In the prehistoric era. From the archaeological evidence found include a round hole in the Middle Stone age, approximately 7000 – 5000, which last year assumed a weighted end of the wood, the stones, which are used for digging or drilling Plai Laem DIN, a hole to feed grain for planting. They also found an iron hoe-like tool, about 2000 years ago, and the top color axes, polished stones. These tools assume that a device that is used to prepare the soil for planting rice. Preparing the soil in a prehistoric land preparation easy using these tools to penetrate the ground to a small hole or holes, and then pour the grain into.The human use of metal melt into a machine to be efficient in the forest area planted to Lampoon more rice. Using traditional tools deposition may not be enough. It is used to make Clay County from the archaeological study of the ruan sui at ban Chiang. Archaeologists have assumptions that the forest area was to Lampoon group is shifting rice planting. During the subsequent ban Chiang know people used tools made of iron with performance better than the old tools. In wild rice areas to Lampoon is expanding more and more traditional rice cultivation may not be effective enough. Therefore, the use of cattle for towing a shoulders in thai but sommutithan still argued, because they never found evidence that as a component of the plough or disc Harrow plough (oldest evidence about plowing to prepare soil appears in inscriptions according to prepare his.And the painting in the country Egypt, which has no less than 2000 years before Christ;) Archaeologists assume that in the first phase. Human clay, wood pieces of a single push, ruan is suitable for the subsequent development of the Hoa grain wood has two projects ahead until the County evolved into producing animal towing.The Sukhothai era It is used in animal drag labour County plow. From the archaeological evidence unearthed suphan buri province, a pottery container surface looks as a signature stamp image people are plowing with a plow harness co couple whose age 19 – 20 in the story or in the Sukhothai era. Archaeologists assume that as evidence that the Royal Majesty will nangkhan the first ceremony gifts, which is preparing the soil farming by animal labour.The Ayutthaya period still use animal labor, etc. is to drag a plow land preparation for planting rice from evidence found as carved wooden Buddha images, phonthep chawet your plow that is art, the late Ayutthaya period.Rattanakosin era In the early Rattanakosin era, King Rama IV until there are still animal labour, but only as a source of labor is to drag a plow is in some cattle and cows is used in particular in the preparation of dry land to sow grain and in some of the northern provinces, with the use of elephants in thai na.Features of soil preparation by using the device of critical animal workers contains the active child and force (force) is the device that caught the animal. Use rabue with a rope line to cover the stable 2 per line of the topmost ones to plow some of this rope is called khao plough. In the plow and disc Harrow plough comprises a section that serves the usual disc Harrow plough plough the land and there will be 2: a curved plough road a little nip wacha. Disc Harrow plough not long to make the animal dragging, light and soil contamination in a disc Harrow plough curved sand-ruan is greater than the length so that the soil plough disc Harrow and flip the Bale, Earth is not broken as well. Wood County is a County, or evening star is the bottom end curve ngon embedded on the back of the head, the upper end of the pig as the plough control called tail guard vehicles clearly is plow part from Saigon out long in front of the plough filed to tie the rope to the rake tool rake aekkrabue construction พื.And the sub soil, consisting of a car rake a rake off mom off to tie the rope to drag cattle. Mom is the tooth Harrow rake embedded tooth Harrow sections or tooth Harrow rake and weed parts door handle. For the handle to control the rake as another device called the wood or wood planks towards the round length is approximately 150 – 180 cm adjustable front drag to land animals used to rake the ground smooth after settling a sculptor known as the land of mountains.The evolution of the tools used to prepare clayThe evolution of the tools used to prepare clay by use of animal workers have very little and is going slowly. The device has a maximum development is part of the county head and plow, and pork, which are developed to suit the สภาะ of soil in each area. During the recent plow was developed, the first weight that has been established for the trial at the Klong Rangsit, NA. The County has developed a lightweight, cheap, called "County glass."Later, the area has been expanded increasingly, and rice has been digging for use as alternative transport and irrigation more se. Farmers have the opportunity to grow rice more than once a year in labour, land preparation, may not continue the event. With the green revolution of the era international, Western Hemisphere, which were mechanical invention came to be used as a tool in the preparation of the soil, rather than animal labour.In the reign of 5 M.R.W. Sanitwong Suwaphan (doctor, big house soundly) tractor has a steam plow comes in. Later, during World War 1 the doctor at Notre Dame with suvarnabhumi (Adamson), m.r. House clubbing House. Imported tractor diesel engines used the rice, but the major event which try Rangsit is the starting point for the farming machinery used in the preparation of the soil, the more widely the overheads up rice purchases Department tractor imported from abroad which is k.Rue ngayon diesel according to experimental stations and hire a plow to the rescue. The shortage of labor, farmers will pay the price are the following private hire operations have been more widely. The national economic and Social Development Council, therefore, suspend the operation of this rice Department, as a private business. Department of rice, so it changes the way a new operation by the farmer who does not receive child limited background knowledge come to training centers, training, and maintenance tools, shoulders. Set the course.
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