CN114793806A - Method for effectively controlling potato late blight - Google Patents

Method for effectively controlling potato late blight Download PDF

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Publication number
CN114793806A
CN114793806A CN202210330875.2A CN202210330875A CN114793806A CN 114793806 A CN114793806 A CN 114793806A CN 202210330875 A CN202210330875 A CN 202210330875A CN 114793806 A CN114793806 A CN 114793806A
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fertilizer
potato
late blight
compound fertilizer
content
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CN202210330875.2A
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Chinese (zh)
Inventor
王芳
鲁宇文
严成其
葛体达
吴列洪
周金波
毕继安
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Ningbo Academy of Agricultural Sciences
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Ningbo Academy of Agricultural Sciences
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • A01G22/25—Root crops, e.g. potatoes, yams, beet or wasabi
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • A01C1/06—Coating or dressing seed
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D1/00—Fertilisers containing potassium
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80—Soil conditioners

Abstract

The invention provides a method for effectively controlling potato late blight, which comprises the following steps: s1: preparing a compound fertilizer: according to the formula (30-50): (250-350): (50-70) preparing a compound fertilizer, a carbon-based fertilizer and an organic fertilizer according to the weight ratio; the organic fertilizer is a commercially available organic fertilizer; s2, field management: plowing the potato planting land, applying the compound fertilizer of the step S1 into the plowed field at one time while planting potato seeds into the field; s3: harvesting: and (4) harvesting the seed potatoes planted in the step S2 after the seed potatoes are ripe. The invention solves the problem of high incidence rate of the potato late blight, provides a control method with lower cost and simple process, and has higher commercial value.

Description

Method for effectively controlling potato late blight
Technical Field
The invention relates to the field of potato disease control, in particular to a method for effectively controlling potato late blight.
Background
Potatoes (the name of the science: Solanum tuberosum L.) belong to the solanaceae and are annual herbaceous plants, tubers are edible, are the fourth most important grain crops in the world, and are second only to wheat, rice and corn. The potato is also called potato, yam, taro, sweet potato, yam, yangtao, sweet potato, etc. (the same area in Shanxi province is also called yam). Some provinces in the south, also called "winter potatoes", are often planted in winter after harvesting rice in autumn. Potatoes are called differently in different countries, such as Irish sweet potato in the United states, Dutch potato in Russia, apple in France, pear in Germany, French bean in Italy, baba in Peru, etc. And wheat, rice, corn and sorghum are called as five crops in the world. The potato tubers contain a large amount of starch, can provide abundant heat for human bodies, are rich in protein, amino acid, various vitamins and minerals, particularly the vitamin content of the potato tubers is the most complete of all food crops, and the potatoes are a secondary staple food in European and American countries, particularly North America. Potatoes are native to the andes mountain area in south america, and the history of artificial cultivation dates back to the south region of peru from 8000 to 5000 years before the first yen. The main producing countries of potatoes are China, Russia, India, Ukrainian, America and the like, and China is the country with the most total production of potatoes in the world.
The potato late blight is one of the main diseases of potatoes, the disease is common in most areas in the middle and north of China, the loss degree of the disease is different according to different climatic conditions of each place, and under the condition of being suitable for disease prevalence, plants die in advance, so that the yield loss can be caused by 20-40%. The potato late blight has outbreak and destructive properties, is the most threatening mycological disease in the potato production process, can cause the yield of potatoes to be reduced by 20-80 percent, even can cause the loss of the potatoes, and seriously influences the development of the potato industry in China.
At present, the measure for preventing and treating the potato late blight is that 1, breeding disease-resistant varieties, but the breeding time of the disease-resistant varieties is long and the difficulty is large; 2. improving cultivation measures, strengthening field management, strengthening the requirement of the field management on soil, and realizing crop rotation and stubble rotation; 3. biocontrol bacteria and botanical pesticides are adopted, so that the control rate of biological control on diseases is low, and the process is complex; 4. chemical agent treatment of the seed potatoes can cause chemical agent residues. The methods can not effectively control the potato late blight, or have high cost and complex process, need to spend a large amount of manpower and material resources, and can not be well applied to actual cultivation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for effectively controlling potato late blight, solving the problem that the conventional means cannot solve the problem of high incidence rate of the potato late blight at present, and providing a control method with low cost and simple process.
