• 한국잡초학회지
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• 제30권3호
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• pp.266-271
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• 2010

기존의 쌀겨농법 기술을 보완하여 잡초방제효과를 증진하기 위해 쌀겨의 분시방법 및 대두박과의 혼용, 중경제초와의 병행을 통한 잡초방제효과 및 쌀 수량의 변화를 조사하였다. 쌀겨 및 대두박 투입시기 조절에 따른 잡초방제효과 시험에서는 쌀겨관행구에서 잡초억제율이 가장 높아 대두박을 쌀겨와 같이 투입하는 것은 부적절하였다. 그러나 이앙 후 5일의 대두박 처리에서 피 발생이 적어 대두박 내 초기 피 발생 억제물질 존재 여부에 대한 추후 연구가 필요한 것으로 생각된다. 관행에 비해 잡초발생이 많은 쌀겨 및 대두박 시용의 경우 중경제초 병행 효과가 있었고 이에 대한 정밀한 중경제초 시기 및 방법에 대한 시험이 필요할 것이다.

• 대한가정학회지
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• 제28권3호
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• pp.105-125
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• 1990

The 78 housekeeping books were analyzed to find out the structure of income and expenditure of the farm household. The selected farm households were classified into 4 different farming types such as rice-cultivating, vinyl house, fruit-growing, and livestock farming. The results are summarized as follows : 1) The farm housekeeper ought to rationally manage farm household money income, because agricultural income was preponderated to several months regardless of farming types. 2) Farm household income was primarily dependent upon agricultural income and non-agricultural income in the livestock farming and rice-cultivating farm houshold respectively. 3) order of living expenses of the total farm households were recreation and entertainment expenses, food expenses, education expenses, and housing, fuel & light expenses in size. The major expenses were education expenses, food expenses and miscellaneous expenses in rice-cultivating, vinyl house and livestock farming, and fruit growing farm households respectively. 4) Balance of income and expenses of the farm household, s its time, size, and pattern of increase and decrease, was different by farming types. 5) Household expenses increased in February, May, August and December, though disposable income reversely decreased in February, April, August and December compared to each former month. So, special consideration should be taken into budget planning for household money management in February, August and December.

• 한국농공학회논문집
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• 제46권1호
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• pp.75-86
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• 2004

The objective of the research is to develop agricultural resue technologies of reclaiming the effluents from a municipal wastewater treatment plant and reusing for irrigated rice paddies. The Suwon wastewater treatment plant was selected for wastewater reuse tests. The control was the plots with groundwater irrigation (TR＃1), the treatment (TR＃2) using polluted stream water as it was, and three others using wastewater after treatment. Three levels of wastewater treatments were employed： the effluent from the wastewater treatment plant (TR＃3), sand filtering after treatment plant(TR＃4), and ultra-violet treatment after sand filtering (TR＃5). The randomized block method was applied to wastewater application to paddy rice with five treatments and six replica. The effects of various wastewater treatment levels on water quality, paddy soil, crop growth, yields, and the health hazards were investigated. The primary results indicate that cultivating rice with reclaimed wastewater irrigation did not cause a problem to adverse effects on crop growth and yields. Overall, wastewater could be used as a practical alternative measure for reclaimed wastewater irrigation. However, long-term monitoring is recommended on the effects on soil chemical characteristics and its related health concerns.

• 생명과학회지
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• 제30권5호
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• pp.411-419
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• 2020

GM 작물의 개발은 경제적 중요성을 갖게 되었고 상업적인 GM 작물을 재배하는 국가들은 1960년대 이후 지속적으로 증가하고 있다. 비록 GM 작물의 경작과 상업화는 경제적 중요성을 얻었지만, 여전히 non-GM 작물에 비해 그들의 농업적 특성을 평가할 필요가 있다. 본 연구는 유전공학에서 사용된 방법의 결과로 발생할 수 있는 의도하지 않은 문제 발생 여부를 확인하기 위해 내건성 유전자 CaMsrB2를 포함한 GM 쌀과 non-GM 쌀의 농업적 특성을 내건성 온실과 관개수답에서 평가했다. 관개수답에서는 GM벼와 non-GM벼의 모든 농업형질에서 유의미한 차이가 없었다. 그러나 내건성온실에서 수수와 수량에서 GM벼와 non-GM벼에서 유의미한 차이가 있었다. 따라서 본 연구 결과는 CaMsrB2 유전자를 함유한 GM벼가 내건성 조건에서 non-GM 쌀에 비해 경제적 가치가 우수하다는 것을 시사한다. 이 결과는 또한 CaMsrB2 유전자를 함유한 GM 벼는 가뭄에 취약한 지역에서 안정적으로 수량을 유지 하면서 재배 가능 하다.

