Kind of good lettuce to grasp the five key

Autumn Lettuce planting and sowing period is in the hot season, the temperature difference between day and night is small, the night temperature is high, and the respiration is strong and easy to grow. At the same time, due to the high temperature and long days, the lettuce can be quickly differentiated and convulsions due to the rapid growth of lettuce, so the cultivation of strong seedlings and the prevention of immature convulsions It is the key to the success or failure of autumn lettuce cultivation.
1. Choose a variety that is not easily heat-resistant. Asparagus officinalis is often exposed to high temperature and long daylight conditions conducive to convulsions. Therefore, it is necessary to select late-maturing varieties that are unresponsive to high temperature and long days, such as purple leather, willow lettuce and Wannianchun.
2. timely late broadcast. Early summer sowing, high temperature and long duration of sunshine, the rate of reproductive growth exceeds the rate of vegetative growth, the stem will not grow too long to elongate. It takes three months from sowing to harvesting for the autumn lettuce, and the suitable temperature for the growth of stems and leaves is about 60 days after the ten-day average temperature drops to 21°C. Therefore, the average temperature in the seedlings should be reduced to 21-22°C in the ten-day period. The previous month was safer. Although the sowing date is too late, it is not easy to convulsive, but due to the short growing period, the yield is reduced. North China is generally suitable for planting from late July to early August.
3. Cultivate strong seedlings. Summer seeding due to high temperature seed germination difficulties, sowing must be low temperature soaking germination, soaking in cold water after a day and night soaked in 15-20 °C temperature, 3-4 days after budding, in the afternoon when the temperature is low seeding. After sowing, it is covered with wheat straw, rice straw and other shades in order to achieve the purpose of moisturizing, cooling and preventing rain. It can also be mixed with Chinese cabbage. The emergence of Chinese cabbage can quickly replace the lettuce, and it can be gradually removed from the Chinese cabbage after the lettuce leaves.
There are wet sowing and dry sowing methods. When the wet seeding method is used, when the seedlings are topped with soil, they are sprinkled with water once, and they will be released after 1-2 days. Dry-sowing must be used to keep the soil moist and reduce ground temperature. Note that water must be sprayed in the morning and evening.
Gradually withdraw the cover after the emergence, to strengthen the exercise of the seedlings, after the first pouring water to reduce seedbed temperature to prevent seedlings from sunburn, and later still have to pour water to keep the soil moist, timely pouring water after the rain to reduce the temperature to prevent seedlings. Timely weeding and insect-proof seedlings, 3-4 pieces of true leaves are applied with water once a quick nitrogen fertilizer.
4. Colonization and field management. Seedling age 25-30 days, there are 4-5 true leaves when planting, it is best in the afternoon with soil colonization, in order to ease the seedlings.
Before field planting in Daejeon, base fertilizer must be applied. In order to prevent the growth of autumn lettuce, it is necessary to meet the requirement of water and fertilizer as far as possible so that the leaf area can be expanded rapidly. After the planting, the soil was poured and poured gently until the seedlings were reduced. After the seedlings were grown slowly, a quick-acting nitrogen fertilizer was applied. Thereafter, watering was appropriately reduced and a deep cultivator was used to extend the root system. The second round of topdressing was performed during the planting period to accelerate the occurrence of leaves and the expansion of leaf area. Immediately before the ridge closure, the stems begin to expand for the third time. In addition to the application of available nitrogen fertilizers, potassium fertilizers are added to promote stem hypertrophy.
5. Use plant growth regulators to inhibit premature twitches. When the beginning of the stem of the asparagus lettuce ridges began to hypertrophy with 500-1000ppm of MH or 6000-10000ppm CCC foliar spray 2-3 times, can effectively inhibit twitching, increase stem weight.

What is the pet scanner?

[Pet Scanner] involves high-tech innovation projects of medicine, bio-informatics, electrical engineering and other sciences. Using the quantum medicine as the theoretical basis, it applies the advanced electronic equipment to collect the weak magnetic field of animal cells for scientific analysis, thereby analyzing and determining the tested animal's health status and main problems and

putting forward standard prevention recommendations. [Pet scanner] is individualized guide of Health Care consultation for full animal body and forward health science, and has the advantages of completeness, non-invasiveness, practicality, simplicity, fastness, economy, easy popularization, etc. With the depth and development of scientific research, it will make a greater contribution for the cause of animal health, having a broad development and application prospect.


Principle of Quantum Analyzer:


The animal body is the aggregates of a large number of cells which are in continuous growth, development, differentiation, regeneration and apoptosis, and the cells constantly self-renew through its own division. In the process of cell division and growth, those charged bodies of atomic nucleuses constituting atoms as the basic unit of cell and the electrons outside the nucleus are in constant high-speed movement and changing, thereby constantly emitting electromagnetic waves.


The electromagnetic wave signals emitted by the animal body represent the specific state of the animal body, and the emitted electromagnetic wave signals are different under the different conditions of the human body, such as health, sub-health, disease, etc. If we can determine these specific electromagnetic wave signals, we can determine the status of the body's life.


Quantum medicine considers that the most fundamental reason of falling sick is that the spin of electrons outside the atomic nucleus and the orbit change, thereby causing the change of atoms constituting a material, the change of small biomolecules, the change of big biomolecules, the change of all the cells and finally the change of organs. Because the electron is a charged body,


when the spin of electrons outside the atomic nucleus and the orbit change, the electromagnetic wave emitted by the atoms will change. The energy o f the electromagnetic wave changes caused by the changes of the animal body's diseases and physical changes in the nutritional status is extremely weak and usually is only nano gauss to microgauss. The frequency and energy of the


weak magnetic field of hair determined directly or by holding a sensor compare with the resonance spectra of standard quantum of diseases and nutrition indicators set in the instrument after the frequency and energy are amplified by the instrument and processed by the computer, and then the corresponding quantum value being from negative to positive is output. The size of the


quantum value indicates the nature and extent of the disease and the nutrition levels. Finally, the test results are resolved by clinicians. It's similar to the principle of listening to broadcasting from the radio. There are many radio waves in the air. If you want to listen to some designated broadcasting, you can transfer the radio to the corresponding frequency, at this moment, resonance occurs, so that you can listen to this broadcasting. Quantum resonance uses this principle for testing.


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Pet Quantum Analyzer

Animal Quantum Analyzer, Dog Quantum, Cat Quantum

Shenzhen Guangyang Zhongkang Technology Co., Ltd ,

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