The magical role of rare earths in agriculture
First, the basic concepts and the content of rare earths in the earth's crust are a group of elements in the periodic table. It consists of 15 elements, such as yttrium, ytterbium, ytterbium, ytterbium, etc., which are very similar in nature, and a total of 17 elements that are very similar to those of lanthanides. The elemental composition, collectively referred to as rare earth elements.
In fact, rare earth elements are not scarce, 17 elements together account for 0.0153% of the total crust, which is more than double the total amount of copper in the earth's crust. As far as individual elements are concerned, most of them have a Clarke value of 0.0046%, which is similar to the common element zinc.钇 is 0.0028%, 镧 is 0.0018% more than common elemental lead.
In short, the content of rare earth elements in the earth's crust is about the same as that of copper, lead and zinc, and more than tin, cobalt, silver, mercury and other elements.
Second, China's reserves and its unique use China's unique rare earth resources, has proven reserves of 43 million tons, ranking first in the world. Because of its unique electronic layer structure, rare earth elements have excellent magnetic, optical and electrical properties. Therefore, rare earth materials are widely used in more than 40 industries in 13 fields including metallurgical machinery, petrochemicals, light industrial agriculture, electronic information, energy environmental protection, defense and military industry, and high-tech materials. It has produced significant economic benefits and social benefits. It is an indispensable strategic material for the transformation of traditional industries and the development of high-tech and defense-related cutting-edge technologies in countries around the world.
Third, the origin of the rare earth agriculture and research progress at home and abroad
In 1917, Qian Chongji and Ostenhout of the United States published papers on the physiological effects of Smilax glabra, Siniperca chuatsi, and Siniperca chuatsi, which pioneered the study of the biological activity of rare earth elements. In the 1930s, the former Soviet Union did a lot of experimental research on the plant physiological effects of rare earths, involving crops such as peas, radishes, cucumbers, flax and rubber grasses, and clearly clarified the role of rare earths in promoting the growth of these crops.
Since the 1970s, China has passed in-depth experimental research and repeated production practices. In 1985, he obtained major breakthroughs in the field of rare earth agricultural technology, soil science, plant physiology, toxicology and hygiene, analysis and testing, and agricultural product production processes. He achieved more than 120 results and 1300 research reports, and successfully implemented rare earth elements. Applied to China's agricultural production, it will continue to study rare earth biological activity for nearly 60 years, develop into a practical technology, and become the world's first application of rare earth elements as a commercial product (Changle) The agricultural production countries have accumulated 15 billion yuan of economic and huge social benefits. At present, it is recognized internationally that the research and application of rare earth agricultural technology in China is at the leading international level. High-efficient rare earth compound formula has been exported to South Korea and Malaysia. The United States, Israel, Australia, and Thailand also came into contact with me and requested cooperation with China to conduct research on rare earth agricultural technologies.
Fourth, in the agricultural wonders
1. Promoting seed germination and rooting and germination. Rare-earth seed dressing and seed soaking can increase seed vigor, promote the germination of crop seeds, and increase the seedling emergence rate of seeds. It is an important role of rare earths to increase crop efficiency. The soaking and seed dressing of rare earth compounds with certain concentration can increase the vitality of seeds. This effect of rare earth has been applied to field crops such as wheat, rice, corn, soybean, cabbage, rapeseed, and hemp, among which wheat germination has increased by 8~19. %, flax increased by 7% to 12%, this effect of rare earth is also used for pasture cultivation, its germination rate increased by 9.8 to 19%. Nursery bases in forestry also use this characteristic of rare earths. Seed soaking can significantly increase their vitality. Treating Pinus tabulaeformis, Caragana korshinskii, and Larix principis-rupprechtii seeds with an appropriate amount of rare earth compound solution can increase seed vigor index by 8%~13, respectively. %, 25.9~57.2% and 9%, the germination rate increased by 4%~11%, 2%~6% and 3%~9%, respectively, and the emergence peak in the field was 2~4 days earlier. Mulberry seed soaking can increase the germination rate of 18% to 78%.
