Can drones change the productivity of Japanese rice -making?

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　It can be said that the rice creation and rice industry, which have been continued since the Jomon and Yayoi era, and the main industries in Japan, have developed into a completely different economic environment from the world, and have lost international competitiveness.Forgetting the innovation as a growth industry, it has become a Galapagos industry left behind.The best thing is the inefficient cultivation method, and it is unable to compete internationally with the price setting because it takes manpower and time.In recent years, the country has been promoting the development and demonstration of smart agriculture that captures advanced technology to improve this condition, but the results remain question marks.I have been involved in rice making and rice in the United States for about 25 years, and during that time I also learned the world's rice making technology.About 10 years ago, I returned to Japan and reconsidered rice making in this country.I used the latest tools to think about inexpensive rice making technology and actually verified it.

Japan 〝unique transplant cultivation

　Japanese rice cultivation (rice production) focuses on transplant cultivation such as "rice planting work" which is often projected in news videos.However, looking at the world, the method of creating in the rice cultivation zone is overwhelmingly produced by direct sowing.It is cultivated directly in Inuida in Bolivia, Peru and Colombia, although it is a small area, such as Brazil, Uruguay, Argentina, a rice producing country in the United States, Australia, and South America.In Japan, direct sowing cultivation is the largest in the past, but it is only 20,000 to 30,000 square meters, 2 % of the total.There are two main types of direct sowing cultivation: directly sowing in dry field and direct sowing (tanzuijikamaki).Dirty sowing is a technique for sowing seeds in dry rice fields before watering, drawing out the natural power of the soil and raising rice seedlings.The flooded direct sowing is a product that collects water in a paddy field that is prepared to sow seeds and sow seeds.Both can reduce the cost of seedling facilities such as seedling boxes and vinylers that grow seedlings necessary for transplanting.In areas where they can be cultivated with water in dry fields and can be mechanized, in most areas, direct sowing cultivation is selected.The harvest is also performed by cutting and threshing with large combine at the same time, and the harvested paddy is mainly made by drying it with firepower and drying.Some countries in Asia are produced in transplant cultivation, but since the rural areas in developing countries are poor, it is not easy to purchase machine, and young workers in rural areas have cash income abroad.Many are caused by the fact that they go to work.Low cost comedy cultivation in the world is direct sowing that seeds are sown directly into paddy fields.In the method of creating and transplanting seedlings, it takes a lot of time to make the seedlings and related work to transplant, and the production costs do not decrease.So why is Japan dare to continue transplanting?This is due to the increase in part -time farmers by attracting factories to rural areas during the high economic growth period, and attracting factories to rural areas.

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