Cultivation method of black pearl rice

Abstract

The invention belongs to the technical field of rice cultivation, and particularly relates to a black pearl rice cultivation method which comprises the following steps: S1, seed selection: hybridizing rice in Dabie Mountain of Hubei province; s2, breeding: performing detoxification treatment on the seeds, drying in the sun for 1-2 days, selecting full seeds with high maturity, and cleaning the seeds twice with saline water; land with fertile soil is selected, it is ensured that all land parcels can be planted in a unified mode, and watering is convenient; s4, sufficient base fertilizer application, wherein operation is conducted through a fertilizer sowing machine; s5, ploughing: performing fine preparation and raking, making the upper part virtual and the lower part solid, and performing fine soil preparation; s6, sowing: sowing uniformly by using a rotary tillage drill seeder; s7, watering: watering within one day after sowing; s8, closed weeding, wherein weeding closed liquid medicine is sprayed on the second day after watering; the black pearl rice cultivated through the method is high in yield, good in rice taste and high in quality, the cultivation method is convenient to operate, the breeding work intensity is relieved, the breeding work efficiency is improved, and the method has important significance in accelerating the new variety cultivation process.

Description

Technical Field

[0001] This invention belongs to the field of rice cultivation technology, specifically relating to a method for cultivating black pearl rice. Background Technology

[0002] Rice is the staple food of the Chinese people. With rising living standards and a continued trend of population growth and shrinking arable land, the demand for high-quality rice is increasing daily. Meanwhile, the quality of rice cultivation techniques determines my country's rice yield. Therefore, continuously improving planting techniques and promoting and applying advanced technologies to increase rice production is of great significance to the development of my country's national economy. To increase rice yield, improve rice quality, and ensure a stable supply, developing a cultivation method for black pearl rice is crucial. Summary of the Invention

[0003] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a method for cultivating black pearl rice to solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A method for cultivating black pearl rice includes the following steps: S1. Seed selection: It was developed by hybridization of wild rice from the Dabie Mountains in Hubei Province; S2. Breeding: Detoxify the seeds with biological detoxifying agents, sun-dry for 1-2 days, select seeds with plump grains and high maturity, and wash them twice with salt water. S3. Site selection: Select fertile, loose soil with high organic matter content to ensure uniform planting in each plot and to ensure convenient irrigation. S4. Apply sufficient base fertilizer: Use a fertilizer planter to apply nitrogen, phosphorus, and potassium compound fertilizer in a reasonable manner, and apply micronutrient fertilizers in a reasonable manner. S5. Tillage: Immediately after applying base fertilizer, tillage or rotary tillage should be carried out. The tillage should be finely prepared and leveled, with a loose topsoil and firm bottom. S6. Sowing: Use a rotary tiller to sow the seeds evenly; S7. Watering: The first watering should be flooded, and watering should be done within one day after sowing. S8. Pre-emergence weed control: Apply pre-emergence herbicide the day after watering. The application is carried out using a self-propelled, plant protection machine, or electric sprayer. For small planting areas, manual spraying can be used. S9. Pest and disease control: Apply pesticides during three key periods: about 20 days after sowing, at the end of tillering, and at the heading stage.

[0005] Furthermore, in step S3, determining the land plots for convenient irrigation requires ensuring approximately one well per 60 acres.

[0006] Furthermore, in step S4, the base fertilizer depth is 8-10 cm, and 20-30 kg / mu of nitrogen, phosphorus, and potassium compound fertilizer is applied.

[0007] Furthermore, in step S5, the soil is rotary tilled to a depth of 12-15 cm.

[0008] Furthermore, in step S6, the rotary tiller seeder has a row spacing of 20 cm, a seeding depth of 1.5-2 cm, locally not exceeding 3 cm, a seeding rate of 15 catties / mu, and a plant spacing of 5-7 seeds per 10 cm.

[0009] Furthermore, in step S8, the main components of the pre-emergent herbicide are: 130g of 60% oxadiazon, 65g of 16% pendimethalin, 10g of 10% pyrimisulfuron, and 100g of 60% butachlor.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The high-zinc, high-calcium rice developed in this invention has a growth period of 118-132 days, requires an activity temperature of ≥10℃, and an effective accumulated temperature of 2300-2700℃. The plant height is 89-90 cm, with a semi-compact panicle type. It is suitable for cultivation in medium fertility, exhibits strong disease and lodging resistance, is tolerant to cold damage, and has moderate to strong tillering. The panicle length is 20 cm, with an average of 90 grains per panicle and a thousand-grain weight of 16 grams. It has good taste, excellent quality, and is easy to cultivate. This invention is of great significance in reducing the intensity of breeding work, improving breeding efficiency, and accelerating the process of developing new varieties. Detailed Implementation

[0011] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to embodiments. Example