In order to solve the problems, the invention provides a method for effectively controlling potato late blight, which comprises the following steps:
s1: preparing a compound fertilizer: according to the formula (30-50): (250-350): (50-70) preparing a compound fertilizer, a carbon-based fertilizer and an organic fertilizer according to the weight ratio; the organic fertilizer is a commercially available organic fertilizer;
s2, field management: plowing a potato planting field, applying the compound fertilizer of the step S1 into the field at one time while plowing the field, and planting potato seeds into the field;
s3: harvesting: and (4) harvesting the seed potatoes planted in the step S2 after the seed potatoes are ripe.
The invention is prepared by (30-50): (250-350): (50-70) the compound fertilizer, the carbon-based fertilizer and the organic fertilizer are prepared according to the weight ratio, the incidence rate of the potato late blight can be reduced, the process is simple, and the yield of the potatoes can be further improved on the premise that the incidence rate of the late blight is reduced.
Preferably, in the step S1, the compound fertilizer is a 15-15-15 compound fertilizer, the effective nitrogen content, the effective phosphorus content and the effective potassium content in the compound fertilizer are all greater than or equal to 15% by mass, the compound fertilizer further includes selenase bacteria, and the addition amount of the selenase bacteria is 0.01% of the weight of the compound fertilizer.
Preferably, in step S1, the carbon-based fertilizer includes biochar, calcium oxide, potassium oxide, magnesium oxide, and humic acid, and the content of biochar is greater than or equal to 10% by mass, and the effective calcium content, the effective boron content, and the effective nitrogen content of the carbon-based fertilizer are greater than or equal to 150g/L, 120g/L, and 15g/L, respectively.
As a preferable scheme, in the step S1, the weight ratio of the compound fertilizer, the carbon-based fertilizer and the organic fertilizer is 40: 300: 60.
preferably, the method further includes a step of disinfecting the field after the step S1 and before the step S2, and the method includes: and (3) disinfecting the soil by adopting chlorine dioxide powder, and adding the bacillus subtilis and the biological bacterial fertilizer after disinfection to restore the activity of the soil.
Preferably, in step S2, the planting time of the seed potatoes is sunny day and the water content of the soil is less than 40%.
Preferably, in the step S2, the seed potatoes are virus-free seed potatoes, and the virus-free seed potatoes are free of diseases, insects and mechanical damages.
Preferably, in step S2, the method further includes a seed potato processing step before planting, including: the seed potatoes are dressed by 50 percent of plant ash, 30 percent of Daseng manganese zinc and 20 percent of selenase bacteria.
Preliminary disease prevention can be carried out on the potato seeds through seed dressing treatment, and the late blight resistance of the potato seeds can be improved to the maximum extent through 50% plant ash, 30% Dyson manganese zinc and 20% selenium enzyme bacteria.
Preferably, the method further includes a step of spraying a selenase bacteria preparation after the step S2 and before the step S3, and the method includes: after the seedlings of the potato seeds grow to 10-20 centimeters, the seedlings are diluted by 500-fold and 700-fold with 1000 g/mu of selenase bacteria preparation for spraying.
The disease resistance of potato seeds can be further improved by spraying the selenase preparation, and the disease resistance is improved by the synergistic effect of the selenase preparation and the potato seed treatment.
The invention adopts the carbon-based fertilizer and the organic fertilizer, which can effectively improve the yield of the potatoes and improve the commodity of the potatoes. Reduce the incidence rate of the potato late blight. The invention achieves the purposes of weight and medicine reduction, green and safe ecological cultivation and has no harm to soil, the problem of high incidence rate of potato late blight is solved by the synergistic effect of seed dressing treatment on seed potatoes before planting and secondary selenzyme treatment by spraying diluted selenzyme preparation after the seed potatoes grow, and the yield and the individual size of the potatoes can be further improved on the basis of solving the high incidence rate of the late blight by the compound fertilizer, the carbon-based fertilizer and the organic fertilizer compounded by the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a method for effectively controlling potato late blight, which comprises the following steps:
s1: preparing a compound fertilizer: according to the formula (30-50): (250-350): (50-70) preparing a compound fertilizer, a carbon-based fertilizer and an organic fertilizer according to the weight ratio; the organic fertilizer is a commercially available organic fertilizer;
s2, field management: plowing the potato planting land, applying the compound fertilizer of the step S1 into the plowed field at one time while planting potato seeds into the field;
s3: harvesting: and (4) harvesting the seed potatoes planted in the step S2 after the seed potatoes are ripe.
