Magazine of the Korean Society of Agricultural Engineers (한국농공학회지)
- Volume 13 Issue 1
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- Pages.2162-2176
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- 1971
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- 0253-3146(pISSN)
A Study on a New Working-system of Mechanical Land Clearing and Development of Fertle Soil.
기계개간의 새로운 작업체계와 숙지화 촉진에 관한 연구
Abstract
From the ancient times our forefathers settled down in this peninsular and cultivated the hills and waste-lands into fields. Instead of fertilizing the lands they moved to find other fertile lands and lived a feudal life of agriculture and various machines played a main role in the land reclamation. The best method of land clearing, the time and efficiency in the operation and the effect of growing crops should sysematically analized prior to the time of 3rd Five-year Economic Development(1972-1976) in order to cultivated 210,000 ha of waste-land or the modernization of our country. The present study was investigated to find out a new working-system of mechanical land clearing and development of fertile soil. The results are as follows: 1) The land reclamation in natural slope is much more encourageable in land clearing and farming when the slope is below ten grades than bench terrace. 2) Weeds were mixed with soil in the land clearing work in order to supply organic materials and to make soil swollen instead of burning of just removing. 3) The equipments such as bulldozers, harrows, power tillers and so on should be prepared in order to do a systematic work in the land clearing. 4) The work of pulling-up roots is dependent upon the forms of roots spreading under the ground. The work of the pulling-up the straight roots was most difficult. 5) The land clearing work of the wrinkled style blocks was easy in pulling up roots and in the time of first plowing. The harrowing work could also be simply done. 6) The amount of soil carried was
옛날부터 우리들의 선조들이 한반도에 정착하면서부터 산야를 파서 농경지를 조성하였으며 지력(地力)을 회복하는 대신 토지를 교체하면서 오랫동안 봉건적 농업을 이루어 나왔다. 근대농업은 기계를 도입하였으며 따라서 농지조성도 기계개간을 하게 되었다. 종래와 같이 산지를 파면 된다는 피상적인 형식에 그칠 것이 아니라 실질적으로 개간작업방식, 작업시간, 작업능율, 작물재배효과 등을 종합하여 가장 우수한 방법을 추출(抽出) 연구하여 제3차 경제개발 5개년 계획기간 (
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