How to top fertilizer sunflowers, and what elements should be used in fertilizer?

In the first month after sunflower planting, the top dressing fertilizer is mainly organic fertilizer, preferably fertilizer containing nitrogen, potassium, phosphorus and other elements. The concentration should not be too high, and water should not be allowed after fertilization.

Master the principles of scientific fertilization, and deal with different fertilizers at different fertilization stages. There is a principle that we need to grasp in the process of fertilization. In other words, as long as the timing of base fertilizer, fertilization, and top dressing is appropriate, it can be guaranteed that there will be no fertility problems caused by fertilizer shortages at all stages.

The absorption of oil sunflower fertilizer is less in the early stage and more in the later stage; More potassium, followed by nitrogen, least phosphorus. At the seedling stage, 5-7 kg of urea can be topdressed per mu, and topdressing can be combined with watering and ditching at the flowering stage. 15-20 kg of urea per mu, 10-15 kg of potassium sulfate, and the depth of fertilization is about 10 cm.

The water requirement in the early stage of growth is small, and too much rain will lead to growth, and the water on the surface should be drained in time to avoid the death of rotten roots. At present, the flower buds have reached the filling stage, and in case of drought, they should be watered in time. Top dressing during flowering, which helps to increase yields.

Two methods of strip application and hole application were used to choose freely, and the effect of nitrogen topping in the early stage of flowering and potassium topdressing in the late stage was better. The proportion of urea, ammonium nitrate, diammonium phosphate and potassium chloride per mu is kilograms. Sunflowers grow vigorously in the middle and late stages.

There may be a lack of oxygen, and it is necessary to use urea solution or zinc, molybdenum, manganese boron and other micro-fertilizers for the leaves to achieve the purpose of improving product quality. Oil sunflower has the characteristics of long roots and deep roots, and basal fertilizer must be carried out. The base fertilizer can be mixed with phosphorus fertilizer in human manure or livestock and poultry manure to make compost, which can be applied to the rake suction or sowing strips, with a yield of tons per mu to meet the needs of fertilizer at the seedling stage.

Sunflower planting is more common in rural areas, and many people like to plant a few rows of sunflowers in the ground, and wait for the sunflowers to mature before planting sunflowers.

The large-scale planting of sunflower is mainly distributed in Inner Mongolia, Xinjiang, Gansu, Heilongjiang and other places in China, planting commercial sunflower or oil sunflower oil oil sunflower for the production of sunflower seeds. In the past few years, in the Liaocheng area of Shandong where I work, the cultivation of oil sunflower is also very prosperous, and the farmer has planted a few acres of oil sunflower, and it is a very good choice to squeeze the oil to eat and sell it after harvesting the celery stool. Top dressing during flowering, which helps to increase yields.

Two methods of strip application and hole application were used to choose freely, and the effect of nitrogen topping in the early stage of flowering and potassium topdressing in the late stage was better.

Oil sunflower is more resistant to high temperature, is a kind of fertilizer that needs more fertilization, during the period from seedling emergence to flower disc formation, it needs more chemical fertilizer containing phosphorus, and the final flowering stage needs nitrogen and potassium fertilizer; Be careful not to fertilize too much at once, sunflowers are more drought tolerant and should not be irrigated often.

Fertilizer is the main nutrient of sunflowers**, and reasonable fertilization is the key to high yield of sunflowers. Fertilization should be carried out according to the law of fertilizer demand, and the specific methods are as follows.

First, the base fertilizer. Organic fertilizer is the main ingredient combined with chemical fertilizer. Confessional Qi Jing period and method.

Autumn application of basal fertilizer combined with tillage is more conducive to fertilizer retention and seedling emergence rate than spring application. Fertilization method, combined with mechanical operation, the use of paving, harrowing, tillage. Horse-drawn farming implements, fertilizing in furrows, and then joint ridges.

Fertilizer dosage. 1000-2000 kg of organic fertilizer, 5-8 kg of chemical fertilizer, 5-8 kg of nitrogen fertilizer, and 4-5 kg of phosphorus pentoxide (P2O5) per mu. Potash fertilizer can be controlled according to the soil potassium content derived from soil testing.

If it reaches the normal standard, it is not necessary to apply potassium fertilizer, and if it does not reach the normal standard, 3-4 kg of potassium sulfate can be applied per mu.

