Gadgetory

have you ever wondered how people came up with the idea of growing certain crops for food if not in today's video we'd like to tell you a little bit about this in particular about rice after all its history is very rich and profound and the methods of cultivation differ from country to country and surprise us with their uniqueness initially rice was a wild plant domestic cultivation started about 9,000 years ago in Southeast Asia it's not known how many rice domestication centers existed however most scientists agreed that there were two of them in southern China one subspecies of rice was created the other was found to the south of the Himalayas presumably in eastern India or in western Indochina two millennia later rice was cultivated as a food crop still in Southeast Asia in the territory of modern India and China rice spread all over the world a little later in the second and third centuries BC in the 2nd and 3rd centuries BC it reached Central Asia in the 8th century it appeared in Europe and in the 15th to 16th centuries in America in Shores is an extremely ancient cereal crop which still enjoys great popularity in the world Mazal classification includes a huge number of rice varieties it's grown even in Africa for more than two or three millennia however African rice is not in great demand as it's almost completely displaced from the market by Asian source according to data from 2016 China is the country that produces the most rice in the world in just one year two hundred nine point five times of rice are grown here India is in second place with a hundred and fifty eight point eight tons on the third with a huge gap Indonesia with seventy seven point three tons Bangladesh Vietnam Myanmar Thailand and the Philippines are also among the countries that produce the largest amounts of rice however it is grown almost all over the world simply in smaller amounts for example in Spain Italy Greece Turkey Russia and the USA rice is a very moisture loving and thermophilic cereal crop growth and development take an average of 150 days the exact number depends on the species at the same time all days the temperature should not exceed the range of 22 to 30 degrees Celsius this unusual way of cultivation you see on the screen is common in China India Japan Java as well as in some places in Transcaucasia here rice is not immediately planted on the plantations at first it's grown up in greenhouses workers put shallow trays on a special conveyor belt it connects several types of equipment the trays are first filled with soil the loading machine is operated by a person who changes bags of soil as they are emptied the row of brushes on the conveyor belt is needed to evenly distribute a layer of soil on the tray and at the same time to compress it the next step is the role of treatment which creates a series of furrows in the soil it's located directly in front of the equipment which plants the seeds directly into the soil this machine is also operated by a person who constantly refills the tank with new seeds notice that the roller and the equipment's are calibrated so that the seeds are evenly distributed in the furrows throughout the entire conveyer process the soil level and the trays is controlled by rollers this is important because the pallets will then stand on top of each other in the next step special brushes mix the ground of the seeds they work effectively enough to guarantee that 99% of the seeds will be under a thin layer of soil and will be able to sprout in the final stage the trays run through several watering lines the farmers then collect the trace and take them to the greenhouse interestingly they determined that the rice is ready for planting but the help of the most common rulers finally the height of the sprouts reaches 15 to 20 centimeters then the rice arrives to the special plug stations which are divided into two types there can be permanent in which case the land it's always under water and the rice is sown there every year it can also be its temporary plantation which means farmers plant rice therefore a maximum of 2 to 3 summers and then they choose another less water-loving crops as so there is a reason why some of the plantations are temporary the fact is that rice is basically a marsh plant that needs a lot of standing water rice fields are under water for so long there's a certain risk of swamp formation first it can lead to the spread of diseases secondly a lot of water is spent on maintaining the fields it should not be forgotten that for many countries water is still a scarce resource in addition rice cultivation is not a cheap process either wet rice the most popular variety requires 2 to 5 times more water than other crops the plantation may be located in a mountainous area or as in this case on a flat land the fields are treated to ensure uniform irrigation and good drainage it's then divided into sections by rollers the water is poured through the canal system the workers make sure that the field is flat even after has been filled with water to this purpose a tractor with special attachments is used the excess soil is simply removed the water layer on such plantations usually reaches six to eight centimeters rice is planted here from March to June depending on the region it's noteworthy that no fertilizers are used for rice cultivation traditionally it's believed that the most common water supplies sprouts with sufficient nutrients rice used to be planted by hand on the plantations today planting machines are used for this purpose they are loaded with trays with sprouts the operator then directs the machine along the field each sprouts is picked up and then placed into the ground even rows of plants are formed at the same distance from each other the workers at the plantation constantly monitor the condition of the water from time to time the water is discharged fully or partially in order to fill us up again the procedure is performed every third fourth or tenth day in some cases depending on the climate of the type of voice the water is changed even less often removing weeds and spraying herbicides is preferable and the water is trained in the past a procedure was always done manually now herbicides are increasingly being sprayed on the fields using agricultural drums like this one by Yamaha before the harvest the water is completely drained signs of maturity are the yellow stems and leaves and white grains in Central Asia this usually occurs in late August or early September it's important to harvest the rice and thyme the dried spikes break off very easily so part of the crop is lost the right rice is cut or as in this case pull for this purpose specialized equipment is used the spike is dried within two to three days after harvesting excessive moisture causes mold to appear at this stage the cereal is not like the rice we see at the shops it is brown because of the holes covering the grain after drying it is milled and checked for quality it's now considered to be ground ie unhulled before the rice goes to the shops it's differently cleared of foreign matter the whole mass is then passed through the millstones where the husk is removed and finally the last stage of rice processing is in a polishing machine 74 percent of the raw materials harvested from the field are pure rice the remaining twenty six percent are holes and seed buds hey stop being lazy it's time to use that brain of yours welcome to brain time incredible facts from the past the present and even the future the power of nature and wild animals amazing facts and unsolved mysteries you'll find all this and much more hair subscribe now you won't regret it