The main causes of carrots are: 1. Variety. Generally, large varieties with fast growing speed and soft flesh are easy to make, while small varieties with dense roots are not easy to worry about. 2, sowing date. Early sowing and high temperature in the growing season, especially if the nighttime temperature is too high and nutrient accumulation is low, it is easy to worry. 3, fertilization. The excessive application of nitrogen fertilizer in the early stage caused overgrowth of the above ground parts, and consumption of large amounts of nutrients was easy to worry about. 4, improper water supply. The soil moisture in the early stage is high, and the humidity in the later stage is small. If the water and fertilizer supply is insufficient, it is easy to worry about. 5, planting density is unreasonable, radish line spacing is too large, there will be cruel.
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