Watercress is generally planted in the fall, but why?

Watercress is generally planted in the fall, but why? Watercress is generally planted in autumn because there is plenty of temperature and light in the fall.

1.Watercress is generally grown in autumn and harvested in winter. In general, watercress should be planted in paddy fields or dry lands with convenient irrigation conditions.

Secondly, the soil fertility of the planting site should be sufficient, and the fertilizer and water retention should be strong, so the general soil quality is clay loam or loam, and sandy land cannot be selected. The best time to plant is from August to September. If it is planted in the north, we must ensure adequate temperatures.

Many people will choose to grow in greenhouses. If you want to grow watercress in the open field, the temperature must be suitable for the watercress to grow, otherwise it will reduce the yield of watercress, which may lead to death.

2.Generally, it can be planted in paddy fields or dry land with convenient irrigation conditions. The soil fertility of the planting site should be sufficient, and the fertilizer and water retention should be strong.

Therefore, clayey or sandy soils are not suitable for planting. Proper shade around the watercress planting area can reduce the manpower and cost of building a shade shed. Paddy fields should be cultivated, and dry lands should be deeply cultivated and fertilized.

After the boundaries are ready, wait for the sowing. Watercress has high requirements for water and fertilizer, so there are some differences in management between paddy field cultivation and dryland cultivation.

3.If it is planted in a paddy field, then after planting, it is necessary to put shallow water into the field in time, generally at a depth of about 2 cm, and then gradually increase the water level with the growth of watercress, and the water level in the field should not exceed 5 cm. For dryland planting, watering is required after planting and then every 3-4 days, which is beneficial for maintaining the moisture of the soil.

During this period, it is also necessary to apply reasonable fertilization, generally with the application of fast-acting fertilizer, and then spraying foliar fertilizer, and applying an appropriate amount of well-rotted organic fertilizer.

4.In general, watercress should be planted in paddy fields or dry lands with convenient irrigation conditions. Secondly, the soil fertility of the planting site should be sufficient, and the fertilizer and water retention should be strong, so the general soil quality is clay loam or loam, and sandy land cannot be selected.

Proper shade should be provided near the planting area, which can reduce the effort and cost of setting up a shade shed. Paddy fields should be cultivated flat, dry land should be deeply cultivated, sufficient base fertilizer should be applied, and furrow sowing should be prepared.

Because the temperature is relatively low in autumn, it can reach the temperature required by watercress, and it can also absorb some water, and the precipitation can be maintained at 40%, which can prevent insect pests, so it is generally planted in autumn.

This is because there is a lot of precipitation in autumn, and the temperature is cooler in autumn, so it is not easy to get sunburned or corroded, which can increase the growth rate of watercress.

Because this helps the growth of watercress, and it can also increase the yield of watercress, and watercress has high requirements for the growing environment, watercress is generally planted in the fall.

Watercress is generally grown in autumn and harvested in winter. From late August to September, when the temperature drops to 25, seedlings are planted or sown, planted in September and October, and harvested about 30 days after planting. In the Yangtze River Basin, after harvesting and replanting 2 3 times, when the temperature drops to 5, it needs to be moved to the large and middle sheds or protected areas for false planting for wintering, and then transplanted in the open field in March of the following year and harvested in April and May.

Watercress is also called watercress, and watercress mostly uses vegetative propagation, which is propagated by ramifications and cuttings. The nodes take root and survive quickly. The row spacing of the planting plant is 6cm 9cm, and after one month, the seedling grows 15 to 20cm, and when the stalk is thick, it can be planted separately.

After planting, maintain a certain water level or a moist state to facilitate germination and rooting. If the temperature exceeds 30, cool water should be poured in the afternoon to avoid scalding the shoots. After the plant grows up, the water level can be deepened according to the requirements of the landscape.

In the growing season, weeds should be removed in time, and top dressing should be applied 1 2 times in combination with weeding.

Varieties of watercress.

1. Guangdong small-leaved watercress: leaflet type, plant height 30-40 cm, stem thickness of about centimeters, 2-3 pairs of leaflets on both sides, apical leaflets oval, long cm. Centimeter wide, brown, flowering in late April, but not bearing fruit, only vegetatively reproduced.

2. British large-leaf watercress: large-leaf type. The height of the plant is 40-50 cm, the stem thickness is about cm, the leaflets on both sides are 1-3 pairs, the apical leaflets are round or nearly round, long cm, wide cm, green, cold hardy, and still do not change color at low temperatures and in winter.

It blooms and bears seeds in spring, with good quality and fresh taste.

3. River two-leaf watercress: large leaf type, plant height of about 40 cm, stem thickness of about centimeter, 1-3 pairs of leaflets on both sides, apical leaflets long ovate, 3 cm long, cm wide, leaf green, leaf veins red, do not change color in winter and low temperature conditions, flowering and seeding in spring. This variety is highly resistant to stress and cold, but contains relatively more fiber.

