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우루과이 벼농사와 쌀 수출산업 분석 : 1. 우루과이 벼농사 특징 Ⅰ. Rice Farming in Uruguay
강양순,신명철 한국국제농업개발학회 2004 韓國國際農業開發學會誌 Vol.16 No.1
우루과이 정부로부터 우루과이 국립농업연구소(INIA : Instituto Nacional de Investigacion Agropecuario Uruguay) 연구능력 강화를 위한 협력사업 요청을 받고 2003년 9월 20일부터 31일까지 우리 정부에 의해서 협력타당성 분석을 위한 우루과이 현지 조사와 자료분석이 이루어졌다. 우루과이 벼농사의 특징과 벼 재배환경 및 표준재배기술을 요약하면 다음과 같다. 1. 우루과이 벼농사의 특징은 우리와 반대계절에 재배되고 논이 따로 없이 목장에서 목초와 벼를 윤작체계로 하는 대규모 수출상업농이다. 2. 벼 재배환경은 기온이 비교적 낮고 토양 중인산과 규산함량이 극히 낮아서 냉해발생 빈도가 잦은 편이나 광활한 대평원과 풍부한 수자원으로 벼 생산에 아주 유리하여 제 3의 수출상품으로 발전시켰다. 3. 벼는 건답상태로 직파한 후에 담수재배하며 벼-목초-가축의 윤작체계로 지력유지와 잡초방제를 기하고 제초제와 비료사용을 최소화하여 환경 친화적으로 재배하며 특히 토양, 관개수, 쌀의 농약잔류분석을 체계적으로 실시하여 환경농업을 철저히 실천하는 표준재배를 하고 있다. Korean government received the requirement of cooperative project for strengthening of rice research ability to INIA (Instituto Nacional de Investigacion Agropecuario, Uruguay). A field investigation was undertaken in Uruguay and analysis of research papers were carried out from September 20-30, 2003 to determine the cooperative appropriateness by Korean government. The characters of rice farming in Uruguay that has the rotation cropping system based on rice-forage crops such as rye grass, lotus and red clover in pasture is a very important exporting industry. It is developing as the 3rd industry goods in Uruguay by having the favorable cultivation environments with vast plain and a plenty of water for rice production, although low temperature and low contents of phosphate and silicic acid in soil related to cool injury of rice occurred during rice growing period. The rice farming is managed by friendly-environment theregy reducing the cost, maintaining of soil fertility, control of weeds and minimizing use of fertilizer by the rice-forage crop-cattle complex farming system. Rice is seeded in dry condition and then irrigated by 3㎝ depth of water. Especially, the rice cropping is practicing the sustainable agriculture system by keeping off the standard culture that has applied 70㎏ per ha of nitrogen and no potassium, and by the analytical operating of the residual agricultural chemicals to soil, irrigation water and rice grains.
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이철환,진정의,한철수,Lee, Chul-Hwan,Jin, Jeong-Eui,Han, Chul-Soo 한국연초학회 1997 한국연초학회지 Vol.19 No.1
The field experiment for field desalinization by precultivation of orchard crops were carried out to evaluate relationship between the varieation of chlorine contents of soil and crop uptake in the upland diverted from paddy field. After harvest of grass crops, soil samples were taken for analysis of chlorine contents of soil layers. Regardless of kinds of grass crops cutivated, contents of soil chlorine were decreased comparing to non-crop plot. Chlorine content in plant harvested at just before the flowering stage was much higher than that of after flowering. Chlorine uptake and dry matter were increased in order of Italian ryegrass, Perennial ryegrass, and Sudan grass. Positive correlations were showed between chlorine uptake and dry matter. The content of soil chlorine decreased by higher yield of dry matter.
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