Question: Mr. Wang, Yangmazhuang, Yongqing County, Langfang City, said that they are carrot production areas, planting area of ​​several thousand acres or more, would like to ask, how to reduce the roots of autumn carrot planting?
Zhou Shigang A: Carrot growth is divided into germination stage, seedling stage, leaf growth period, and rhizome growth period.
Why carrots have cracked roots:
The main reason is that during the growth of carrot fleshy rhizomes, the soil moisture supply is not uniform after the late growth period of leaves. Like excessive rain and excessive application of nitrogen fertilizer, the white rhizome cells rapidly expand, and the phloem phloem and pericarp cells cannot be expanded accordingly.
Prevention:
1. Water should be watered in time for carrot growth. Carrots in the seedling stage coincide with high temperature and drought. At this time, water should be watered in time to promote its growth. When the rhizome is rapidly expanding in the middle and late growth period, it should be evenly watered. In the later stage, watering should be controlled, and the wetness should be avoided. In the rainy season, it is necessary to remove water from the ground.
2. Rational fertilization. During the growth of carrots, the application of nitrogen and potassium fertilizers should be applied to the seedlings. In the middle and late growth period, single application of nitrogen fertilizer is strictly prohibited, and the application of phosphorus and potassium fertilizers should be increased. Excessive nitrogen fertilizer causes the roots to grow rapidly and accelerate the roots.
3. Variety selection. When buying carrot seeds, you should choose different varieties according to different seasons, and choose varieties that are not easy to twitch and crack.
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