentration changes. Such as figure 1 As shown, the pre-treated Silicalite-1 molecular sieve and control materials can make the empty seal in 2 Increased concentration, but Silicalite-1 molecules screened in empty sealing box CO 2 The concentration increased by 340 to 500 ppm, the control material ena...

Example Embodiment

[0032] Example 2: Application of pre-treated Silicalite-1 molecular sieves in the facility cultivation environment CO 2 Effect of photoreactics and growth amount of concentration, facility horticultural criminal blade

[0033] Prerequisite Silicalite-1 molecular sieve: add 25cm to 12.5L sealing box 3 Silicalite-1 molecular sieve, then charge the sealing box in CO 2 , Sealing stands for 1 h. Control material Caco 3 Preprocessing steps in the same parameters.

[0034] The pre-treated Silicalite-1 molecular sieves and control materials are quickly transferred to CO, respectively. 2 Plant facility cultivation environment with concentration dropped to 400 ppm 2 , Detect and record CO in plant facilities cultivation 2 The change in concentration, after 5 h, the Silicalite-1 molecular sieve and control material were taken out.

[0035] The above-mentioned plant facility has a 580L sealed incubator. There are 8 long-term, and the consistent 'condinered' tomato seedlings are 8: 00-20: 00, ...

Example Embodiment

[0040] Example 3: Application of pre-treated Silicalite-1 molecular sieves in the facility cultivation environment CO 2 Concentration effect

[0041] Prerequisite Silicalite-1 molecular sieve: 50cm to 12.5L sealing box 3 Silicalite-1 molecular sieve, then charge the sealing box in CO 2 , Sealing stands for 1 h. Control material Caco 3 Preprocessing steps in the same parameters.

[0042] The pre-treated Silicalite-1 molecular sieves and control materials are quickly transferred to CO, respectively. 2 Plant facility cultivation environment with concentration dropped to 400 ppm 2 , Detect and record CO in plant facilities cultivation 2 Concentration changes.

[0043] The above-mentioned plant facility has a 580L sealed incubator. There are 8 long-term, and the consistent 'condinered' tomato seedlings are 8: 00-20: 00, which is 200 ~ 300μmol / m. 2 / s 1 .

[0044] After administering the above-mentioned Silicalite-1 molecular sieve or control material for 1 h, through CO 2 Recorder d...

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Abstract

The invention discloses a method for promoting photosynthetic efficiency of facility horticultural crops by using a zeolite molecular sieve the zeolite molecular sieve is a Silicalite-1 molecular sieve. The method for promoting the photosynthetic efficiency of the facility horticultural crops by using the zeolite molecular sieve comprises the following steps of (1) pretreating the Silicalite-1 molecular sieve so that the Silicalite-1 molecular sieve fully adsorbs CO2; and (2) transferring the pretreated Silicalite-1 molecular sieve to a facility cultivation environment in which the CO2 concentration is less than or equal to 480ppm, and standing the Silicalite-1 molecular sieve to slowly release the CO2. The Silicalite-1 molecular sieve is an MFI type all-silicon molecular sieve, is internally provided with a pore channel and a cavity, and can be used for adsorbing and desorbing the CO2, the technical scheme can realize adsorption and desorption of the CO2 by the Silicalite-1 molecular sieve at normal temperature and normal pressure, improves photosynthesis of the facility horticultural crops under the condition of low energy consumption, further promotes growth of the facility horticultural crops, and has the characteristics that operation is simple, convenient and safe, and environment is friendly.

Description

technical field [0001] The invention belongs to the field of facility agriculture, and in particular relates to a method of using zeolite molecular sieves to improve CO2 in plant cultivation facilities. 2 Concentration, methods to promote photosynthetic efficiency of protected horticultural crops. Background technique [0002] Facility agriculture is an important direction for the optimization, transformation and upgrading of my country's agricultural industrial structure. Improving the ability of environmental regulation is the key to improving the efficiency and production of facility agriculture. Due to the environmental conditions of protected cultivation and the photosynthesis of crops, the CO in the room / shed 2 Concentration continues to decrease, making facility crops in CO 2 The state of starvation will seriously affect the growth and stress resistance of its stems, leaves, fruits and other organs. Therefore, applying CO 2 Gas fertilizer is one of the important m...

Claims

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Application Information

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IPC IPC(8): A01G7/02
CPCA01G7/02Y02P60/20
Inventor 师恺王安然王亮王海王娇吕建荣喻景权
Owner ZHEJIANG UNIV
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