What are the temperature requirements for wheat and what are the precautions for planting methods?

Wheat is a very common food crop in the north, but it is still cultivated throughout the country. There will be some environmental factors when planting. Today I will cover the main environmental factors and the effects of temperature on wheat.

First, temperature affects wheat scion.

From seed germination to tillering stage, wheat needs certain low temperature conditions to set ears and fruits. If the temperature is kept high, the wheat individual can only stay in the tillering state, which is characteristic of the first stage of wheat development. Different types of wheat varieties require different temperature ranges and lengths of time to go through temperature-sensitive stages.

This is largely the result of long-term natural and artificial selection.

Second, the suitable temperature conditions of wheat.

In autumn, the average temperature of day and night is 12 to 18 o'clock. planting early sowing, high temperature, jointing and early tillage, susceptible to frost damage in winter; Sowing too late, the soil is dry, it is easy to lack seedlings or poor root growth, the seedling growth is weak, and the maturity period is delayed, and it is easy to suffer from late rust. When sowing wheat in the field, if the soil moisture is greater than 35%, it is easy to rot and affect the growth of seedlings.

The suitable temperature is about 10, the weather is sunny, the water and fertilizer are sufficient, which is conducive to tillering; Lack of sunlight and dry soil can affect tillering. The daily difference is about 14°C, with a slight frost, but no low temperatures of -2°C. Seedlings can be trained to improve their cold resistance.

Third, pay attention to wheat to prevent lodging.

Wheat is a tall crop and when it grows to a certain height, it is prone to lodging. Therefore, it is necessary to prevent the occurrence of lodging. You can choose lodging-resistant varieties, or prune when the wheat is not particularly high, do a good job of growth control, spray multi-effect and other agents for effective control.

More jointing fertilizer can control the formation of ear droplets, which is conducive to wheat weight gain.

Fourth, pay attention to pest control.

Disease prevention and control is an issue that all farmers need to pay attention to. Prevention must be done well in advance. Proper spraying of appropriate foliar fertilizer on leaves can not only effectively control pests and diseases, but also increase water and yield.

Strengthen field management, regular quantitative spraying and disinfection, timely treatment of diseases, and prevent further deterioration of diseases.

The temperature should be controlled at about 20, and then it should be watered and fertilized in time to ensure sufficient light, spray pesticides regularly, remove pests in time, and choose high-quality varieties in the planting process, do a good job of drainage and ventilation, and pay attention to the spacing and density of planting.

The precautions in planting are to pay attention to the control of temperature, planting skills, humidity control, control of pests, control of pests, prevention and control of diseases, and fertilization in the planting process.

When planting, we must choose the right temperature, the temperature should be controlled at about 18, and the management of water and fertilizer should be strengthened to ensure sufficient light and warm measures, otherwise it is likely to affect the yield.

The requirement for temperature is that it must be controlled at about 20, and the planting method needs to pay attention to that it should be planted in the soil, but there must be nutrients in the soil.

Wheat can only grow and develop properly if it is properly humid. Water plays a very important role in the growth of wheat. According to research, 1000 to 1200 kg of water is needed to produce 1 kg of wheat, of which 30% to 40% evaporate from the ground.

The precipitation of wheat in Henan Province during the growth period was only about 1 3 of the water requirement. Therefore, it is of great significance to irrigate wheat fields in stages and take measures to resist drought and retain water to supplement the water demand of wheat. How to grow wheat:

(1) Sufficient base fertilizer: Choosing the right local fertilizer as base fertilizer can greatly improve the utilization rate of fertilizer and ensure the prosperity of dealers.

2) Leveling the land: 1The drilling method, generally using the deep tillage method, deepens the soil, loosens the soil, reduces soil compaction, can make the crop root system deeper, and save more water in the soil.

The utilization rate of deep manure is higher. 2.Paving method, using the stubble removal device of rotary tiller or no-tillage drill bit, shallow rotation of 3-4 cm, stubble, basal fertilizer mixed with soil.

3.Hole sowing method, using machinery to dig ditches to build a city, easy to cover and sow seeds.

3) Sow seeds. Drilling, selecting high-quality seeds, generally buying seeds, using a drilling seeding machine for sowing, or manually. Wheat sprinkling: Artificial or wheat sprinkling, then the seeds are covered in time. Hole seeding, the use of film hole seeding machine to complete at one time.

