The management of coriander in the rainy season should be careful, and what should be paid attention

Removing pathogens in the soil and on seedlings is conducive to the prevention and control of pests and diseases; It provides phosphorus and potassium for coriander leaves, which is conducive to the growth of high-quality and high-yield coriander. Absorbs water and improves the soil environment around the roots of coriander.

It is the rainy season, and some vegetable farmers who grow two crops of coriander a year are about to sow seeds, so how should they be managed in the 45-50 days from sowing to harvest? After communicating with Liu Mingxing and other coriander growers in Jiangying Village, Daotian Town, the author believes that the management of coriander in the rainy season should focus on the following three links. The first is seedling management.

About 9-10 days after sowing coriander can emerge seedlings, if there is rain before the emergence of seedlings, it is easy to form a layer of "pot cake" in the ground after the weather is clear, which will seriously affect the emergence rate of coriander, at this time it should be watered once before the emergence of seedlings to ensure the air permeability of the soil, so as to facilitate the emergence of seedlings.

First, it should be watered once before the seedlings emerge, which is conducive to the timely growth of vegetable seedlings; Second, water in time after rain to ensure that the nutrients of coriander are sufficient; Third, drain water in a timely manner after rain.

Coriander management method:

1. Selection of planting soil.

The soil planted in the soil must have a certain amount of wetting and fertility, and the soil itself must have a good drainage system, otherwise it is easy to cause root rot in the rainy season. Before planting coriander, the soil must be cultivated. When cultivating the soil, it is necessary to pay attention to digging deeper, so that he can retain more water, which is conducive to later development.

For cultivated land with coriander, a neutral pH is best.

2. Sowing and seedling management.

Before planting coriander, you can treat the seeds, peel off the outer skin of the coriander, and then soak them in warm water for about a day. Remove, wrap in a damp cotton cloth and drain. At this time, put it at a more suitable temperature.

In about seven to ten days or so, all the buds will appear, and then it is ready to be planted. Leave a nice distance for each seed to develop better later. After planting, cover with fine soil, and then cover a layer of film, which has the effect of moisturizing and heat preservation, and after growing three or four leaves, remove the film to facilitate breathing.

3. Water and fertilizer management.

When planting, it needs to be watered again. You don't need to water much upfront. Generally, water once every ten days.

In the medium term, when the coriander grows, it needs to be watered every five to six days. In terms of fertilization, it is also necessary to apply fertilizer once when the land is cleared, once again when planting, and again when harvesting. Coriander does not have particularly high requirements for fertilizer moisture, so it is okay to ensure the basics.

4.Pest control.

In the middle of cilantro growth, insects suck coriander. Therefore, in order to guarantee its integrity, it is necessary to observe the invasion of insects. Before an insect invasion, be prepared to control pests.

You can spray it with ordinary potion first, usually once every half a month. If it is a pest, it must be sprayed every five or six days, and different potions can be selected according to different pests. Young coriander roots are often eaten by some insects in the field.

Therefore, we must be careful when farming.

Coriander is actually very easy to manage, as long as we do a good job in the management of coriander in various periods, it will actually play a great role in the growth of coriander.

The temperature of the growing environment is generally around 15-20 degrees Celsius, and if it exceeds 20 degrees Celsius, it will grow slowly, and if it exceeds 30 degrees Celsius, it will stop growing. Therefore, in the early stage of seedlings, it is necessary to ensure that there is sufficient moisture, moist and suitable temperature growth environment in the field, and in addition, it is necessary to cultivate and weed and loosen the soil many times. Therefore, top dressing is not affected by drought and seedling water, so it is understood that the planting management of coriander should be based on the soil fertility of top dressing, fertilization and water combined with urea or nitrogen and potassium fertilizer, and the amount of fertilizer is generally about 15 catties at a time, which is more conducive to the high yield of coriander.

Before planting, it is necessary to soak the seeds; First of all, the seeds should be placed in a place and ground with bricks to make the seed shells crack; Then put it in clean water and wash it again, soak it for another 4 hours, and continue to soak it in the greenhouse for 12 hours; Then soak the seeds with 1% potassium permanganate solution for 30 minutes, and then filter with clean water after removal; Open field cultivation: In addition to the high temperature in summer, coriander can be sown and cultivated in the open field in spring, autumn and winter. At the seedling stage, it is not advisable to water too much, until the coriander seedlings grow to about 10 cm, and when the plants are growing vigorously, water them frequently to keep the soil surface at the appropriate humidity.

