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Greenhouse crop fertigation method

A technology for irrigation and fertilization and crops, which is applied in fertilization methods, botany equipment and methods, greenhouse cultivation, etc., can solve problems such as difficult to achieve accurate and efficient fertilization, and can not determine the amount of fertilizer required, so as to improve yield and quality, reduce damage The effect of small size and high detection accuracy

Active Publication Date: 2014-02-12
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The disadvantage of these methods is that the amount of fertilizer required cannot be determined according to the actual needs of the crops, and it is difficult to achieve accurate and efficient fertilization

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0023] The following is an example of the irrigation and fertilization method of potassium fertilizer in the greenhouse cucumber seedling stage to illustrate the implementation process.

[0024] Step 1: Detect the daily average concentration of potassium ions in cucumber

[0025] Cultivate a batch of cucumbers with normal fertilizer supply, take the whole process from the beginning of crop growth to harvest, and record the number of growing days during the growth period as n;

[0026] Four cucumbers were selected at the head, middle and tail of the cucumber irrigation area, and a total of 12 cucumber plants were selected. The current cucumber is a seedling with 4 leaves and 1 heart, and the second functional leaf of each cucumber seedling is taken as a sample.

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Abstract

The invention discloses a greenhouse crop fertigation method, belonging to the field of modern agricultural precision fertigation. The method is characterized by obtaining the concentration information of nitrate ions, ammonium ions and potassium ions in the crops by using an ion selective microelectrode, comparing the concentration information with the ion concentration in the same period in the plants normally supplied with fertilizers to obtain the ion concentration difference and determining the fertigation amount of nitrate nitrogen fertilizers, ammonium nitrogen fertilizers and potassium fertilizers. The method can be used in the field of modern agricultural precision fertigation and is beneficial to increasing the fertilizer utilization rate and the yields and quality of the crops.

Description

technical field [0001] The invention belongs to the technical field of greenhouse control, in particular to a method for irrigating and fertilizing greenhouse crops by obtaining ion concentration information in crops according to ion-selective microelectrodes. Background technique [0002] Greenhouses have changed the traditional agricultural production model, broken the geographical and temporal and spatial limitations of crop growth, and promoted the development of agricultural production and the progress of social civilization. Artificially changing the environment conducive to crop growth in greenhouse production is high-yield, high-quality, and efficient agriculture, but crop growth requires a lot of fertilizer and high soil fertility consumption. Existing irrigation and fertilization is mainly controlled manually, and symptoms such as imbalance or deficiency of main nutrient elements such as nitrogen and potassium often occur, directly affecting the yield and quality o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00A01G9/24
CPCY02A40/25
Inventor 左志宇毛罕平张晓东姚舟华熊宇鹏韩绿化李青林黄文岳骆飞
Owner JIANGSU UNIV
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