2016-09-01

On the afternoon of July 16, 2016, Li Gongle, secretary of the CPC Anyang Municipal Committee, and Wang Xinwei, mayor of Anyang, led the leaders of the four leading groups of the city to go deep into Quanfeng Aviation Plant Protection Technology Co., Ltd. for research and guidance. Cheng Lijun, secretary of the Beiguan District Party Committee, Li Fusheng, head of the district, and other district leaders accompanied the investigation.Chairman Wang Zhiguo reported the six features of this UAV product to Secretary Li, and introduced the UAV intelligent management system in detail, focusing on the next development of Quanfeng Aviation Plant Protection.Secretary Li Gongle affirmed the rapid development of the company, especially the promotion and application of UAV in agricultural modernization. At the same time, Secretary Li stressed that Anyang should focus on supporting and promoting the development of high-tech and growth-oriented industries representing the domestic frontier, such as Anyang Quanfeng Airlines.

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2016-09-01

On March 20, at the beginning of the 13th Five-Year Plan, Quanfeng Aviation Plant Protection and Nong Feike were jointly invited to participate in the 2016 National Spring Agricultural Production and Forest and Grassland Fire Prevention Work Conference held in Taizhou, Jiangsu Province. Wang Yang, Vice Premier of the State Council, Han Changfu, Minister of Agriculture, Chen Xiwen, Deputy Leader and Office Director of the Central Rural Work Leading Group, and Luo Zhijun, Secretary of the Jiangsu Provincial Party Committee, attended the meeting.During the meeting, Premier Wang Yang inspected the Quanfeng Aviation Plant Protection UAV and talked with Wang Zhiguo, the chairman of Quanfeng Aviation Plant Protection, cordially. "We have met for the fifth time", "You are developing very fast and have a high share in the country", and "How many aircrafts were sold last year". Wang Zhiguo, the chairman of Quanfeng Aviation Plant Protection, answered one by one, At the same time, Chairman Wang Zhiguo and Chairman Jiang Yongping respectively reported to the Prime Minister the work done by Quanfeng Aviation Plant Protection in the past and the new ideas of the company for agricultural modernization in the next step, which were recognized by the Prime Minister and observed the UAV flight defense operation of Quanfeng Aviation Plant Protection. This is the fifth time since 2013 to watch the UAV flight defense operation of Quanfeng Aviation Plant Protection.During the meeting, Wang Tie, the deputy governor of Henan Province, paid close attention to the development of Quanfeng Aviation Plant Protection, talked with Wang Zhiguo, the chairman of the board of directors, about "how the enterprise is developing now", and pointed out that we should actively promote the development of the industry and make contributions to the construction of national agricultural modernization.After nearly four years of winter storage and breeding, Quanfeng Aviation's plant protection has developed from the initial demonstration of flight protection to the large-scale actual operation across the country. It has delivered more than 500 plant protection UAVs to the plant protection operation platform led by the agricultural flying passenger, and has cultivated nearly 2000 plant protection UAV operators for the industry. Quanfeng Aviation Plant Protection always adheres to the business policy of "unswerving in pilot training and service; unswerving in technical innovation and product upgrading; unswerving in building and improving the flight defense service platform". With the high attention paid by the Vice Premier of the State Council Wang Yang and relevant leaders to agricultural UAVs, it will certainly promote the development of domestic agricultural aviation and accelerate the process of China's agricultural modernization.

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2016-02-27

 In order to further carry out agricultural and forestry technology innovation, on February 25, 2016, a delegation led by Sheng Guomin, chairman of the Agriculture and Rural Committee of Henan Provincial People's Congress and director of the Agricultural and Industrial Committee of the Standing Committee of Henan Provincial People's Congress, came to Anyang Quanfeng Biotechnology Co., Ltd. to visit and guide the Quanfeng Aviation Plant Protection UAV Project. Shi Donglin, deputy director of Anyang Municipal People's Congress, accompanied the tour.First of all, a group of people came to the Quanfeng conference room to watch the Quanfeng aviation plant protection promotional film, and had a preliminary concept of Quanfeng plant protection. Then Wang Zhiguo, the chairman of Quanfeng Biotechnology Co., Ltd., accompanied the explanation and research team to the Quanfeng aviation plant protection workshop, and visited the UAV production workshop, the UAV technological innovation achievements, the model and development history of Quanfeng UAV. After the visit, Sheng Guomin, the chairman of the Agriculture and Rural Committee of the Henan Provincial People's Congress and the director of the Agricultural and Industrial Committee of the Standing Committee of the Provincial People's Congress, affirmed Quanfeng's aerial plant protection UAV and business model, affirmed Quanfeng's achievements in the reform of agricultural and forestry science and technology system, the combination of production, education and research, the promotion of breeding and the transformation of scientific and technological achievements, and pointed out that China's agriculture only has a way out through continuous innovation, and this path must be followed, Implement agricultural and forestry science and technology innovation!(All rights reserved by Quanfeng Biology)

