Can edible sunflower be planted for three years, and flower sunflower can be planted every few years

Edible sunflower can be planted for three years, but this may die and need to be replanted.

Instructions for planting edible sunflowers:

1.Sowing: depending on the local climatic conditions for sowing at the appropriate time, planting under the moisture, and striving for the whole seedling, the sowing depth is about 3-5cm, not too deep, otherwise it will affect the emergence of seedlings, row spacing 83-85cm, plant spacing 33-35cm, the amount of seed per mu.

In order to save seeds, it is recommended to sow 2 grains in a hole and 1 grain in the next hole, that is, 2 - 1 - 2 - 1 form, in order to prevent lack of seedlings, a part of the seedlings can be raised in a nutrient bowl when sowing for supplemental seedlings, and the seedlings should be checked about a week after sowing, such as the lack of seedlings should be replanted or replanted in time.

2.Seedlings: When the seedlings grow to four true leaves (about 10cm high), the seedlings should be planted at the right time, maintaining one seedling per hole, and the planting density is recommended to be controlled at 2100-2400 plants.

3.Irrigation: Edible sunflower is highly drought resistant, but in order to obtain high yields, it is recommended to irrigate four times during the whole growth period under irrigation conditions: after sowing, when the diameter of the flower disc is 5-7cm, in the middle of flowering, and at the end of flowering.

4.Pollination: When 5% of sunflowers bloom, a box of bees can be placed every 5 acres of land to facilitate pollination, or artificial assisted pollination should be carried out 2-3 times during the entire flowering period

The first time is carried out 2-3 days after the flowering of the sunflower, and then every 3-4 days thereafter, artificial pollination should start in the morning when the dew disappears, the temperature is high at noon pollination is not good, and the pollination is after 3 pm. The method is to use a round pink paddle made of cotton, hold the paddle in one hand, hold the flower plate in the other hand, and pat lightly along the ridge, which can greatly improve the seed setting rate and yield.

There is a possibility that the seedlings will die, and the frequent replacement of varieties is not a big problem, mainly sclerotinia sclerotinia disease.

Summary. Hello, sunflower can be planted once every other year.

Hello, sunflower can be planted once every other year.

Sunflower is a herbaceous plant that grows for love and can only be planted once a year. Tremors are usually planted in the spring. The germination temperature of the seeds is between 18 and 25 degrees, which is not cold-tolerant, and the specific planting time depends on the local climate temperature.

It grows fast, and after sowing, it can emerge and grow quickly, and it can bloom in summer. The flowers can ripen in a month or two after blooming.

Hope mine is helpful to you.

The sunflower is planted this year, and the sunflower can only be planted every few years in the future.

Hello, you can plant every other year.

However, in order to ensure the germination rate, it is usually planted every 2 years.

Hope mine is helpful to you.

Summary. As long as you keep the new sunflower seeds in a dry place, you can still plant them. The vitality of sunflowers is very strong, and they can be planted after two or three years.

At the beginning of spring, just find a good time to plant it, and the outdoor temperature will reach a stable 20 degrees. When germinating and growing, it is necessary to maintain the supply of water, and sunflowers are afraid of lack of water. But don't pour too much at once.

Lack of water is prone to withering leaves and early flowering.

As long as you keep the new sunflower seeds in a dry place, you can still plant them. The vitality of sunflowers is very strong, and they can be planted after two or three years. At the beginning of spring, just find a good time to plant it, and the outdoor temperature will reach a stable 20 degrees.

When germinating and growing, it is necessary to maintain a water supply, and the Japanese office changes to the sunflower for fear of lack of water. But don't pour too much at once. Lack of water is prone to withering leaves and early flowering.

I'm afraid that I won't be able to plant for three years.

The following points need to be paid attention to when planting sunflowers: 1. TemperatureSunflowers are native to the tropics, but they have strong adaptability to temperature, and are temperature-loving and cold-tolerant crops. Its seeds are very resistant to low temperatures, and the local temperature is stable, and the seeds begin to germinate above 2; 4 5 times, the seed can sprout and take root; When the ground temperature reaches 8 10, it can meet the needs of seed germination. The optimal temperature for germination is 31 37 and the maximum temperature is 38 44.