• 한국초지조사료학회지
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• 제27권2호
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• pp.117-122
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• 2007

본 시험은 1984년에 방조제가 완공된 충남 당진군에 위치한 대호간척지($37^{\circ}\;N,\;126.4^{\circ}\;E$)의 한국농촌공사 시험연구포장에서 2004년 3월부터 2006년 10월까지 3년간 수행하였다. 여름 작물에서 출현율은 수수${\times}$수단그라스 파종구에서 $23%{\sim}30%$로 매우 낮았다. 겨울작물에서는 총체 벼 재배후 이탈리안 라이그라스 파종구에서 가장 높았다. 월동율은 총체 벼 재배 후 이탈리안 라이그라스 파종구가 가장 높았으며, 수수${\times}$수단그라스 재배후 총체보리 파종구가 가장 낮았다. 하작물과 동작물을 연계한 작부체계에서 ha당 생초 및 건물수량은 총체 벼+이탈리안 라이그라스(50,807kg, 15,065kg) 작부체계가 가장 수량이 높았으며, 수수${\times}$수단그라스+총체보리(17,247kg, 5,209kg)으로 가장 낮았다. ha당 조단백질 생산량은 총체 벼+총체보리 작부체계가 가장 높았다. TDN 생산량에서는 총체 벼+이탈리안 라이그라스 작부체계가 가장 높았다.

• 농업생명과학연구
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• 제46권6호
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• pp.173-184
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• 2012

본 연구는 지역 농지자원의 효율적인 이용을 위해 경상남도 농경지의 이용구조의 변화요인을 분석하고 전망하는 것을 목적으로 하고 있다. 이를 위해 전체 작물을 쌀, 하계 식량작물류, 하계 채소 및 특용작물류, 과일, 보리쌀, 동계 노지채소류, 동계 시설채소류의 7개 작물 그룹으로 구분하였으며, 이들에 대한 작물별 경작지 배분모형을 개발하여 추정하였다. 추정결과 자체가격과 재배면적 간에는 양의 상관관계가 존재하였으며, 대체가격에 있어서는 하계작물의 경우 쌀과 과일 등 모든 작물간에 경합관계가 존재하고 있으며, 동계작물의 경우, 노지 채소류와 시설채소류간에 경합관계가 뚜렷한 것으로 나타났다. 한편 재배면적의 자체가격과 농업노임에 대한 탄성치도 연도별로 추정하였다. 마지막으로 시나리오 분석 하에 경남지역 작물의 총재배면적은 2010년 15만 9천 ha에서 2020년에는 14만 3천 ha~15만 3천 ha에 이를 것으로 전망된다. 작물그룹별로 쌀, 기타식량작물류, 보리쌀은 재배면적의 감소가 예상되며, 하계채소 특용작물류, 과일, 동계노지채소류, 동계시설채소류는 재배면적의 정체가 예상된다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.340-340
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• 2017

Rice straw is very important to maintain fertility in agricultural soil with several aspects such as carbon and nitrogen cycles in Korea. Recently, concerning about climate change, carbon sequestration in agricultural land has become one of the most interesting and debating issues. Rice straw is most representative source of organic material produced in agricultural sectors. In order to evaluate changes of soil carbon treated by rice straw during cultivating rice in paddy field, we carried out to treat rice straw with 0, 0.5, 1, 1.5, and $2.0ton\;ha^{-1}$ at $50{\times}50{\times}20cm$ blocks made of wood board, and analyze contents of fulvic acid and humic acid form, and total carbon periodically. The experiment was conducted in 2013-2016, and sampled with interval in a month. The organic material was applied to treatment blocks in 2 weeks ago in rice transplanting of each year. Total carbon in beginning time is low as $7.9g\;kg^{-1}$. The contents of total carbon with treatments of rice straw after experiment are recorded as 8.7, 11.2, 9.5, 10.5, and $10.9g\;kg^{-1}$ applied by 0, 0.5, 1, 1.5, and $2.0ton\;ha^{-1}$, respectively. When trend lines were calculated on changes of soil carbon in periods of experiments, The trend equations of soil carbon changes with treatments of 0, 0.5, 1, 1.5, and $2.0ton\;ha^{-1}$ were Y=0.0015X+8.479, Y=0.073X+8.2577, Y=0.0503X+8.4477, Y=0.0822X+8.2103, and Y=0.082X+8.5736. These trends suggested several results. When rice straw was applied in cultivating paddy fields, most carbon in rice straw would be decomposed regardless the amount of rice straw in soil. We calculated sequestration rate of applied rice straw as about 0.1% per year during rice cultivation in paddy fields. It means that if farmer want to increase 1% soil organic matter by using application of rice straw returned after cultivation, famer should apply rice straw continuously for ten years. The change of soil carbon as fulvic acid, humic acid, and humane is showed that only content of carbon as mumine is increased significantly while fulvic acid and humic acid were changed in range of 10 to 30% among total carbon in soil. In conclusion, to sequestrate soil carbon with rice straw, it is important for rice straw to apply continuously every year. The amount of rice straw applied is not much effected to increase soil organic matter.