Rare earth has a significant promoting effect on plant roots and cutting rooting. Plant roots are important organs for plants to obtain water and nutrients from their living environment. The physiological activities of roots directly affect the growth and development of a plant's life. Studies have shown that appropriate amounts of rare earth elements can promote the growth and development of plant roots, increase root activity, promote root differentiation and metabolic activities, and increase the ability of roots to absorb nutrients. Studies have shown that the volume of rice roots treated with appropriate amounts of rare earth increased by 1.18 times compared with the control, and the root activity increased by 20%. The peanut test also showed that the root activity of rare earth-treated peanuts also increased by 30.8% compared with the control. Field crops such as wheat, rice, maize, and sugarcane all have significant promoting effects on root growth. Root length increased by 4% to 10%, root weight increased by more than 15%, and root volume increased by 2.5%. Rare earth elements have a promoting effect on the rooting of woody plant cuttings, especially the growth stimulant and auxin have better effect. With cuttings made of poplar, rose, cypress, and larch, the rooting rate reached 60% to 85%, and the root growth of the hardy root cuttings such as longan, alpine smile, and chestnut can reach 35% to 60%. Hormone rooting rate increased by 30%.
The increase of rare earth activity on seeds and the increase of germination rate and the promotion of cutting rooting of woody plants can ensure the emergence of crops and the survival rate of cuttings. It not only lays a foundation for harvest, but also saves time and cost. Proverbs often say "have money to buy seeds, no money to buy seedlings." Rare earths will play an important role in seed germination, transplanting and cutting.
2 Promote the increase of chlorophyll, increase the yield and improve the quality Chlorophyll is the material basis for photosynthesis of plants. The higher the chlorophyll content, the greater the intensity of photosynthesis. Years of test results have shown that after applying rare earths to many crops, the chlorophyll content has increased. Three-tenths of rare earths were sprayed on the rice during the seedling stage. After a period of time, the color of the leaves could be observed to be gradually deepened. The content of chlorophyll in the flag leaves was increased by 11.8% compared with the control. Lily leaf chlorophyll content increased 0.2mg/g. The appropriate amounts of rare earths were sprayed on the leaves to significantly increase the photosynthetic rate, chlorophyll content, photon flux density and other physiological indexes of the black currant leaves, indicating that the rare earth could promote the growth of black currant. An increase in chlorophyll will increase the cumulative amount of dry matter in the plant and increase economic output. The experimental results of Heilongjiang spring wheat show that there are 34 production increases in 39 tests, and the increase rate is 7.53% to 18.88%. Long-term location test results also indicate that rare earths promote wheat growth and increase production by 5% to 10%. The yield increase rate applied to rice is 30 kg/mu, the increase rate of corn is 41~50 kg/mu, the yield of rape is 7.6~11.4%, the average yield of tea is 12%~15%, the vegetables such as cucumber is 25%, and the yield of strawberries is 30%. At the same time, other vegetables and economic crops also have a good yield increase effect.
Rare earths have applications in promoting the growth of forest seed, increasing forest product output, and improving product quality. At present, more than 40 tree species have been applied to soaking seedlings for seed soaking, dressing, rooting, cuttings, and foliar spraying to promote tree growth, prevent disease, increase stress resistance, and increase yield. Rare earth elements have certain yield-increasing effects on a variety of fruit trees, generally increasing the yield by 10% to 25%. For different types of fruit in different geographical locations, the effect of increasing production varies due to changes in climatic conditions. For example, in the southern citrus, litchi and longan, rare earth production increased by 19.2%, 17.0%, and 24.5%, respectively, compared with unsprayed rare earths; grapes, apples, and pears in the north increased by 22.8%, 14.7%, and 11.3%, respectively. In addition, the application of rare earth in fruit trees can not only increase the yield, but also improve the quality of seedlings and fruits, increase the sugar content, vitamin content and hardness of the fruit to varying degrees, and at the same time promote coloration and early maturation; Increase 15% to 25%.