Sunflower old leakage throughout the growth process, as long as the temperature is not lower than 10, it can grow normally. In the suitable temperature range, the higher the temperature, the faster the development. 2. Water Sunflower plants are tall, with many and dense leaves, and are crops that consume more water.

It absorbs twice as much water as corn. However, because its growth and development are mostly synchronized with local rain and heat, the contradiction between water supply and demand is not prominent. The water requirements of sunflowers vary greatly among different growth stages.

From sowing to budding, it is relatively drought resistant and does not require much water, only the total water requirement. Proper drought is conducive to root growth and enhances drought resistance. From budding to flowering, it is the peak water demand, which accounts for about 43% of the total water demand.

The lack of water during this period has a great impact on production. This stage of the silver sedan coincides with a lot of rainfall, which can basically meet the water needs of sunflower growth and development. If it is too dry, it needs to be replenished with irrigation.

It also requires more water from flowering to maturity, accounting for about 38% of the total water volume. If the moisture is insufficient, it will not only affect the yield, but also reduce the oil content.

I'm mainly afraid that I won't be able to plant it.

If you put the sunflower seeds in a relatively dry place, there is no problem in storing them for two or three years, you can see if the seeds are moldy, if there is mold, you can't plant.

There is no mold, it was last year, I didn't buy it, and I still want to buy it this year, I'm afraid that something will happen to the user, so I ask you.

You can plant, Ann you said.

If you are a seller, I suggest that you can tell the dry spring household before selling, and when can the seeds be sold at a lower price than this year's seeds.

Otherwise, I'm afraid that the germination rate will not be so high at that time, and users will come to ask you.

I thought you planted it yourself.

Oil sunflower and sunflower, the ability to adapt to the environment is very strong, so there are not too many requirements for the soil, but the planting of oil sunflower must pay attention to crop rotation, can not be planted repeatedly in a piece of land, so that the yield of oil sunflower is not only not high and its goose incidence is extremely high. One of the more important things in land preparation is that we need to carry out deep ploughing, so that we can remove some pests, bacteria, and weeds left in the farmland, so that we can save a lot of labor in field management after feeding. Finally, after deep ploughing, we need to sprinkle a sufficient amount of base fertilizer in Tina, mainly based on farmhouse fertilizer, an average of about 2,000 catties per mu, and then you can mix an appropriate amount of chemical fertilizer, and the base fertilizer must be applied sufficiently, because the base fertilizer is the basis for the high yield of oil sunflower.

1. Land selection and land preparation.

Choose the drip irrigation land with medium and upper fertility, and choose the drive rake when preparing the land, so as to achieve the level, soil crushing, and good moisture, avoid heavy stubble, and realize 3-5 years of crop rotation.

2. Seed treatment.

Sunflower hybrids, the seed coating agent only has fungicidal and nutrient components, no insecticidal ingredients, do not be misled by the coating agent, in order to effectively prevent needleworm, ground tiger, crickets and other underground pests, must be treated before sowing.

3. Sow seeds at the right time.

When sowing, it is necessary to avoid rainy weather to prevent compaction, and if it causes rain after sowing, it should be broken in time. Dig 2-3cm and cover 2cm. Debug the machine in advance during machine sowing, and observe whether the blanking barrel is blocked at any time, so as not to cause the phenomenon of lack of seedlings and broken ridges, and try to avoid the sowing method of dry sowing and wet sowing.

Fourth, fertilizer and water management.

The first water in the middle of the bud must be watered thoroughly to facilitate the sunflower to take root. The frequency of watering depends on soil conditions, soil moisture and precipitation. At the ripening stage, the water should be stopped in time, otherwise the grains will turn yellow.

Chase 3-4 times of fertilizer during the whole growth period, and chase urea when pouring bud water for the first time; the second water chasing urea, trim potash fertilizer; Apply urea + potassium fertilizer 5 when watering flower water, and top apply potassium fertilizer when watering slurry.