At present, due to the backwardness of chemical fertilization technology in corn cultivation, the yield of maize has stagnated. Therefore, increasing fertilization and scientific fertilization will be an important way to increase maize yield in the coming period. In recent years, some farmers have conducted soil testing and formulating scientific fertilization, which has achieved significant benefits and has been welcomed by farmers' friends. Now summarized as follows, it is recommended to do a good job in corn science fertilization should focus on four links.
First, the principle. In fertilization, we should master the application of nitrogen, phosphorus, potassium and trace elements in combination with balanced fertilization, deep application of fertilizers, top-dressing, combined water and fertilizer, and improve fertilizer efficiency. The amount of fertilizer should be comprehensively considered according to the factors such as the law of sucking fertilizer, yield level, soil fertility, fertilizer nutrient content and utilization.
Second, base fertilizer. The fertilizer used before sowing was called base fertilizer. Generally, the organic fertilizer, compound fertilizer or part of nitrogen fertilizer, potassium fertilizer, and micro-fertilizer are mixed and concentrated. If it is too late to apply fertilizer can be applied once.
Third, seed fertilizer. When sowing, the fertilizer applied next to the seed or along with the seed is a seed fertilizer. It can meet the needs of nutrients at the early stage of corn growth and has the effect of promoting the development of roots and the growth of seedlings. General use of ammonium phosphate or compound fertilizer per acre, urea 3 kg, should do column fertilizer, fertilizer isolation, to prevent injury.
Fourth, top dressing. The fertilizer applied during the growth period of maize is top dressing. The top-dressing period, frequency and quantity should be based on the law of fat absorption by maize, yield level, geographical basis and peak demand. If there is insufficient supply of nutrients at this time, there will be a drop in fruit. Malnutrition can also affect the normal development of flower organs and fruits. If pollen is small and the style is uneven, it cannot be normally pollinated and fall off.
Second, to prevent tomato drop and fruit falling measures. To prevent tomatoes from falling and fruiting, we must do the following work on a targeted basis on the basis of timely sowing, cultivation of strong seedlings, rational close planting, scientific fertilization, and strengthening the plant's resistance to stress. (1) To improve the amount of fertilization in the temperature and humidity of tomato fruit and fruit, etc.
1, dressing period and role. (1), Miao Fei: Generally after Dingmiao and jointing before the jointing, can be combined with the drawing fertilizer and jointing fertilizer for one application. It has the functions of promoting roots, strengthening seedlings, promoting leaves, and strengthening stalks, laying a solid foundation for many species and species. (2) Seed Fertilizer: It is a key period for determining the size of seeds and the number of seeds in the big bell-mouth period of corn. It can promote large seeds and many grains. (3) Granular fertilizer: It is generally applied at the flowering stage of the pumping male. It can ensure the full supply of inorganic nutrients, prolong the functional period of green leaves, increase the accumulation of light and products, and promote multi-grain and grain-weight to obtain high yield.
2, classified topdressing. (1) High-yielding fields: The foundation of the soil is good, and the number of top dressings is large. It is best to use the three attack and top-dressing method of lightly catching the seedling fertilizer, replanting the seed fertilizer, and supplementing the recovery of the grain fertilizer. The amount of topdressing fertilizer in the seedlings accounted for about 30% of the total fertilizer, 50% for the seed fertilizer, and 20% for the pellet fertilizer. (2) In middle-aged fields: better soil fertility and more topdressing, it is better to use full-fledged seedling fertilizer and double-seeding fertilizer for reseeding seed fertilizer. Miaofei accounts for about 40% of the total fertilizer, and seed fertilizer accounts for about 60%. (3), low yield: poor fertility, top dressing can be used to regain Miao Fei, light recovery fertilizer method, Miaofei accounted for about 60%, about 40% of seed fertilizer.
3, top dressing method. The topdressing depth is generally about 10 cm. The top dressing is 10-12 cm away from the corn plant and the seed fertilizer and granular fertilizer are 15-20 cm away from the plant. Only in this way can the fertilizer effect be fully utilized and the utilization of fertilizers increased.
Electric Hydraulic Operating Table
1. Import hydraulic system
2. Memory sponge mattress
3. Electric Longitudinal displacement ≥350mm
4. Tabletop is X-ray available
5. Optional Carbon fiber bed panel
The Hydraulic system adopts imported integrated type components, imported motor and solenoid valve, stable performance.
The Operating Table uses wired mini touch controller.
Pillar base cover all 304 stainless steel, anticorrosion, easy to clean and durable.
Taiwan stainless steel structure, easy to use, safe and stable.
Accessories are removable.
The Multi function medical operating table is suitable for comprehensive surgical operations like thoracic surgery, abdominal surgery, brain
surgery, eye surgery, ENT, gynaecology and obstetrics, urology surgery, orthopedics surgery and other general purpose.
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The brief medical operating table without accessories installed on
The whole set Surgical Operation Table with all related Accessories intalled on
Certificates:
Certificates of CE, ISO9001, ISO13485 and CFDA are approved
Company:
Shangdong province is the main machinery production base in China.
KANGERJIAN Medical Technology Co., Ltd. is a group of senior lighting design expert and machinery manufacturing expert company with 20years experience and factory locating in the east city--the hometown of confucius--Qufu in Shandong province, China.
The Company has passed the ISO:9001:2008 quality system certification, ISO13485:2003 quality system certification, CE certification and CFDA certification, so that the enterprise management standards and product quality is relatively connected to expand the international market for enterprises to lay the foundation.
Our main products: Operation Theatre Lights , Operating Room Lights , Double Dome Halogen Operating Light, Single Dome Halogen Operating Light, LED Operating Light , Surgical Operating LED Light , Mobile Type Operating Light , Gynecology Examination Tables , Obstetric Delivery Bed , Electrical Gynecological Table , Obstetric Delivery Table , Delivery Examination Table , Electric Hydraulic Operating Table, Electric Medical Operating Table, Manual Electric Operating Table , Surgical Table , Operating Table, Operating Theatre Pendants , icu tower crane in ICU room, LED Viewbox etc. professional medical equipment.
The quality of casting by me, the market led by me! Excellent from professional, KANGERJIAN people lead the new trend of medical equipment.
Electric Hydraulic Operating Table
Electric Hydraulic Operating Table,Electric Hydraulic Operating Bed,Hospital Electric Hydraulic Medical Table,Hydraulic Pressure Operation Bed
Shandong Kang'erjian Medical Technology Ltd. , https://www.operatingtable.nl