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2013-05-20

On May 18, 2013, Wang Yang, member of the Political Bureau of the CPC Central Committee and Vice Premier of the State Council, stressed that the current key stage of summer grain production was to do a good job in the field management of late wheat production, implement the technical measures of "one spray and three preventions", closely guard against the hazards of each clock, carefully prepare for the machine harvest operation and summer grain purchase, and strive to increase grain production and farmers' income.In the early summer in the Central Plains, the wheat fields are green and growing well, and a harvest is in sight. During the investigation, Vice Premier Wang Yang came to the field and talked with the local farmers, grassroots cadres and agricultural technicians to observe the growth of wheat and analyze the situation of summer grain production. When Wang Yang inspected the high-standard farmland construction demonstration project in Yuanyang County, he watched the agricultural unmanned helicopter automatic spraying operation of Anyang Quanfeng Aviation Plant Protection Technology Co., Ltd. He stressed that the higher the scale and intensification of agricultural production, the higher the requirements for agricultural mechanization and scientific and technological services. Agricultural technology should adapt to the current level of rural development in China, and be technically applicable, economically feasible and easy to operate.Accompanied by Wang Tie, Zhang Guangzhi, the deputy governor of Henan Province, and the leaders of the Henan Provincial Department of Agriculture, Wang Yang, the deputy prime minister, came to the field and greeted the staff waiting here with a kind smile and waving his hands. When Premier Wang walked up to the display model of Anyang Quanfeng Aircraft Defense, Wang Zhiguo, chairman and general manager of Anyang Quanfeng Company, stepped forward quickly to say hello to Vice Premier Wang Yang. In front of the large agricultural unmanned helicopter QF120 in the country and the agricultural unmanned aerial vehicle, also known as Quanfeng "Blue Shark", Vice Premier Wang Yang talked with Chairman Wang Zhiguo with interest: how big the aircraft is, how much it is loaded, how long it lasts, how fast it is sprayed, and so on. Chairman Wang Zhiguo answered one by one, and Premier Wang nodded while listening. When learning about the current development of Quanfeng Aviation Plant Protection from its establishment to the present, Premier Wang said that China's future agriculture needs such enterprises. With technical content, the more large-scale operation, the more need to improve the technical level of agricultural machinery. He stressed that agricultural means enterprises should adapt to the current level of China's rural areas, which is not too complex. In order to find the need to adapt to the development of agriculture at this stage, science and technology should be practical, not the more advanced the better, and should meet the needs of China's agriculture. Suitability is not only technical, but also economically feasible. The farmers with high technology, high cost and high price cannot accept it. This is very good and easy for farmers to accept.The agricultural machinery technical expert of the Henan Provincial Department of Agriculture introduced that the agricultural UAV can solve the problem that the wheat machine can not work in the later stage, which is very convenient for the operation of some high-stalk crops, and the spraying effect is also very good.Vice Premier Wang Yang also asked what difficulties the enterprises faced in the process of research, development, use and production needed government support. When learning that enterprises have invested more than 20 million yuan in the research and development of this technology, Vice Premier Wang Yang stressed that as an emerging technology, it is necessary to form marketization and operation, encourage enterprises to actively carry out independent research and development, and the government can support some subsidies, which should be economically applicable. Accompanying agricultural machinery experts from the provincial department added that the government subsidies would be stronger and the application technology would develop faster. At present, there is a great potential for agricultural helicopter spraying area, which is suitable for large areas of farmland in Henan, Xinjiang, Hainan, etc.When learning that the area of the prevention and control of the "One Spray and Three Preventions" aircraft in Henan Province has reached more than 1 million mu this year, Vice Premier Wang Yang told the leaders of the provincial government at the scene that comparative tests should be carried out so that farmers can see more clearly, and those who have advantages will have priority. Now Henan has 100 million mu of farmland, and more than 80 million mu of wheat has been sown. This year, more than 1 million mu of wheat has been sprayed by aircraft. The market is still large. The work you are doing now is like the sun at six or seven o'clock in the morning. You have just seen the dawn. There is still a great opportunity for development. Opportunities for farmers to increase production are also behind. As a government, it aims to increase production and income, and support these advanced agricultural science and technology, including the use of these agricultural machinery technologies. Farmers and your specialty and income increase, the two positive mobilization are combined with each other. As a technical product developed by you, if it is not commercially utilized and has no economic benefits, it is not suitable for the enterprise. In order to make enterprises and farmers profitable, both sides should have enthusiasm. Through the support of the government, self-reliance should be the main way, and government support should be the secondary way, and then complement each other, so as to promote the increase of agricultural production and increase the income of enterprises and farmers. This is a very meaningful and promising thing.Vice Premier Wang Yang expressed his gratitude to the plant protection enterprises and grass-roots plant protection staff present for their work and encouraged them to continue their efforts. Wang Zhiguo, chairman and general manager of Anyang Quanfeng Company, said to Vice Premier Wang Yang on behalf of the agricultural means enterprises that we will do a good job if Premier Wang said so.

