• 한국작물학회지
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• 제48권6호
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• pp.452-459
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• 2003

땅콩의 완전종실생산을 위해서는 150-180일의 생육기간이 소요되나 풋땅콩용으로 출하하면 총생육일수를 20-30일 정도 단축할 수 있을 뿐만 아니라 수확후 지상부 잔존유기물도 많이 남게 된다. 땅콩재배기간 단축에 따른 풋땅콩-무, 보리, 마늘과의 relay-cropping system에서 수확후 잔존 유기물의 토양환원 유무에 따른 각 작물들의 생육과 토양의 이화학성, 미생물상의 변화양상에 관한 기초자료를 얻어 남부지역 풋땅콩 안정생산기술을 확립하고자 수행한 시험결과를 요약하면 다음과 같다. 1. 작부체계별 시험후 토양경도는 풋땅콩 단작에서 가장 높았고, 토양 공 극율은 풋땅콩 단작 대비무, 보리, 마늘과 2모작 작부체계 처리에서 높 았으며 수확후 잔존유기물을 환원하였을 때 더욱 높아졌다. 2. 단작의 풋땅콩은 보리, 마늘과 2모작 작부체계상에서 재배된 풋땅콩에 비하여 도복 및 병 발생이 심하였다. 작부체계별 풋땅콩 수량은 단작에 비하여 풋땅콩-보리 및 풋땅콩-마늘 작부체계에서 증수하였으나, 유기 물 환원에 따른 수량 차이는 없었다. 3. 풋땅콩 후작의 마늘과 보리의 수량은 유기물 환원에 의하여 증대되었다. 4. C/N율이 높은 보리짚의 토양 환원에서 질소무기량이 증가하였고, 풋땅콩-보리와 풋땅콩-마늘의 작부체계에서 Pseudomonas spp.균 및 Trichoderma spp.균의 밀도가 높아져 풋땅콩의 친환경 작부체계로 추정되었다

• 한국환경과학회지
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• 제31권5호
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• pp.413-422
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• 2022

To identify rice (Oryza sativa L.) cultivars suitable for Italian ryegrass (Lolium multiflorum Lam.)-rice double cropping systems, we investigated the yield and grain quality of four different midseason maturing rice cultivars ('Daebo', 'Haepum', 'Haiami', and 'Samdeog') and four midseason-to-late maturing rice cultivars ('Hyunpoom', 'Saeilmi', 'Saenuri', and 'Samkwang') in single rice cropping and Italian ryegrass-rice double cropping systems in paddy fields of Miryang, South Korea. We found that organic matter and available P₂O₅ content slightly decreased, whereas Na content increased, in the soil where Italian ryegrass was cultivated during winter compared to that in the soil that remained fallow during winter. The pH, electrical conductivity, organic matter, and contents of K⁺, Ca²⁺, Mg²⁺, and Na⁺ decreased, whereas the available P₂O₅ content slightly increased, in the soil where rice was harvested in both single and double cropping systems. However, compared to the optimum soil conditions for rice cultivation, available P₂O₅ and K⁺ content were high and Mg²⁺ content was low in both single and double cropping systems. At the heading stage, the culm length and leaf color slightly increased in most of the rice cultivars, whereas the panicle length and number slightly decreased, in the double cropped system. After harvesting, spikelet number and milled rice yield did not show a significant difference between single and double cropping systems. However, the ripened grain rate and weight per thousand grains increased slightly in the 'Saeilmi' and 'Samkwang' cultivars but remained either stable or slightly low in other cultivars in the double cropping system. The milled rice yield was high (> 500 kg/10a) in 'Daebo' and 'Haepum' among midseason maturing rice cultivars, and in 'Saeilmi' and 'Saenuri' among midseason-to-late maturing rice cultivars, in both single and double cropping systems. The head rice rate was high in midseason maturing rice cultivars in the double cropping systems, reaching > 70% in 'Haepum' and 'Haiami' cultivars, whereas it decreased in most midseason-to-late maturing rice cultivars (excluding 'Samkwang' cultivar), in double cropping systems. Particularly, it exceeded > 70% in the 'Saenuri' cultivar in both single and double cropping systems. The protein content in milled rice increased, whereas the amylose content either remained stable or slightly increased, in double cropping systems. The Toyo taste value decreased in all midseason-to-late maturing rice cultivars and slightly increased in the 'Daebo' and 'Haiami' cultivars among midseason maturing rice cultivars in double cropping systems. However, Toyo taste values in the 'Haepum', 'Haiami', and 'Saenuri' cultivars exceeding > 80% in both single and double cropping systems. Therefore, we recommend 'Haepum', 'Haiami', and 'Saenuri' cultivars as candidates for Italian ryegrass-rice double cropping systems due to high yield, head rice rate, and Toyo taste value.

