The planting area of sunflowers is expanding, how to grow sunflowers to achieve high yields?

When selecting seeds, we must choose good quality, and then choose soft and fertile land when planting, and regularly fertilize and water after planting, and the sunshine time must be sufficient, so that the production capacity of sunflowers will be better, and it will be more convenient to plant large areas of sunflowers by means of science and technology.

It is necessary to understand the density of planting, pay attention to the area of planting, do a good job in all aspects of management, and also pay attention to the planting technology.

I think it's the right place. Sunflowers love the sun, so plant them in sunny places.

Sunflower not only has high edible value, but also is a very important oil wheel positive object, and its flower language is also very meaningful. Sunflowers represent "silent love, loyalty" and are also highly ornamental. The sunflower fields are refreshing.

But most of them are grown to make money, and if you want to improve your economic efficiency, you must increase the yield of sunflowers. So how do you grow sunflowers to be productive? Let's take a look with Bian Xiao.

1.Sunflowers are not strict on the soil, but they are highly adaptable and can quickly adapt to the pH, moisture and fertility of the soil. However, it is not suitable for planting on land that is prone to waterlogging and difficult to drain water.

And the fertile soil can make the sunflower grow better, which is conducive to increasing the yield of sunflower and increasing the oil content of sunflower. Therefore, when we choose land, we should try to choose land with deep and soft soil, fertility and strong water retention. 2.

Choose to use excellent varieties for sowing, such as Hungary No. 4, which has good disease resistance and lodging resistance.

However, the sowing time should be determined according to different varieties, soil fertility and other factors. For example, the sowing time of Hungary 4 should be appropriately postponed. Because this can effectively increase the yield, reduce the phenomenon of empty grains, reduce the occurrence of pests and diseases, and provide a good growth environment for sunflowers.

3.When weeding sunflower seedlings emerge about three weeks later, field management should be carried out in time and the seedling thinning work should be done. However, as the seedlings grow, weeds will also start to grow, so it is important to remove weeds in time to prevent them from growing too much.

Because too many weeds will rob the seedlings of nutrients and affect the growth of the seedlings. Proper weeding can also promote root growth and enhance nutrient absorption, and being careful not to damage the roots when weeding is the opposite effect. 4.

Different sunflower varieties have different ways of growing, but all have branching characteristics. Sunflower shoots have a strong ability to grow. Although the branches can grow flower discs, they compete with the flower discs on the main branch for nutrients, resulting in malnutrition of the flower discs on the main branches.

The phenomenon of empty particles increases. Therefore, when we are in the flowering period, we need to destroy all the excess branches, and we only need to leave the flower disc on the main branch immediately to ensure the nutrient absorption and growth of the flower disc on the main branch. 5.

Pollination sunflower flowers are divided into male and female flowers, and are usually pollinated by insects such as bees, but this pollination method will have a high probability of failure, increasing the probability of empty shells. Therefore, we should do artificial pollination or reproduce the right amount of bees for pollination. When the sunflowers bloom, the adjacent disks rub against each other, and pollination can be carried out about 3 times.

The pollination time should be selected as early as possible to improve the pollination effect and reduce empty grains. The above is a high-yield sunflower planting technique. In order to obtain high-yielding sunflowers, it is necessary to strengthen management.

What needs to be done in the planting process is definitely not only the aspects mentioned by Bian Xiao, but also more places need to be carefully observed, many small details are ignored by us, and often do not reach the ideal fiber production base.

Sunflowers should be weeded frequently, and the temperature of the sunflowers should also be raised, and some cow manure, pig manure, etc. should also be used, so that the sunflowers will absorb enough nutrients, and can also get a high yield.

Be sure to choose a particularly good piece of land, and it must be fertile soil, the soil must be breathable, and then water more and fertilize more.

Fertilize the sunflowers often so that the sunflowers will grow taller and grow better.

Because Mori Zhiqing is a backlit distribution of sunflower auxin, the concentration of auxin on the side facing the sun is low, and the concentration of auxin on the side facing the light is relatively high, so the backlit side grows faster, and the light-oriented side grows slower, so that the stem produces a backlight curve, so that it faces the sun. Selecting varieties with strong adaptability and stress resistance, determining the suitable sowing date and density can effectively improve the yield of sunflower, followed by reasonable fertilization, and timely control of pests and diseases is also conducive to improving yield.

Because the sunflower will be affected by the light, and then its rhizome will secrete auxin, which will move with the light; Sunflowers are usually planted in March and April in the spring, and it is necessary to choose high-quality sunflower seeds, and the land should be flat and soft, and then fertile.

It is because the sunflower has a light-sensing cell, and the cells of this slag will be sensitive to the sun, and the sunflower will grow towards the sun. Choose a place with relatively low terrain to plant sunflowers.

It's because they have to photosynthesize. This is the only way to grow. And the magnetic field in their body is the same as the magnetic field of the sun. I think it should be placed in a place where Taitan Jinyang is stronger.

Traditional varieties of sunflowers are not suitable for spring sowing, traditional varieties such as spring sowing, growth is very good, flowering is very good, but sunflower seeds are deflated seeds, empty seeds have no kernels. Traditional sunflower varieties are sown in June, and the sunflower seeds are seeded, and the best sowing is after June 20. Sunflower seeds are sown at the beginning of autumn on August 8, and can be harvested before the beginning of winter.

