Ridge film-mulching soil moisture preservation and rainwater collection ditch water collection method based on dry land fruit tree root system soil hydrothermal environment

A soil water and thermal environment technology, applied in the fields of soil moisture conservation, ridge film mulching between rows of orchards in dry land, efficient use of water and fertilizer, and small ditch rain collection fields, can solve frequent seasonal droughts, large annual and seasonal variability of precipitation, Problems affecting the growth of fruit trees such as sustainable and stable production of fruit, to achieve the effects of simple operation, accelerated growth of saplings, and low cost

Inactive Publication Date: 2015-02-04
INST OF FRUIT & FLORICULTURE RES GANSU ACADEMY OF AGRI SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the annual and seasonal variability of precipitation in the territory is relatively large, coupled with high-intensity ground evaporation, re

Method used

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  • Ridge film-mulching soil moisture preservation and rainwater collection ditch water collection method based on dry land fruit tree root system soil hydrothermal environment

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Experimental program
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Effect test

Embodiment 1

[0037] As shown in the legend, it is implemented in dryland orchards on the Loess Plateau of Longdong with annual rainfall of about 500mm and evaporation exceeding 1500mm. Dig a ditch with a width and depth of 30×40cm vertically downward at the crown projection of a 15-year-old apple tree, apply base fertilizer (50 kg / plant of decomposed organic fertilizer) and backfill it; go forward outside the fertilization pit, and paste the fertilization pit Make a rain-collecting ditch with a width and a depth of 15 cm on the outer edge. The ditch soil is covered in the row, and the height is 10-15 cm. Do not bury the soil, and cover the ridge with black plastic film with a width of 120cm.

[0038] The measurement found that when the rainfall is only 0.9mm during the dry period, the soil moisture content in the concentrated distribution area of ​​​​the root system of the rain-collecting ditch is about 3% higher than that of the non-covered area, and the film is uncovered in the rainy sea...

Embodiment 2

[0040]As shown in the legend, it is implemented in dryland orchards on the Loess Plateau of Longdong with an annual rainfall of about 500mm and evaporation exceeding 1500mm. Take the method of topping and covering, dig a trench with a width and depth of 30×40cm vertically downward on the inner side of the canopy of the 2-year-old apple saplings, apply base fertilizer (10 kg / plant of decomposed organic fertilizer) and backfill; In the row direction, attach the outer edge of the fertilization pit to make a rain-collecting ditch with a width and depth of 15 cm. The ditch soil is covered in the row, and the height is 10 cm. Soil, covered with black plastic film on the ridge surface, the width of the film is 60cm. Under this measure, the saplings have strong branching ability, vigorous growth, fast trunk thickening rate, and tree shape cultivation time is obviously shortened.

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Abstract

The invention discloses a ridge film-mulching soil moisture preservation and rainwater collection ditch water collection method based on a dry land fruit tree root system soil hydrothermal environment. Ridges are inwardly made in the vertical projections of crowns, rainwater collection ditches are outwardly dug in the vertical projections of the crowns, fertilization ditches are inwardly dug close to the rainwater collection ditches, black mulching films are spread at the beginning of thawing, and roots are exposed within a range between 3cm and 5cm around the roots of tree bodies; mulching films are spread on the sloped ridge surfaces, and are fixed by longitudinal batten-shaped earth; the films are removed in time in the rainy season in order to keep a good soil environment. The method is based on the rainfall characteristics of local regions, a fruit tree moisture utilization principle and the keeping of a good root zone environment. The technique is easy to operate, the cost is low, and the method has the technical effects of water preservation, water storage, evaporation resistance, centralized moisture utilization, water-promoted fertilization and keeping of the good root zone environment. The method is suitable for apple trees, peach trees, pear trees, grapevines and other fruit trees of different ages in arid regions, and can promote the activity of the root systems of fruit trees and accelerate the growth of saplings and the formation of tree shapes, ensure the stable and increased yield of grown fruit trees and increase the quality of fruits.

Description

technical field [0001] The invention relates to an orchard ridge film moisture conservation and rain collection technology, in particular to a method for dryland orchard inter-row ridge film mulching, moisture conservation, small ditch rain collection, and efficient use of water and fertilizer. Background technique [0002] The Ministry of Agriculture announced the "Regional Layout Plan for Superior Agricultural Products" (hereinafter referred to as "Zone") in 2003. In the "Zone", 12 types of northern deciduous fruit trees, including apples, peaches, pears, grapes, apricots, walnuts, dates, plums, cherries, and persimmons, are specialty fruit. [0003] The total rainfall in fruit tree producing areas on the Loess Plateau in Northwest China is generally around 400mm. More than 80% of the orchards in this area rely on natural precipitation, and the total rainfall basically meets the growth needs of fruit trees. However, the annual and seasonal variability of precipitation in ...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G13/02
CPCY02A40/22
Inventor 王发林马明张坤王国庆王晨冰尹晓宁刘小勇王玉安
Owner INST OF FRUIT & FLORICULTURE RES GANSU ACADEMY OF AGRI SCI
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