The appropriate amount of rare earth seed dressing can increase the germination rate of new mulberry seeds by 7 percentage points and the old seeds by 44 percentage points, which can significantly promote the growth of seedlings. The test results also showed that after the mulberry was sprayed with the appropriate concentration of rare earth, the number of winds increased by 6.4 to 9.0%, the length of new shoots increased by 6.89 to 22.46% and the number of leaves increased by 5.12 to 14.1%, and the average leaf weight increased by 12.57 to 31.49%. The output per unit area increased by 11.67-16.67%.
V. New technologies for rare earths and their application prospects Since the 8th Five-Year Plan period, new technologies such as rare earth light-switching films, rare earth anti-drought water retention agents, rare-earth phosphate fertilizers, and rare earth plant growth regulators have been used for water conservation, fertilizer conservation, use methods, and significant results. Low cost and other features. The organic rare earth feed additive has the characteristics of significantly promoting animal growth, improving quality, increasing survival rate and disease resistance. The new rare earth materials based on ultra-fine powders and nano-technology have significant functions such as increasing seed germination, promoting plant growth, and enhancing plant stress resistance. It is an important field and direction for the future research on rare earth agriculture.
1 The unique outer electronic structure of the rare earth ions in the rare earth conversion film makes it easy to absorb near-ultraviolet excitation after forming organic or inorganic compounds, and thus emits visible fluorescence emission corresponding to the central ions. The rare earth light-transmitting film utilizes high absorption of ultraviolet light by organic ligands, high light-emitting efficiency of rare-earth ions, and is obtained by dispersing rare-earth organic complexes into existing multifunctional agricultural films, and has a fluorescent conversion light-emitting function. Agricultural polymer materials. The rare earth light-transmitting film can convert most of the ultraviolet light unfavorable to crop growth in the sunlight into red orange light that can be directly utilized by the plant photosynthesis, thereby improving the chlorophyll content of the crop by improving the light quality of the crop. Therefore, compared with the common membrane, it can significantly increase the photosynthesis intensity of crops, increase the ground temperature and greenhouse temperature, reduce the crop disease index and nitrate content in fruits, accelerate the growth process, increase the crop yield by 7-48%, and increase fruit production. Vc, carotene and soluble sugar content.
China has now become the largest agricultural film market in the world. According to the statistics of the national statistics department, China needs to use more than 1 million tons of agricultural film each year, of which the average annual usage of agricultural film has exceeded 300,000 tons. According to the prediction of related departments, by 2002, the use of agricultural film has increased from 4.7% of the total cultivated land area to 6%. As many regions in China will greatly adjust the structure of agricultural cultivation, the area under cultivation of economic crops will increase, and the area of ​​food crops will decrease. Most economic crops need to be raised by agricultural film, and multifunctional agricultural films are expected to grow by about 20%. The demand for membranes will drop by about 15%, and the proportion of multifunctional greenhouse greenhouse films will increase by more than 30%. The rare earth light-transmitting film is based on the multifunctional agricultural film, and has increased the function of turning light. It can be widely used in agriculture, has great development potential, and has bright development prospects.
Light-transmitting materials also have broad development prospects in industry, medicine and other high-tech fields. With the gradual thinning of the ozone layer over the Earth, the ozone hole over the Antarctic has gradually expanded and people are increasingly concerned about the radiation of ultraviolet rays. The light-transmitting technology is applied to glass, sun board and textile fiber, and can effectively absorb and convert ultraviolet rays in sunlight, improve light conditions, and reduce ultraviolet radiation. In addition, rare earth light-transmitting materials can also be used in chemical analysis, display devices, rare earth biomolecule fluorescent probes, and fluorescent labeling of rare earth biomolecules. Therefore, rare earth light-transmitting materials have broad market potential and huge social and economic benefits.
