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Facility crop irrigation quota calculation method and system

A technology for facility crops and irrigation quotas, applied in the fields of botanical equipment and methods, calculations, complex mathematical operations, etc., and can solve problems such as calculating irrigation water quotas for facility planting

Active Publication Date: 2022-06-21
HUAZHONG UNIV OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the purpose of the present invention is to provide a method and system for calculating irrigation quotas for facility crops, aiming at solving the problem of how to calculate irrigation water quotas for facility planting

Method used

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  • Facility crop irrigation quota calculation method and system
  • Facility crop irrigation quota calculation method and system
  • Facility crop irrigation quota calculation method and system

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Embodiment

[0089] In this embodiment, the specific steps are described in detail by taking the calculation of the irrigation water quota for tomato cultivation in the Wuhan greenhouse planting base as an example:

[0090] Step 1: Collect and study the relevant data of the greenhouse area through on-site investigation and data research. The relevant data of the greenhouse area include: local meteorological data, the internal structure of the greenhouse, the plan for planting crops, and the period of opening and covering; the meteorological data adopts the Chinese ground climate The data of daily value data set is the data of Wuhan Station from 1978 to 2007, obtained from field investigation of planting plan, canopy opening and canopy covering plan; the crop coefficient of planting tomato is shown in Table 1;

[0091] Table 1

[0092] month Kc March 0.45 April 0.89 May 1.06 June 0.93 October 0.45 November 0.89 December 1.06 January...

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Abstract

The invention provides a facility crop irrigation quota calculation method and system, and belongs to the field of water-saving irrigation, and the method comprises the steps: collecting a crop planting scheme and data in a facility greenhouse through on-site investigation and analysis; according to the collected data, the planting time period is divided into a facility uncovering ventilation time period, a covering setting heat preservation time period and a facility shading time period; determining the duration of each time period and a related parameter change coefficient under the monthly scale; determining crop evapotranspiration ET0, mi under the influence of the greenhouse according to the meteorological data; calculating the monthly water demand ETc of the facility crops; and calculating the quota of irrigation water for the facility crops. According to the method, the blank in the quota calculation aspect of facility planting irrigation water is filled.

Description

technical field [0001] The invention belongs to the field of water-saving irrigation, and more particularly, relates to a method and system for calculating the irrigation quota of facility crops. Background technique [0002] Facility greenhouses can be used for heat preservation and overwintering cultivation of vegetables and flowers in winter and spring, and play the role of shading and cooling, rain, wind and hail in summer and autumn, and the yield is significantly improved compared to open-air cultivation. The changes in meteorological data in facility greenhouses are different from those in the open air, and there are corresponding planting patterns and water use methods. Therefore, the calculation method of crop irrigation quota has changed. Compared with the calculation of open-air planting methods, the calculation is more complicated. Calculating the irrigation water quota for facility planting has become an urgent problem to be solved. [0003] The production of v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/16A01G9/24A01G9/14G06F17/18G06Q50/02
CPCA01G25/16A01G9/247A01G9/14G06F17/18G06Q50/02Y02A40/25
Inventor 孙怀卫刘路广王锐毅汪楷勋阳勇孙勋来严冬谢恩杜世雄宋亮徐鑫蔺子琪鲁梦格
Owner HUAZHONG UNIV OF SCI & TECH
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