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Top dressing begins about a week after planting.
Generally, within one week after transplantation, due to root damage and poor absorption function, fertilization is not suitable for crops. After about a week, new roots grow and the absorption capacity increases, at which point a small amount of topdressing can be started to promote the recovery of the aboveground parts. After a period of time, when it is found that the aboveground part grows faster, it means that the root system has grown out in large quantities, and at this time, it can be topdressed with a normal amount and transferred to normal management.
Top dressing is mainly fast-acting compound fertilizer, which can be matched with organic fertilizer in a ratio of 1:1. Generally, high-nitrogen compound fertilizer is used at the seedling stage to promote the growth of leaves and rapidly expand the seedling crown.
When topdressing, the fertilizer can be melted in water and absorbed better. If applied dry, bury carefully to reduce nitrogen volatilization loss. The frequency of top dressing is about once every six months.
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FYI:1Choose the right soil conditions.
The cultivation site should be sandy loam soil or loam soil that is easy to drain and irrigate, and should not be combined with cruciferous crops.
2.Apply sufficient base fertilizer and fine land preparation.
Fine land preparation should be deeply turned white, 800kg of organic fertilizer per application of rotting fertilizer, top dressing should be started after slow seedlings, and 50-80kg of N, P and K compound fertilizer should be used as base fertilizer. After fertilization, plough and turn over the furrow, and the furrow is wide.
3.Reasonable dense planting.
Planting is carried out in the afternoon on a sunny day. Two rows per furrow, row spacing 50-60 55-1750px, 667 1500-2200 plants, after planting, water the root water in time to promote early return to seedlings and improve the survival rate.
4.Field management.
Water and fertilizer management. Changsheng 80 days" has less water requirements in the early stage and more in the middle stage, the soil in the field is kept moist, and attention is paid to timely drainage in case of heavy rain to prevent pickling. 6-10 days after topdressing and planting, every 667 with 6-7kg compound fertilizer mixed with water. As topdressing fertilizer, top dressing 2-3 times according to seedling conditions during the growth period, reapplied at rosette stage, mainly nitrogen fertilizer, combined with phosphorus and potassium fertilizer.
At the early stage of budding, the leaves close to the flower bulb are folded inward to cover the flower bulb to avoid direct sunlight, which is conducive to keeping the flower bulb tender and white and improving the commodity rate.
Pest and disease control.
During the growing season, pay attention to pests such as black rot and sclerotinia sclerotinia disease, diamondback moth, cabbage worm, whitefly and so on. At the beginning of the disease, the larval stage of insect pests should be sprayed in time for control, and when it rains 2 hours after spraying, it will be sprayed in time after the sunny.
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Cauliflower needs fertilizer very much in the process of growth, and fertilizer does play a very important role in the growth of many crops. When planting cauliflower, you need to apply nitrogen fertilizer to cauliflower, and when it comes to the growth stage of the flower bulb in the middle of cauliflower, you need to apply phosphorus fertilizer or potassium fertilizer. In addition, when fertilizing cauliflower, it depends on what kind of cauliflower it is, and the fertilization methods and amounts of early-maturing spring varieties and medium-late maturing varieties are also different.
Cauliflower needs different fertilizers at different stages of growth and development, and it needs nutrients more when it is just growing, so it is necessary to give cauliflower nitrogen fertilizer, and it is best to use nitrate nitrogen. If nitrogen fertilizer is applied well at this time, it can improve the yield and quality of cauliflower bulbs. During the flower-bulb formation period, more phosphate and potassium fertilizers are required.
At the same time, cauliflower also needs trace elements when growing, such as boron, magnesium, calcium, etc., if these trace elements are deficient, the photosynthesis of cauliflower will decline, and the metabolism will be out of balance, so the growth and development of cauliflower will be affected. <>
If you want a high yield of cauliflower, you must meet the water and nutrients for cauliflower growth. Before planting cauliflower, in addition to applying foot fertilizer, it is necessary to properly top dressing, if it is an organic fertilizer in the varieties planted in the early spring, it should be applied before planting, and inorganic fertilizer should be applied when planting. If it is cultivated by mulching or small arch canopy planting, you can open a ditch in advance to fertilize, and then attach mulch film after watering.