4) Field management, (1) weeding, generally spraying herbicides after sowing, and spraying again during the growing season. (2) Pests are sprayed with corresponding pesticides to control pests. (3) Drought resistance, real-time irrigation. (4) Top dressing, real-time top dressing according to crop growth.

5) Harvesting: Harvesting the wheat after it is ripe. Soil, water, nutrients, temperature, light and air are the necessary environmental conditions for the growth and development of wheat.

In order to obtain high wheat yields, on the one hand, it is necessary to select excellent varieties according to local conditions, and on the other hand, it is necessary to create environmental conditions suitable for the growth and development of wheat through field management.

I hope that through my ability, I can help you better understand how to grow rice.

There are requirements, the humidity should reach about 75%, water in time during the planting process, to ensure soil fertility to choose high-quality seeds, to strengthen the fixed value, to pay attention to the density, to ensure ventilation.

It is necessary to control the air humidity of the planting, which should be 37%. When planting, we must pay attention to timely watering and fertilization, choose high-quality varieties, strengthen the management of water and fertilizer, and also need to do a good job of drainage and ventilation, spray some pesticides regularly to avoid insect pests, and also pay attention to the problem of planting resolutely and density.

The need for humidity is to keep it in relatively moist soils. The method of planting is to use drone seeding to plant.

Wheat is a low-temperature tolerant crop, the temperature required for seed germination is low, and the seeds of autumn wheat are sown too late to overwinter in the soil, and the seeds that have germinated can also survive the cold winter. Spring wheat is sown as soon as the soil thaws, germinates slowly at low temperatures, but is not tolerant to high temperatures.

The temperature conditions for wheat seed germination include the following three aspects:1The minimum temperature at which wheat seeds germinate is 1 2,5 The germination rate increases. The temperature during the germination period is too low, and the germination rate is extremely slow, which is easy to be infected with soil-borne diseases, and it is also easy to produce seed rot.

2.The most suitable germination temperature for wheat seeds is 15 20, in this temperature range, wheat seeds have the fastest germination rate, the highest germination rate, and it is not easy to produce seedlings.

3.The maximum temperature at which wheat seeds germinate is 30-35, and more than 37 and almost no germination.

The amount of water and oxygen required for germination of wheat seeds.

Wheat seed germination requires not only specific temperature conditions, but also humidity and oxygen. Generally speaking, wheat seeds only need to absorb their own weight of the general water can germinate, so there is a "wheat out of yellow moisture" this saying, if the soil layer of 3-5 cm moisture is insufficient, it is necessary to make moisture sowing, or sowing after watering, but should not be flooded with water, resulting in soil compaction, affecting the emergence of seedlings.

Wheat seeds also need sufficient oxygen for germination, and after sowing, the seeds absorb enough water and lack of oxygen, which will also produce suffocation, which is called "pulp bale" in Shangluo City, and finally has to replant wheat.

What is the best sowing temperature for wheat?

In general, wheat is sown at an average daily temperature of 16-18 and a ground temperature of 14-16 during this period. The sowing period also needs to refer to the difference between spring wheat seeds and winter wheat seeds, the wheat seeds with strong winter characteristics need more accumulated temperature before winter, and can be sown in advance, while the spring wheat seeds are sown later. The suitable sowing date, the wheat seedling emergence period is 7 days, and the emergence of wheat is less than 5 days, indicating that the sowing date is early, and the sowing date of more than 9 days is late.

The sowing date of wheat is directly related to the strong wheat seedlings before winter, and 6 7 leaves and 3 5 strong tillers before the soil freezes to reach the standard of strong seedlings. The temperature is different in autumn and winter every year, so there will be changes in the sowing date, and some of the sowing dates are suitable, but the warm winter phenomenon will also cause the wheat to grow before winter.

Wheat needs to determine the appropriate sowing date, but also need to carry out reasonable seed treatment and soil treatment, prevention and control of wheat rust, underground pests and other pests and diseases, but also need to master the amount of fertilizer and fertilizer types, according to the moisture to grasp the sowing depth. In wheat production, because wheat seeds need less water, soaking and germination treatment is rarely used, unless the sowing period is late or continuous rain causes a lack of seedlings, germination sowing will be considered. In the process of making maltose, it is necessary to control the temperature to ensure the progress of the entire process.