First of all, it is necessary to choose loose and fertile, good water and fertilizer retention capacity, and good drainage and irrigation measures, so as to ensure that the fertilizer water in the later stage can penetrate into the soil normally and promote the absorption of coriander. At the same time, we should bring foot fertilizer when planting, mostly farmhouse organic fertilizer, coriander is not drought tolerant, should be watered lightly every 5-7 days, basically in the whole plant growth period, to water 5-7 times, in order to keep the soil moist often. In the middle of growth, about 10 kg of urea per mu is used to ensure good growth.

Autumn is more suitable for sowing after mid-August, and the quality of production is better.

Coriander needs more water during the vigorous growth period, so apply 6 kg of fast-acting nitrogen fertilizer or 10 kg of water fertilizer every 10 days, and increase phosphorus and potassium fertilizer. In the middle stage, 15 kg of ternary compound fertilizer, 20 kg of superphosphate, and 10 kg of potassium sulfate were applied in three times, once every 10 days, combined with watering.

1.Sowing time, summer coriander is generally sown in June, and the amount of seed per mu should not exceed 2 kg, and the appropriate sowing amount can not only ensure the yield, but also improve the quality of coriander. The planting density should not be too small, so as not to affect the later harvest, the seeds should be evenly sprinkled in the soil, covered with film and grass after sowing, and removed in about a week, which can maintain soil moisture.

2.Variety selection, the summer temperature is high, when it exceeds 20, the growth rate of coriander will slow down, and it will also affect the quality of coriander, and when it exceeds 30, it will stop growing. Therefore, when selecting varieties, we should choose varieties that are resistant to drought, sunlight, late budding, and have a faster growth rate.

The quality of the variety also affects the yield and quality of coriander. 3.Soil preparation and fertilization, because it is off-season planting coriander, so there are certain requirements for the soil, you can first loosen the land to ensure that the fertilizer water can penetrate into the coriander in the future, biased to absorption.

Coriander has a short growth cycle, and it is necessary to apply foot fertilizer before planting, generally well-rotted farmhouse fertilizer or compound fertilizer, and mix the soil and fertilizer so that it can be better absorbed.

When planting coriander, be sure to pull out the surrounding grass, and when pulling coriander, you should pull it once at a distance, so that the coriander will grow faster.

Weeding should be carried out so that the nutrients of the coriander are not absorbed by the weeds and can grow better.

Combined with the growth characteristics of coriander, it is easier to grow coriander in spring and autumn, but it is really difficult to grow in the hot summer. If you want to grow high-yield coriander in summer, you must do the following links to get a good harvest: choose the soil is more fertile, water and fertilizer retention performance is good, drought can be watered, waterlogging can be drained, good permeability, more than five years have not been planted coriander soil, must not be stubble, 4000kg of rotting farmhouse fertilizer per mu, 100kg of cake fertilizer.

The residues of the previous crop should be removed.

<> coriander, also known as coriander, turnip, belongs to the dicotyledonous herb for one or two years, and is a familiar flavor vegetable in people's lives. It is shaped like celery, and is often used in soups, cold dishes, and coriander seeds for 2 to 3 days before the seeds are planted, and the seeds do not germinate in the next year. or condiments for pasta-based foods.

It is recorded in the Compendium of Materia Medica, land preparation and fertilization. It is advisable to choose a sandy loam soil with fertile and loose soil, good water retention and drainage, and close to the water source. Before sowing, combined with soil turning, 3000-3500 kg of high-quality decomposed manure was applied per mu, and then a furrow with a width of 2 meters was built.

Coriander is an indispensable side dish when we usually cook, some people love it to the death and some people avoid it, so what is the way to grow coriander in summer? First, it is necessary to select old seeds that are more than 2 years old and less than 5 years old, and new seeds contain aromatic phenolic substances to inhibit germination. In order to prevent sprouting, it is best to use large-leaf coriander seeds that can be planted in all seasons.

Parsley microphylla has a strong flavor, but it is only suitable for autumn sowing and has a low yield.

Coriander can be grown all year round, but it is generally grown in spring and autumn, so it is now possible to grow coriander. Now in September to plant autumn coriander more, but in August can also plant those heat-resistant varieties, the germination rate can not achieve too good results, selection, coriander is divided into large leaves, middle leaves, small leaves three kinds, high temperature in summer, high humidity, large leaves are easy to rot leaves sick and die, small leaves are not good, low yield, at this time the middle leaves are the most suitable, choose some heat-resistant and pump-resistant varieties are the best.

To choose the right coriander product, it is necessary to choose soil with good air permeability, good water retention capacity, good porosity in irrigation, and more fertile soil, soak seeds and promote germination to improve germination rate, sowing, and field management points.

