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Vegetable sowing is not the end of sowing, it is necessary to constantly observe and solve problems in time. To maintain suitable environmental conditions, it takes three to five days from sowing to emergence, and ten days to grow.
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If we don't know the initial germination rate of vegetable seeds, we can test the germination rate in a small amount, spread the vegetable seeds evenly, and then cover the seeds with fine soil, about 1 cm, keep the soil warm and moist, and spray water once a day until the seeds emerge.
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There are a lot of them. For example, deep ploughing of vegetable fields and frequent watering. There are also different methods of sowing different seeds. Tomato and eggplant seeds, for example, need to be soaked in water.
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After the vegetables are basically emerging, you can water some water appropriately at this time to ensure that the soil of the vegetable field is moist, and you don't have to pass through the water, in addition, if the local temperature is still relatively low, it is best to water around noon when the sun is sufficient. Soil moisture: The amount of soil moisture required for seeds to germinate.
It is about 75%, not too wet, otherwise the air in the soil is insufficient, which affects seed respiration; It should not be too dry, otherwise the seeds will not be able to absorb swelling and water, and they will not be able to germinate.
<> more and more vegetables begin to grow before transplanting, the seedlings need to go through a process of breaking roots and growing again. In order to promote the growth of the root system, we plant seedlings after flood irrigation, to create a fully moist soil environment, it takes about three to five days to water the bottom of an important principle is that the bottom water should be sufficient, in the specific operation method, you can turn on the faucet water flow speed appropriately, in order to water at a uniform speed in order several times.
After the emergence of vegetables, it is necessary to strengthen the management to prevent the growth of weak seedlings. After the seedlings emerge, the plastic film can be uncovered, ventilated and breathable, and the vegetable seedlings can also see the sun. The vegetable seedlings that grow must be watered with the right amount of water to grow better and better.
Watering at the budding stage,After the seeds are planted, when the seedlings just emerge, it is easy to grow the stage, the water should be controlled first, if the seedlings are a little wilted at noon on a sunny day, this indicates that it is indeed a drought, and you can use the way of sprinkling to water a little water.
We need to water before we sow the seeds, not after we sow the seeds. After watering, after the soil is half wet and half dry, the soil is ploughed and leveled, and some large clods are picked out and sown again.
Overwatering leafy vegetables.
Vegetables tend to grow thin and long, the leaves are yellow, the plant has a high water content, and the taste is not good and it is not resistant to storage. Fruits and vegetables that are overwatered will cause the plant to grow too vigorously, resulting in no or late fruiting.
Sowing seeds when the temperature is relatively high after the beginning of autumn, the soil can be kept moist by mulching straw, straw, etc., about the depth of the seeds buried in the soil, in principle, the large seeds should be buried deeper, and the small seeds should be buried shallower, generally 2 3 times the width of the seeds. Bury deeper when it's warm, and shallower when it's cold. After sowing, pay attention to watering <>
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When the seedlings first emerge, they should be watered properly, and a large amount of watering is not advisable, which will lead to too much water, root rot, and a large amount of water may also wash down the vegetable seedlings, because the seedling root system is unstable.
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Personally, I don't think vegetable seeds should be watered in large quantities when they emerge, as this is likely to cause them to undergo anaerobic respiration and cause them to die.
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If you do not water during the emergence period, it will cause soil compaction and affect the emergence of seedlings. Keeping the soil moist for three to five days is fine. Maintain suitable temperature conditions, ambient temperature and water temperature.
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Water is to be watered, but don't water so much, because after all, it is just a seedling, don't water too much, just a moderate amount.
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When vegetable seeds emerge, it is not advisable to water more, and not to water a lot. Frequent watering will make the soil temperature unstable and low, which is not conducive to the growth of vegetable seedlings roots, which is not suitable for rooting, less roots, shallow roots, weak stems, and can not meet the requirements of deep roots and strong seedlings, and vegetable seedlings are easy to lodging. Excessive watering is easy to cause low temperature roots, ground temperature is lower than 12 and lasts for a long time, resulting in the growth and development of seedlings is hindered, and the long duration will make the roots not grow new roots, no root hairs, the root bark rusts and rots, the ground part is wilted, and finally the seedlings dry up and die.