Preferably, in step S1. The compound fertilizer is 15-15-15, and the effective nitrogen content, the effective phosphorus content and the effective potassium content in the compound fertilizer are all more than or equal to 15% by mass ratio.
Preferably, in the step S1, the carbon-based fertilizer includes biochar, calcium oxide, potassium oxide, magnesium oxide, and humic acid, and the content of biochar is greater than or equal to 10% by mass, and the available calcium content, the available boron content, and the available nitrogen content of the carbon-based fertilizer are greater than or equal to 150g/L, 120g/L, and 15g/L, respectively.
Preferably, in step S1, the weight ratio of the compound fertilizer, the carbon-based fertilizer and the organic fertilizer is 40: 300: 60.
preferably, the method further includes a step of disinfecting the field after the step S1 and before the step S2, and the method includes: the soil is disinfected by chlorine dioxide powder, and the disinfected soil is added with bacillus subtilis and biological bacterial manure to restore the activity of the soil.
Preferably, in step S2, the planting time of the seed potatoes is sunny day and the water content of the soil is less than 40%.
Preferably, in the step S2, the selected potato seeds are virus-free potato seeds, and the virus-free potato seeds are free from diseases, pests and mechanical damage.
Preferably, in step S2, the potato seed before planting further comprises a seed treatment step, including: the seed potatoes are dressed by 50 percent of plant ash, 30 percent of Daseng manganese zinc and 20 percent of selenase bacteria.
Preferably, the method further comprises a step of spraying a selenase bacteria preparation after the step S2 and before the step S3, wherein the step comprises the following steps: after the seedlings of the potato seeds grow to 10-20 centimeters, the seedlings are diluted by 500-fold and 700-fold with 1000 g/mu of selenase bacteria preparation for spraying.
The above-described aspects of the invention are described below with specific data:
example 1:
s1: preparing a compound fertilizer: according to the weight ratio of 30: 250: preparing a compound fertilizer, a carbon-based fertilizer and an organic fertilizer according to the weight ratio of 50; the organic fertilizer is a commercially available organic fertilizer; the compound fertilizer is 15-15-15 compound fertilizer, and the concrete componentsIs divided into N, P 2 O 5 、K 2 And O is calculated according to the mass ratio, the content of available nitrogen, the content of available phosphorus and the content of available potassium in the compound fertilizer are all more than or equal to 15%, the compound fertilizer also comprises selenase bacteria, and the addition amount of the selenase bacteria is 0.01% of the weight of the compound fertilizer. (ii) a The carbon-based fertilizer comprises biochar, calcium oxide, potassium oxide, magnesium oxide and humic acid, and the content of the biochar is more than or equal to 10 percent in mass ratio, the effective calcium content of the carbon-based fertilizer is more than or equal to 150g/L, the effective boron content of the carbon-based fertilizer is more than or equal to 120g/L, and the effective nitrogen content of the carbon-based fertilizer is more than or equal to 15 g/L;
s2, field management: disinfecting soil by adopting chlorine dioxide powder, and adding bacillus subtilis and biological bacterial manure after disinfection to restore soil activity; ploughing the planting land of the potatoes, applying the compound fertilizer obtained in the step S1 into the ploughed field at one time while ploughing the field, mixing the virus-free potato seeds without pests and mechanical injury with 50% of plant ash, 30% of Dyson manganese zinc and 20% of selenium enzyme bacteria, and planting the mixture into the field;
the step S2 is followed by a step of spraying a selenase preparation, which comprises: after the potato seedlings grow to 10 centimeters, the selenium enzyme preparation is diluted by 500 times by 1000 g/mu, and then the selenium enzyme preparation is sprayed.
