Key High-Yield Cultivation Techniques for Sunflower 363

The shell of 363 sunflower seeds has an irregular white stripe on a black base, with sharp black-and-white contrast; compared with other sunflower seeds, the taste is sweeter and the kernels are fuller. So what are the key points and precautions for high-yield cultivation techniques for 363 sunflowers?

I. Key High-Yield Cultivation Techniques for 363 Sunflowers

1. Land preparation

It is advisable to choose plots with well-irrigation conditions, and avoid plots that have been continuously cropped or cropped in consecutive years. Land can be prepared first, then mulched, and then watered and fertilized.

2. Mulching and sowing

Use 90 cm wide plastic film. Before sowing, mechanically lay the film and pipes, covering two rows with one sheet of film, with a sowing depth of 2-3 cm, and lightly cover with soil after sowing. The film-laying quality should ensure that the film fits tightly against the ground; cover damaged areas firmly with soil and make one horizontal soil band every 5-10 m or so to prevent the film from being damaged when the wind blows. After mulching, sow manually, with 1-2 seeds per hole and a sowing rate of about 0.5 kg per mu. After mulching and sowing hybrid varieties, open the gate promptly and water with drip pipes.

3. Field management

First: Check seedlings and fill gaps. For longer sections with missing seedlings, carry out artificial germination and reseeding; for shorter sections with missing seedlings, keep double seedlings nearby;

Second: Cultivation and weeding. One week before sowing, use herbicide for weeding at 1 mu; after emergence, promptly remove weeds between the plastic film by hand;

Third: Fertilizer and water management. According to the characteristics of this 363 sunflower variety, apply 30 kg of special sunflower fertilizer per mu before sowing, and during the bud stage apply 20 kg of urea per mu along with watering. At the flowering stage, water a second time; watering should be shallow and quick to prevent lodging and bacterial wilt.

Fourth: Strengthen pollination. For large, concentrated plots, use bee pollination; where conditions permit, artificial supplementary pollination should also be carried out to increase the seed-setting rate of sunflowers.

Fifth: Pest and disease control. To control sclerotinia, use 50% procymidone wettable powder at 1000 times dilution or dimethachlon at 800 times dilution, spraying the solution on both the front and back of the flower disk at the early flowering stage, once every 10 days. To control rust, in mid-July, spray 15% triadimefon wettable powder at 800-1200 times dilution per mu, choosing a windless day before 10 a.m. or after 6 p.m.

II. Precautions for High-Yield Cultivation of 363 Sunflowers

1. Base fertilizer and seed fertilizer should be applied all at once before laying the film.

2. Drip irrigation pipes should be laid reasonably at the same time as mulching.

3. The sowing time should be determined according to local conditions and the growth period of this variety.

4. Improving the quality of land preparation is the key to ensuring the quality of film laying. Before using any of these techniques, consult the local agricultural technology extension department.

If you want high yields of 363 sunflowers, fertilization and field management are key, so everyone must pay close attention when planting.