2 Rare-earth anti-drought and water-retaining agent The water-retaining agent is a kind of superabsorbent resin. This kind of substance contains a large number of strong water-absorbing groups and has a specific structure. It does not produce high permeability in the resin and absorbs water through its mesh structure. It absorbs water at its maximum. Up to 1000 times its own weight.
Water-retaining agent is a new type of polymer water-absorbing material that was firstly developed by the North American Institute in the 1970s. It can be widely used in many fields such as engineering, agriculture, construction, and sanitation. In 1980, the United States first achieved industrial production, followed by Japan, France, Britain, Italy, and other countries with different scales of production. Water-retaining agents are widely used by domestic and foreign agricultural experts because they can regulate the comprehensive functions of soil water and fertilizers and maintain and improve the effectiveness of water and nutrients.
The development of China's water-retaining agents began in the 1980s. Most of the products have been established, and a considerable number of products have passed technical appraisal. At present, there are tens of millions of acres of promotional area. The rare earth anti-drought water-retention agent absorbs foreign water-retaining technology and uses a unique rare-earth catalysis and additive technology to develop a rare earth polymer water-absorbent material, which is compounded with the optimum ratio of seed fertilizer and various trace elements required for plant growth. Made of water-retaining, fertilizer-saving, easy-to-use, and low-cost, it has great potential for development and application.
Road Milk Tanker/Milk Tank truck
Product Description
LEO company is the only supplier use of air suspension technology manufacturing milk transport trailer in China market. We also have 40tons of fresh milk transport trailer special announcement. We strict implementation of LEO enterprise standards which is higher than national standards, and the Ministry of Agriculture through the identification, to ensure product quality, high security factory, allowing user safer and more economical use of the product. The product is widely used in New Hope Dairy, Chongqing Tianyou Dairy, Heilongjiang Wandashan Dairy, Shanghai Bright Dariy, Yili, Mengniu Dairy, Sanyuan Dairy, Bright Dairy, Shenyang Huishan, Beijing Zhongdi, Ningxia Jiujjiajiu milk transportation company(for Ningxia Mengniu, Yili, Chongqing Tianyou) etc.
Features:
1. semi-trailer classis with air suspension bridge, effectively reduce the chassis weight 2.8 tons, so that the vehicle is running more fuel-effcient and more economical; and the user of the rear axle air suspension make tanker traveling more secure.
2. Milk receiving and discharge, use electronically controlled pneumatic exhaust valve technology, driver in the cab can operate the process more convenient and more secure.
3. Manhole Cover with mechanical hard seal, instead of a rubber ring seal, reducing pollutions and avoiding freezing milk in winter times. Manhole cover and eliminating wearing parts.
4. Thicker insulation layer, insulation materials using polyurethane foam 100 mm, ensuring milk quality in long-distance transportation.
5. Tank partitions seal head conical seal head, impact resistance more stronger, effectively extending the service life of the tank.
6. Partition on both sides of the inner tank are large arc transition, which ensuring no cleaning blind angle in side tank. Milk tank body inner seal head with a radius of 30mm special mold spin forming,the interior of the partition using
7. Tank body polyurethane foam insulation layer by vacuum technology, thermal insulation effect is good, full volume temperature change within 12 hours temperature does not exceed 2℃. Insulation layer can be tailor-made to meet the insulation requirements of different customers.
8. Trailer type road Milk Tanker can use disc, ABS control system.
9. The technical requirements for Road milk tanker meet GB1589 triaxial vehicle standards, and to provide all the formalities to meet the requirements to circulated on road. Chassis through the 3C cerification, compliance with motor vehicle licensing regulations.
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Henan Leo Husbandry Equipment Science and Technology Co.ltd , https://www.chinaleodairy.com