Nutritional value of carrots;
Carrots are not only adaptable, but also nutritious, which is of great help to health after meals.
Carrots are rich in carotene and have hematopoietic function, which can supplement the blood needed by human body and improve anemia or cold blood.
Replacing carotene with vitamin A can prevent skin cells from becoming cancerous. It is an essential substance for the normal development of bones, which is helpful for the reproduction and growth of cells, improving the immunity of the body and preventing night blindness.
Carrots contain hypoglycemic substances, quercetin and so on. It is helpful to improve microvascular circulation and prevent tertiary cardiovascular diseases.
Specialized cultivation of carrot
Carrots are very prosperous. Under natural conditions, it can be planted in all seasons except cold winter. Now with the help of greenhouse, the temperature can be changed when planting, and it can be planted all year round. If the planting arrangement is proper, you can harvest nearly four or five trees a year. However, this radish has short growth organs, insufficient carotene and poor nutrition. Can only improve the economic benefits of planting. The following are the cultivation methods to shorten the growth time in greenhouse.
South: August-September can be planted in autumn. Before and after the Spring Festival, the weather gets warmer, germinates, the sweetness decreases, the quality deteriorates, and the autumn harvest is approaching, so the harvest must be completed.
Seedling management
3 ~ 4 real leaves, 5 kg of ammonium sulfate, calcium superphosphate and potassium fertilizer per mu. After the seedlings are determined, water them again, and give 20 kg of diene phosphate and 7 ~ 8 kg of potassium chloride per mu to promote the rapid growth of seedlings. When succulent roots begin to grow, diammonium phosphate, potassium chloride and other fertilizers are harvested.
7 ~ 8 leaves of seedlings are deeply hoed and squatted, which promotes the elongation and growth of main roots and inhibits the square of leaves. After 10 ~ 20 days, when the fleshy roots swell obviously, give enough water to keep the soil moist.
The soil for planting carrots is deep sandy soil, which is better. The soil with loose soil, deep soil layer, good drainage and rich organic matter has a PH value of 5 ~ 8 and a humidity of 60% ~ 75%, which is most suitable for carrot growth.
The soil is all soil, and too much soil is buried, especially in the case of insufficient water, which will hinder the normal growth of carrots and even grow deformed carrots.
Spring carrots should choose plots with high terrain and convenient drainage. Especially in spring, if it rains heavily, it will have a direct impact on Wudang production. Especially the varieties with low cellulose content and soft meat. Five, carrot harvest
The fastest formation period of carotene in carrot fleshy roots is 50 days after sowing, and the highest carotene content is 80 ~ 90 days after sowing. With the maturity of fleshy roots, glucose is gradually transformed into sucrose, starch and fiber are gradually reduced, nutritional value is improved, quality is softened, and sweetness is improved. If carrots are not harvested after 90 days, the fleshy roots will continue to increase, the singleness will increase to a certain extent, the fiber will increase and the quality will deteriorate. Therefore, carrot planting should be harvested on time after 90 days.