If it is a medium and late maturing variety, because the growth cycle is relatively long, the fertilizer required is also relatively large, in addition to doubling the base fertilizer, the number of top dressing is also more. For example, the first top dressing is slow seedling fertilizer, which is generally carried out in about 7 10 days of planting, and nitrogen fertilizer is generally applied during this time. The second fertilization is to chase the ball, so the general application is fast-acting potassium fertilizer and nitrogen fertilizer.
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It is necessary to focus on organic fertilizer, to add trace elements appropriately, to grasp the concentration of fertilizer, to pay attention to spraying fertilizer evenly, to water properly.
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Cauliflower is a relatively common food in real life, and it is also necessary to master the correct steps in the process of planting cauliflower and leafy vegetables. Because the growth cycle of cauliflower is very short, and the growth rate is relatively fast, so the requirements for nutrients in the early stage of concealment are also relatively high, and it is best to sprinkle some organic fertilizer. This vegetable prefers a cool climate, does not have a strong cold tolerance and heat resistance, and has very strict requirements for temperature during the growth period.
If the cauliflower lacks boron, the center of the glasses will crack, and the color of the flower bulb will turn brown and very bitter. When cauliflower is deficient in magnesium, the leaves will turn yellow. <>
When planting flowery vegetables, you can choose to apply nitrogen fertilizer, which can increase the yield, and can also allow the cauliflower to absorb sufficient nutrients, which is conducive to the growth of cauliflower. During the flowering period, you need to eat nitrogen fertilizer. It is also necessary to grasp the amount of phosphate fertilizer and organic fertilizer.
Top dressing is also more important, in the process of fertilization do not get too close to the roots of cauliflower, should be around the cauliflower ditch fertilization, choose high-quality organic fertilizer, can make cauliflower grow healthier. In the process of fertilization, it is also necessary to grasp the time, cauliflower in the process of growth also has a germination period and a seedling stage, when the flower bulb is formed, fertilizer is needed, the amount of fertilizer can not be too little, not too much. <>
If there is too little fertilizer, the cauliflower will not be able to absorb sufficient nutrients, and it will be easy to malnourish, which will also affect the later harvest. If the amount of fertilizer is too much, it will be easy to make cauliflower overnutrients, and it will also affect the subsequent harvest.
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When planting flowers and leaves, it is necessary to apply fertilizer in the early stage of growth and lack of rotten oranges, nitrogen fertilizer is needed in the middle stage of wood-stimulating growth, and magnesium sulfate is also needed in the soil lacking magnesium.
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You can choose organic fertilizer, phosphate fertilizer and organic elements are combined and stirred well, and then fertilized directly. Three times a day.
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Before planting, you can apply base fertilizer, then plant, regret that it has germinated to know that it has been believed, and then apply fertilizer every two weeks, preferably organic fertilizer.
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Summary. Hello, is there a **? It is best to have the ** of the roots.
Hello, is there a **? It is best to have the ** of the roots.
Field. The soil is wet, and the temperature is up to more than 20.
How much is the minimum?
The minimum is more than 10 degrees.
If the soil is wet, it is recommended that it is best to tease the boring cultivator, or you can use a micro-tiller to operate the line and plane. Then control the water, and wait for the soil to dry out to disturb the hail before watering, this water can bring some rooting slow sails.
It's all watered.
If the ground is wet, it is better to water it when it is dry.
I judged that it was caused by overwatering, and with the addition of silver mulch, although it was weed-proof, he was not able to raise the ground temperature, which was caused by two reasons.
No herbicides, right?
