How to Grow Carrots: A Detailed Guide to Scientific Cultivation Techniques

Carrots are a vegetable we commonly eat in daily life, rich in vitamins; eating them regularly can boost immunity, beautify the skin, improve eyesight, and more. So do you know how to grow carrots scientifically? Below, the editor will take you through the cultivation methods for carrots!

How to Grow Carrots

1. Land preparation and ridging

After harvesting the previous crop, plow the soil deeply in good time, with a depth of 23-30 cm being suitable. While preparing the land, apply 3000-5000 kg of decomposed organic fertilizer per mu, 30 kg of diammonium phosphate, and 15 kg of potassium sulfate. The organic fertilizer and soil clods must be broken up thoroughly. Remove debris, rake the ground level, mark lines at 50 cm intervals and form ridges; the ridges are 27 cm wide and 10-15 cm high, with a bluntly rounded ridge top. If flat-bed cultivation is used, you can make raised beds 60-80 cm wide and 10-15 cm high, with a 20 cm wide furrow between beds, that is, raised-bed deep-furrow cultivation. We advocate ridge cultivation; the cultivation techniques in this section are described using autumn ridge cultivation as an example.

2. Sowing at the right time

In the Central Plains region, the suitable sowing period for autumn cultivation is from mid-July to mid-August, with sowing before the Start of Autumn being preferable. When sowing, open double rows of furrows on the ridge top at 10 cm row spacing, about 1 cm deep; water first, then scatter the seeds, cover with soil, and mulch with wheat straw, dry grass, or similar. When the sprouts show white, remove the mulch (preferably in the evening), then use a sprayer to moisten the bed surface, spraying once a day for 3-4 consecutive days.

Scientific Cultivation Techniques for Carrots

1. Choosing varieties

Variety selection for spring carrots is one of the keys to high yield; choose varieties that are early-maturing, high-yielding, late-bolting, cold-tolerant, and drought-tolerant. The varieties introduced by Minfa Agriculture can all be cultivated in spring, among which Japanese Ganghong Seven-Inch Carrot, Hanhong Six-Inch Carrot, and Xinhong are the top choices.

2. Land preparation and fertilization

Land preparation has a major impact on carrot yield and quality, requiring loose soil conditions and ample fertility. Spring carrot cultivation methods place even higher demands on plot conditions, so it is more suitable to choose deep, fertile loam or sandy loam rich in humus and with good drainage. After selecting the plot, carry out deep plowing and fine land preparation to a depth of about 30 cm; after deep plowing, rotary tillage can be carried out, but rotary tillage alone is not enough, because the rotary tillage layer is too shallow, which is unfavorable for carrot growth. During deep plowing, use 3 kg of phorate per mu for soil treatment, and at the same time apply 3000 kg of farmyard manure, 50 kg of phosphate fertilizer, and 50 kg of compound fertilizer per mu. The farmyard manure must be fully decomposed.

3. Sowing

For greenhouse cultivation, raised-bed cultivation can be used, making raised beds 1-2 m wide and 10 cm high. For plastic-film mulching cultivation, use single-ridge double-row cultivation; prepare the land and form ridges 7—10 days before sowing, making ridges 15 cm high and 50 cm wide, use double-row cultivation, and cover with film after sowing. Before planting spring carrots, treat the seeds: first rub off the fuzz on the seed surface. You can sow directly or sow after sprouting. For sprouting, soak in 40℃ warm water for 2 hours, drain the water, wrap in gauze, ensure a certain humidity, and sprout at 20—25℃ for 5—7 days; when 60% of the seeds show white, they can be sown. When sowing, use a 3 cm diameter hole punch on the film surface, open holes and sow by spot planting, with a plant and row spacing of 16 cm square, 5 rows per film surface, 20,000 plants per 667 square meters, sowing depth 1 cm, 5—8 seeds per hole, then cover with soil and press firmly.

Growing Conditions for Carrots

1. Soil conditions: Carrots require soil with a certain morphological texture and nutrient content. Choose plots with irrigation conditions and convenient transportation; note that waterlogged plots, plots where corn or flax have been treated with herbicides, and newly reclaimed plots are not easy to plant with carrots.

2. Temperature conditions: When the soil temperature stabilizes above 8 degrees (May 10—15), sowing can begin; sprouting starts above 15 degrees; the most suitable growing temperature is 23—25 degrees during the day and 12—15 degrees at night. A large temperature difference determines superior carrot quality and increased sugar content.

3. Moisture conditions: When the soil moisture content is above 20%, carrots can rely on their strong absorption capacity to absorb water and swell, preparing for germination; however, in actual sowing, ensuring soil moisture content of 60—70% (forms a ball when squeezed, breaks apart when tossed) is more suitable.

4. Fertilizer conditions: The fertilizer elements carrots need mainly include major elements (nitrogen, phosphorus, potassium), secondary elements (calcium, silicon), and trace elements (boron, zinc, molybdenum, magnesium, manganese, iron). Carrots require comprehensive and sufficient fertilizer; farmers growing carrots must understand soil fertility and fertilize scientifically to achieve a bountiful harvest.

Carrot Disease Control

The main carrot diseases are black rot, sclerotinia rot, and soft rot. Black rot is a fungal disease. It mainly damages the fleshy root, forming irregular or round, slightly sunken lesions, on which black mold-like matter grows. In the later stage, the fleshy root turns black and rots. It is advisable to remove diseased and damaged fleshy roots before storage and store them after sun-drying. Avoid damage during harvesting and transport. Sclerotinia rot mainly damages the fleshy root; the affected part softens and rots, and white cotton-like mycelium and black mouse-dropping-like sclerotia form on the surface. Soft rot damages the fleshy root; the affected part softens and rots, juice overflows, and there is a foul odor (see Chinese cabbage).

Through the above content, I believe everyone has gained some understanding of carrot cultivation techniques. Carrots are rich in nutritional value, suitable for men and women, young and old, and carrots are also a particularly easy vegetable to grow, with high yields; many people even grow some carrots at home.