The optimum temperature is around 25 degrees Celsius. Select some wheat seeds with a relatively high germination rate and sprinkle them evenly in fertile nutrient soil. The gap between the seeds should not be too high, and organic fertilizers should be applied appropriately. Fertilize every half month.

The suitable temperature for sowing wheat is around 16-18 degrees. Wheat is a long-term sunshine crop, there must be enough light to be budding, to choose a good structure, fertile soil for planting, sandy land is not suitable for planting.

A temperature of 18 degrees Celsius is the most suitable for wheat growth, and it is also necessary to ensure that the wheat has sufficient moisture during the planting process.

The average daily temperature of winter wheat varieties was 16 18, 14 16 for semi-winter varieties, and 12 14 for spring. The level of warm air is affected by geographical latitude and altitude, i.e. the higher the latitude and altitude, the lower the temperature, and the sowing date can be earlier.

The occurrence of wheat heading is closely related to the leaf age of the main stem, and the leaf age of the main stem is closely related to the temperature. Therefore, the temperature at the time of sowing determines the number of ears of wheat before winter, which is actually a group. In the northern winter wheat area, the group is the key and basis for determining the yield of wheat, and farmers have a saying that they are rich enough to buy seeds but not rich to buy seedlings, which means that the important role of the group is to be said.

In the wheat area of Huanghuai area, the number of ears per mu and the number of grains per ear and the emergence rate are relatively harmonious, but the group is still the basis and guarantee for increasing yield. One of the wheat populations is the sowing amount, and the second is the sowing date, and the sowing date and the sowing amount are closely related.

Winter wheat is sown not only at the right time, but also at the right temperature, which can be interdependent. For example, the suitable temperature for winter wheat sowing is generally around 16 18 degrees, and the time for winter wheat sowing here is generally around the winter solstice. In other words, when you sow winter wheat, you should also pay attention to the temperature while looking at the time, so as to determine whether the balance should be sown.

Wheat sowing germination is not only related to temperature, but also harms the quality of tillage and the depth of sowing, which is <>

When sowing, it is necessary to pay attention to carry out meticulous ploughing, and the comprehensive utilization of straw should be carried out in the soil layer subsoiling and straw burial technicality, otherwise it will endanger the germination and growth and development, in addition, it is necessary to pay attention to the sowing of sufficient moisture, and the seedlings must be watered after sowing to facilitate germination and germination, and at the same time, there is a fusion of pesticides or film coating to solve the problem of soil disease or underground pest damage to germination. In the end, pay attention not to sow too much, the general amount of sowing per mu is about 15-20 catties, the actual basis of the sowing date to master, at the same time advocate machine hole sowing, sowing depth to 3-5cm is the most suitable. It is generally in autumn, around September of the lunar calendar, <>

Wheat is also one of the common food crops. Wheat planting After the rainy day, the autumn season is the autumn planting, and the temperature is generally between 23 and 30 degrees. Choose the wheat with full grains as the seeds, pull the ground to the traffic, each row of planted wheat is selected to plant one by one, the seeds are evenly sprinkled to the industry, the blank row in the middle is sprinkled with organic fertilizer, and then filled with a layer of soil, and the row can not be too thick.

Winter wheat sowing time and temperature have an inseparable relationship, sowing too early, high temperature, fast budding, easy to grow before winter, not only consume nutrients, but also will be affected by cold. Sowing too late, low temperature, less accumulated temperature before winter, small seedlings, weak seedlings, few tillering seedlings, not good for winter.

About 20 degrees is more suitable. It is necessary to control the planting density, and also supplement organic fertilizer in time, and you can use farmhouse fertilizer.

The latitude of wheat cracking is suitable for growth at 25 degrees above 28 degrees, the soil layer should be thick and have good air permeability when planting, it is best to use humus soil for seed dressing, and after germination, it is necessary to apply farm fertilizer and nitrogen fertilizer.

Around 15 degrees, at this time planting wheat is more radical and good, you can better germinate for growth, you need to pay attention to the soil, and remove weeds on time.

Generally, it is planted by hand or by machine, and when planting, it is also necessary to pay attention to the distance and depth between each other, and also pay attention to fertilizing and watering these wheat.