Soil improvement method for improving cultivation survival rate of blueberry in north

A soil improvement and survival rate technology, applied in the fields of land preparation methods, applications, agricultural machinery and implements, can solve the problems of death, blueberry poisoning, poor blueberry growth, etc., to increase aeration, increase soil aeration, and ensure blueberry roots effect of growth

Inactive Publication Date: 2015-10-28
SHANDONG AGRICULTURAL UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the pH value is too high, the content of soluble Mn, Zn, and Cu in the soil will decrease; when the pH value is too low, pH<4.0, it is easy to cause excessive absorption of heavy metal elements and poison blueberries, resulting in poor growth and even death of blueberries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The farmland in a certain place in the north is going to plant blueberries next year. In order to ensure the survival rate of blueberry seedlings, the following measures are taken:

[0019] Before and after March 20 in the spring of that year, the pH value of the soil was tested. The pH value was 7.5, which was three points higher than the required value of 4.5. Therefore, it is necessary to improve the farmland soil. Before and after the 25th of the month, spread the mixed fertilizer containing sulfur powder twice to reduce the pH value. After each spreading, shallow plow to a depth of 15-35cm, and mix it evenly with the soil;

[0020] The calculation method of the spreading rate of the mixture fertilizer is: require every reduction of 1 pH value, and the mixture fertilizer applied to each mu of soil contains 30-40kg of sulfur powder (value 35kg in the embodiment), because the pH value is higher than the required The value is 3 points, so the mixed fertilizer applied p...

Embodiment 2

[0023] The farmland in a certain place in the north is going to plant blueberries next year. In order to ensure the survival rate of blueberry seedlings, the following measures are taken:

[0024] Around March 20 in the spring of that year, the soil pH value was tested, and the pH value was 3, which was 1.5 points lower than the required pH value, so the farmland soil was improved. During the improvement, the mixed fertilizer containing lime powder was sprinkled twice around March 20 in the spring and around October 25 in the autumn to increase the soil pH value. mix evenly;

[0025] The calculation method for the amount of lime powder mixture fertilizer is as follows: for each pH value that is required to be increased by 1, the mixture fertilizer applied per mu of soil each time contains 62.5kg of lime powder. Since the actual pH value is 1.5 points lower than the required pH value , so the mixed fertilizer applied per mu should contain lime powder=93.75kg. That is to say: ...

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PUM

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Abstract

The invention discloses a soil improvement method for improving cultivation survival rate of blueberry in north. The soil improvement method comprises the following steps: in the spring one year before blueberry seedling cultivation and planting, testing the soil pH value; when the soil pH value is bigger than 5.5, spreading a compound fertilizer containing sulphur powder into soil, so as to decrease the pH value, and when the soil pH value is lower than 4.0, spreading a compound fertilizer containing lime powder into soil, so as to increase the pH value; after each time of fertilizer spreading, shallowly ploughing soil at the depth of 15-35 cm, so as to uniformly mix the fertilizer with soil and finally enable the soil pH value to reach 4.0-5.5. According to the soil improvement method, as the blueberry root system is shallow, the compound fertilizers containing organic substances are spread into the shallow soil layer at the depth of 0-35 cm, so that the soil aeration, water permeability and drainage property are improved; improved soil is suitable for blueberry to survive and grow.

Description

technical field [0001] The invention relates to forest fruit cultivation technology. Background technique [0002] Blueberry, also known as bilberry and blueberry, belongs to Rhododendronaceae, Vaccinia subfamily, and Vaccinium plants. In the north of my country, it is a perennial deciduous or evergreen shrub, and the planting areas are the Changbai Mountains in the Northeast and the South. Blueberry fruit is rich in nutrition and contains unique functional substances such as preventing brain aging, enhancing heart function, improving eyesight and anti-cancer. It is listed as one of the five health foods for human beings by the Food and Agriculture Organization of the United Nations. At present, there are three main varieties of blueberry planting in China: high-bush blueberry (Vaccinium corymbosum) is the most cultivated and suitable for mild climate regions; low-bush blueberry (Vaccinium angustifolium) is suitable for northern regions and has strong cold resistance; rabbi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00
Inventor 刘炎赫毕建杰谭秀山连翠春
Owner SHANDONG AGRICULTURAL UNIVERSITY
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