How to grow carrots Scientific planting techniques of carrots

Carrots are vegetables that we often eat in our life, which are rich in vitamins, which can enhance physical resistance, beauty, eyesight and so on. So do you know how to grow carrots scientifically? The following editor will take you to learn about the method of growing carrots.

How to grow carrots

1. Soil preparation and ridging

Turn the soil deeply in time after the previous harvest, with a depth of 23-30 cm. Combined with soil preparation, 3000-5000 kg of mature organic fertilizer, 30 kg of diammonium phosphate and 15 kg of potassium sulfate were applied per mu. Organic fertilizer and soil particles must be broken. Remove sundries, rake flat ground according to 50 cm line ridging, ridge width 27 cm, height 10-15 cm, ridge top is obtuse circle. If the border cultivation is adopted, it can be made into a high border with a width of 60-80 cm and a height of 10-15 cm, and the ridge and furrow between the border is 20 cm wide, that is, the cultivation of high border and deep furrow. We advocate ridge planting, and the cultivation techniques in this section are described by taking autumn ridge planting as an example.

2. Sowing at the right time

The suitable sowing time for autumn cultivation in Central Plains is from mid-July to mid-August, and it is suitable to sow before the Beginning of Autumn. Sowing at the top of the ridge according to 10 cm row spacing double trench, ditch depth of about 1 cm, first watering, and then sowing, covering soil, can be covered with wheat straw, hay and so on. Remove the mulch when the buds are white (preferably in the evening), and then spray the border with a sprayer, once a day for 3-4 days.

Scientific planting techniques of carrots

1. Select varieties

The variety selection of spring carrot is one of the keys to high yield. Varieties with early maturity, high yield, late bolting, cold tolerance and drought tolerance should be selected. All the varieties introduced by Minfa agriculture can be cultivated in spring, among which Japanese Ganghong seven-inch ginseng, Hanhong six-inch ginseng and Xinhong are the preferred varieties.

2. Soil preparation and fertilization

Soil preparation has a great influence on the yield and quality of carrots, which requires loose soil conditions and sufficient fertility. The cultivation method of carrot in spring requires higher conditions of the plot, so it is more suitable to choose loam or sandy loam which is deep, fertile, rich in humus and good drainage. After selecting a good plot for deep ploughing and fine soil preparation, the depth is about 30 cm. After deep ploughing, rotary ploughing can be carried out, not just rotary ploughing, because the rotary tillage layer is too shallow, which is disadvantageous to the growth of carrots. In deep ploughing, 3 kg / mu of phosphorus was used as soil treatment, and 3000 kg of farm manure, 50 kg of phosphate fertilizer and 50 kg of compound fertilizer were applied per mu. Farm manure should be fully mature.

3. Sowing seeds

High border cultivation can be used in greenhouse cultivation, making a high border with a width of 1-2 meters and a height of 10 cm. The cultivation of plastic film mulching adopts single-ridge and double-row cultivation. Before sowing, the soil is ridged 10 days in advance to make a ridge of 15 cm high and 50 cm wide. Double-row cultivation is adopted, and the film is covered after sowing. The seeds of spring carrots are treated before planting, first of all, the hairs on the surface of the seeds are rubbed off. Can be direct broadcast and sprouting sowing. When sprouting, soak it in 40 ℃ warm water for 2 hours, control and clean the water, wrap it with gauze to ensure that the humidity is 20 ℃ and 25 mol for 7 days. When 60% of the seeds are white, they can be sown. When sowing, a hole punch with a diameter of 3 cm was used on the film surface, and the hole was sown on demand, with a row spacing of 16 cm, 5 rows per film surface, 20,000 plants planted in 667 square meters, a sowing depth of 1 cm, and 8 seeds per hole, and then covered with soil.

Growth conditions of carrots

1. Soil conditions: carrots require soil to have a certain morphological texture and nutrient content. To have irrigation conditions, convenient transportation of land, pay attention to waterlogging land, corn, flax used herbicide land, wasteland land is not easy to plant carrots.

2. Temperature conditions: when the soil temperature is stable above 8 degrees (May 10-15), it can be sown and begin to sprout above 15 degrees. The most suitable temperature for growth is 23 degrees 25 degrees during the day and 15 degrees 12 degrees at night. The large temperature difference determines the quality of carrots and the increase of sugar content.

3. Water conditions: when the soil water content is more than 20%, carrots can absorb and expand by virtue of their strong absorption capacity to prepare for germination, but it is more appropriate to ensure that the soil water content is 60 ~ 70% in actual sowing.

4, fertilizer conditions: carrots need fertilizer elements mainly include a large number of elements (nitrogen, phosphorus, potassium), medium elements (calcium, silicon), trace elements (boron, zinc, molybdenum, magnesium, manganese, iron). The requirements of carrots for fertilizer are comprehensive and sufficient, the majority of farmers must understand the soil fertility of scientific fertilization, in order to achieve the goal of harvest.

Carrot disease control

Carrot diseases include black rot, Sclerotinia sclerotiorum and soft rot. Black rot is a fungal disease. It is mainly harmful to the fleshy root, forming irregular or round, slightly sunken spots with black mildew on it. In the later stage, the fleshy root blackened and rotted. The diseased fleshy roots should be removed before storage and stored in the sun. Avoid breakage during harvest and shipment. Sclerotinia sclerotiorum is mainly harmful to fleshy roots, the injured part softens and decays, and there are white cotton-like mycelium and black mouse fecal sclerotia on the surface. Soft rot damages the fleshy root, the injured part softens and decays, the juice overflows, and there is a stench (see Chinese cabbage).

Through the above, I believe you have a certain understanding of the planting technology of carrots. Carrots are rich in nutritional value, suitable for men and women, old and young, and carrots are also very easy to grow vegetables, and the yield is high, and even many people will grow some carrots at home.