Method for reducing ring-barking intensity for winter jujube trees by means of root trimming and rhizosphere nutrition regulation and control

A technology of nutrient regulation and root pruning, applied in botany equipment and methods, horticultural methods, fertilization methods, etc., can solve problems such as wasting manpower, material and financial resources, affecting the yield and quality of winter jujube, and reducing the ability to resist diseases. Improve reproductive growth, improve the quality of jujube fruit, and promote the effect of fruit setting

Inactive Publication Date: 2017-07-04
SHANDONG FOREST SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The width of the traditional carapace is about one-tenth of the trunk diameter (GB / T 18846-2008 Geographical Indication Product Zhanhua Dongzao), but annual girdling seriously affects the tree vigor of jujube trees and reduces the ability of disease resistance , and there is a phenomenon of increasing the width of girdling year after year, which makes it difficult to heal the wound, and even the phenomenon of tree death abounds, which greatly wastes manpower, material and financial resources, and seriously affects the yield and quality of winter jujube.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Winter jujube root scissors

[0033] Before the germination of winter jujube (mid to late April), at the distance of 3 times DBH from the trunk on both sides of the row of winter jujube, use a sharp tool such as a shovel to cut down the root system vertically. At a certain distance, use a shovel to cut the root system vertically, with a depth and width of 20cm each, dig a trench along the line, and dig the two ends to the outer edge of the canopy projection. The incision should be smooth to facilitate wound healing and fibrous root growth.

[0034] 2. Rhizosphere nutrition regulation

[0035] The rhizosphere application of special bio-organic fertilizer was used to control the nutrition of the root system of winter jujube after root shearing. The production method of Dongzao biological fertilizer: the dominant microbial strains screened and isolated from the rhizosphere soil of Dongzao jujube - rhizosphere growth-promoting Bacillus (the deposit number is CGMCC NO. ...

Embodiment 2

[0040] 1. Winter jujube root scissors

[0041] Before the germination of winter jujube (mid to late April), take the trunk as the benchmark, cut the root system vertically downward with a sharp tool such as a shovel at a distance of 3 times the diameter at breast height on both sides of the row, with a depth and width of 23cm each, and dig trenches in an anterograde direction. Both ends are dug to the outer edge of the canopy projection. The incision should be smooth to facilitate wound healing and fibrous root growth.

[0042] 2. Rhizosphere nutrition regulation

[0043] The rhizosphere application of mycorrhizal fungus was used to control the nutrition of the root system of winter jujube after root shearing. The mycorrhizal fungicide was Glomus versiforme, which was provided by German Amiko Co., Ltd. The application should be carried out at the same time as soil backfilling. The application rate is 100ml per plant. The mycorrhizal agent should be applied while filling the...

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Abstract

The invention discloses a method for reducing ring-barking intensity for winter jujube trees by means of root trimming and rhizosphere nutrition regulation and control. The method comprises following steps: (1) root trimming: before sprout of winter jujube trees, vertically cutting off the roots at the distance that is 3 to 5 times of the diameter at breast height from the trunks at two sides of winter jujube trees, trenching in the same direction, trenching to the outer edge of the projection of crowns at two ends; (2) rhizosphere nutrition regulation and control: performing nutrition regulation and control on the winter jujube tree roots after root pruning, applying winter jujube bio-fertilizer in the trenches during root pruning, filling the soil back and compacting and watering after fertilizing; (3) slightly girdling: in the full flowering stage of the winter jujube trees, performing ring-barking, wherein the width of ring-barking is twentieth to tenth of the trunk diameter. Through the root trimming and rhizosphere nutrition regulation and control, the ring-barking intensity for winter jujube trees is finally reduced so as to reduce the harm on winter jujube trees and increase the fruit setting rate of winter jujube.

Description

technical field [0001] The invention relates to the technical field of winter jujube production, in particular to a method for reducing the strength of winter jujube opening by utilizing root system pruning and rhizosphere nutrient regulation. Background technique [0002] Winter jujube is the main fresh food variety in the Yellow River Delta region of Shandong, and it is the main source of income for local farmers. However, the vegetative growth of winter jujube trees is extremely strong, which leads to weak reproductive growth, resulting in serious flower and fruit drop, and low natural fruit setting rate, which seriously affects the economic income of farmers. In actual production, the method of opening the nail (girdling) is often used to temporarily cut off the cortex of the trunk to dredge the tissue, block the backflow of nutrients above the nail, and concentrate nutrients for the formation of flower buds and fruit setting, so as to improve the fruit setting rate. ...

Claims

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Application Information

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IPC IPC(8): A01G7/06A01C21/00C05G3/04C05G3/80
CPCA01C21/005A01G7/06C05F3/00C05G3/80C05F11/08
Inventor杜振宇杨守军马海林马丙尧刘方春韩传明王清华井大炜
OwnerSHANDONG FOREST SCI RES INST