Method for relieving stress of saline-alkali soil on grape growth by irrigating acetic acid

A technology of saline-alkali soil and acetic acid, which is applied in land preparation methods, botanical equipment and methods, watering devices, etc., to achieve the effects of improving soil pH, stimulating plant physiological activity, and not easy to evaporate

Inactive Publication Date: 2018-07-31
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there is no application of acetic acid irrigation to relieve the stress of saline soil on grape physiological barriers.

Method used

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  • Method for relieving stress of saline-alkali soil on grape growth by irrigating acetic acid
  • Method for relieving stress of saline-alkali soil on grape growth by irrigating acetic acid
  • Method for relieving stress of saline-alkali soil on grape growth by irrigating acetic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Watering acetic acid was carried out in the vineyard of Shandong Agricultural University.

[0019] The annual potted seedling "Moldova" was selected and planted in a plastic pot with a diameter of 20 cm and a height of 18 cm. When the seedlings grew to 10 leaves, they were watered with seawater to simulate saline-alkali soil watering and acetic acid watering. The specific method is as follows: the first group is watered with clear water; the second group is watered with seawater diluted to a concentration of 15%; the third group is watered with seawater diluted to 15% and 30 mmol / L acetic acid solution; the seawater is taken from Bohai Bay , pH 7.88, salt content 9020ppm, watering amount is twice the water holding capacity of the substrate, about 1 / 3 of the solution flows out, so as to wash away the residual salt accumulated before, keeping the seawater concentration constant, watering once every 10 days. The pH value of the soil after seawater irrigation was 7.53, and ...

Embodiment 2

[0040] The operation is carried out on the saline-alkali land of the grape planting field, and the acetic acid solution is irrigated.

[0041] 1) before the germination of grapes in the spring soil return period of saline-alkali land, 30mmol / L acetic acid solution is used to irrigate according to the number of vines, and each vine is watered with 4 liters of acetic acid solution; Take the mode of drip irrigation, water once every 10-15d; The time of the watering day is selected as 16:00 in the afternoon;

[0042] 2) According to the weather forecast, if there is rain, it is not necessary to irrigate, and 7d after the rain, it will be irrigated again, and it is not necessary to irrigate again in the rainy season. The pH value of the local soil was tested after watering, and it was found that the acetic acid watering lowered the pH value of the soil by between 0.5-1.

[0043] 3) and the root vigor and chlorophyll content of grapes, the MDA content in grape roots, stems and leav...

Embodiment 3

[0045] The operation is carried out on the saline-alkali land of the grape planting field, and the acetic acid solution is irrigated.

[0046] 1) Before the germination of grapes in the spring soil return period of saline-alkali land, 20mmol / L acetic acid solution was used to irrigate, and the method of pipe irrigation was adopted, and the irrigation amount was 4 liters / plant. 15:00 pm;

[0047] 2) According to the weather forecast, it is not necessary to irrigate if there is rain, and then irrigate again 8 days after the rain. In the rainy season, there is no need to irrigate again. During this period, there is a lot of rain and the soil salt content is low, so there is no need to irrigate acetic acid. The pH value of the local soil was tested after watering, and it was found that the acetic acid watering lowered the pH value of the soil by between 0.5-1.

[0048] 3) and the root vigor and chlorophyll content of grapes, MDA content in grape roots, stems and leaves were measu...

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Abstract

The invention relates to a method for relieving the stress of saline-alkali soil on grape growth by irrigating acetic acid. During the period of salt return of soil in spring, an acetic acid solutionis irrigated on the soil in a vineyard, and the concentration of the acetic acid is 20-40mmol/L. According to the method provided by the invention, the pH value of the soil is reduced by 0.7 unit by irrigating acetic acid, so that the saline-alkali physiological barrier of grapes can be remarkably reduced, the root activity and chlorophyll content of the grapes are remarkably improved, the production of active oxygen is reduced, and the growth of plants is promoted.

Description

technical field [0001] The invention relates to a method for watering acetic acid to relieve the stress on grape growth caused by saline-alkali soil, and belongs to the field of viticulture planting. Background technique [0002] A large amount of saline soil is distributed in the northwest, north, northeast and coastal areas of China. Affected by factors such as climate warming, drought and unreasonable farming, the area of ​​secondary salinization of land is still expanding. The physiological obstacle of grapes caused by salinized soil is becoming more and more obvious. Soil salinization is the main ecological problem facing our country. In production, the root zone soil improvement technology or the spring water pressure salt technology is generally adopted, which consumes a lot of manpower, material resources and water resources. Acetic acid is cheap and low in pH, which can reduce the pH of saline-alkali soil and activate the ability of plants to resist ecological adve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/02A01G25/00A01B79/00
CPCA01G17/02A01B79/00A01G25/00
Inventor 杜远鹏王辉高玉录翟衡
Owner SHANDONG AGRICULTURAL UNIVERSITY
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