2. Seed fertilizer.

Seed fertilizer is mainly phosphorus application to achieve the purpose of strengthening seedlings. For example, ammonium bicarbonate or calcium phosphate plus a small amount of urea can also be used as seed fertilizer. The use of seed fertilizers. In combination with sowing, apply organic and chemical fertilizers 2-3 cm under or next to the seeds.

3. Top fertilizer. The fertilizer applied after the emergence of sunflowers is called Rangling top dressing. Sunflower is a crop that requires a lot of fertilizer.

Only basal fertilizer and oral fertilizer can not fully meet the vegetative growth and reproductive growth of sunflower at the budding stage and late growth stage, and then the nutrient demand. Especially for summer sunflowers, top dressing is more important when the base fertilizer is insufficient or not applied. Top dressing is mainly nitrogen fertilizer, with a certain amount of potassium fertilizer.

The types of fertilizers include ammonium nitrate, urea, ammonium bicarbonate, potassium chloride and other fertilizers, as well as well-rotted human manure, plant ash and other fast-acting fertilizers. Generally, dig a small pit 10-15 cm from the roots of the sunflower, and then cover it with soil. The depth of fertilization depends on the type of topdressing and soil moisture.

Volatile fertilizers such as ammonium bicarbonate and ammonia should be applied deeply, and when the soil is dry, it should also be applied deeply, so that the fertilizer can be in contact with the moist soil, so as to facilitate the timely use of fertilizer effect. If the early topdressing of the cultivator is adopted, it can be used in combination with the first cultivating, the depth of the tillage is 8 10 cm, and it must be about 15 cm away from the seedlings. In the later stage of topdressing, it can be combined with the next tillage, topdressing between rows, and the tillage depth is still 8 10 cm.

In short, when topdressing, we should pay attention to the depth, and apply it to the moist soil layer, but do not damage the root system of the plant because of the deep application, and be careful not to let the fertilizer get too close to the plant and burn the root system.

4. Spray fertilizer on the front of the leaves.

Spraying zinc, copper, manganese and molybdenum solutions at the budding stage of sunflower can increase the oil content of seeds, reduce the empty rate and improve the fullness of seeds. Foliar spraying with urea solution can significantly increase yields. Spray 1:

3:3 solution of nitrogen, phosphorus and potassium can greatly increase the yield and increase the oil content.

Base fertilizer: mainly organic fertilizer, dig a few 2-3cm deep holes around the plant before and after planting, and apply bending fertilizer.

Seed fertilizer: 3-5 days after the seeds germinate, sprinkle on the surface of the potting soil and bury the celery surface.

Top dressing: early tremor is mainly concentrated in the period from budding to flowering of sunflowers, mainly nitrogen fertilizer, supplemented by potassium fertilizer.

Leaf fertilizer: Spray solutions such as zinc, copper and manganese after the budding stage.

You should choose some organic fertilizer, so that you can have a very good result, or you can go to the roots of the sunflower to fertilize, and then water, so that you can get a good absorption.

You can apply some base fertilizer before planting, and then you can carry out top dressing after planting, add some compound fertilizer, nitrogen fertilizer, which is very good.

Sunflower can be topdressed after flowering, at this time for the reproductive growth period, topdressing is mainly based on fertile leaf high potassium biological bacterial fertilizer drip irrigation, 2kg per mu + potassium sulfate 10kg, the first time with application, interval of 10 days;

With foliar spraying, 800 times dilution of foliar fertilizer for fertile leaf sunflower + 1200 times dilution of fertile leaf boron fertilizer + 1500 times dilution of fertile leaf calcium fertilizer, once every 10 days.

Prefer fertilizer, ditching top dressing is usually carried out in the third tillage, mainly nitrogen and phosphorus fertilizer, 5 kg of diammonium phosphate and 10 kg of urea per mu, mixed evenly and then applied to the soil. By ditching and cultivating soil, it can effectively ensure the growth and development of secondary roots, prevent lodging, and reduce the basal branching below the cotyledons.

Sunflowers bloom and can not be topdressed. The critical period of sunflower topdressing is: topdressing nitrogen and potassium fertilizer before the bud, generally chasing at 7 8 pairs of leaves, and topdressing without seed fertilizer should be appropriately advanced.

Distribute to sunflower fertilizer: 20% base fertilizer, 10% seed fertilizer (interlaced application), 50% of the first top dressing (budding stage), and 20% of the second top dressing (flowering stage). It is best not to use top dressing before grouting.

