-
In this case, it is easier to control if it is planted in a greenhouse, and now, new ways to promote the growth of crops are:
1. Color light method: the use of specific wavelength of light to irradiate crops can significantly promote the growth of crops and change the nutritional composition of crops. In Russia, red light is used to regularly irradiate tomatoes and cucumbers, shortening their ripening period by 30-45 days and increasing their yields by more than 2 times.
2. **Law: Russia regularly schedules a certain frequency of vegetables in greenhouses every day, and its output has increased by more than 1 times; Experiments have proved that the classical, generally medium volume is more in line with the "taste" of crops.
3. Electric field method: All living things grow in the huge electromagnetic field on the earth's surface, according to this principle, American botanists have obtained gratifying results by creating artificial electric fields. The method is to install a barbed wire mesh above the crop growth as a positive electrode, forming a high-intensity electric field with the negative electrode of the land.
Growing crops such as cabbage, cucumbers, tomatoes, etc., in this electric field, the growth cycle was shortened by half, and the yield increased by 3-6 times.
-
The environmental conditions that affect the growth and development of crops mainly include: water, light, soil, nutrients, temperature, air, etc., only under suitable environmental conditions, agricultural products can grow and develop normally and achieve high quality and high yield. Refers to a variety of plants cultivated in agriculture.
A type of living thing. It includes two categories: grain crops and cash crops (oil crops, vegetable crops, flowers, grasses, and trees). Edible crops are one of the basic foods for humans.
People take food as the sky", which expresses the relationship between people and food, and a reasonable diet can bring health to human beings. Self-sufficiency in food is the foundation of a country's sustainable development, and the growth of crops is inseparable from scientific and technological production technology, as well as machinery and equipment manufactured by new industries that can assist agricultural production. Huilin Youpin organic fertilizer function:
1. Improve the absorption of nutrients by crops and save the use of fertilizers;
2. Improve the yield and quality of crops, shorten the cultivation cycle;
3. Improve the survival rate of crops, drought resistance, bacteriostatic and insecticidal;
4. Improve the soil, improve the fertility of the land, and explain other harmful substances.
-
This year is everywhere, crops are the same as people, fertilizer is not up to you, but what it needs is whether you keep up! On the other hand, the abnormal climate will also affect the absorption of fertilizers by crops, I suggest you use the Luhong 111 series products produced by Shanghai Luhong Agricultural Science and Technology. You can go to the Internet to find ** Seven in the 09-5-25 Science and Technology Park "Wake Up the Sleeping Gene", which allows you to understand the principle of Luhong 111 products!
-
Is the temperature keeping up? Is mulch film laid down? What do you plant? Is the right type of fertilization?
-
1 Full sunshine.
2 Stay hydrated.
3 Adequate nutrition.
4 Suitable temperature.
Different plants require different levels of sunlight, water, and nutrients.
What do you grow?
-
As follows:
1. Choose excellent varieties suitable for local growth.
2. Reasonable watering and fertilization.
3. Scientific management. Timely weeding and insect control.
4. Consult local agricultural science and technology personnel in time when encountering problems.
The goal of increasing crop yields is to increase aggregate yields and increase yields.
1. Increase in total yield: under the condition of constant yield, it is achieved by expanding the planting area or increasing multiple cropping; This can only be achieved by increasing the yield per unit area of crops under the same acreage. This is also what we commonly refer to as increasing crop yields.
2. Improve yield: There are ways to improve the photosynthetic efficiency of crops and increase the accumulation of photosynthetic products, such as selecting crop varieties with high light efficiency, carrying out reasonable fertilizer and water management, etc.; b. Improve the economic coefficient of crop products, increase the bioyield of effective products, and reduce the biomass of non-effective products; c. Reduce the damage of pests to crops in order to reduce the loss of crop products.
-
The knowledge of the growth of crops is as follows:
1. What is the three-basis point temperature?
1) The three-basis point temperature of crop growth generally refers to the optimum, minimum and maximum temperature of crop growth.