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2013-05-08

On the afternoon of May 7, 2013, Ding Wei, secretary of Anyang Municipal Party Committee, Dai Yijun, member of the Standing Committee of the Municipal Party Committee and secretary general of the Municipal Party Committee, Jiang Haijun, deputy mayor, and other municipal leaders, accompanied by Li Bianfen, secretary of the Beiguan District Party Committee, and Zhang Junying, deputy secretary of the District Party Committee and head of the District, came to Anyang Quanfeng Biotechnology Co., Ltd. to visit and inspect the construction of the Quanfeng Aviation Plant Protection Project.During the visit, Secretary Ding Wei thoroughly understood the development of Quanfeng Company in recent years and the progress of new projects. Wang Zhiguo, the chairman and general manager of the company, made a brief report to the leaders on the current development of the company, and made a report on the progress of the plant growth regulator project of Quanfeng and the agricultural unmanned helicopter project of Quanfeng Aviation Plant Protection Technology Co., Ltd. In the exhibition hall, several agricultural helicopters were laid out in turn. The municipal leaders and their party looked and asked, "How much is the load of pesticides at a time, how many acres of land can be sprayed, and how efficient is it?"Wang Zhiguo, the chairman and general manager of the company, also made a statement on the progress of the pilot training of two new models and agricultural UAVs that are currently being developed by Anyang Quanfeng Aviation Plant Protection. In the multimedia classroom, Secretary Ding Wei watched the students' simulation flight with great interest. At the test site of the simulation plane, Secretary Ding Wei talked with the students and learned about their learning. Then, a group of people walked to the company's flight test site to watch the operation flight of agricultural UAVs. Secretary Ding Wei is full of confidence in the future development of aviation plant protection, and encourages enterprises to do a good job in product research and development and market development, and promote development with projects. Secretary Ding Wei asked relevant departments to give high attention and support to new and emerging projects. Enterprises should rely on projects to achieve smooth transformation, industrial upgrading and structural optimization. We should vigorously implement the project-driven strategy, clarify work responsibilities, work objectives and time nodes, and vigorously promote the construction of key projects.

