The growth environment of the turnip, the growth environment of the coriander

Coriander is also a customary name in the countryside, but now it is usually called coriander, coriander as a seasoning dish in life, although the amount is not large, but it is also a dish that can often be used in the daily diet, if you remember, last year coriander was sold at a maximum of 50 yuan a catty in some places, and many people shouted that they could not afford to eat, which shows that coriander planting does have a good economic value. Coriander cultivation is actually not complicated, there are the following 3 steps, basically you will see it at a glance.

First, the season of coriander planting: in the yard of farmers, a piece of coriander will be planted every year, only for their own consumption, that is enough, coriander planting has a characteristic, in addition to winter (except greenhouse) can basically be planted in the open air, and coriander has strong adaptability, most areas of the country can be planted, in the hometown of Shandong Agricultural University, cover with plastic sheeting in winter, or build a small arch shed, coriander can grow, it can be seen that coriander is also a relatively cold-resistant vegetable.

Second, the preparation before the planting of coriander: to say that the specific planting time of coriander, basically from the beginning of spring to the autumn of September is OK, the planting technology of coriander is not complicated, choose a flat and fertile soil on the line, before turning the ground watered once, and then apply the well-rotted organic fertilizer, the soil is deeply harrowed and raked fine, can be furrowed, can also be sown on the ground.

Coriander varieties are also not the same, this point still has to be clarified, people who have gone to the market to buy vegetables should know, some coriander plants are large, the leaves are large, and the taste is light, but some coriander plants are small, the leaf surface is small, but the taste is strong, according to the choice of coriander varieties you need, when buying seeds, you should ask clearly, if you keep the seeds of the cherry blossoms by yourself, then you can ignore this link.

Coriander seeds are small, but there is a layer of hard shell, the hard shell is not cracked, the emergence of seedlings will be very slow, and even cause uneven seedlings and other phenomena. Therefore, before planting coriander, it is necessary to rub the hard shell outside the seed, rub it off, sow it directly, or soak it to promote germination, the method of sowing is to sow it directly to the soil, and then gently rake it with a rake, or evenly sprinkle some sand on it with a uniform base jujube, after sowing, it is necessary to keep the soil moist, not compacted, the soil is dry, you can spray water with a sprayer, avoid watering with a water hose, and avoid washing away the seeds.

Third, coriander seedling management: after the emergence of seedlings, seedlings can be carried out according to the density of seedlings, if it is planted at high temperature in summer, due to the strong light, it is necessary to do a good job of shading in time, the relative incidence of coriander pests and diseases is still very low, but do not take it lightly, and do a good job of observing pests and diseases in time for timely prevention and control work.

When the coriander seedlings have grown to a height of 2 cm, some nitrogen fertilizer can be applied at the time of watering, and watering should be reduced while keeping the soil moist. During the growth period of coriander, do a good job of removing weeds, and basically it is fine. The yield per mu of coriander can be about 2,000 catties according to the variety and soil fertility, and the market economic price Bi Feng Cong value is still very good.

1. Reproductive characteristics of coriander.

Coriander scientific name: coriander, is a very special vegetable coriander, most of the coriander is suitable for planting in the south, so coriander can be planted anywhere in the south, and it can also be planted in the summer of the north.

2. Soil selection.

It is very important to choose the land where the coriander is grown, to be planted on open and flat land. Do not plant near polluted water sources or on the edge of polluted mining areas. Coriander needs loose and soft soil.

If it is a sandy soil, it is especially suitable for coriander growth. Therefore, we should plough the soil and try to keep the soil loose, so that the growth of coriander is very vigorous.

3. Sow seeds.

It is necessary to choose good coriander seeds, which have a strong fragrance and can prevent pests and diseases. After selecting the coriander seeds, you can soak them in water for half a day, wait until the coating breaks, and then sprinkle them directly on the prepared soil. It is then covered with fine soil, sprayed and watered, and the seeds are waited for to germinate.

Coriander likes the cool season, and the temperature should not be too high, otherwise it is easy to sprout. This will have an impact on the quality of the coriander, and it should not be sown too late, after which the coriander will stop growing, resulting in low yields. Generally, the plant spacing of coriander is 10 centimeters, the depth of the furrow is 5 centimeters, and the covering soil layer is 2 centimeters.

