Intelligent water-saving irrigating method based on crop demand

A crop and demand technology applied in the field of intelligent water-saving irrigation based on crop demand

Active Publication Date: 2016-04-20
QINGDAO ACADEMY OF INTELLIGENT IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, no matter whether sprinkler irrigation or drip irrigation technology is used, it is impossible to perf...

Method used

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  • Intelligent water-saving irrigating method based on crop demand
  • Intelligent water-saving irrigating method based on crop demand
  • Intelligent water-saving irrigating method based on crop demand

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Embodiment Construction

[0023] A smart water-saving irrigation method based on crop demand of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0024] figure 1 It is the principle block diagram of the intelligent water-saving irrigation method based on crop demand of the present invention, such as figure 1 As shown, the method includes the following steps:

[0025] Step 1: Construct a crop growth model based on the plant growth function-structure model (GreenLab), which can quantitatively calculate the biomass yield of crops in different growth cycles. In general, during the growth of crops, the water demand of crops in different growth cycles has a strong positive correlation with the biomass production in the corresponding growth cycles.

[0026] Wherein, the crop growth model is constructed based on the plant function-structure model (GreenLab), which is expressed as:

[0027] Q...

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Abstract

The invention provides an intelligent water-saving irrigating method based on crop demand. The method comprises the following steps of (1) determining crop internal growth mechanism parameters (r) and (Sp) according to a type of the cultivated crop, (2) building a growth model for crop growth periods (i) and determining biomass output of the crop during different growth periods according to the internal crop growth mechanism parameters in a quantitative way, (3) building a water demanding amount model for crop growth periods and calculating water demanding amount during different growth periods according to the biomass output acquired in the second step and soil moisture content data acquired via an environment monitoring device, and (4) carrying out an irrigating scheme for the full growth periods of the crop according to the water demanding amount acquired in the third step. The irrigation scheme is made according to a mathematic model based on crop growth rules, so the irrigation scheme can be applied to pot-culturing devices with limited irrigation; technical support is provided automatic on-off control of intelligent agricultural irrigating equipment; and water can be utilized to the largest extent.

Description

technical field [0001] The invention relates to the technical field of intelligent agricultural irrigation, in particular to an intelligent water-saving irrigation method based on crop demand. Background technique [0002] The most widely used water-saving irrigation methods in my country are sprinkler irrigation and drip irrigation. They use advanced technology to distribute water as evenly and moderately as possible to the soil in the root zone of crops, so that the soil often maintains moisture, aeration and nutritional conditions suitable for crop growth, so as to achieve the purpose of improving irrigation water use efficiency and water output efficiency. However, these irrigation methods still have some disadvantages in some practical applications. For example, in potted plants with limited irrigation, the water saving efficiency has not been substantially improved. The reason is mainly that these irrigation methods cannot perform timely and appropriate precise irriga...

Claims

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Application Information

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IPC IPC(8): A01G25/00G06F19/00
CPCA01G25/00G16Z99/00
Inventor 范兴容康孟珍华净王秀娟王浩宇王飞跃
Owner QINGDAO ACADEMY OF INTELLIGENT IND
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