2) At the highest and lowest temperatures, crops generally stop growing and developing.
3) Crops grow fastest at the most suitable temperature.
4) At the highest and lowest temperatures, if the temperature rises or decreases, it will generally cause harm to crops and even lead to death.
2. The three-cardinal point temperature of various crop growth.
1) Taking the three-basis point temperature of rice, wheat, corn and rape as an example, the minimum temperature of rice is 10-12, the optimal temperature is 30-32, and the maximum temperature is 36-38.
2) The minimum temperature of wheat is 20-22 and the maximum temperature is 30-32.
3) The minimum temperature of corn is 8-10, the optimal temperature is 30-32, and the maximum temperature is 40-44.
4) The minimum temperature of rape is 4-5, the optimal temperature is 20-25, and the maximum temperature is 30-32.
Favorable conditions for the growth of crops:
1. Sufficient light.
1) When there are not many things growing, they usually can't leave the light, and when the light is suitable, the crops can better photosynthesize, and when the light is not enough, the crops grow poorly and usually can't grow well.
2) Crops are divided into long-day crops and short-day crops, so when providing light for crops, it is necessary to provide suitable light conditions according to their habits.
2. Sufficient moisture.
1) Water is the source of life, crops generally cannot leave water when growing, if the water is sufficient, it can grow better, otherwise it is easy to die.
2) However, too much water should not be used, because too much water can easily cause various diseases, which is not conducive to the growth of crops.
3. Sufficient nutrients.
1) When crops grow, they generally need a variety of fertilizers to provide them with nutrients needed for growth, and usually fertilizers are divided into base fertilizer and top dressing, and reasonable fertilization for crops is generally conducive to its growth.
2) The sensitivity of each crop to fertilizer is different, for example, grapes, potatoes, sweet potatoes and other crops are chlorine-resistant crops, and chlorine will usually cause bad effects after applying chlorine to them, so when fertilizing crops, it is also necessary to make a reasonable decision according to its fertilizer characteristics.
-
1.Illuminating. Everything on the earth is inseparable from sunlight, and sunlight is the source of all life activities, so the basic condition for the growth of crops is to have sunlight first.
In general, the intensity of light on Earth has a great impact on the growth of many crops. Some crops prefer long days, some prefer short days, and some prefer scattered sunlight, which is also one of the necessary conditions for crop growth.
2.Land. When we grow crops, the first thing that comes to mind is the soil of the substrate.
Only fertile soil allows crops to grow, so soil is the key, and the pH of the soil is determined by the growth habits of crops. Different crops have different demands on arable land.
3.Moisture content. Water is the source of nourishment for all things on earth, and all life activities are inseparable from water. Without water, the life of crops will also stop. Although some crops do not require much water, they also need to provide water, which is also one of the conditions for the survival of crops.
4.Nutriment.
The nutrients required by crops usually refer to the fertilizers that are applied in life. If crops want to grow more lush, they can't do without nutrients. Reasonable nutrients can provide the nutrients needed by plants, so as to ensure the normal growth and development of crops, and grow better.
5.Air. Carbon dioxide and oxygen in the air are prerequisites for the survival of crops.
If the air quality is not good, crops will not grow well or even wilt and die. Only with the right air, plants can carry out normal photosynthesis, thus ensuring better growth of plants.
6.Temperature. For the growth of crops, temperature is also very important, and different crops need different temperatures.
Some prefer to grow in warm conditions, some prefer to grow in cold climates, and some prefer to grow in high temperatures. If the temperature of the environment is higher than the limit temperature of the crop, life can end, or even die. Only proper temperature control can be beneficial to the growth of crops.
-
1.What role does green manure play in the growth of crops.
2.Is rising temperatures good for crop growth?
What role does green manure play in the growth of crops.
Green manure can be widely used for crop planting and fertilization, and green manure is rich in a large number of nutrients, which can effectively increase nutrients in the soil, collect lost nutrients, and maintain water and soil.