• 한국작물학회지
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• 제14권
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• pp.159-164
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• 1973

본 시험은 중부지방에서 재배방법의 차이(이앙재배, 담수직파재배, 건답직파재배)에 따른 수도품종의 생육ㆍ수량의 변이를 알고자 1970-1972년에 걸쳐 수행되었던 바 그 결과를 요약하면 다음과 같다. 1. 파종에서 출수까지의 일수는 담수직파가 이앙재배에 비해 현저히 단축되었으며 건답직파재배는 이앙재배에 비해 출수일수가 연장되었다. 2. 수수는 담수직파재배, 건답직파재배, 이앙재배, 순으로 많았으며 일수영화수는 이앙재배, 건답직파재배, 담수직파재배순으로 많았다. 3. 정조중은 모두 품종 공히 담수직파재배에서 가장 많았고 이앙재배는 건답직파재배보다 증수되었으며 담수직파재배에서 고위수량성인 품종은 사도미노리, 아끼바레, 수원 213-001 등이었다. 4. 수량과 수량구성요소와의 상관을 보면 이앙재배에서는 현미천입중 및 일수영화수, 담수직파재배에서는 일수영화수 및 수수, 건답직파재배에서는 수수와 정(+)의 높은 상관이 인정되었다. 5. 정조중과 출수일수와의 상관은 건답직파재배와 담수직파재배에서는 부(-)의 상관관계가 현저하였으나 이앙재배에서는 부(-)의 상관이 매우 낮았다.

• 가정과삶의질연구
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• 제18권3호통권47호
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• pp.1-14
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• 2000

This study was to find out the status of labor division between rural husband and wife by measuring the labor time for tasks, the ratio of relative contribution toward work, and work segregation. Data used in this study were collected fro 424 persons of 212 farm households mainly cultivating rice and barley. The results of this study were as follows : 1) In the case of work directly related to farming, working hours of husband were significantly longer than those of wife during the farming and off-farming season. In contrast working hours of wife for housekeeping were significantly longer than those of husband during both seasons. 2) The ratio of relative contribution toward farming work of husband was a little higher than that of wife during farming and off-farming season. But this toward housekeeping work was less than that of wife. 3) The degree of gender segregation in farming was 0.33 during the farming season and 0.01 during the off-farming season. The kinds of work and time distribution were relatively same. The degree of gender segregation in housekeeping was 0.79 during the farming season and 0.72 during the off-farming season. These values showed inequality of work segregation in the kind of work and time distribution.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.343-343
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• 2017

This study was conducted to investigate cropping system using paddy field in 152 cities and counties of Korea. Out of the 152 cities and counties, 106 regions responded(70%). The number of cultivated crops in 2 and 3 cropping system using paddy field was 48 crops. Among these, 35 crops were cultivated in winter and spring, 27 crops were cultivated in summer and fall. There were 33 crops in paddy field after cultivating rice. Among these, 11 crops were cultivated in spring and 26 crops were in fall-winter. There were 44 crops in paddy field without cultivating rice. Among these, 19 crops were cultivated in spring, 27 crops were in summer, 15 crops were in fall. Total cropping systems in Korea were 138 types, 2 cropping system were 119, among them outdoor crops were 77, using facility crops were 42, and 3 cropping system crops were 19. Cropping system of Jeonbuk province was 45 types and it was the most in Korea. Cropping systems of southern area were more various than those of middle-northern area in Korea.