It is recommended to control the water and control the water, the ground temperature will be chaotic, and the root loss will begin to grow. Foliar can be used with 14 hydroxy brassinin 10 ml + Yishi Bang 30 ml.
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Generally, about 2,000 kg of rotting organic fertilizer and 30 kg of superphosphate are applied per mu. The growth period of early-maturing varieties is short, and the absorption of soil nutrients is less than that of medium-late maturing varieties, but they grow rapidly and have urgent requirements for nutrients, so the basal fertilizer of early-maturing varieties should be mainly available nitrogen fertilizer. In areas where soil boron content is deficient, 1 kg of boron fertilizer is applied per mu of basal fertilizer.
Cauliflower topdressing should be mainly based on available nitrogen fertilizer, combined with phosphorus and potassium fertilizer to promote the expansion of flower bulbs. Generally, the whole growth process needs to be topdressed 4 times. For the first time, about 7 days after planting, 15-18 kg of urea and phosphate fertilizer were applied per mu and watered; For the second time, 15 days after planting, 15 kg of urea, 20 kg of phosphate fertilizer, and 5 kg of potassium chloride or potassium sulfate were applied per mu; The third time was reapplied before the bud, and 40 kg of ternary compound fertilizer was applied per mu; For the fourth time, after the bud, 10 kg of urea was applied per mu, mixed with water or foliar spray with urea plus borax solution.
Compared with that in open field, the nutrient uptake intensity of cauliflower in protected land was significantly higher from early flowering to harvest, and special attention should be paid to topdressing in the late growth stage to avoid reducing the yield due to defertilization.
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There are many varieties of cauliflower, which can be planted all year round, the more early-maturing and early-maturing varieties are heat-resistant and high-temperature resistant, this variety of cauliflower can be planted in summer, the time is from June to September, the medium-ripening and late-maturing varieties are not resistant to high temperatures, but more cold-resistant, this variety of cauliflower is suitable for planting in November in spring and winter to February of the following year.
Cauliflower sowing time.
Cauliflower, also known as cauliflower, cauliflower, cabbage flower, cauliflower, and Brussels sprouts, is a plant of the Brassica genus in the cruciferous family.
There are many varieties of cauliflower, can be planted all year round, the more early and early varieties are heat-resistant, high-temperature resistant, this variety of cauliflower can be planted in summer, the time is from June to September, the medium-ripening and late-maturing varieties are not resistant to high temperatures, but more cold-resistant, this variety is suitable for planting in spring and winter from November to February of the following year.
Cauliflower sowing method.
1. Cauliflower can be sown directly, because its seeds are relatively small, we must sow evenly, after sowing, cover with a layer of organic soil, and then water it, about 3 to 4 days to begin to germinate.
2. The ambient temperature of cauliflower, generally 20 to 25 degrees, if the temperature is above 25 degrees, it will lead to the slow formation of the flower bulbs, and it will be easy to frostbite the cauliflower below 0 degrees, its viability is very strong, but to grow better and more high-quality cauliflower, you should choose sandy soil rich in organic matter, and the soil pH value is between.
Cauliflower planting essentials.
1. The demand for water of cauliflower is relatively large, so we should always pay attention to whether the water of cauliflower is sufficient, and insufficient water will affect the growth and formation of flower bulbs and the quality of flower bulbs.
2. In the process of cauliflower growth, weeds should also be cleaned up in time, which can reduce the loss of nutrients, and can also cooperate with loosening soil during weeding to make the root system better absorb nutrients.
3. In the process of cauliflower growth, it is also necessary to apply reasonable fertilization, seedling fertilizer can be applied after one week of cauliflower planting, and compound fertilizer can be applied after three weeks of plant growth, so that the root system of cauliflower can grow rapidly.
4. The leaves of cauliflower are relatively wide and hypertrophied, and they are easy to be infested by insect pests, especially cabbage insects, aphids and other insect pests.
Cauliflower ripe harvest.
