Crop rotation cultivation method for efficiently preventing oilseed rape clubroot

A technology of rapeseed clubroot and cultivation method, which is applied in the field of crop rotation cultivation for efficient prevention and treatment of rapeseed clubroot, can solve the problems of ineffective prevention and treatment of clubroot, and cannot be popularized and implemented in a large area, so as to achieve disease index control, yield increase, The effect of reducing the incidence

Inactive Publication Date: 2017-03-22
INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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AI Technical Summary

Problems solved by technology

[0011] In addition, during the growth period of rapeseed, the temperature is high, the humidity is high, and diseases such as clubroot and sclerotinia occur from time to time. As a result, the rotation method of rice and rapeseed cannot effectively prevent and control clubroot, and it often takes more than 4 years of crop rotation to achieve good results. It has the effect of preventing and controlling clubroot, but this cannot be widely implemented in the case of shortage of agricultural land resources in our country.

Method used

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  • Crop rotation cultivation method for efficiently preventing oilseed rape clubroot
  • Crop rotation cultivation method for efficiently preventing oilseed rape clubroot

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Rapeseed crop rotation cultivation is carried out according to the following method:

[0035] (1) Seedling field arrangement: select the paddy fields with deep plowing layer and high soil thickness and strength for two years, remove the weeds and turn the field, the depth of the field is 20cm, and the moisture is removed every 1m, and the moisture depth is 1.2cm. Before sowing Apply 2500 kg / mu of decomposed organic fertilizer, 30 kg of ammonium phosphate, and 25 kg of potassium sulfate in 5 days;

[0036] (2) Previous crop soybeans: select high-quality soybean seeds, and sow soybeans at the end of April, with a seeding rate of ≤1g / m 2 ;

[0037](3) Fertilization: Soybeans are mature from the end of August to early September. After the soybeans are harvested, plow the field, dig a ditch and start rowing, the row spacing is 70cm, and the ditch depth is 1.5cm. Apply lime nitrogen in the ditch, and apply 60 kg per mu; In the first 5 days, apply 40 kg / mu of urea, 32 kg / mu ...

Embodiment 2

[0044] Rapeseed crop rotation cultivation is carried out according to the following method:

[0045] (1) Seedling field finishing: select the fields with deep plowing layer and high soil thickness and high strength for planting paddy rice for two years, plow the ground after removing weeds, the depth of plowing is 22cm, and the moisture is opened every 1.2m, and the moisture depth is 1.5cm. In the first 6 days, 3000 kg / mu of decomposed organic fertilizer, 32 kg of ammonium phosphate, and 26 kg of potassium sulfate were applied;

[0046] (2) Previous crop soybeans: select high-quality soybean seeds, and sow soybeans at the end of April, with a seeding rate of ≤1g / m 2 ;

[0047] (3) Fertilization: Soybeans are mature from the end of August to early September. After the soybeans are harvested, plow the field, dig a ditch and start rowing, with a row spacing of 75cm and a ditch depth of 1.8cm. Apply lime nitrogen in the ditch, and apply 65 kg per mu; In the first 6 days, apply 4...

Embodiment 3

[0054] Rapeseed crop rotation cultivation is carried out according to the following method:

[0055] (1) Seedling field arrangement: select the paddy fields with deep plowing layer and high soil thickness and strength for two years, plow the ground after removing weeds, the depth of plowing is 25cm, and the soil moisture is opened every 2m, and the moisture depth is 1.8cm. Before sowing Apply 3500 kg / mu of decomposed organic fertilizer, 35 kg of ammonium phosphate, and 28 kg of potassium sulfate in 7 days;

[0056] (2) Previous crop soybeans: select high-quality soybean seeds, and sow soybeans at the end of April, with a seeding rate of ≤1g / m 2 ;

[0057] (3) Fertilization: Soybeans are mature from the end of August to early September. After the soybeans are harvested, plow the field, dig a ditch and start rowing, the row spacing is 80cm, and the ditch depth is 2.0cm. Apply lime nitrogen in the ditch, and apply 70 kg per mu; In the first 7 days, apply 50 kg / mu of urea, 38 kg...

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Abstract

The invention provides a crop rotation cultivation method for efficiently preventing oilseed rape clubroot. The crop rotation cultivation method comprises the steps of (1) seedling field arrangement: selecting a seedling field where rice is planted for two years or above; (2) soybean planting: selecting high-quality soybean seeds, and sowing the soybean seeds in late April; (3) fertilization: harvesting soybeans, and applying a fertilizer required by oilseed rape 5 to 7 days before sowing; (4) oilseed rape seed treatment: selecting oilseed rape seeds, and airing the oilseed rape seeds for 8 to 10 h under sunlight; (5) oilseed rape seed sowing: sowing the oilseed rape seeds in two batches, with the sowing amount controlled to be smaller than or equal to 0.5 g / m<2>; (6) field management: watering the seeds every 4 to 6 days; (7) disease control: spreading 75% chlorothalonil, with the dosage controlled to be 180 g / mu; and (8) timely harvest: harvesting oilseed rape in late April, and carrying out one-year crop rotation of soybeans and oilseed rape. According to the oilseed rape crop rotation cultivation method, an efficient prevention function is achieved on oilseed rape clubroot, the incidence and disease index are controlled relatively well, and the crop yield increase is remarkable.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a crop rotation cultivation method for efficiently preventing and treating clubroot of rapeseed. Background technique [0002] Rapeseed, also known as rapeseed, bitter vegetable, and green vegetable, is listed as the four major oil crops in my country along with soybeans, peanuts, and sesame. It is not only the main raw material for edible oil, but also an important industrial raw material and a major biological resource for future renewable energy. The oil content of rapeseed is about 33%, which provides high-quality edible oil necessary for people's life. Rapeseed oil with high erucic acid content can also be used as lubricating oil for mechanical processing and textile industry. The cake residue after oil extraction from rapeseed contains 36% crude protein, which has high nutritional value and is an excellent feed for livestock and poultry. In addition, ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G13/00
CPCA01G13/00A01G22/00
Inventor 张蕾刘勇黄小琴伍文宪尹全王东周西全向运佳
Owner INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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