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2013-04-26

On April 24, 2013, Ge Aimei, Chairman of the Anyang Municipal Committee of the CPPCC, Qiao Guoqiang, Huang Ping, Song Jiansheng, Cao Jimin, Wu Feng, and some of the directors of the special committee came to the industrial park of Beiguan District to investigate the economic and social development of Beiguan District and the work of the CPPCC. Li Bianfen, secretary of the district party committee, Zhang Junying, deputy secretary and head of the district party committee, Wang Xingzhou, deputy secretary of the district party committee, Liu Yuemin, chairman of the district CPPCC, and relevant leaders of the district party committee, the district government and the district CPPCC accompanied the investigation.Chairman Ge Aimei and his delegation came to Anyang Quanfeng Biotechnology Co., Ltd. to investigate the aviation plant protection project of Anyang Quanfeng Aviation Plant Protection Technology Co., Ltd. Chairman Ge Aimei inquired about the operation of the enterprise in detail, listened to the report of Wang Zhiguo, the chairman and general manager of Anyang Quanfeng Company, and learned about the UAV of Anyang Quanfeng Aviation Plant Protection in detail, gave a high evaluation of the current development situation of the enterprise, and put forward guiding opinions on the difficulties and problems existing in the development of the enterprise.At the test field flight site, Chairman Ge Aimei affirmed the new development of the industrial park economy. In particular, we will give a high evaluation to the high-tech projects with high scientific and technological content that can form the scale benefit of the full range of plant protection. Chairman Ge Aimei commented that the landing of high-tech projects has injected new economic growth points into the industrial economic development of Beiguan District; It also made great progress in social undertakings.

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2013-03-20

On March 14, 2013, Zheng Junfeng, member of the Standing Committee of the CPC Beijing Municipal Committee and Secretary of the CPC Beijing Municipal Commission for Discipline Inspection, and his delegation, accompanied by Li Bianfen, Secretary of the CPC Beiguan District Committee, Zhang Junying, Deputy Secretary of the CPC Beiguan District Committee and Chief of the CPC Beiguan District Committee, and Sang Jianye, Executive Deputy Chief of the CPC Beiguan District Committee, visited the progress of the enterprise's new project, Quanfeng Aviation Plant Protection.Wang Zhiguo, chairman and general manager of the company, reported on the current progress of aviation plant protection and the company's next development goals. Accompanied by General Manager Wang, all leaders visited Quanfeng Aviation Plant Protection Multi-media Classroom, Quanfeng Aviation Plant Protection R&D and Assembly Room, Quanfeng Aviation Plant Protection Field Simulation Training and UAV Field Operation and other sites, highly appreciated the company's scientific research and innovation efforts, and full of confidence in the company's development prospects. I hope the company can develop more practical new projects for the economic construction of our city, for our city And even the construction of agriculture, rural areas and farmers in the province.

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2013-03-20

On the afternoon of March 19, 2013, a delegation led by Shi Qingzhu, Minister and Deputy Minister of the Security Department of the Provincial Federation of Trade Unions, Wu Di, Secretary of Discipline Inspection of the Municipal Federation of Trade Unions, Liu Yongmou, and Lv Qixia, Minister of the Security Department of the Anyang Federation of Trade Unions, came to Quanfeng to investigate the construction of "two halls and two rooms". Liu Baoguo, Chairman of the Beiguan District Federation of Trade Unions, Wang Zhiguo, Chairman and General Manager of Anyang Quanfeng Biotechnology Co., Ltd., and Chen Zhijing, Chairman of the Trade Union, accompanied the delegation to visit and investigate.Anyang Quanfeng Biotechnology Co., Ltd. has always adhered to the concept of "development for employees, development depends on employees, and development results are shared with employees", constantly creating a good living and working environment for employees, and improving the quality of life of employees. In the construction of the company's "two halls and two rooms" activity, the company's labor union has reasonably formulated the construction plan based on its own reality, and incorporated it into the long-term development plan of the company, so as to make sure that employees live a good life Good work. At present, the activity room and reading room in the company have become the platform for staff activities, learning and communication. The basic canteen and bathhouse have reached the goal of scientific catering, sanitation and high quality service to satisfy staff.