From the budding of sunflowers to the flowering stage, apply one-thousandth of potassium dihydrogen phosphate once in half a month. Depending on the growth, chase once or twice.

Yes, spraying a 1:3:3 nitrogen, phosphorus and potassium solution when sunflowers bloom can greatly increase the yield and increase the oil content.

Summary. Hello, I'm glad to answer for you, the following is the answer to your query, I hope it will help you Hello: Sunflower peanuts need to be applied with nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, and appropriate organic fertilizer for a long time.

Nitrogen fertilizer: It can promote the growth of sunflower stems, leaves, and flowers, and increase the disease resistance of plants. Phosphate fertilizer:

It can promote the root development of sunflowers, enhance the stress resistance of plants, and promote the development of flower buds of plants. Potassium fertilizer: can promote the drought resistance of sunflowers, increase the disease resistance of plants, and increase the nutrient content of plants.

Organic fertilizer: It can improve the fertility of the soil, improve the structure of the soil, increase the nutrients of the soil, and promote the growth of plants. In a word.

No matter which way you use it, you must not use too much, and you can only choose one kind of base fertilizer and top dressing.

Okay thank you. Hello, I'm glad to answer for you, the following is the answer to your query, I hope it will help you Hello: Sunflower peanuts need to be applied with nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, and appropriate organic fertilizer for a long time.

Nitrogen fertilizer: It can promote the growth of sunflower stems, leaves, and flowers, and increase the disease resistance of plants. Phosphate fertilizer:

It can promote the root development of sunflowers, enhance the stress resistance of plants, and promote the development of dead flower buds. Potassium fertilizer: It can promote the drought resistance of sunflowers, increase the disease resistance of the plant, and increase the nutrient content of the plant.

Organic fertilizer: It can improve the fertility of the soil, improve the structure of the soil, increase the nutrients of the soil, and promote the growth of plants. In a word.

No matter which way you use it, you must not use too much, and you can only choose one kind of base fertilizer and top dressing.

Trouble the teacher to tell me what kind of fertilizer to use during the growth period? Thank you.

Hello, it is best to use compound fertilizers for sunflower peanuts for a long time, including nitrogen, phosphorus, potassium, calcium, magnesium and other elements, as well as trace elements, such as zinc, copper, manganese, iron, etc. At the same time, organic fertilizers can also be added, such as manure manure, deep coal powder, straw, soybean meal, bone meal and other organic fertilizers, and a small amount of nitrogen, phosphorus and potassium fertilizers can also be added to promote the growth and development of sunflowers.

What foliar fertilizer to use in the twelve-leaf stage! What foliar fertilizer is used during the bud stage.

Hello, sunflower peanuts for a long time: nitrogen, phosphate and potassium fertilizers can be used, as well as organic fertilizers such as manure, mixed fertilizers, etc. Flower bud stage:

Nitrogen, phosphate and potassium fertilizers can be used, as well as organic fertilizers such as manure, hail mixtures, etc. At the same time, trace element fertilizers, such as zinc fertilizer, copper fertilizer, iron source fertilizer, etc., can be used to promote the development of flower buds.

1. Base fertilizer. Types: Mainly organic fertilizers, use as little chemical fertilizer as possible.

Method: Usually before planting seedlings, the fertilizer is evenly prepared and mixed in the soil or after planting, dig several holes two to three centimeters deep around the plant, and apply fertilizer to it.

2. Seed fertilizer. Types: Calcium phosphate is mainly used to add a small amount of uremia.

Directions: Three to five days after the seeds have germinated, spread fertilizer on the surface of the potting soil or apply two to three centimeters next to the seeds. In combination with sowing, apply organic and chemical fertilizers two to three centimeters below the seeds, or two to three centimeters next to the seeds.

3. Top dressing. Types: Nitrogen fertilizer is the main fertilizer, supplemented by potassium fertilizer. You can choose urea, potassium chloride and other costs or rotted human feces, plant ash, etc.

Method: Pay attention to the depth of fertilization, Chang Jian to avoid direct contact with the root system, to apply in the wet water layer, so that the fertilizer can play a fertilizer effect.

4. Foliar spraying.

Now spray zinc, copper, manganese and molybdenum solutions after imitating the buds, and spray nitrogen, phosphorus and potassium solutions after flowering.