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Melon seedlings can be sown early, shorten the field growth cycle, improve the field land utilization, and at the same time can also improve the survival rate of melon seedlings, the seedlings are complete and the seedlings are strong, laying the foundation for a bumper harvest. Seedling raising greatly reduces the amount of seeds used (about 1 2), thus reducing production costs. At present, in addition to the low survival rate of transplanting in the arid areas of Northwest China and the few seedlings, almost all melons cultivated in East China, South China, Central China and North China protected areas are planted by seedling transplanting.
1) Seedling bed Melon seedling bed should be set up in a flat terrain, convenient seedling transportation, leeward and sunny area. In order to facilitate manual management and operation, a single seedbed should be made into a bed furrow with a length of 7 meters, a width of meters, and a diameter of 8 10 cm and about 700 plastic seedling bowls.
2) heating mode At present, most of the electric cloth is laid under the seedbed, the electric ** is 100 meters long, the voltage is 220 volts, the current is 4 amps, the power is 800 watts, and 14 rows can be detoured according to the row spacing centimeters in the single seedbed. The overlying soil layer is 2 cm thick, and it can be loaded into the seedling cup.
3) Seedling soil melon seedling soil can be taken from local materials, select fertile and loose vegetable garden soil or paddy field soil, weathered river pond mud and furnace ash, livestock and poultry manure, pile up and rot for 3 months. If necessary, a small amount of nitrogen, phosphorus and potassium fertilizers can also be added to the culture soil in proportion.
4) Sowing seeds See questions 52 and 54 for details.
5) Seedling age The number of days from seedling emergence to planting is called seedling age. 7 10 days, cotyledonous seedlings; The seedlings are small and can be transplanted without soil. 20 25 days, 1 2 true leaf seedlings; The seedlings are large and need to be transplanted with soil.
30 35 days, 3 4 true leaf seedlings; The seedlings are large, and the seedling bag must be large and bring more soil. Generally, it is better to plant seedlings with 1 2 true leaves in 20 to 25 days.
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After the melon is planted, it enters the seedling stage management, and the seedling stage does not end until the melon stretches out and blooms.
1) After checking the seedlings, replenishing the seedlings or planting, check the seedlings in time, and find that the seedlings are missing or sick and disabled seedlings should be filled with prepared seedlings in time.
2) The root development of loose soil and weeding melon seedlings is slow, in order to promote the growth of the root system, it is necessary to water less or no watering, so as to facilitate squatting seedlings. In addition, it is necessary to loosen the soil, weed, pack the roots, and cultivate the soil 2 or 3 times.
3) When the seedlings and seedlings are sown in the hole, 2 3 seeds are sown in each hole, and the seedlings and seedlings are set after the seedlings emerge and the time are sown, and finally only 1 strong seedling is left in each hole. Seedling thinning is carried out from cotyledons to the first true leaf, and the crowded melon seedlings are loosened, leaving a maximum of 2 seedlings per hole. Seedling fixing is carried out at the 2nd and 3rd true leaf stage, leaving only 1 of the best seedlings in each hole.
4) Fertilizer and water management: melon seedlings should not be applied with large fertilizer and water, so as not to grow, but can be diluted human and animal manure (must be rotted) lightly watered 1 2 times to promote the growth and development of roots and stems.
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Generally, irrigation areas use the method of ditching first, then watering, and then sowing seeds. In the dry land of the north and the rainy areas of the south, there are also those who "grab moisture" for sowing without irrigation.
When irrigating before sowing, the mulch film is often spread about 3 days after the irrigation infiltrates, and the sowing holes are dug along the watermark line, and 2 3 seeds are sown in each hole, and the sowing holes are about 10 cm in size and 2 3 cm deep. After the seeds are sown, cover them with 1 2 cm of wet soil.
When sowing seeds, the surface dry soil should be shoveled off with a melon shovel, replaced with deep wet soil around or manually watered with a spoon, and then sown the seeds and cover the soil.
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How to raise melon seedlings before planting? Pay attention to these four points, and you can easily raise seedlings by doing them! Melon planting seedlings.
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Melon seedling cultivation should start from the preparation of soil, the treatment of seeds, the control of water and fertilizer and the adjustment of temperature. The soil should be loose, fertile and acidic, the seeds should be disinfected and soaked to promote germination, watered moderately, applied foot fertilizer, and the temperature should be stable above 13 degrees Celsius, so that the plants can emerge.
