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Determination method for CO2 feeding amount of greenhouse culture green vegetable plants

A technology for determining the method and feeding amount, applied in the field of horticulture, can solve problems such as concentration decline and yield decline, and achieve the effects of simple operation, low cost and remarkable effect.

Inactive Publication Date: 2018-01-19
SHANGHAI INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies that exist in the prior art, the present invention solves the problems caused by CO in greenhouse cultivation of green leafy vegetables 2 Concentration drop causes yield drop problem, by CO 2 Artificial feeding technology to timely supplement the CO needed by green leafy vegetables 2 , providing a scientific basis for increasing the yield of green leafy vegetables grown in greenhouses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment relates to a greenhouse cultivation of green leafy vegetables CO 2 The determination method of feeding amount, described method comprises the steps:

[0026] (1) Selection and debugging of photosynthesis measuring instrument: the selection can measure plant photosynthetic rate, transpiration rate, respiration rate, CO 2 Concentration, air humidity, air temperature, stomatal conductance, intercellular CO 2 Concentration, light quantum utilization efficiency, water utilization efficiency and other indicators, the photosynthesis measuring instrument whose measurement error of each parameter is less than 0.1%, should be debugged in advance to ensure that all functions are normal;

[0027] (2) Preparation of small artificial climate chamber: Prepare a walk-in intelligent artificial climate chamber with a volume of 5m3 that can adjust temperature, light, CO2 concentration and humidity. The temperature adjustable range: 1-40°C, and the light adjustable range ...

Embodiment 2

[0037] This embodiment relates to a greenhouse cultivation of green leafy vegetables CO 2 The determination method of feeding amount, described method comprises the steps:

[0038] (1) Selection and debugging of photosynthesis measuring instrument: the selection can measure plant photosynthetic rate, transpiration rate, respiration rate, CO 2 Concentration, air humidity, air temperature, stomatal conductance, intercellular CO 2 Concentration, light quantum utilization efficiency, water utilization efficiency and other indicators, the photosynthesis measuring instrument whose measurement error of each parameter is less than 0.1%, should be debugged in advance to ensure that all functions are normal;

[0039] (2) Preparation of small artificial climate chamber: prepare a volume of 10m 3 , can adjust temperature, light, CO 2 Concentration and humidity walk-in intelligent artificial climate chamber, temperature adjustable range: 1-40℃, light adjustable range 0-2000μmolm -2 the...

Embodiment 3

[0049] This embodiment relates to a greenhouse cultivation of green leafy vegetables CO 2 The determination method of feeding amount, described method comprises the steps:

[0050] (1) Selection and debugging of photosynthesis measuring instrument: the selection can measure plant photosynthetic rate, transpiration rate, respiration rate, CO 2 Concentration, air humidity, air temperature, stomatal conductance, intercellular CO 2 Concentration, light quantum utilization efficiency, water utilization efficiency and other indicators, the photosynthesis measuring instrument whose measurement error of each parameter is less than 0.1%, should be debugged in advance to ensure that all functions are normal;

[0051] (2) Preparation of a small artificial climate chamber: prepare a walk-in intelligent artificial climate chamber with a volume of 15m3 that can adjust temperature, light, CO2 concentration and humidity. The temperature adjustable range: 1-40°C, and the light adjustable rang...

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Abstract

The invention provides a determination method for the CO2 feeding amount of greenhouse culture green vegetable plants. The method comprises the steps of 1, photosynthetic tester selection and adjusting; 2, preparation of a small phytotron; 3, culture and preparation of to-be-tested plants; 4, manufacturing of a CO2 constant chamber; 5, measurement setting; 6, determination of net photosynthetic rates under different temperatures; 7, determination of net photosynthetic rates under different illumination intensities; 8, determination of net photosynthetic rates under different temperature and illumination intensity combinations; 9, fitting of equations; 10, application. Due to the data collection, computer technology application and other modes, the artificial feeding CO2 time and consumption are determined, CO2 consumed by plant use in a greenhouse can be supplemented in time in production, and the scientific basis is provided for increasing the greenhouse culture green vegetable yield;the method has the advantages of being low in cost, easy and convenient to operate and remarkable in effect.

Description

technical field [0001] The invention belongs to the technical field of horticulture, and in particular relates to a green leaf vegetable plant cultivated in a greenhouse to determine CO 2 The determination method and application of feeding amount. Background technique [0002] Green leafy vegetables are a class of fast-growing vegetables that mainly produce fresh green leaves, petioles and tender stems. This type of vegetable has a short growth period, is not strict on the growth environment, and has low cost input. It is a vegetable that is given priority in various regions. Studies have shown that green leafy vegetables are rich in carotene, calcium, phosphorus, iron, potassium, vitamin C, vitamin B2 and phytochemicals and other nutrients. important source. The output of green leafy vegetables is mainly accomplished through vegetative growth, and the fundamental way of plant vegetative growth is photosynthesis. Plants produce nutrients through photosynthesis, so that in...

Claims

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Application Information

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IPC IPC(8): A01G9/18
Inventor 韩建秋韩月马雪云
Owner SHANGHAI INSTITUTE OF TECHNOLOGY
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