Method for preventing root rot of rhubarb

A prevention method and technology for root rot, applied in the fields of land preparation, botanical equipment and methods, seed immunity, etc., can solve the problems of difficult to control the development and spread of the disease, ineffective chemical control, poor control effect, etc., to prevent rhubarb root. Effect of rot, increased commodity level, and reduced incidence of disease

Inactive Publication Date: 2011-01-12
GANSU AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the prevention and control of rhubarb root rot is mainly to spray fungicides in the field and irrigate the roots with fungicides after the onset, and the control effect is very poor.
When symptoms of rhubarb root rot are found in the aboveground, the condition of the root is quite serious. At this time, it is difficult to control the development and spread of the disease, and chemical control is basically ineffective.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] On April 16, 2008, rhubarb seedlings were raised in Gangeba Village, Baiguan Township, Li County. No rhubarb has been planted in the seedling field for 4 years.

[0025] Soil treatment before seedling raising: on April 8, 2008, mix 1 part of 50% carbendazim wettable powder with 30 parts of fine sand and mix it into poisonous sand and apply it to the 0-10cm soil layer of the seedling breeding ground, 50% carbendazim wettable powder Application rate 9kg / hm 2 . Treatment nursery land 120m 2 .

[0026] Seed treatment before sowing: on April 15, 2008, 1 kg of rhubarb seeds were mixed with 50% carbendazim wettable powder 1000 times liquid, and the amount of liquid medicine was 6% of the seeds. After mixing well, cover the pile with plastic film for 10 hours , planted on April 16, 2008, 120m seedlings 2 .

[0027] Elimination of diseased seedlings: On April 14, 2009, the seedlings in the above-mentioned nursery grounds were dug out and strictly screened to select disease...

Embodiment 2

[0033] On March 28, 2008, rhubarb seedlings were raised in the herbarium of Gansu Agricultural University. No rhubarb has ever been planted in the seedling field.

[0034] Soil treatment before seedling raising: On March 19, 2008, mix 1 part of 50% carbendazim wettable powder with 30 parts of fine sand and mix it into poisonous sand and apply it to the 0-10cm soil layer of the seedling nursery, 50% carbendazim wettable powder Application rate 7kg / hm 2 . Treat 50m of seedling soil 2 .

[0035] Seed treatment before sowing: on March 27, 2008, the rhubarb seeds were mixed with 50% carbendazim wettable powder 1000 times liquid, and the amount of liquid medicine was 5% of the seeds. After mixing well, they were covered with plastic film and piled up for 15 hours. Sowing on March 28, 2019, raising seedlings 50m 2 .

[0036] Elimination of diseased seedlings: On March 15, 2009, the seedlings in the above-mentioned nursery grounds were dug out and strictly screened to select dis...

Embodiment 3

[0042] On April 22, 2008, 200 square meters of rhubarb were transplanted in Gangeba Village, Baiguan Township, Li County. No rhubarb has been planted in the transplanting area for 4 years.

[0043] Elimination of diseased seedlings: On April 20, 2008, the rhubarb seedlings purchased from Quanshui Market were strictly screened, and disease-free seedlings were selected, and all diseased seedlings were eliminated.

[0044] Treatment of dipping seedlings before transplanting: use 50% carbendazim wettable powder to prepare 1500 times liquid liquid medicine for the above selected seedlings, soak the root system of rhubarb seedlings in the liquid medicine for 3 minutes, remove and transplant immediately .

[0045] Transplanting soil treatment: Rhubarb transplanting was carried out on April 22, 2009. When transplanting, mix 1 part of 50% carbendazim wettable powder with 30 parts of fine sand and mix it into poisonous sand and apply it to the planting pit. The application rate of carb...

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PUM

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Abstract

The invention discloses a method for preventing root rot of rhubarb, which comprises the following steps: a. selection of seeding soil for crop rotation: wherein the period of crop-rotation is 4-6 years; b. soil treatment before seedling raising: in 7-10 days before seeding, mixing 1 portion of 50% carbendazol wettable powder and 30 portions of fine sand soil into bactericide sand soil, and applying the bactericide sand soil into a soil layer of 0-10 cm under the seedling raising field, wherein the application amount of the 50% carbendazol wettable powder is 6-10 kg / hm<2>; c. seed treatment before planting: in one day before planting, treating rhubarb seeds with a bactericide liquid prepared from water and the 50% carbendazol wettable powder according to 1000:1, covering with a plastic film to carry out pile fermentation for 10-15 hours, and then seeding, wherein the dose of the bactericide liquid is 5-6% of the amount of the seeds; d. elimination of diseased seedlings: lifting the seedlings in the next spring, wherein the seedlings is transplanted in the lifting process; and selecting non-diseased seedlings, and eliminating all the diseased seedlings; e. seedling dipping before transplanting: before transplanting, preparing a bactericide liquid from water and the 50% carbendazol wettable powder according to 1000-1500:1, keeping rhubarb germchit roots in the bactericide liquid for 3 minute, and immediately transplant; and f. soil treatment during transplanting: during transplanting, mixing 1 portion of 50% carbendazol wettable powder and 30 portions of fine sand soil into bactericide sand soil, and applying the bactericide sand soil into pits, wherein the application amount of the 50% carbendazol wettable powder is 7-11 kg / hm<2>.

Description

technical field [0001] The invention relates to the technical field of Chinese herbal medicine planting, and belongs to a method for preventing rhubarb root rot. Background technique [0002] Rhubarb is the dried root of Rheum palmatum L., R. palmatumvar.tanguticum Maxim.Ex Balf., or medicinal rhubarb (R.officinale Baill.), bitter in taste and cold in nature. , returns stomach meridian, large intestine meridian, liver meridian, spleen meridian. It has the effects of attacking stagnation, clearing damp and heat, purging fire, cooling blood, removing blood stasis, and detoxifying. Indications of excess heat constipation, stagnant abdominal pain, dysentery, damp heat jaundice and other diseases. Modern pharmacological and clinical studies have shown that rhubarb has many functions such as purging, antibacterial, anti-tumor, anti-hyperlipidemia, lowering blood pressure, invigorating the stomach, promoting choleresis, protecting the liver, strengthening the heart, reducing infl...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B79/00A01C1/08
Inventor 陈垣郭凤霞
Owner GANSU AGRI UNIV
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