1. Soil preparation
Melons are generally sown seedlings by sowing method, before starting the seedling work, the soil suitable for its growth and development should be prepared, this plant is suitable for living in the soil with a certain drainage and air permeability, the overall loose and porous structure and acidic soil, and the soil can not have too much clay components doped.
2. Seed treatment
If the melon is planted directly without treatment, its germination rate is very low, so it is necessary to select high-quality seeds with full skin and no moth-eaten mildew, soak them in a disinfection solution for sterilization, soak them in water for about 10 minutes, let them absorb water and awaken vitality, which can be used for sowing and seedlings.
3. Water and fertilizer control
After planting, the melons should be watered once, this time thoroughly watered, but not to leave stagnant water or leave the soil in a prolonged drought state, and to apply enough organic fertilizer as a base fertilizer before planting, after which until planting, the melons should not be topdressed.
4. Temperature adjustment
The growth and development of melon has certain requirements for temperature, this plant is suitable for living in a relatively warm environment, and its seeds can not germinate normally in a low temperature environment, so it is necessary to ensure that the ambient temperature is stable above 13 degrees Celsius, preferably around 25 degrees Celsius, and the plant will grow faster.
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In order to ensure the normal growth of melon seeds, the first step is to prepare suitable soil for germination, that is, nutrient soil. Mix the rotted animal manure with the ashes in a ratio of about 2:3.
After mixing, stir evenly, and then use a sieve to remove the larger particles. And use carbendazim to disinfect the nutrient soil to avoid bacterial infection of the seeds.
In order to ensure the germination rate of melon seeds, germination treatment is required. Expose the seeds to the sun for 1-2 days, then soak them in hot water at 50 degrees Celsius for 15-20 minutes, stirring constantly. After removal, sterilize with diluted potassium permanganate solution to avoid residual bacteria.
After disinfection, wash the drug from the seeds, wrap it in a damp cloth and place it in an environment of 28-30 to induce germination.
Wait until the seeds have sprouted and you can start sowing. Water the potting soil before sowing to keep the substrate moist. Place the seeds on the surface of the potting soil and cover it with a layer of soil after centimeters.
And cover it with mulch to keep it warm and moisturized. Seedlings can grow in about 5 days, after which the mulch film should be lifted to allow the seedlings to receive a certain amount of light.
In the early stages of seedling growth, temperature control is particularly important. The temperature stays between 20-25 during the day and around 8-10 at night. In order to prevent frost damage at night, you can cover it with mulch and uncover it during the day.
It can also be made a little warmer, which can speed up the emergence of seedlings, but it is not suitable for watering at this time.
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Summary. 3.The fruit of the whole vine melon is mainly grown on the seed vine and grandvine, and the topping and vine must be plucked and the whole vine must be carried out to facilitate the fruiting. Generally, six vines can be used, when the melon vine has 5-6 leaves, leave 4 leaves for topping, leave 2 sub-vines, and then leave 3 grandchildren for each sub-vine.
Hello, Hu Xiaozha is happy to answer for you, the planting of melons and management techniques are including the following five points: 1Planting time: melons are generally propagated by seeds when planting, there are many varieties, and the suitable sowing date is in 8-10 months, no more than 11 months at the latest, and spring sowing can generally be in 2-3 months.
The suitable temperature for the growth of melon is 18-25, and the suitable temperature for flowering and fruiting is 22-25.
2.The suitable seedling age for planting melons is 30-35 days, and the seedlings can be planted when they grow to 3 leaf hearts. Its root group has a strong absorption capacity, and it is better to choose sandy soil with thick soil layer and fertile and loose soil, and melon is more desensitized and salt-alkali tolerant than Yefeng, so it can also grow on lightly alkaline soil.
3.The fruit of the whole vine melon is mainly grown on the vine and the vine, and the topping and vine must be carried out, which is beneficial to disturb the fruiting potato. When the melon vine has 5-6 leaves, leave 4 leaves for topping, leave 2 sub-vines, and then leave 3 grandchildren for each sub-vine.
4..Water management: The lack of liquid during the growth period is different, and the water requirements of sweet melon are also different. When just planting, melons need to be watered with a small amount of planting water, not too much, to avoid root water rot.
Usually no watering is required during the flowering period, and a small amount of water is applied in particularly dry weather. The melon has just bloomed, and it can be watered thoroughly at one time, and it should not be flooded.