[0012] A method for cultivating black pearl rice according to the present invention includes the following steps: S1. Seed selection: Hybridized from wild rice from the Dabie Mountains in Hubei Province; S2. Breeding: Detoxify the seeds with biological detoxifying agents, sun-dry for 1-2 days, select seeds with plump grains and high maturity, and wash them twice with salt water. S3. Site selection: Select fertile, loose soil with high organic matter content to ensure uniform planting in each plot. Also, ensure that the plots are convenient for irrigation, with a well for about 60 acres. S4. Apply sufficient base fertilizer: Use a fertilizer planter to apply base fertilizer to a depth of 8-10 cm, and apply nitrogen, phosphorus and potassium compound fertilizer (20-30 kg / mu) in a reasonable manner, and apply micronutrient fertilizers in a reasonable manner. S5. Tillage: Immediately after applying base fertilizer, tillage or rotary tillage should be carried out. The tillage should be fine and leveled, with a loose topsoil and firm bottom. The depth of rotary tillage should be 12-15 cm. S6. Sowing: Use a rotary tillage seeder with a row spacing of 20 cm to sow seeds at a depth of 1.5-2 cm, with no more than 3 cm in some areas. The seed rate is 15 catties / mu. Sow evenly and control the plant spacing to 10 cm for 5-7 seeds. S7. Watering: The first watering should be flooded, and watering should be done within one day after sowing. S8. Pre-emergence herbicide application: Apply pre-emergence herbicide the day after watering. The main components of the pre-emergence herbicide are: 130g of 60% oxadiazon, 65g of 16% pendimethalin, 10g of 10% pyrimisulfuron, and 100g of 60% butachlor. Application can be carried out using a self-propelled, plant protection machine, or electric sprayer. For small planting areas, manual spraying can be used. Select the appropriate herbicide according to the types of weeds in the local area. Before spraying, it is necessary to understand the weather conditions for the next 3-5 days. It is best to choose a windless and rainless period. S9. Pest and disease control: Apply pesticides at three key times: about 20 days after sowing, at the end of tillering, and at the heading stage. The first application is in early July, mainly to control rice sheath blight, rice leaf roller, and white-backed planthopper, while also controlling the second generation of rice leaf roller, rice locust, and rice blast. The second application is around July 25, mainly to control the second generation of rice stem borer, rice planthopper, third generation of rice leaf roller, and rice sheath blight, while also controlling rice blast, rice leaf roller, and bacterial blight. The third application is in mid-August, during the heading and panicle emergence stage, mainly to control neck blast, rice false smut, and the third generation of rice stem borer, while also controlling rice planthopper and rice sheath blight.

[0013] If the field is dry after the seedlings have emerged, water them in time to protect them. If there is local weeding, apply herbicide twice. Spray when the rice seedlings have 5-7 leaves, and irrigate and fertilize 2-3 days later. It is recommended to use 15-20 kg of humic acid urea per mu to promote seedling growth. Fertilize only after the weeds are dead to prevent weeds from rebounding.

[0014] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for cultivating black pearl rice, characterized in that, Includes the following steps: S1. Seed selection: It was developed by hybridization of wild rice from the Dabie Mountains in Hubei Province; S2. Breeding: Detoxify the seeds with biological detoxifying agents, sun-dry for 1-2 days, select seeds with plump grains and high maturity, and wash them twice with salt water. S3. Site selection: Select fertile, loose soil with high organic matter content to ensure uniform planting in each plot and to ensure convenient irrigation. S4. Apply sufficient base fertilizer: Use a fertilizer planter to apply nitrogen, phosphorus, and potassium compound fertilizer in a reasonable manner, and apply micronutrient fertilizers in a reasonable manner. S5. Tillage: Immediately after applying base fertilizer, tillage or rotary tillage should be carried out. The tillage should be finely prepared and leveled, with a loose topsoil and firm bottom. S6. Sowing: Use a rotary tiller to sow the seeds evenly; S7. Watering: The first watering should be flooded, and watering should be done within one day after sowing. S8. Pre-emergence weed control: Apply pre-emergence herbicide the day after watering. The application is carried out using a self-propelled, plant protection machine, or electric sprayer. For small planting areas, manual spraying can be used. S9. Pest and disease control: Apply pesticides during three key periods: about 20 days after sowing, at the end of tillering, and at the heading stage.

2. The method for cultivating black pearl rice as described in claim 1, characterized in that: In step S3, to ensure convenient irrigation for the plot, it is necessary to ensure that there is one well for every 60 acres.

3. The method for cultivating black pearl rice as described in claim 2, characterized in that: In step S4, the base fertilizer is applied at a depth of 8-10 cm, and 20-30 kg / mu of nitrogen, phosphorus, and potassium compound fertilizer is applied.

4. The method for cultivating black pearl rice as described in claim 3, characterized in that: In step S5, the soil is rotary tilled to a depth of 12-15 cm.

5. The method for cultivating black pearl rice as described in claim 4, characterized in that: In step S6, the rotary tiller seeder has a row spacing of 20 cm, a seeding depth of 1.5-2 cm, and locally no more than 3 cm. The seeding rate is 15 catties / mu, and the plant spacing can be controlled at 10 cm for 5-7 seeds.

6. The method for cultivating black pearl rice as described in claim 5, characterized in that: In step S8, the main components of the pre-emergence herbicide are: 130g of 60% butachlor, 65g of 16% pendimethalin, 10g of 10% pyrimisulfuron, and 100g of 60% butachlor.