• 한국자원식물학회지
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• 제17권2호
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• pp.147-152
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• 2004

참깨에 관한 작부체계 확립으로 농경지활용도를 높이고 안정생산 기반을 구축하고자, 참깨 단작 등 4작부유형을 도입하여 2001년부터 2002년까지 2년에 걸쳐 시험한 결과 잡초발생량은 보리＋참깨에서 많이 발생하였고, 작부유형간에는 보리＋참깨는 후작물에서 많았으나, 그 외에서는 전작물에서 많았다. 보리＋참깨와 참깨＋배추의 작부유형은 전ㆍ후작물의 생육에 지장이 없으며, 소득도 참깨 단작에 비하여 각각 21％, 61％ 높았다. 참깨＋배추에는 전작물의 비닐 피복물을 후작물에서도 이용할 수 있어 생력화와 경영비를 절감할 수 있었으나, 들깨가 후작물로 도입시 파종기가 늦어 생육이 부진하고 수량이 감소되었다. 작부유형별 토양 물리성 개선효과는 보리＋참깨와 참깨＋배추에서 양호하였다.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.1003-1012
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• 1993

The objective of this study was to evaluate the effectiveness of tillage and cropping management systems in reducing the movement of nitrate and pesticides in surface and sub-surface flow. Nitrate and pesticides in runoff and sub-surface tile flow have been monitored for two years from fields with various tillage and cropping management practices. Samples have also been obtained along the mainstream of the watershed. Concentrations of nitrate an pesticides differed little among specific sampling locations along the river, but they definitely followed a seasonal cycle. Nitrate concentrations from the tile drains varied considerably between fields depending upon the cropping management systems used, with concentrations varying seasonally as inthe river.

• 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.

• 한국자원식물학회지
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• 제34권4호
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• pp.249-256
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• 2021

김치의 재료로 우리나라에서 중요한 채소인 배추는 호냉성으로 여름에는 서늘한 고랭지역에서 주로 재배된다. 고랭지에서 배추 재배 시 주로 배추를 매년 이어짓기하거나 감자와 번갈아 가면서 재배하고 있는데, 본 연구에서는 두 가지 작부체계 하에서 토양 물리화학성, 배추 생산성 그리고 배추 무기성분의 차이를 분석하고 평가하였다. 결과적으로 토양 내 유기물, 유효인산, 칼륨(K⁺)은 두 작부체계 모두 6년의 재배 이후 감소하였으며, 토양 pH는 배추 이어짓기 작부에서만 감소하였다. 표토의 공극률 또한 두 작부체계에서 모두 감소하였으나 감자와 돌려짓기 작부에서는 심토의 공극률이 증가하였다. 돌려짓기 작부에서는 배추와 잎의 크기가 유의하게 높아 높은 수량을 얻었다. 식물체 분석 결과 6년의 재배 이후 두 작부체계 모두 배추의 총 질소, Ca²⁺, Mg²⁺은 증가하고 총탄소와 인산함량은 감소하였는데, 총질소와 Mg²⁺은 이어짓기 작부에서 Ca²⁺은 돌려짓기 작부에서 감소하여 배추 재배 시 작부체계가 토양의 물리화학성과 작물의 생산성에 영향을 줌을 시사하였다.

• 한국환경과학회지
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• 제30권8호
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• pp.659-671
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• 2021

The physicochemical properties of soil and the yield and quality of rice (Oryza sativa L. cv. Sailmi) were assessed using Italian ryegrass (Lolium multiflorum Lam. cv. Kowinearly)-rice double cropping systems in the paddy fields at Goseong and Miryang in southern Korea. The average temperatures during the ripening period were approximately 1 ℃ higher than the optimal temperature for rice ripening and the sunshine duration was reduced by frequent rainfall. Consequently, it was slightly below the optimal conditions required for rice ripening. In the soil at Goseong, winter Italian ryegrass cropping increased the pH, electrical conductivity, and the contents of organic matter, total nitrogen (T-N), available P₂O₅, K, Ca, and Mg than winter fallowing. Particularly, the contents of T-N and available P₂O₅increased significantly. In the soil at Miryang, Italian ryegrass slightly increased the electrical conductivity and the T-N, Mg, and Na contents. Therefore, winter Italian ryegrass cropping improved the physicochemical properties of paddy soils; however, Italian ryegrass-rice double cropping slightly reduced the culm length at both Goseong and Miryang, without markedly changing the panicle length or number compared to fallow-rice cropping. Furthermore, at Goseong, Italian ryegrass-rice double cropping slightly decreased the spikelet number and milled rice yield, and increased the ripened grain rate; however, at Miryang, contrasting results were observed. In addition, fallow-rice cropping revealed no differences in the head rice or opaque rice rates. The protein content was slightly increased in Italian ryegrass-rice double cropping, without significant changes in the amylose content or Toyo value, compared to that in fallow-rice cropping. The peak and breakdown viscosities were slightly decreased. These results indicate that winter Italian ryegrass cropping might alter rice taste but may not exhibit remarkable negative effects on rice cultivation. Therefore, Italian ryegrass-rice double cropping system is recommended for paddy fields in southern Korea. Nevertheless, to increase the rice yield and quality, fertilization standards for rice cropping that consider the changes in the T-N and organic matter contents in paddy fields caused by winter Italian ryegrass cropping need to be established.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2018년도 하계 학술발표초록집
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• pp.39-56
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• 2018