Therefore, the use of green manure crops will increase production and income, and the effect is extremely significant.
Green manure is embodied in the following aspects in the process of crop growth: 1. Collect lost nutrients.
Green manure can collect the fertilizer lost from farmland and transfer it to the nutrient cycle of farmland to improve nutrient utilization efficiency.
2. Increase soil nutrients, fertilize and improve soil.
Green manure fresh grass contains 10%-15% organic matter and nitrogen content, calculated as 1000 kg of fresh grass, which can provide 120-195 kg of organic matter and 4-7 kg of pure nitrogen.
This has a certain effect on increasing soil nutrients and fertilizing and improving the soil.
3. It can provide a large number of high-quality organic fertilizers to promote crop yield.
Green manure can be widely planted, rich in nutrients, high yield of fresh grass, and the yield increase effect is remarkable.
4. Maintain water and soil, release wind and fix sand.
Green manure is used as a grinding material with lush stems and leaves, covering the field surface, which can reduce the loss of water, soil and fertilizer, and inhibit the growth of weeds in the field.
Green manure is planted on slopes, sandy lands and mountainous areas, which can reduce rainwater from brushing, pray for sand fixation, soil protection, slope protection, and soil erosion.
5. Green manure is still a good feed.
Green manure crops are generally rich in protein, fat, sugar and vitamins and have soft stems and leaves, which can be used as green fodder for silage, and can also be made into dry fodder for livestock and poultry.
In addition, some green manures, such as milk vetch, are excellent sources of honey and can also promote the development of beekeeping.
Is rising temperatures good for crop growth?
Since the skills of the two heroes have their own merits, there are different theories about which hero is more powerful. Here's a look at the two types of heroes:
1.Sun Shangxiang: Strong displacement ability, belonging to the early and late shooters.
Weaker in the medium term. Sun Shangxiang has high mobility and high bursts, and his basic attack after the rollover of a skill can hit an enemy in a straight line, and the general judgment Sakura fighting attack will reduce a skill CD. However, Sun Shangxiang's survivability is weak, and the requirements for the user's methods are higher.
2.Huang Zhong: The hero in the Honor of Kings game Huang Zhong has super output and damage, and is a long-range shooter hero, but has low movement ability, and is a team-controlled shooter.
Huang Zhong's 1 skill is used to escape and chase enemies, and can quickly cancel the parry state. Huang Zhong's 2 skill can be used to detect the grass vision. When Huang Zhong's parry is lifted, the damage and attack range increase over time, so you need to choose a stable cannon position.
This is more, the growth of different crops needs different fertilizers, and the same crop also needs different fertilizers at different growth stages. Therefore, it is necessary to first clarify what the crop is and what nutrients are needed. And also to go according to the condition of the soil. >>>More
The most important cause of fertilizer damage to crops is also caused by unscientific fertilization. In the case of fertilization, we should control chemical fertilizers and carry out effective and reasonable fertilization according to the regularity of fertilizer demand of different crops and the fertilizer supply characteristics of the soil layer. Before fertilization, we should first accurately measure the soil layer and adjust the concentration value of various fertilizers. >>>More
There will be an impact, but due to the current heavy use of chemical fertilizers and pesticides, the number of earthworms in the crop plots is already limited, and the short-term effects are not easy to detect. Earthworms belong to the phylum Oligochaetae, which is one of the animal groups with large biomass in the soil, and plays an irreplaceable role in maintaining the function of soil ecosystem. >>>More
1. Fear of unrotted "raw manure". The by-products caused by this kind of alcohol will cause taro leaves to turn yellow, grow slowly, if the amount of livestock and poultry manure that is not sufficiently rotted is large, and even cause taro to grow and develop in this field, the economic benefits of planting taro, I don't say that everyone can guess, it is very bad. >>>More
The diurnal range of temperature and light has an important impact on the yield and quality of crops. High temperatures and strong sunlight during the day favor the photosynthesis of crops. >>>More