S3: harvesting: and (4) harvesting the seed potatoes planted in the step S2 after the seed potatoes are ripe.
Example 2:
s1: preparing a compound fertilizer: according to the following weight ratio of 50: 350: 70, preparing a compound fertilizer, a carbon-based fertilizer and an organic fertilizer in a weight ratio; the organic fertilizer is a commercially available organic fertilizer; the compound fertilizer is 15-15-15, the content of available nitrogen, the content of available phosphorus and the content of available potassium in the compound fertilizer are all more than or equal to 15% by mass ratio, the compound fertilizer also comprises selenium enzyme bacteria, and the addition amount of the selenium enzyme bacteria is 0.01% of the weight of the compound fertilizer. (ii) a The carbon-based fertilizer comprises biochar, calcium oxide, potassium oxide, magnesium oxide and humic acid, and the content of the biochar is more than or equal to 10 percent in mass ratio, the effective calcium content of the carbon-based fertilizer is more than or equal to 150g/L, the effective boron content of the carbon-based fertilizer is more than or equal to 120g/L, and the effective nitrogen content of the carbon-based fertilizer is more than or equal to 15 g/L;
s2, field management: disinfecting soil by adopting chlorine dioxide powder, and adding bacillus subtilis and biological bacterial manure after disinfection to restore soil activity; ploughing the planting land of the potatoes, applying the compound fertilizer obtained in the step S1 into the ploughed field at one time while ploughing the field, mixing the virus-free potato seeds without pests and mechanical injury with 50% of plant ash, 30% of Dyson manganese zinc and 20% of selenium enzyme bacteria, and planting the mixture into the field;
the step S2 is followed by a step of spraying a selenase bacteria preparation, comprising: after the potato seedlings grow to 15 centimeters, the selenium enzyme preparation is diluted by 600 times by 1000 g/mu, and then the selenium enzyme preparation is sprayed.
S3: harvesting: and (4) harvesting the seed potatoes planted in the step S2 after the seed potatoes are ripe.
Example 3:
s1: preparing a compound fertilizer: according to the following steps of 40: 300: 60, preparing a compound fertilizer, a carbon-based fertilizer and an organic fertilizer in a weight ratio; the organic fertilizer is a commercially available organic fertilizer; the compound fertilizer is 15-15-15, the content of available nitrogen, the content of available phosphorus and the content of available potassium in the compound fertilizer are all more than or equal to 15% by mass ratio, the compound fertilizer also comprises selenium enzyme bacteria, and the addition amount of the selenium enzyme bacteria is 0.01% of the weight of the compound fertilizer. (ii) a The carbon-based fertilizer comprises biochar, calcium oxide, potassium oxide, magnesium oxide and humic acid, and the content of the biochar is more than or equal to 10 percent in mass ratio, the effective calcium content of the carbon-based fertilizer is more than or equal to 150g/L, the effective boron content of the carbon-based fertilizer is more than or equal to 120g/L, and the effective nitrogen content of the carbon-based fertilizer is more than or equal to 15 g/L;
s2, field management: disinfecting soil by adopting chlorine dioxide powder, and adding bacillus subtilis and biological bacterial manure after disinfection to restore soil activity; ploughing the planting land of the potatoes, applying the compound fertilizer obtained in the step S1 into the ploughed field at one time while ploughing the field, mixing the virus-free potato seeds without pests and mechanical injury with 50% of plant ash, 30% of Dyson manganese zinc and 20% of selenium enzyme bacteria, and planting the mixture into the field;
the step S2 is followed by a step of spraying a selenase bacteria preparation, comprising: after the potato seedlings grow to 20 centimeters, the selenium enzyme preparation is diluted by 700 times by 1000 g/mu, and then the selenium enzyme preparation is sprayed.
S3: harvesting: and (4) harvesting the seed potatoes planted in the step S2 after the seed potatoes are ripe.
