High-yielding planting techniques of sunflower 363

363 the shell of sunflower seeds is black and white with irregular white stripes, black and white, which tastes sweeter and fuller than other sunflower seeds. So, what are the key points and matters needing attention in 363 sunflower high-yield planting techniques?

I. key points of high-yield planting techniques of 363 sunflower

1. Land preparation

The plots with well irrigation conditions should be selected, and the plots of continuous cropping and facing stubble should not be selected. Can take the first soil preparation and then film mulching, and then watering, fertilization.

two。 Film mulching sowing

Choose 90 cm wide plastic film, mechanical mulching and pipe laying before sowing, one film covering two rows, sowing depth 2-3 cm, shallow soil after sowing. The quality of the film should be close to the combination of the plastic film and the ground, and the soil cover should be strictly covered and hit a soil belt laterally every 5 to 10 meters or so to prevent the plastic film from being destroyed when the wind blows. After plastic film mulching, follow artificial sowing, sowing 1 grain per hole, sowing amount of about 0.5 kg per mu. The hybrid seeds should be opened and watered with an eyedropper after sowing with plastic film mulching.

3. Field management

First: check and replenish seedlings. Artificial budding and replanting should be carried out in the areas with long lack of seedlings, and double seedlings should be left nearby in the areas with short lack of seedlings.

Second, ploughing and weeding. Weeding with herbicides per mu a week before sowing, and manual eradication of weeds between plastic films in time after emergence.

Third: fertilizer and water management. According to the seed characteristics of the 363 sunflower, 30 kg of sunflower special fertilizer per mu and 20 kg of urea per mu were applied before sowing and watering at bud stage. Watering for the second time during flowering, shallow and fast watering should be done to prevent lodging and bacterial wilt.

Fourth: strengthen pollination. Honeybee pollination should be carried out for large and concentrated plots, and artificial pollination should be carried out if possible to improve the seed setting rate of sunflower.

Fifth: pest control. To control Sclerotinia sclerotiorum, 1000 times of Sclerotiorum wettable powder or 800x solution of Sclerotinia sclerotiorum can be sprayed on both sides of the disk at the early flowering stage, once every 10 days. Rust control can be carried out in mid-July with 15% triadimefon wettable powder 800-1200 times per mu, in windless weather before 10:00 or after 6 p.m.

II. Matters needing attention in high-yield cultivation of sunflower

1. Base fertilizer and seed fertilizer should be applied at one time before film mulching.

two。 The drip irrigation pipe should be laid reasonably at the same time of film mulching.

3. The sowing time is determined according to the local reality and the growth period of the variety.

4. Improving the quality of soil preparation is the key to ensure the quality of film laying. The relevant local agricultural technology promotion department should be consulted before the use of each technology.

Fertilization and field management are the key to high yield of 363 sunflower, so we must pay more attention to it when planting.