• 한국작물학회지
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• 제66권4호
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• pp.297-306
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• 2021

본 연구에서는 사료작물-벼 2모작 작부체계에 적합한 벼 품종을 선발하고자, 사료작물 중 재배면적이 가장 많은 이탈리안라이그라스와 귀리를 연계한 2모작 작부체계에서 토양특성, 조생종 벼의 생육 특성과 미질의 변화를 조사하였다. 벼 앞그루로 겨울철에 휴경하였을 때보다 사료작물을 재배하였을 때 논 토양 내 pH가 다소 낮아지고 T-N, K, Ca, Na 함량이 높았으며 유기물과 유효인산(Av. P₂O₅) 함량은 다소 감소하였다. 이는 겨울철 사료작물 재배로 인해 논 토양의 화학적 특성이 개선될 수 있음을 보여준다. 출수기에 해담쌀을 제외한 3종의 조생종 벼에서는 간장, 수장, 수수, 엽색도가 대체로 벼 단작에 비해 사료작물-벼 재배답에서 높게 나타났다. 그러나 해담쌀은 간장과 엽색도가 차이가 없고, 수장이 다소 짧아졌지만 수수는 오히려 증가하는 양상을 보였다. 그리고, 수확기에 백미수량이 2모작 작부체계에서 다른 3종은 다소 감소하지만 해담쌀은 차이를 보이지 않았다. 그리고, 완전미의 비율은 사료작물-벼 2모작 재배 시 다소 높았으며, 특히 조평과 해담쌀에서 높았다. 백미의 단백질 함량은 벼 단작에 비해 사료작물-벼 재배에서 높았고, 아밀로스 함량은 벼 단작과 같거나 그보다 다소 낮았다. Toyo 식미치는 사료작물-벼 작부체계에서 대체로 감소하였으며, 호화온도는 모든 품종에서 작부체계별로는 통계적으로 유의미한 차이를 보이지 않았다. 그럼에도 불구하고, 해담쌀은 2모작 작부체계에서도 다른 품종에 비하여 호화온도가 낮으면서 Toyo 식미치값이 높아서, 식미도 가장 양호한 것으로 나타났다. 더욱이 그 생장은 작부체계에 따라 차이가 없으나 수수는 오히려 2모작 작부체계에서 증가하여 백미수량 감소가 없는 것으로 나타나, 해담쌀이 사료작물과 연계한 논 기반 작부체계에 최적의 품종으로 보인다.

• 농업과학연구
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• 제45권3호
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• pp.355-363
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• 2018

This study was conducted to investigate suitable rice cultivars for various rice based cropping systems in a paddy field in the Yeongnam plain area. Thirteen rice cultivars (5 early, 3 medium and 5 mid-late maturing cultivars) and three transplanting dates (June 5, June 25 and July 5) were evaluated in this study. The mid-late and early maturing cultivars for the July 5 and June 25 transplanting headed before August 30 which is the safe heading date in the Yeongnam plain area, ranging from Aug. 26 - 28 and Aug. 18 - 23, respectively. The safe harvest time of rice for double and triple cropping systems should be before the middle of October for the cultivation of the succeeding winter crops. The rice yield was the highest for the June 5 transplanting regardless of the rice cultivars, and it gradually decreased as the transplanting date was delayed from June 5 to July 5 due to a decrease in the spikelet numbers per panicle number and in the ripened grain rate. In contrast, the other yield parameters that include the panicle number per $m^2$, the 1,000-brown rice weight, and the ripened grain ratio were not significantly affected. The result indicates that based on the milled rice, heading time and harvest time, a medium maturing cultivar (Haiami and Samdeog) would be applicable to a winter barley/wheat, garlic/onion-summer rice double cropping, while a mid-late cultivar (Saeilmi, Saenuri and Hyunpoom) would be suitable for a spring potato/waxy corn-summer rice double cropping in the Yeongnam plain area. On the other hand, an early maturing cultivar (Unkwang, Jokwang and Haedamssal) would be preferable for a triple cropping because of the short growth period of rice.