If you dig the lotus root in the south, you can grow watercress.

The Thai watercress that has been introduced is still growing well, but the leaves turn red (locally) and can't survive the hot climate?

Winter. Eat hot pot and put it delicious. But as long as you buy something, you can eat it whenever you want.

Watercress planting techniques:1Suitable area:

Different varieties are suitable for different regions, and the northern region grows large-leaf varieties. 2.Mode of reproduction:

Generally, young stems are used for propagation, but seed propagation can also be carried out. 3.Planting Season:

Autumn seedlings in South China, transplanting when the seedlings grow to 15-20 cm, seedlings in the north when the spring temperature reaches more than 10, transplanting in May, can also be cultivated in greenhouses. 4.Planting method:

The young stems can be placed on the ground, and the root will sprout as long as the base stem nodes touch the soil. The planting row spacing is 10-13 cm, and the plant spacing is about 7 cm. 5.

Field management: The suitable temperature for watercress is 15-25, above 30 is difficult to grow, the leaves turn yellow, and below 0 will be frozen, and the growth period is most suitable in spring and autumn. The water layer is kept moist during the growth period, gradually increasing the water layer, and the water layer is kept at 5-7 cm in the later growth stage.

Fertilize in the afternoon or on cloudy days.

The yield of watercress per mu can generally reach about 2,000 catties.

The above is all my reply, I hope to help your relatives, I wish you a happy life.

This one. You can't just build a greenhouse.

Watercress can be grown in the following ways:

1.Sowing

Watercress, which can be purchased at the vegetable market, can be used directly for cuttings, and the old stems are better. If there are adventitious roots, it is easier to survive. Cut the watercress stalks into small pieces of about 10 to 15 cm, each slice has about 3 to 5 knots.

The cuttings are inserted into the soil to a depth of about 3 to 5 cm, preferably semi-recumbent, so that the stems are as close to the soil surface as possible, watered, preferably at a water level of about 1 cm. If you are planting ramets, you should do it about a month after cutting, with a spacing of about 10 cm.

2.Day-to-day management

Moisten the cress to avoid drought. It is often necessary to water the soil to keep it moist. When growing watercress, it is best to plant water, while the water level is relatively shallow.

More fertilizer is needed, but it is better to apply all-element fertilizer, with one decomposed organic fertilizer per harvest. There are fewer pests and diseases in paddy fields, and manual elimination is one of the main reasons. If the pest is more severe, the plant may be flooded, and after the pest has drowned, the water will be drained.

3.Harvest

Cress can be harvested at about 20 cm.

Watercress is also called watercress, water mustard, watercress mustard, watercress planting method is also relatively simple, watercress is also a good choice when planting vegetables on the balcony, watercress taste very good has the effect of clearing heat and moistening the lungs, watercress contains a variety of vitamins have a good anti-aging effect.

Sowing watercressThe watercress that can be bought in the vegetable market can be used directly for cuttings, and it is better to use the old stems, and if there are adventitious roots, it is easier to survive. Cut the stalk of the watercress into small pieces of about 1 o 1 5 cm, each segment is about 3 5 knots. Insert the cuttings diagonally into the soil to a depth of about 3 5 cm, preferably semi-lying, so that the stems are as close to the soil surface as possible, and water thoroughly, preferably maintaining a water level of about 1 cm.

If you want to divide the plants, do it about 1 month after cuttings, with a spacing of about 1 o cm.

Day-to-day managementWatercress likes moisture and avoids drought, and often needs to be watered to keep the soil moist, and it is best to grow watercress when it is hydroponic, and the water level should be relatively shallow.

More fertilizer is needed, but it is best to apply all-element fertilizer, and spray 1 decomposed organic fertilizer every harvest. Watercress has fewer pests and diseases, and it is mainly eliminated by hand in a timely manner. If the insect infestation is severe, you can also add water to flood the plant, drown the pest and then drain the water.

The watercress can be harvested at about 20 cm.

Precautions for watercress planting.

The main insect infestation of watercress is foliar pests. We can't use pesticides on our balconies, and we also want to grow pollution-free green organic vegetables, so we can use chili powder to repel insects and kill insects. To quickly cull a large number of pests, you can use aerosol insecticides that kill cockroaches and mosquitoes at home every day, with low toxicity and no residue.

For root pathogens, it can be watered with pepper water.

Watercress is afraid of both cold and heat. Below 15 degrees Celsius, watercress grows slowly, and the temperature is close to freezing, and it can freeze to death. When the temperature is higher than 30 degrees Celsius, watercress also grows slowly, and will age rapidly, with excessive fiber, and the color turns purple and red, with a strong bitter taste.

Therefore, when the seasons change, it is necessary to pay attention to cold and heat protection.