Due to the poor root growth, weak stems, poor ability to absorb water and nutrients, its disease and insect resistance is weakened, and it is easy to be infected and pests and diseases, which does not meet the requirements of raw cultivation.
Correct practice: Before planting vegetable seedlings, the bottom water should be watered to ensure the water demand of vegetable seedlings at the seedling stage. After the ridge surface is mulched to let the ground temperature rise and stabilize, the vegetable seedlings are planted.
When planting seedlings, it is necessary to water the seedlings slowly, but the slow seedling water should not be flooded with water, and it is recommended to water the nest water (watering the planting hole) or drip irrigation of the root system of the vegetable seedlings under the film, so that the roots of the vegetable seedlings and the soil are well combined. Generally, no watering is done at the seedling stage, and it is recommended that vegetables be watered after fruiting (peppers have peppers, eggplants have eggplants, tomatoes have the first fruit, and melons have bottom melons). During the vegetable seedling raising period, if it is found that the seedbed is dry (the soil moisture content is less than 16-17), which affects the growth of vegetable seedlings, it should be watered in time.
Watering during the seedling period, the amount of water should not be too large, and it must be replenished through shallow watering or drip irrigation, and do not flood irrigation, so that the soil temperature is greatly reduced. The reasonable amount of watering is based on the degree that the soil around the seedling root system is moist and there is no water accumulation on the surface of the bed soil after water infiltration. Generally, the depth of water seepage is 8-10 cm. If the soil moisture is too high due to excessive watering, the seedlings are prone to rooting, growth or disease.
Watering vegetables during the seedling period should be sunny and warm weather; During the day, 10-12 a.m. is preferred. In general, try not to water in the evening. Since the temperature in the seedbed is not too uniform, the amount of soil evaporation is not uniform; In general, the middle of the seedbed is prone to dryness, and the south is wet.
Therefore, when watering, it is necessary to adapt measures to local conditions and irrigate in sections in strict accordance with the water demand; For the soil that is not short of water, water lightly or without watering to ensure that the seedbed is uniform and the seedlings grow neatly. After the vegetables begin to bear fruit, the demand for water and nutrients increases, at this time, the root system of vegetables has grown and developed strongly, and the ability to resist adverse environments is enhanced.
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Summary. 1. Dry heat treatment. The seeds are dried at a temperature of 50-60 for 3-4 hours, and the germs of the seed epidermis are eliminated by heat.
According to the test, cucumber seeds can generally mature 10 days in advance after dry heat treatment, and can increase the yield by about 20.
1. Dry heat treatment. The seeds are dried at a temperature of 50-60 for 3-4 hours, and the germs of the seed epidermis are eliminated by heat. According to the test, cucumber seeds can generally mature 10 days in advance after dry heat treatment, and can increase the yield by about 20.
2. Damp heat treatment. This method is the same as the principle of dry heat treatment, it also relies on heat to kill disaster bacteria, but the effect is better than dry heat treatment, the specific method is: first put the vegetable seeds into cold water to soak, wait for the seeds to soak and swell and then take out, and then pour into the hot water of 55 and soak for about 10 minutes, so that the seeds are heated evenly, and the heat can be quickly transmitted to the inside of the seeds, and the sterilization effect is better.
3. Pharmaceutical treatment. The more advanced chemical treatment method is to use one part of copper sulfate or potassium permanganate and add 1000 parts of water.
Prepare a liquid solution, and then soak the vegetable seeds in the solution. The soaking time can be determined according to different vegetable seeds, and the seeds of the Apiaceae and Solanaceae family are generally soaked for 36-48 hours; Melon seeds are generally soaked for 12-20 hours; Beans and cruciferous are generally soaked for 4-6 hours. After soaking and disinfection, do not rinse with water, you can directly soak the seeds in warm water again to promote germination, and the time for soaking the seeds in warm water again is the same as the time for soaking and disinfection of the liquid medicine.
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<> land preparation: Plough the land that needs to be grown with vegetables so that the soil is sufficiently coarse and exposed to sunlight. Sowing:
Sprinkle the vegetable seeds on the soil and cover the seeds with soil. Watering: After sowing, pour an appropriate amount of water on the spring bench to improve the germination rate of the seeds.
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No, as long as the soil is slightly moist, throw the vegetable seeds on it, then cover it with a film, and wait quietly for the sprouts to emerge, and a lot of watering will make the seeds rot.
