The latest field management of sunflower

Golden sunflower is a kind of edible plant with high nutritional value, and it is also the most edible and medicinal variety among more than 200 okra plants. In China, the market is relatively large, planting sunflower is relatively simple, but we need to do a good job in field management. There are also many people who fail to plant because of poor management. So how to manage the planting of sunflower? Let's take a look at it with the editor.

1. Topdressing in time

The plant of sunflower is relatively large, the growth ability is strong, and the demand for nutrition in the growth process is also relatively large. Therefore, when we plant, we should apply enough base fertilizer, and we should also do a good job of topdressing. The base fertilizer is mainly rotten farm manure, and then we need topdressing at least twice during the growth period, especially at the flowering stage. And after each harvest, fertilizer should be applied to replenish the nutrition lost as a result of harvest.

2. Rational watering

As I just said, sunflower has large plants and thick leaves, so the demand for water is relatively large. When sunflower is young, it should be watered at least twice, and when it reaches the flowering and fruit stage, the water demand increases, so it should be watered frequently to keep the soil moist. In the hot summer weather, it is also the harvest season for sunflower, so it is more important to keep watering regularly at this time. However, water should not be too much, when there is too much rain or too much watering, drainage should be done in time to prevent excessive water from causing waterlogging and killing seedlings.

3. Cultivate the soil by ploughing.

The root capacity of sunflower is relatively strong, so in order to promote the root development of sunflower, we should carry out at least two times of intertillage before the flower bud stage. And mid-tillage should be done well after flowering. Proper mid-tillage can not only prevent soil hardening, affect root respiration and nutrient absorption, but also achieve the purpose of weeding and prevent grass famine. Finally, it is necessary to do a good job of soil cultivation before closing the line to improve the lodging resistance of sunflower.

4. Plant adjustment

In order to improve the permeability of the field, pruning should be done when the branches and leaves of the plant are too luxuriant. The lateral branches at the base of the plant were cut off in time to remove the aging and yellowing leaves. If there is excess nutrition, the leaves should be twisted properly and the petiole should be bent to prevent the plant from overnutritious growth. Then in the middle and later stages, old leaves should also be removed in time to reduce nutrition consumption and reduce the incidence of diseases and insect pests.

5. Pest control

The disease resistance of sunflower is relatively strong, the incidence of disease is low, but the occurrence of insect pests is more. There are different pests in different growth stages of sunflower, for example, aphids and borer are more harmful in seedling and flowering stage. Therefore, we should strengthen the prevention and control of diseases and insect pests, avoid crop rotation, improve the disease resistance of seedlings, deep soil preparation, rational fertilization and so on. Then use the methods of light trapping and artificial trapping to eliminate pests, and in serious cases, reasonable use of pesticides for control.

The growth period of sunflower is about 3 months, and the harvest time can be up to 3 months, so we should pay attention to nutritional supplement during harvest, prevent and control nutrition deficiency affecting subsequent harvest and reduce planting efficiency. This is the end of today's introduction, this article is for reference only, friends who want to know more relevant information, please continue to follow us!