How to grow carrots during the growth process of carrots

The growth process of any plant is almost the same, nothing more than seeds, and then sprout, and then grow more buds, and then continue to grow luxuriantly, and then blossom and bear fruit, and finally die. Carrots as a kind of common fruits and vegetables are no exception.

The growth process of carrot

1. Germination period: from sowing to showing a pair of pointed leaves, it takes 10 days for carrot seeds to germinate slowly, the germination rate is low and the germination is irregular. Therefore, the carrot germination process generally requires strict conditions, keeping the soil fine, loose, breathable, and creating good temperature and humidity conditions are the necessary conditions to ensure the integrity and integrity of seedlings. The germination rate of carrots is 70% under good conditions, but only about 20% under poor conditions.

2. Seedling stage: it takes about 20 days from true leaf dew heart to 5Mui 6 leaves. In this period, the photosynthesis and root absorption capacity are not strong, and the aboveground growth is slow, which is indeed the key period for underground growth. The length of the line in this period determines the life length of carrots, and the suitable growth temperature is 23 ℃. Carrots are sensitive to living conditions. Adequate nutritional area and fertile and moist soil conditions should be ensured at any time, and the soil should not be watered too frequently, and the soil should be seen dry and wet. Ensure that the soil moisture is suitable for the soil to be too wet, the air in the soil is less, the temperature decreases naturally, and the radish is easy to grow into a short-pointed column. this period is the key period for seedlings and seedling removal, so we should accurately grasp the opportunity and do not miss it.

3. The peak period of leaf growth: from 5mur6 true leaves to rosette stage, the leaf area continues to expand and the fleshy root begins to grow slowly, which takes about 25 days. In this period, it is mainly the long leaves of the aboveground parts, and the supply of fertilizer and water should not be too large, and the management of the above-ground leaves should be "promoted but not too prosperous". Pay attention to the application of foliar fertilizer to improve the nutritional status, prevent the leaves from withering and yellowing prematurely, and at the same time prevent excessive water and fertilizer, causing the leaves to grow excessively.

4. The peak period of fleshy root growth: from rosette stage to root harvest, it takes 50 seconds and 60 days, accounting for about 2% of the whole growing period. the leaves continue to grow, the lower old leaves continue to die, and the photosynthates are transported and stored to the underground fleshy roots. during this period, it is necessary to strengthen water and fertilizer management, increase the application of potash fertilizer, create good temperature and humidity conditions, and promote the development and hypertrophy of underground roots.

How to grow carrots

1. Scrubbing and budding

There are bristles on the surface of the seeds, so that the seeds are linked into balls, which is not easy to sow evenly, and it also hinders the contact between the seeds and the soil, which is not conducive to germination. The seeds should be rubbed immediately after harvest and drying, and the two half fruits should be separated into a single seed at the same time. Because the seeds are small, they can also be mixed with plant ash or fine soil when sowing, so as to facilitate uniform sowing. It can also be suitable for the most cabbage seeds, which can emerge early, indicating that the carrot row is conducive to early weeding, ploughing and other operations. Carrot seeds absorb water slowly and germinate late, and sowing after germination can emerge early for about 4 days. The method of accelerating germination was as follows: the deburring seeds were soaked in 40 ℃ water for 2 hours, then drenched with water, and germinated under 20-25 ℃. In the process of accelerating germination, suitable humidity should be maintained and turned regularly so that the seeds can be sown when most of the seeds are in uniform temperature and humidity.

2. Sowing method

Strip sowing according to row spacing 15-20cm single row, or 45-50cm wide double row, trench depth 2-3cm, apply human nitrogen, phosphorus and potassium compound fertilizer along the ditch, mix well with the soil slope, then sow and sow, then cover the soil (or use appropriate amount of plant ash and fine manure mixed with fine soil cover) thickness and furrow flat. It can also be sown after ditching and watered after mild suppression. Then cover the border with crushed grass to moisturize. 105kg per hectare is used for strip sowing, which can be sowed directly on the border surface, such as loosening soil, suppression, watering, searching cover and crushing grass, etc. The amount of seeds used for sowing is 15-225kg per hectare in some areas, such as Shanxi Province, where carrots are planted in large areas, and the most 1125kg per hectare is used. After sowing, if the temperature and humidity are suitable, the seedlings can emerge after 10-15 days (6-7 days after budding).

Planting time of carrots

The best time for carrot sowing is between Lesser Heat and Greater Heat, but in recent years, due to market demand, spring sowing carrots have also appeared. Spring sowing is early, usually from late February to early March!

The origin of carrots

1. Carrots are native to the southwest of Asia, Afghanistan is the earliest evolution center, and the cultivation history is more than 2000 years.

2. It was introduced into Europe from Iran in the 10th century.

3. It was found in England in the 15th century and developed into an European ecotype, especially along the Mediterranean coast.

It was introduced into the United States in the 16th century.

5. It was introduced into China from Iran in the 13th century and developed into a Chinese ecotype, with the most planted in Shandong, Henan, Zhejiang, Yunnan and other provinces. Carrots were introduced into Japan from China in the 16th century.

Growing carrots is something that farmers in most parts of our country will do. Small-scale cultivation of carrots is not too complicated, and it does not need to pay much attention to techniques and techniques. But for large-scale mass cultivation, it is very critical, after all, issues involving money are worthy of attention.