Cauliflower will generally be seedlings in July and August, transplanted in August and September, the seedling age is about 30 days, and about 2600 plants can be planted per mu, and the harvest time is about 10-11 months.
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Cauliflower, also known as cabbage, is a very common vegetable in rural areas, delicious, rich in vitamin K, has a good anti-cancer and anti-cancer effect, regular consumption can detoxify the liver, thicken the blood vessel wall, not easy to rupture, improve the body's immunity, so how to fertilize cauliflower with high product quality? Let's take a look!
1. Types of fertilization of cauliflower.
Cauliflower is a shallow-rooted plant, which likes moisture and is afraid of waterlogging, and requires loose soil and good fertilizer retention.
Therefore, high-quality organic fertilizer is mostly used as base fertilizer in production.
Such as well-rotted chicken manure, manure, biogas slurry, plant ash, etc., in addition to the application of basal fertilizer should also be applied an appropriate amount of available nitrogen, phosphorus fertilizer, top dressing is generally carried out in the early stage of flower ball formation, mainly available nitrogen fertilizer and potassium fertilizer, autumn cultivation of medium and late varieties, in addition to sufficient base fertilizer, there should also be 2 3 times of top dressing, the amount of base fertilizer should be more than spring early cultivation and fertilization, top dressing is still based on available nitrogen and potassium fertilizer.
2. Cauliflower fertilization period.
To grow cauliflower to obtain high-yield, high-quality flower bulbs, there must be a strong leaf cluster to ensure it.
It is required to meet its demand for water and nutrients in a timely manner, so that the plants can grow vigorously in a timely manner, so that they can form sufficient vegetative area in front of the hail group.
Therefore, under the premise of applying sufficient basal fertilizer, top dressing should be carried out in a timely manner.
In the middle and late stages of cauliflower bulb formation, in order to prevent premature aging, improve yield and flower bulb quality, foliar spraying can also be applied 1 2 times of three-element compound fertilizer.
Foliar fertilization had a very obvious effect on the soil with symptoms of fertilizer deficiency and poor fertilizer retention in the middle and late stages of cauliflower growth and development.
3. The amount of fertilizer applied to cauliflower.
Due to the short growth period, 2500 kg of high-quality organic fertilizer, 20 kg of urea, 20 kg of superphosphate and 50 kg of plant ash are applied to the base fertilizer per mu.
If available molybdenum and available boron are deficient in the soil, 50 100 grams of borax and 10 20 grams of ammonium molybdate can be applied per mu after being dissolved in water and mixed with organic fertilizer or chemical fertilizer fully mixed as base fertilizer.
Cauliflower medium and late maturing varieties or autumn cultivation, the amount of basal fertilizer is more than twice that of early maturing cultivation.
It is recommended that the amount of top dressing accounts for more than half of the total fertilizer, and 15 kg of urea and 100 kg of plant ash are applied per mu.
The application of trace elements is the same as that of early maturing cultivation.
4. Fertilization method of cauliflower.
The application method of cauliflower base fertilizer is to first pile organic fertilizer with phosphate fertilizer and medium and trace element fertilizer for a period of time per mu, or fully mix phosphate fertilizer, medium and trace element fertilizer and commercial organic fertilizer, and then combine it with land preparation and sprinkle it into the soil.
Fast-acting inorganic fertilizers such as nitrogen fertilizer and potassium fertilizer can be applied in the hole during planting.
Cauliflower topdressing is mainly fast-acting fertilizer.
Top dressing before the formation of flower bulbs can be fertilized in a ditch, or fertilized by digging a hole next to the plant.
Cover the soil and water after application.
After the flower bulb is formed, it is difficult to dig a ditch and dig a hole, so the fertilizer can be washed or watered with water.
Foliar fertilization, such as urea spraying or potassium dihydrogen phosphate, can also be used.
That's all for the content of cauliflower fertilization, welcome to read other agricultural content on cucumber network.
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