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Fertilization control method for chlorosis of branches and leaves of torreya grandis

A technology of yellowing disease and torreya, applied in fertilization methods, fertilization devices, magnesium fertilizer, etc., can solve the problems affecting the healthy development of torreya industry, affecting the yield and quality of torreya, and reducing the soil compactness , Improve soil physical characteristics, improve the effect of aggregate structure

Active Publication Date: 2020-09-15
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Torreya golden branch phenomenon is serious, the branches are easy to fall leaves, the branches droop, and the tree vigor declines, which seriously affects the yield and quality of torreya, and then seriously affects the income of fruit farmers and the healthy development of torreya industry
At present, there is no effective preventive method for the golden branch phenomenon of torreya

Method used

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  • Fertilization control method for chlorosis of branches and leaves of torreya grandis
  • Fertilization control method for chlorosis of branches and leaves of torreya grandis
  • Fertilization control method for chlorosis of branches and leaves of torreya grandis

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Embodiment 1

[0035] In the Shengwuling area of ​​Pujiang, Jinhua City, Zhejiang Province, where Torreya is widely planted, 20-year-old Torreya trees were selected to prevent and control the yellowing disease of Torreya tree branches and leaves, that is, "golden branches":

[0036] 1) From December to January of the following year, apply soil conditioner, calcium, magnesium, phosphate and medium element fertilizers around the trunk of the Chinese torreya tree along the crown of the tree, and the amount of soil conditioner is 3.8-4.2kg per plant, calcium The dosage of magnesium phosphate fertilizer is 1.8-2.2kg per plant; the dosage of medium element fertilizer is 1.0-1.2kg per plant;

[0037] 2) From March to May of the next year, apply soil conditioner along the crown of the tree using the ring ditch method, calcium magnesium phosphate fertilizer and medium element fertilizer around the trunk of the Chinese torreya tree, wherein the amount of soil conditioner is 2.2-3.0kg per plant, calcium...

Embodiment 2

[0040] In the Zaojiewu area of ​​Pujiang, Jinhua City, Zhejiang Province, where Torreya is widely planted, 25-year-old Torreya trees were selected to prevent and control the yellowing disease of Torreya tree branches and leaves, that is, "golden branches":

[0041] 1) From December to January of the following year, apply soil conditioner, calcium, magnesium, phosphate and medium element fertilizers around the trunk of the Chinese torreya tree along the crown of the tree, in which the amount of soil conditioner is 3.8-4.5kg per plant, calcium The dosage of magnesium phosphate fertilizer is 1.8-2.5kg per plant; the dosage of medium element fertilizer is 1.0-1.5kg per plant;

[0042] 2) From March to May of the following year, apply soil conditioner along the crown of the tree using the ring ditch method, calcium magnesium phosphate fertilizer and medium element fertilizer around the trunk of the Chinese torreya tree, wherein the amount of soil conditioner is 2.5-3.0kg per plant, ca...

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Abstract

The invention relates to a fertilization control method for chlorosis of branches and leaves of torreya grandis. The method comprises the steps of first fertilization: selecting time from December toJanuary of the following year, and applying a soil conditioner, a calcium magnesium phosphate fertilizer and a fertilizer of secondary nutrients around trunks of torreya grandis along crowns by adopting an annular ditching method; and second fertilization: selecting time from March to May of the following year and applying the soil conditioner, the calcium magnesium phosphate fertilizer and the fertilizer of secondary nutrients around the trunks of the torreya grandis along the crowns by adopting the annular ditching method. After control by adopting the method provided by the invention, growth potential of torreya grandis trees is enhanced, the torreya grandis trees are thick green in leaves, and thick and glossy in leaves, normal new shoots sprout from the branches with chlorosis, the yellowed branches gradually turn green, and the resistance of the torreya grandis to the chlorosis of branches and leaves is effectively enhanced.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a fertilization control method for the yellowing disease of Torreya torreya branches and leaves. Background technique [0002] Torreya grandis (scientific name: Torreya grandis), also known as Torreya grandis, is a species under the genus Torreya in the family Taxaceae, and is an evergreen coniferous tree. Up to 25m, diameter at breast height 2m. The trunk is straight, the big branches spread out, and the crown is broad and oval. Bark grayish-brown, shallow longitudinally split; dioecious, rarely monoecious, flowering in April; seeds oval or oblong, outer surface yellowish-brown to dark brown, slightly longitudinally ridged, one end bluntly rounded, with an ellipse Shaped hilum, slightly lighter in color, smoother, and slightly pointed at the other end. The seed coat is firm and brittle, and one seed kernel can be seen after breaking open, oval, with membranous outer endos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G17/00C05G3/80
CPCA01C21/005A01G17/005C05D3/02C05G3/80C05D5/00C05D9/00
Inventor 王峰马军伟俞巧钢孙万春王强林辉
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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