Sunflower can not be stubble or stubble, you can choose to implement about 3 years of rotation with gramineous crops, after the harvest of the previous crop, spray on the soil surface with 250 grams of methyl isosulfonate mixed with water 30 kg, and then carry out autumn ploughing, which can receive a better effect of insecticide and weeding. Since sunflower is a deep-rooted crop, it is necessary to carry out deep ploughing when preparing the land, and the depth of the cultivated land should reach 25 to 30 cm, and water enough water to protect moisture after deep ploughing.

About 2 days before sowing, choose sunny and windless weather and expose the seeds to the sun, which can effectively kill the germs carried by the seeds themselves and improve the activity of the seeds. Then spray the seeds with 40% methyl isosulfonate solution, and then sown for about 6 hours, and then sow the seeds after they are seventy percent dry in the shade. The sowing density should be considered according to soil fertility, local climate and environment, target yield, etc., and the soil fertility is good, and the short-stem varieties can be planted appropriately densely, otherwise it should be sparsely planted.

Generally, the row spacing of oil sunflower is about 35 60 cm, and the row spacing of edible sunflower is about 70 80 cm. The sowing methods include plastic film ridge cropping and plastic film flat cropping, etc., and the plastic film mulching can reduce the saline-alkali damage and moisture preservation at the same time, and can also improve the seedling emergence rate and the uniformity of the seedling.

When the back of the flower disc has turned yellow, the stem of the plant has turned yellow, most of the leaves have withered yellow and fallen off, the supporting leaves have turned brown, the tongue-shaped flowers have fallen off, and the seeds have hardened and presented the color of this variety, it should be harvested in time. It can also be harvested about 36 days after the flowering period of sunflowers, when the plasticity has not increased and the moisture content of the seeds has dropped to less than 30%.

When the back of the flower disc has turned yellow, the stalk of the plant has turned yellow, most of the leaves have withered and fallen off, the supporting leaves have turned brown, the tongue-like flowers have fallen off, and the seeds have hardened and shown the color of this variety, it should be harvested in time. It can also be harvested about 36 days after the flowering period of sunflowers, when the plasticity has not increased and the moisture content of the seeds has dropped to less than 30%.

Usually bud emerges about 5-7 days after sowing. The basic principle of sowing date selection is to sow early or late according to the law of saline-alkali occurrence, so that the seedlings can avoid the damage of saline-alkali. Spring sowing or summer sowing is carried out according to the growth period of the variety.

The method of planting sunflowers is particularly simple, you need to choose high-quality seeds, and then sow them in the round soil of the brigade key for regular watering and fertilization, and there is a corresponding prevention of some pests and diseases.

Cultivating sunflowers is similar to cultivating corn, and one should be planted at intervals of 30 to 50 cm, so that the distance between each flower should be separated so that there will be a good harvest.

First of all, you should choose to plant in March, and secondly, you should find an open space that is not blocked by the sun, and then dig a pit to plant and water it.

Acidic or alkaline soil, and to ensure that the soil is fertile, so that the sunflower rotation is conducive to improving its yield, but when planting, it is necessary to level the plot first, and then apply sufficient organic fertilizer, and the seeds are placed in the sun for exposure, which can improve the seedling emergence rate, timely lack of seedlings to replenish seedlings, and retain strong seedlings.

Plant sunflowers in a warm place, let them bask in the sun often, water fertilizer and water frequently, and pay attention to insecticide, so that the sunflower yield can be higher.

Large-scale planting sunflowers should choose a wide and flat land, sowing in the spring 3 4 months is the best, with a new high fat film dressing to improve the seed germination rate, seed spacing about 20cm, a hole to sow 1 2 seeds, 10kg of compound fertilizer per mu as base fertilizer, a week to germinate, after germination to pay attention to seedlings and weeding.

Sunflower sowing in the spring 3 4 months is the best sowing, about how to plant sunflowers in a large area, the planting land should choose a wide and flat land, convenient irrigation, the soil quality is the best sandy loam, the soil is deep ploughing and layering, the depth is about 30cm, 10kg of compound fertilizer per mu is applied as base fertilizer, and other crops should not be planted before planting sunflowers.

First of all, the sunflower seeds are damaged and shriveled to pick out, the seeds are selected as edible varieties, the flower plate is large, the yield is high, the seeds should be dressed with a new high-fat film, for disinfection, and then the seeds are soaked in 30 warm water for 24 hours to promote germination, which can reduce the disease of sunflower and improve the germination rate of sunflower.

Planting sunflower density is large, the flower disc is small, the density is small, the flower disc is large, generally 3000 plants per mu is the most suitable, the seed spacing is about 20cm, the average seeding hole is 1 2 seeds in the middle age, the seed depth is between 3 5cm, it can germinate in a week, in order to ensure the yield, it is necessary to observe in time after germination, the lack of seedlings should be filled, and the two plants can be transplanted if they are alive, and the seedlings that survive too much also need to be pulled out.

Generally, after the seedlings survive, they need to be weeded regularly, they can be weeded anytime and anywhere, they can also be weeded regularly, and the whole growth period can be weeded regularly and 3 times, the first time for the seedlings to grow two pairs of leaves, the second time in the seedling, the third time in the seedling 15 days after the seedling, weeding can also be combined with the cultivator shallow tillage to loosen the soil.

The first top dressing is applied after the third weeding, 5kg of phosphorus fertilizer per mu, 10kg of nitrogen fertilizer, top dressing once a month later, the amount of phosphate fertilizer gradually increases, nitrogen sells and slowly decreases, the first irrigation is in the flower bud when it grows, the second irrigation is in the flowering period, and the third irrigation is in the flower disc when it is about to mature.