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Vegetable seeds can be watered appropriately before they emerge, because seeds need water and sufficient light to germinate, and meeting these two conditions can make the seeds germinate smoothly.
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Personally, I don't think vegetable seeds need a lot of watering before they emerge, and a lot of watering is likely to lead to one of their deaths.
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Seed treatment methods are:
1. Soak seeds. Generally more germinating species.
Seeds can be sown without direct sowing, and seeds with thicker seed coats can be soaked before sowing. Soaking seeds can be divided into cold water soaking seeds and warm water soaking seeds (the temperature is about 40 degrees is better), the soaking time is generally 24 hours, and the soaking time is too long and nutrients are easy to suffer. Soaked seeds should not be sown in excessively dry soil, as dry soil will rob the seeds of moisture and halt germination.
2. File the seed coat. For seeds with hard, impermeable and impermeable seed shells, the seed coat can be filed (note that the embryo cannot be filed). The filing seed coat method is often used for seeds such as beauty coke, lotus, and yellow oleander, by cutting the seed coat with a knife or grinding off part of the seed coat before sowing, and then soaking it in warm water for 24 hours.
3. Grass and wood ash seed dressing. All seeds with oil wax on the shell can be mixed into a paste with plant ash and water, and the alkali in the plant ash can be used to help remove the oil wax.
4. Freeze cracking. For example, the seeds of elm leaf plum are sown and watered thoroughly before the winter fiefdom, and after the ground freezes in winter, the seed shell is broken, and it can germinate in the spring of the next year.
5. Sand storage. For example, the seeds of osmanthus and roses, after harvesting in late autumn, mix them with wet sand, put them in pots, and then place them in a ditch about half a meter deep, cover them with straw, and take them out after the spring of the second year to sow them, and they can germinate quickly.
6. Drug treatment. For some seeds with hard seed coats, drug treatment can also be carried out to change the permeability of their hard seed coats and make them germinate quickly. Usually soak the seeds with 2% 3% hydrochloric acid, soak until the seed coat is soft, take out the seeds, rinse them with water and take care of them.
Seeds such as peony and canna can be used in this method.
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(1) Sowing period.
Seedlings in mountainous and understory land are selected to be gently and moist on the slope, and it is more suitable for farmland seedlings to be cultivated in sandy loam land with convenient drainage and irrigation. The germination treated seeds were sown in the field by early August.
2) Sowing method.
Sow. After doing a good job of furrowing, the furrow surface soil 2 cm thick to the furrow or the operation road, and then the furrow surface is flattened, according to 10 20 meters 2 of the plot to do a good mark, according to each square meter with fresh seeds 120 150 grams of sowing amount to weigh out the seeds required in the area of the plot, after weighing and mixing with a small amount of fine river sand, sow the seeds of 2 3 in the area of the plot first, with the remaining 1 3 seeds to re-sow uneven places or not sown to the place, after reseeding, the furrow side or the spare soil on the operation road is covered to the furrow surface 1 cm thick, with a wooden rake flat, Cover with pine needles or straw to moisturize. 667 kg per 2 m with fresh seeds 65, 70 kg.
Channeling. Before sowing, do a good job of sowing ruler board, method: select 4 thin and straight planks, sawn into a board with a width of 3 5 cm, the length and width of the plank, put 4 planks on the flat ground, the distance between the planks is 8 10 cm, and then fix the two ends of the 4 planks with planks and iron nails, and make a 3 5 cm between rows and a 3 10 cm sowing width of 3 10 cm.
When sowing, the ruler board is placed horizontally on the surface of the furrow, the seeds mixed with fine river sand are evenly sown into the sowing width according to the sowing amount, and the soil is covered with 1 cm after sowing a plot, and the cover is covered after the furrow surface is flattened, and the thickness of the cover is 4 5 cm. 100 120 g of fresh seeds per square metre and 60 kg per 667 m2.
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You have to plant trees and you have to plant flowers and you have to plant them at noon and nine o'clock in the evening, and you can plant them in places like that, if you see a flower garden or a vegetable patch.
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It can be held daily at 1 p.m. and 9 p.m.
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Hehe, take the vegetable seeds, dig a pit in a piece of land, put the seeds, bury them, and hahaha
You don't know how to plant, it's better to learn how to grow peonies first.
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