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Underground brackish water and rainwater mixed irrigation method for facility agriculture

A technology of facility agriculture and brackish water, applied in the field of agricultural irrigation, can solve problems such as inability to completely eliminate the adverse effects of brackish water irrigation, poor uniformity of irrigation, and impact on crop yield, so as to improve the efficiency of irrigation water use and the quality of melons, and improve The effect of increasing sugar content and hexose content

Active Publication Date: 2021-09-03
陕西省生物农业研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing technologies are to irrigate underground brackish water and fresh water or rainwater in rotation. On the one hand, using brackish water with high salt content in the rotation irrigation process will still have adverse effects on the facility crops during the growth period. The use of fresh water or rainwater rotation irrigation will partially alleviate the adverse effects of brackish water, but it cannot completely eliminate the adverse effects of brackish water irrigation, and it will still have a certain impact on the final yield of crops
On the other hand, the rotation irrigation method of brackish water and fresh water or rainwater tends to cause poor uniformity of irrigation, and the crops are not uniformly affected by the salt in the irrigation water.

Method used

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  • Underground brackish water and rainwater mixed irrigation method for facility agriculture
  • Underground brackish water and rainwater mixed irrigation method for facility agriculture
  • Underground brackish water and rainwater mixed irrigation method for facility agriculture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] To verify the effect of the conductivity of irrigation water on the growth of facility crops:

[0058] Select water with conductivity of 1.56mS / cm, 4.69mS / cm and 9.67mS / cm to irrigate facility tomato, facility greens, facility spinach and facility garlic seedlings respectively, with conductivity of 0.65mS / cm, 3.34mS / cm and 9.67mS / cm The mS / cm water was used to irrigate facility cucumbers and facility peppers, and the conductivity of irrigation water was used as the only variable. The number of irrigation times, irrigation water consumption and other field management measures were the same as usual, and the conditions of facility crops irrigated with water of different conductivity were observed. Growth conditions, the growth conditions of different irrigation water conductivity facilities tomato, facility green vegetables, facility spinach and facility garlic seedlings are as follows Figure 6-9 As shown, the growth conditions of cucumber and pepper in different irrigat...

Embodiment 2

[0060] The facility tomato was selected as the irrigation object, and the brackish underground water in Feng Village of Dali was used as the brackish underground water for dilution.

[0061] (1) Determine the optimal conductivity of the irrigation water required for the facility tomato

[0062] The test result in the embodiment 1 has proved that the growth situation of facility tomato and the yield per plant are obviously better than the conductivity at 4.69mS / cm-9.67mS / cm when the conductivity of irrigation water is in the range of 1.56mS / cm-4.69mS / cm. cm range, so the conductivity range of 4.69mS / cm-9.67mS / cm does not need to be considered when determining the optimal conductivity of the irrigation water required for the tomato facility. Select water with a conductivity of 0.5mS / cm, 1.0mS / cm, 1.5mS / cm, 2.0mS / cm, 2.5mS / cm, 3.0mS / cm, 3.5mS / cm, 4.0mS / cm, 4.5mS / cm The facility tomatoes were irrigated separately, and the irrigation frequency, irrigation water consumption and oth...

Embodiment 3

[0071] The cucumber of the facility was selected as the irrigation object, and the brackish underground water in Lintong District of Xi'an was used as the brackish underground water for dilution.

[0072] (1) Determine the optimal conductivity of the irrigation water required for the cucumbers in the facility

[0073] The optimum conductivity of irrigation water required for cucumbers was determined to be 1.85mS / cm by the same method as in step (1) of Example 2.

[0074] (2) Determination of the actual conductivity of the ground brackish water in the test area

[0075] The actual conductivity of brackish underground water measured in Lintong District, Xi'an is 4.38mS / cm.

[0076] (3) Calculate the mixing ratio according to the dilution ratio function

[0077] Substitute the actual conductivity of the brackish underground water into the dilution ratio function 2 to calculate the ratio value y a =1.983, the optimal conductivity 1.85mS / cm of the required irrigation water for cuc...

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Abstract

The invention discloses an underground brackish water and rainwater mixed irrigation method for facility agriculture. The method comprises the following steps: determining the optimal conductivity of irrigation water needed by facility crops; measuring the actual conductivity of the underground brackish water; calculating the mixing ratio of the underground brackish water to the rainwater according to the dilution ratio function; mixing the underground brackish water with the rainwater according to the calculated mixing ratio to obtain irrigation water; and irrigating facility crops by using the mixed irrigation water. By means of the irrigation method, the irrigation water with the determined conductivity can be rapidly mixed to irrigate facility crops, and support is provided for efficient and safe irrigation of brackish water.

Description

technical field [0001] The invention belongs to the technical field of agricultural irrigation, and in particular relates to a mixed irrigation method of underground brackish water and rainwater for facility agriculture. Background technique [0002] Agricultural water is a large part of water resources, and crop production water accounts for about 30% of agricultural water use. With the increasingly serious problems of water resource depletion and water quality deterioration, the shortage of fresh water resources has become the main factor restricting agricultural development. Rain harvesting and supplementary irrigation is one of the ways to solve the problem of agricultural water shortage. However, due to the uneven alternation of natural precipitation between rich and dry seasons and great inter-annual variations, it is difficult to meet the needs of agricultural production for rain-harvesting irrigation. [0003] In recent years, with the scarcity of fresh water resou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q50/02A01G25/00
CPCG06Q10/06311G06Q10/04G06Q50/02A01G25/00Y02A40/22
Inventor 任平常青王周平付博李英梅张锋阮祥稳
Owner 陕西省生物农业研究所
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