Taking the preferred embodiment 2 of the present invention as an example, the comparison with potatoes planted with other fertilizers subjected to fertilization is specifically as follows:
comparative and field test design
The method comprises the following steps of: detoxicated potato (the variety does not resist late blight)
The experiment was performed in a randomized block arrangement, 12 cells, and three replicates. Each cell area is 21 square meters. 120 plants were planted. The experimental design was treated with four treatments:
example 2:
s1: preparing a compound fertilizer: preparing a compound fertilizer according to the weight ratio of 40kg of compound fertilizer to 300kg of carbon-based fertilizer to 60kg of organic fertilizer per mu; the organic fertilizer is a commercially available organic fertilizer; the compound fertilizer is 15-15-15, the content of available nitrogen, the content of available phosphorus and the content of available potassium in the compound fertilizer are all more than or equal to 15% by mass ratio, the compound fertilizer also comprises selenium enzyme bacteria, and the addition amount of the selenium enzyme bacteria is 0.01% of the weight of the compound fertilizer. (ii) a The carbon-based fertilizer comprises biochar, calcium oxide, potassium oxide, magnesium oxide and humic acid, and the content of the biochar is more than or equal to 10 percent in mass ratio, the effective calcium content of the carbon-based fertilizer is more than or equal to 150g/L, the effective boron content of the carbon-based fertilizer is more than or equal to 120g/L, and the effective nitrogen content of the carbon-based fertilizer is more than or equal to 15 g/L;
s2, field management: disinfecting soil by adopting chlorine dioxide powder, and adding bacillus subtilis and biological bacterial manure after disinfection to restore soil activity; ploughing the planting land of the potatoes, applying the compound fertilizer obtained in the step S1 into the ploughed field at one time while ploughing the field, mixing the virus-free potato seeds without pests and mechanical injury with 50% of plant ash, 30% of Dyson manganese zinc and 20% of selenium enzyme bacteria, and planting the mixture into the field;
comparative example 1:
the comparative example 1 and the comparative example 2 of the invention have the same other conditions, except that the fertilizer used is different from the fertilizer used in the example 2 of the invention, and specifically comprises the following components: 80kg of compound fertilizer per mu and 2.52kg of compound fertilizer per unit.
Comparative example 2:
comparative example 2 is identical to comparative example 2 of the present invention in other conditions, except that the fertilizer used is different from example 2 of the present invention, and specifically includes: 40kg of organic fertilizer and 360kg of organic fertilizer per mu, 1.26kg of compound fertilizer and 11.35kg of organic fertilizer per unit.
Comparative example 3:
the comparative example 3 is the same as the comparative example 2 of the invention in other conditions, and the difference is that the fertilizer adopted is different from the example 2 of the invention, and chemical agents are adopted to prevent and treat late blight, and the specific steps comprise: 40kg of organic fertilizer and 360kg of organic fertilizer per mu, 1.26kg of compound fertilizer and 11.35kg of organic fertilizer per unit. Chemical agents are adopted for control during the growth period of plants.
In the above tests of example 2 and comparative examples 1 to 3, the test fields required smooth fields, easy drainage and open field cultivation. The sowing time is 2021 year, 2 month and 4 days, the harvesting time is 2021 year, 5 month and 6 days, the tuber characters, the cell yield and the field diseases of the above examples are adjusted and counted, and the results are shown in tables 1-3.
Table 1: tuber character record table
Figure BDA0003573047270000081
Table 2: cell yield record table
Figure BDA0003573047270000082
Figure BDA0003573047270000091
Table 3: disease questionnaire in field (survey 7 to 10 days before harvest)
Figure BDA0003573047270000092
With different treatments as shown in tables 1-3, we have statistically shown that: compared with the comparative example, the potato yield of the embodiment 2 is highest, the proportion of the medium potatoes to the large potatoes is high, the commodity of the potatoes is improved, and the incidence rate of late blight is 0; the incidence of comparative example 1 was 91.7% and the yield was the lowest; the incidence of disease in comparative example 2 was 35%, while the use of chemical agents in comparative example 3, although reducing the incidence of disease, resulted in the generation of agent residue. In conclusion, the method for effectively controlling the potato late blight effectively controls the occurrence of the potato late blight, and has high yield and high potato growth rate.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.