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2013-01-15

On January 10, 2013, more than 20 deputies to the provincial and municipal people's congresses braved the severe cold to conduct research in Anyang Quanfeng Company. Wang Xishe, deputy director of Anyang Municipal People's Congress, and representatives, accompanied by Li Bianfen, secretary of the Beiguan District Party Committee, Zhang Junying, deputy secretary and acting head of the district, and Sang Jianye, executive deputy head of the Beiguan District, visited enterprises' projects under construction, and investigated the development of enterprises and new projects.The representatives of the provincial and municipal people's congresses who participated in the survey deeply understood the development of the company in recent years and the new projects. Wang Zhiguo, the chairman and general manager of the company, briefed the delegates on the current development, and reported to the provincial and municipal people's congresses on the technological innovation of Anyang Quanfeng R&D Center and the agricultural unmanned helicopter project of Anyang Quanfeng Aviation Plant Protection Technology Co., Ltd. The representatives fully affirmed the scientific research strength and scientific research projects of the company's R&D center.During the visit to the agricultural unmanned helicopter project, the representatives observed the agricultural unmanned helicopter in a close distance with interest. The representatives asked about the driving and operator training of the agricultural unmanned helicopter in detail, and had a detailed understanding of the use costs and costs of the agricultural unmanned helicopter on crops. The new project of Quanfeng Company - Anyang Quanfeng Aviation Plant Protection Technology Co., Ltd. was established in October 2012, which is a plant protection company focusing on the research and development, production and sales of agricultural unmanned helicopters, agricultural unmanned aerial vehicle operator training, and the research and development of special pesticide formulations for aircraft. General Manager Wang Zhiguo also reported to the delegates on the next step of agricultural UAV operator training. Mr. Wang said that the QF26-1 and QF80-1 developed and produced by the company have been put on the market and have been sold. Mr. Wang also gave a detailed description of the model research and development, operator training, agricultural UAV application and next step planning of agricultural UAV in 2013.When we learned that the agricultural unmanned helicopter project has been widely used in developed countries such as Europe and the United States, and China is still in the initial stage, and Quanfeng is one of the few manufacturers in China, the representatives of the provincial and municipal people's congresses are full of confidence in the future development of Quanfeng aviation plant protection, and hope that the new development and cutting-edge technology of Quanfeng aviation plant protection can play a huge role in China's agricultural production and application, and become the main force of China's agricultural plant protection services.