4. Field management.

When the coriander grows to ten centimeters tall, the coriander should be weeded. And to give parsley to loosen the soil. This is done to allow the soil to breathe and allow the root system of the coriander to be more developed, so that the leaves will grow more vigorously.

If it is loosening the soil, there is a phenomenon of compaction on the soil surface, and you can use a rake to hug it. Be sure to remove weeds so that the seedlings can grow. During the growth of the coriander, the weeds should be removed three times, and the coriander should be fertilized twice and watered three times.

In this way, the coriander is green enough and the leaves are large enough, so it is best to use urea when fertilizing the coriander. After fertilization, be sure to water and irrigate so that the coriander can be more tender and green. Urea does not hurt the leaves of the coriander.

5. Harvest coriander.

Coriander can be picked when it grows to a foot high, and the roots of coriander are relatively short and shallow, so you can pull it up directly. Coriander is a more suitable vegetable for preservation. Generally, the growth period of coriander is two months.

Coriander, also known as coriander, coriander, and coriander, is eaten with young leaves and stems. Coriander has a special fragrance, which can be served cold and raw, stir-fried or used as a soup seasoning. Coriander prefers cold climates and is not resistant to high temperatures, and can be planted in spring, autumn and summer, but summer planting should be chosen.

1. Variety selection: such as Beijing coriander, North China big leaf, Laiyang coriander, Yuanyang autumn coriander, purple coriander, white flower coriander, etc. 2. Fertilization of land preparation:

Choose plots with relatively fertile soil, good water and fertilizer retention performance, drought watering, waterlogging drainage, good permeability, and no coriander planted for more than 5 years. 4,000 kg of rotting farmhouse fertilizer and 100 kg of cake fertilizer are applied per mu. The residues of the previous crop should be removed to reduce the occurrence of pests and diseases.

Deep ploughing and fine raking, making furrows, furrows with a width of 1 meter and a length of 8 10 meters are appropriate. 3. Soak seeds to promote germination: before sowing, rub the peel with cloth shoes, divide it into two petals, soak the seeds before sowing, soak the seeds with water for 24 30 hours, and spread them on the damp and pollution-free sack after fishing, with a thickness of 2 3 cm, and cover the damp sack.

When the temperature is 20 25, stir 1 2 times a day to keep the seeds have a certain amount of moisture, and after 3 or 4 days they can germinate and sow seeds. Spring sowing is carried out from March to April, autumn sowing is sown from late July to August, and the sowing period of summer planting coriander is not strict, generally sowing in May and June, and harvesting 40 to 50 days after sowing. 4. Sowing and protecting seedlings:

Coriander is better sown. After sowing seedlings, the seedlings can cover the furrow surface, so that the evaporation of water is reduced, and the temperature between the surface is reduced. The sowing method is "sow two furrows first, and leave one furrow".

The mulching soil that is sown first and set aside is placed on the surface of the furrow on both sides, and then filled with enough water, evenly sown after the water seeps out, cover the soil 2 cm after sowing, and then sow the empty furrow that is left, and the method is the same as the first sowing. The amount of seeds per mu is about 2 kg. After all the broadcasts are finished, a crackdown will be carried out to protect the moisture.

If the weather is dry and the soil moisture is low, it will affect the emergence of seedlings, so you can water it once with a small amount of water. 5. Field management: 50% of the grass can be used before the seedlings after sowing, sprayed on the ground with 100kg of water, weeding, and the seedlings are thinned when the seedling height is 4 5 cm, and the seedling distance is 2 4 cm.

After thinning seedlings, combine irrigation to chase a thin manure water. When the seedling height is 7 8 cm, the first fertilizer should be applied at this time, and the amount of fertilizer should be large, and 15kg of urea or 20 30kg of ammonium sulfate should be applied per mu. Keep the soil moist, water every 4 5 days, and take shade to cool down in summer.

Coriander can tolerate low temperatures of -1 to 2, and the suitable growth temperature is 17 to 20, after 20 it grows slowly, and 30 stops growing. Coriander does not have strict requirements for soil, but the soil with good soil structure, strong fertilizer and water retention properties, and high organic matter content is conducive to the growth of coriander.