5. Fertilization management, when planting melons, we should pay attention to the application of foot fertilizer, you can use farmhouse fertilizer, you can also apply potassium sulfate compound fertilizer. When the plant bears fruit, Li Sanyan needs to be topdressed in time, melon is a potassium-loving crop, can be combined with watering to supplement melon with high nitrogen and high potassium compound fertilizer.
How to plant. First, soak the seeds to germinate: soak the melon seeds in warm water for five hours, then mix them with wet sand and put them in the seedling tray to germinate.
2. Sowing method: sow the seeds of sweet round Naqi melon into the planting ditch, and cover the soil with watering. 3. Transplanting and planting:
Transplant melon seedlings and oranges into the plot as soil. 4. Post-planting management: build an awning for melon seedlings to prevent strong light exposure.
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The details are as follows:1Choice of sowing date.
Melons are a rain-resistant crop. In order to achieve the purpose of high quality, high yield and high efficiency, the selection of sowing date is particularly important.
In the Yangtze-Huaihe region, it is advisable to raise seedlings in protected areas from early and mid-February to early March, and earlier in Liangguang, Hainan and Yunnan-Guizhou. Autumn extension cultivation should be sown from early July to July 25.
2.Breed selection.
In open field cultivation, we must choose early-maturing thin-skinned and medium-skinned melon varieties that are moisture-tolerant, easy to set fruits, and have wide adaptability, and most of the thick-skinned melons cannot be cultivated in the open field.
3.Seedling.
It is basically the same as the melon seedling in the protected area.
4.Colonization.
In the northern region, when the soil temperature is stable above 15, it is planted on ridges covered with small arches or mulch.
Choose a sunny day for planting. Due to the precipitation and air humidity in the south of the Huaihe River, in order to facilitate ventilation, it is advisable to plant in a single row, with a plant spacing of 35-40 cm, and in the north of the Huaihe River, there is less rain and less air humidity, and it can be planted in two rows, with a plant spacing of 40-50 cm and a triangle planting. After planting, water enough root water, spread mulch, if the temperature is still lower than 15, you can add a small arch shed on the small ridge to keep warm.
5.Field management.
1) Pruning. Pruning can promote early fruiting of melons, good fruit development, reduce nutrient waste, and improve quality and fruit commerciality.
2) Leave fruit. Melons are easier to set fruits, and under suitable conditions, each plant can sit with 3-6 fruits. If there is continuous low temperature and rain during the fruit setting period, pollination should be assisted manually.
6.Fertilizer and water management.
Cultivation in the open field in rainy areas will not occur in general without water shortage, but in the following periods, attention should be paid to controlling the timely supply of water:
In the early stage of vine extension, in order to promote the growth of seedlings, a small amount of water can be irrigated with a ditch;
Squatting seedlings, when the melon vine grows to meters, the water should be properly controlled, squatting seedlings should be carried out to promote the growth of the root system, and the melon seedling leaves (especially the young leaves near the growth point) will become dark green, and a small amount of water should be irrigated in the ditch in the morning on a sunny day to ensure the demand for water during the fruit setting period;
The whole flowering and fruit-setting period should be as far as possible without irrigation and fertilizer, so as to control the growth of plants and promote fruit setting
During the whole fruit expansion period, irrigation is required to be sufficient and uniform (drip irrigation, furrow irrigation, non-flood irrigation), and do not be dry and wetAt the beginning of fruit expansion, the plant's demand for fertilizer and water increases sharply, at this time, combined with irrigation, 20 kg of ternary compound fertilizer (15:15:15) per mu, 5-10 kg of potassium sulfate and a small amount of micro fertilizer (can also be sprayed on the foliar surface) in the middle and late stage of fruit expansion (about 15 days after fruit setting) The plant shows insufficient fertility (such as the root leaves are slightly yellowed), and the compound fertilizer water can be sprayed on the foliar surface every 2-3 days to prevent premature plant senescence and improve quality.
After the end of fruit expansion until ripening, the supply of fertilizer and water should be stopped to prevent fruit cracking, and old leaves and diseased leaves should be cut off, so as to reduce the occurrence of diseases and improve quality.
7.Harvest.
The fur falls off and is scented. Varieties that are exported or need to be transported over long distances should be harvested before the fruit has completely changed color, and those that are sold locally should be harvested when they are fully ripe.
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How to raise melon seedlings before planting? Pay attention to these four points, and you can easily raise seedlings by doing them! Melon planting seedlings.
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