Claims (9)

1. A method for effectively controlling potato late blight is characterized by comprising the following steps: the method comprises the following steps:
s1: preparing a compound fertilizer: according to the formula (30-50): (250-350): (50-70) preparing a compound fertilizer, a carbon-based fertilizer and an organic fertilizer according to the weight ratio; the organic fertilizer is a commercially available organic fertilizer;
s2, field management: plowing the potato planting land, applying the compound fertilizer of the step S1 into the plowed field at one time while planting potato seeds into the field;
s3: harvesting: and (4) harvesting the seed potatoes planted in the step S2 after the seed potatoes are ripe.
2. The method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: in the step S1, the compound fertilizer is 15-15-15 compound fertilizer, and the effective nitrogen content, the effective phosphorus content and the effective potassium content in the compound fertilizer are all more than or equal to 15% by mass ratio.
3. The method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: in the step S1, the carbon-based fertilizer comprises biochar, calcium oxide, potassium oxide, magnesium oxide and humic acid, and the content of the biochar is greater than or equal to 10% by mass, the effective calcium content of the carbon-based fertilizer is greater than or equal to 150g/L, the effective boron content of the carbon-based fertilizer is greater than or equal to 120g/L, and the effective nitrogen content of the carbon-based fertilizer is greater than or equal to 15 g/L.
4. The method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: in the step S1, the weight ratio of the compound fertilizer, the carbon-based fertilizer and the organic fertilizer is 40: 300: 60.
5. the method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: the method further comprises a step of disinfecting the field after the step S1 and before the step S2, wherein the step of disinfecting the field comprises the following steps: the soil is disinfected by chlorine dioxide powder, and the disinfected soil is added with bacillus subtilis and biological bacterial manure to restore the activity of the soil.
6. The method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: in the step S2, the planting time of the seed potatoes is sunny day and the water content of the soil is less than 40%.
7. The method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: in the step S2, the selected potato seeds are virus-free potato seeds which are free from diseases, insects and mechanical damage.
8. The method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: the potato seed further comprises a seed potato treatment step before planting, comprising: the seed potatoes are dressed by 50 percent of plant ash, 30 percent of Daseng manganese zinc and 20 percent of selenase bacteria.
9. The method of claim 1, wherein the effective control of potato late blight is selected from the group consisting of: the method also comprises a step of spraying a selenase bacteria preparation after the step S2 and before the step S3, and comprises the following steps: after the seedlings of the potato seeds grow to 10-20 centimeters, the seedlings are diluted by 500-fold and 700-fold with 1000 g/mu of selenase bacteria preparation for spraying.
CN202210330875.2A 2022-03-30 2022-03-30 Method for effectively controlling potato late blight Pending CN114793806A (en)

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Publication number Priority date Publication date Assignee Title
CN102577810A (en) * 2012-03-09 2012-07-18 四川省农业科学院作物研究所 Prevention and control method of potato late blight
CN103907459A (en) * 2014-04-01 2014-07-09 甘肃农业大学 Potato planting method
CN105284370A (en) * 2015-11-04 2016-02-03 巫溪县薯光农业科技开发有限公司 Culture method for virus-free selenium-enriched potatoes
CN105409500A (en) * 2015-11-04 2016-03-23 巫溪县薯光农业科技开发有限公司 Cultivation method of virus-free seed tuber of Solanum tuberosum
CN113287477A (en) * 2021-07-05 2021-08-24 襄阳市农业科学院 Potato planting method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102577810A (en) * 2012-03-09 2012-07-18 四川省农业科学院作物研究所 Prevention and control method of potato late blight
CN103907459A (en) * 2014-04-01 2014-07-09 甘肃农业大学 Potato planting method
CN105284370A (en) * 2015-11-04 2016-02-03 巫溪县薯光农业科技开发有限公司 Culture method for virus-free selenium-enriched potatoes
CN105409500A (en) * 2015-11-04 2016-03-23 巫溪县薯光农业科技开发有限公司 Cultivation method of virus-free seed tuber of Solanum tuberosum
CN113287477A (en) * 2021-07-05 2021-08-24 襄阳市农业科学院 Potato planting method

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