Watercress Growing Techniques:

Most of the planting in the Yangtze River basin is in mid-October. Before planting, robust seedlings should be selected, and the stems should be thick, the internodes should be short, and the green leaves should be intact. Because the stem of the plant is semi-creeping growth, there is often a distinction between the yin and yang sides, when planting seedlings, the yang side is facing up, and the two sections at the base are planted obliquely together with the root system, so as to facilitate survival.

The row spacing is 15 cm, the hole spacing is 10 cm, and each hole is 2-3 plants.

Management of land preparation and application of base fertilizer: Paddy fields with low terrain, convenient drainage and irrigation, and fertile and loose soil can be selected. Before planting, shallow water tillage rake, combined with ploughing, applied 3000kg of decomposing mature manure or 5000kg of manure per 667m2 as base fertilizer.

After ploughing, rake fine and flatten, keep the field thin mud or a thin layer of shallow water, you can plant. If it is planted on semi-arid land, the ground should be leveled and opened after applying base fertilizer, watered thoroughly, and the soil can be kept moist.

Water management: planting on semi-arid land, watering thoroughly after planting. In the early stage, weeds are easy to grow in the field, so we should weed them in time and water them every 3-4 days.

If it is planted in a paddy field, it is necessary to maintain a water layer of 1-2 cm in the early stage, and then with the growth of the plant, the water level will gradually deepen to 3-4 cm, but it should not exceed 5 cm to prevent rust roots.

Reasonable fertilization: watercress can be harvested 30-40 days after planting. Harvest once, should be timely top-applied 1 time of fast-acting fertilizer, generally every 667m2 sprinkle urea 15kg or urea liquid foliar spray, can also be every 667m2 with 1200kg of decomposed manure, 5 times dilution of water after watering, fertilization time should be selected in the morning and evening.

After harvesting and planting, it can be harvested when the plant is about 25 cm tall. There are two methods of harvesting; One is to pick the tender shoots one by one, and bundle them one by one after harvesting, which is more labor-intensive. The other is to harvest the mud, cut off three-quarters of the whole field each time, step the old roots into the mud, then fertilize and rake flat, and plant the remaining one-quarter of the seedlings again.

This method is mostly used for large-area cultivation.

Asexual reproduction type: Varieties of asexual reproduction type can only be selected to protect the summer reproduction. It is advisable to choose a place with cool ventilation, convenient drainage and irrigation, and it is best to have shade around it, and it should be covered with shade nets when necessary. Pests are prone to occur in summer and should be prevented and controlled in time.

Seed type: Flowering and fruiting variety, with seeds left. In the Yangtze River Basin, buds generally appear in mid-March, pods are formed in early April, and pods ripen in early May.

In order to prevent the mixing of varieties, before flowering, a mesh should be covered to prevent pollination between varieties. When harvesting seeds, it is advisable to do it in the morning and evening to prevent the seed pods from cracking and losing seeds. After the seeds are harvested, they should not be exposed to the sun in order to prevent the temperature from affecting the germination rate of the seeds.

The sun-dried and threshed seeds are stored in a cool, dry and ventilated place.

The leaves are not easy to rot and not easy to burn, and the roots are not easy to rot, but you should pay a little attention to disease prevention.

The specific planting method is as follows:

1. Site selection. Watercress likes cold, is not heat-tolerant, and is suitable for aquatic life. It can also be planted at low altitudes in summer off-season, but be sure to choose a place with cool flowing water underground, and the water temperature (field water temperature) is not more than xt, or choose a shady, higher altitude (more than 500 meters) place, and there should be a cool water source nearby.

2. Transplantation. In summer off-season cultivation, seedlings and cuttings are generally moved in early May, rows of work are left every meter or so, and deep trenches are opened around the field to facilitate drainage and irrigation. The planting row spacing is 10-13 cm, and the plant spacing is about 7 cm.

When planting, the young stems are placed on the surface of the field, so that the base of the soil sticks to a few knots, and the roots can grow.

3. Field management. The water temperature should be controlled in the range of 18-22. Such as:

If the temperature is too high, the growth will be poor and the watercress leaves will turn yellow. Choose a cloudy day or afternoon to apply fast-acting fertilizer, block the surrounding water inlet, do not release water, or leave a small amount of flowing water, and sprinkle about 5 kg of compound fertilizer per mu.

4. Pest control: pay attention to timely inspection and timely prevention.

5. Harvesting. Watercress harvesting should be done in the evening or in the morning on cloudy days, avoiding sunlight. Harvesting standards should be based on domestic or export requirements.

Use bamboo baskets to stack them in layers, leaving space in the middle for ice crushing, and then putting ice crushed on top. Strive for early sales in the evening shipping. After each harvest, fertilization is applied to encourage regrowth.

Heavy harvesting generally begins in mid-June and ends in late October. The yield per mu is 2500 3500 kg, and the harvest time is long, and the high yield can reach 5000 kg.