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2023-01-17

Citrus is a fruit tree with more flowers and less fruit. Most of the flowers and young fruit fall off during flowering and fruit development, and the fruit setting rate is about 5%.The law of citrus flower and fruit abscissionThe flower and fruit shedding of citrus is a normal phenomenon. If tens of thousands of flowers are sitting on the fruit, it will not kill the fruit tree alive!  Citrus malformed flowerCitrus flower fall: the flower fall before flowering and after flowering are mainly incomplete flowers or deformed flowers. These flowers will not bear fruit. In order to avoid the phenomenon of occupying the pit, they will fall off naturally. It usually accounts for about 25% of the total flowers.Citrus fruit fall can be divided into three stages, namely the first physiological fruit fall, the second physiological fruit fall and pre-harvest fruit fall.The first physiological fruit drop: the young fruit falls off with stems, usually 10 to 15 days after flowering, with a large amount of fruit drop, accounting for about 50% of the total flower amount.The second physiological fruit drop: the fruit falls off from the honey tray without fruit stem, which generally occurs 20 days after the last fruit drop, accounting for about 20% of the total flower amount.Pre-harvest fruit falling: it occurs after fruit setting and before harvest, accounting for about 1% of the total flowers.Reasons for excessive shedding of citrus flowers and fruitsThe natural shedding of flowers and fruits during the growth and development of citrus is a normal physiological regulation, but if the excessive shedding of flowers and fruits will directly affect the fruit setting rate and yield, then what are the reasons for the serious shedding of flowers and fruits of citrus?Falling flower anomalyWhen citrus flower bud differentiation, if the nutrient is insufficient, or there are diseases and insect pests such as bud maggot, thrips, anthrax, etc., or through artificial flower promotion, especially poor management after ring cutting, the differentiation can be interrupted or poor, forming many incomplete flowers and deformed flowers, and a large number of falling off.In early spring, the tree body was yellowing and even defoliated seriously, the photosynthetic intensity decreased, and the photosynthetic products were difficult to transport to the root, but accumulated in the aboveground part, resulting in an increase in the number of flowers and a decrease in the number of healthy flowers, leading to serious flower falling and bud falling.In case of overcast and rainy weather during flowering, excessive water will make the pistil stigma mucus of the flower insufficient and lose its pollination function, resulting in flower falling.Abnormal high temperature and air drying during flowering will shorten the flowering period, and the pistil stigma will quickly dry up, affecting the fertilization and causing flower shedding.Fruit drop anomalyThe first physiological fruit dropWhen citrus blooms, it consumes a lot of nutrients in the tree, and does not replenish it in time after flowering, which is easy to cause insufficient nutrient supply during the development of young fruit, and a large number of fruit falls.The vegetative shoots of spring shoots grow too fast, especially the ones that mature slowly, which will increase the consumption of nutrients. The immature spring shoots cannot produce organic nutrients through photosynthesis, leading to fruit drop.Abnormal temperature can easily cause fruit drop, and too dry or wet soil can also cause fruit drop. The main reason is that the absorption of soil nutrients by roots is affected, resulting in insufficient nutrient supply.Insufficient light will affect the synthesis and transportation of photosynthetic products, so long rainy days or large shading between plants and rows will also cause a large number of fruit drop.The second physiological fruit dropThe deficiency of auxin and gibberellin in young fruit, especially in seedless varieties, causes the increase of ethylene and abscisic acid levels in the fruit stalk to induce delamination and fruit drop.In summer, the temperature is high and the fertilizer efficiency is fast. Citrus trees are prone to sprout summer shoots. The summer shoots sprout too much. The vegetative growth and reproductive growth are carried out at the same time, competing with the young fruit for nutrients. At this time, if the control is not effective, it will also aggravate the fruit drop.Poor weather conditions, such as high temperature and rainy weather, cause fruit falling.Preharvest fruit dropIt is mainly related to bad weather conditions, nutritional factors, diseases and insect pests.How to protect flowers and fruits?At present, the main citrus production areas have entered the period from sprouting to bud, so how to carry out the next work of flower and fruit protection?1. Apply germination fertilizerBefore and after the spring shoots sprout, the topsoil layer shall be opened inwards with the water drop line of the tree crown to supplement nutrients to improve the nutrient level of the tree body and coordinate the balance between nutrient growth and reproductive growth.2. Supplementary application of Xie Hua fertilizerSpring shoots sprout and bloom in large numbers, and the tree consumes a lot of nutrients, especially nitrogen. If inorganic nutrients are not supplemented in time, a large number of young fruits will fall off.3. Top dressing on the leaves to speed up the ripening of spring shootsTopdressing outside the root in spring can quickly overcome the problems of slow greening of spring shoots, weakened photosynthesis, decreased tree vigor and unstable fruit setting due to insufficient root absorption.4. Drought prevention and water drainageSpring drought often occurs during the flowering and fruit-setting period of citrus. Spring drought will cause short spring shoots, abnormal flower buds, many abnormal flowers, or petals and styles wither during flowering, stigma mucus is dry and solid, anthers die, and pollination cannot be carried out, or the pollen tube cannot extend to the ovary after pollination, and the young fruit falls off due to poor development. Therefore, in case of drought and high temperature, water must be sprayed in time to keep the soil moist, so as to facilitate the growth of root groups and absorb nutrients for supply.Frequent continuous rain in spring will cause ponding in the garden, affecting the growth and absorption of roots, and even root rot or root suffocation due to lack of air, leading to black and necrosis of young fruit. At the same time, the continuous rain will also cause the petals to not fall off, affecting the young fruit pericarp to turn green. Therefore, in rainy days, the orchard should be inspected in time to remove water and shake flowers.5. Prevention and control of diseases and pestsThe main diseases and insect pests that directly cause flower and fruit fall include: bud maggot, malignant leaf beetle, flower thrips, red spider, rust spider, leaf roller, weevil, anthrax, ulcer, scab, etc. Pay attention to prevention and control in proper period.6. Rational use of growth regulatorsGibberellin, cytokinin, prochloraz, sodium nitrophenolate, brassinolide and so on are widely used.7. Eliminate excessive spring shoots and early summer shootsThis is a method to solve the contradiction between sprouting and fruiting, and it is applicable to young fruiting trees and young trees. First, remove the overgrown spring shoots, and remove some new shoots according to the principle of "three by two" and "five by two" before the shoots are cut. The second is to pick the heart. When the spring shoots grow to 15 cm, be careful to save nutrients. Third, when the summer shoots are 3-5 cm long, they will be completely wiped out until the end of the second physiological fruit fall in the first and middle of July.8. Avoid fertilizer injury and drug damageDuring the period of flower and fruit conservation, we should not only fertilize but also control diseases and insect pests, spray auxin and supplement trace elements.Therefore, we should carefully arrange the interval between each fertilization or spraying, and also understand whether each pesticide can be used during flower and fruit conservation, the safe and effective concentration used, and whether it can be mixed. In principle, the fertilizer should be applied thinly several times to avoid the injury of new roots and affect the fruit setting.(Article source: agricultural assistant)

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