The best time to grow coriander is in the beginning of autumn, soak the coriander seeds in warm water for 10 hours. After soaking, the seeds should be rubbed in half, which can ensure a higher emergence rate. When the seedlings grow to about 3 cm, the seedlings should be thinned, and weeding should be done at the same time, which can speed up the growth of the seedlings

The choice of seeds is very important, before sowing, the seeds should be rubbed open and then soaked in water for a day, placed in a 20-degree environment to germinate, and the seeds should be washed with water every day during the germination process to ensure that the seeds are not moldy. Sowing in the field, coriander is sown in May-July, not suitable for continuous stubble planting, the field is made of organic fertilizer as base fertilizer, deep and fine. Field management should remove the weak and dense seedlings between two or three leaves, and at the same time pull out weeds to ensure ventilation.

1. Variety selection.

Coriander has large-leaved varieties and small-leaved varieties. The large-leaf products are planted with tall plants, large leaves, few and shallow carvings, light fragrance, and high yield; The small-leaved planting plants are shorter, the leaves are small, the lack is deep, the fragrance is strong, the cold is hardy, and the adaptability is strong, but the yield is slightly lower.

2. Open field cultivation.

Coriander can be cultivated in the open field in spring, autumn and winter. It is not advisable to water too much at the seedling stage. When the seedlings grow to 10 cm, the plants are growing vigorously and should be watered frequently to keep the soil surface moist.

Watering at the same time as the top application of fast-acting nitrogen fertilizer 1 to 2 times. Pay attention to cultivating and proper seedling, and pull out weeds when thinning. In summer, it is necessary to properly shade and prevent heavy rain from scouring, and drain water in time after rain to ensure that the seedlings emerge neatly.

3. Greenhouse cultivation.

Generally, from September to October, it is broadcast live, and frozen water is irrigated once before winter to facilitate the seedlings to overwinter. In January, there is no need for ventilation from January to February. When the seedlings return to green, tillage, soil loosening, and weeding are carried out.

When the seedlings are 10 cm high, the plants enter the vigorous growth period, and the greenhouse is maintained at 15 to 25. About 15 kg of ammonium sulfate is used each time per mu, and it can be harvested in advance by topdressing 1 to 2 times.

Coriander management method:

Under normal circumstances, planting coriander (coriander) should choose a plot with loose soil, rich in organic matter, and convenient drainage and irrigation, and after the harvest of the previous crop, turn over the soil in time, 15-20 cm deep, and let it weathered and dried for more than 2 weeks.

Then sprinkle 4000-5000 kg of well-rotted high-quality farmhouse fertilizer and 10-15 kg of compound fertilizer as base fertilizer per mu, and make a furrow 140-150 cm wide and 20-25 cm high after raking, the length is determined by the length of the plot, and the ditch is 30-40 cm wide, which doubles as a sidewalk.

The furrow surface requires the soil to be finely crushed, loose and flat. If strip sowing is used, the furrow should be sown on the furrow surface according to the row spacing of 8 10 cm, 4-5 cm wide and about 2 cm deep, ready for sowing.

Coriander is a kind of vegetable, it is used as a condiment, coriander itself has a unique taste, usually used in condiments, cold dishes in the seasoning is more. This kind of vegetables and fruits are also more common in our villages, and the germination period of coriander is very long, and it generally takes more than ten days after planting.

First of all, the germination time of coriander is very long, and if there is heavy rainfall during this period, the seedlings used for planting are very prone to clumping. At this moment, we can sprinkle some grass ash on the top of the seedling stage, and then water it reasonably, which can reduce the salinization of the land. It maintains the germination period, and all the normal growth of coriander seeds, which can also improve the permeability of the soil, which is more conducive to the germination of coriander.

Seedlings of parsley. When the coriander grows to a certain level, it grows very congregated because it is planted by sowing. Therefore, when the coriander grows to less than 5 cm, we need to carry out appropriate seedling, and at the same time, it is enough to maintain the interval between each coriander trees about 3 cm.

Secondly, hoeing grass during the growth period of coriander, and doing a good job of drainage in the coriander field to prevent coriander from being waterlogged. Coriander is relatively easy to grow, and most of them are cultivated in rural areas. And when the coriander grows to less than 6 cm, in addition to the seedlings, everyone should also carry out top dressing on him.

It can be applied with 1 mu of compound fertilizer or urea solution, up to 5kg of it. When the coriander grows to less than 10 cm, it is necessary to top dressing once, and 500kg of organic fertilizer can be applied to 1 acre of top dressing.

In the end, it is also necessary to prevent diseases during the growth period of coriander, especially coriander in the open field in the countryside, and a large number of diseases and pests must be prevented. At the same time, it is necessary to maintain the excellent natural environment for the growth of coriander, such as the elimination of wild weeds, drainage pipes, and immediate watering and top dressing, which can also improve the resistance of coriander. All in all, the key to coriander is to grow at a relative height of 6 cm, and then the fertilizer needs to be slowly increased, and the top dressing should be done immediately at this moment.