• 제목/요약/키워드: Crop productivity

검색결과 811건 처리시간 0.058초

고품질 및 기능성 증진을 위한 작물생산기술의 인구 현황과 전망 (Present Status and Prospect of Crop Production Technology to Improve the Crop Quality and Functionality)

  • 채제천
    • 한국작물학회지
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    • 제47권
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    • pp.1-14
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    • 2002
  • Development of crops with high quality as well as various beneficial functions is necessary to satisfy consumers being interested in their health and to enhance a competitiveness in the international market of agricultural products. What we have achieved so far from our research on crop quality was not sufficient since we often neglected sensory feature of crop products such as eating quality but in many cases, we put more emphases on nutrient contents, physico-chemical properties, and out-appearing features of the products. Therefore developments of sensory elements and technique for evaluation with a priority given to eating quality of each of an individual crop are important and very urgent to be solved in Korea. An endeavor to develop bioactive crops is necessary and resonable but aspects of both productivity and economy with a special emphasis on the original purposes such as production of energy and nutrient for human life must be considered. The development of more concrete ideas for crop functionality is essential before any research goes further.

한국 농가의 지역별 동계사료작물 생산성 비교 (Comparison of Yields of Winter Forage Crops According to Regions of Korea)

  • 임영철;최기춘;박형수;지희정;김기용;이상학;최기준;김맹중;김원호
    • 한국초지조사료학회지
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    • 제33권4호
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    • pp.275-280
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    • 2013
  • 본 연구에서는 농가에서 동계 사료작물을 2012년 5월 중순부터 하순까지 지역별로 조사료 생산성을 조사하여 조사료의 생산성의 지표나 기초적인 통계자료로 활용하기 위해 수행되었다. 본 연구는 도별로 2개소씩 안배하여 총 16개시 군 66개 농가를 무작위로 선정하여 IRG는 11개 시 군 22농가, 총체보리는 8개 시 군 21농가, 호밀은 5개 시 군 11농가, IRG +총체보리 혼파는 6개 시 군 12농가에서 실측조사를 실시하였다. 조사료의 건물수량은 전체평균 9,418 kg/ha 이였으며, 호밀, IRG의 수량 보다 총체보리 또는 IRG +총체보리 혼파에서 높은 수량을 보였다. 조사지역중 공주(IRG+총체보리 혼파)에서 가장 높은 수량(15,128 kg/ha)을 보였으며 당진(간척지에서 IRG)에서는 가장 낮은 수량(3,885 kg/ha)을 나타냈다. 지역별 조사료 생산성은 일정한 경향이 없이 다양한 분포를 나타내어 지역보다는 농가의 재배수준에 따른 생산성 변화가 더 크게 나타남을 알 수 있었다.

Evaluating the agronomic characteristics and yield variations of 'Saemimyeon' by changing transplanting and harvesting time

  • Bae, Hyun Kyung;Oh, Seong Hwan;Yi, Hwi Jong;Seo, Jong Ho;Hwang, Chung Dong;Choi, Won Yeung;Kim, Sang Yeol;Oh, Myung Kyu
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.300-300
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    • 2017
  • 'Saemimyeon' a Tongil-type rice variety (Indica ${\times}$ Japonica), which contains high amylose contents is suitable for rice noodle production. Nowadays, the major parts of rice processing industry that includes products like rice flour and noodles are expected to partially replace wheat flour market. The volume of rice noodle market is getting bigger and can contribute to the rice surplus and farmer's income. This study was carried out to promote productivity and flour-making quality of 'Saemimyeon' by finding the most suitable transplanting and harvesting times. The transplanting days used were May $10^{th}$, May $17^{th}$, May $24^{th}$, May $31^{th}$, June $7^{th}$ and June $14^{th}$ and the planting distance used was 30 x 12cm. In addition, harvesting time was determined by days after heading time (40, 45, 50, 55 and 60 days). The field experiment was conducted at the experimental field in Miryang (Southern plain area of Korea) from 2015 to 2016. Our results suggest that the optimum transplanting days were from May $24^{th}$ to May $31^{th}$ which resulted to an average yield of 748~751kg/10a. Interestingly, yield was sharply decreased below 700kg/10a before May $10^{th}$ and after June $7^{th}$. The average grain filling rate before May $31^{th}$ was more than 83% but it declined to 75% after June $7^{th}$. The average temperature ranges from heading time to harvesting time was $ 21\sim25^{\circ}C$ and the estimated optimal temperature was $23.4^{\circ}C$ which is similar to May $24^{th}$ by regression equation. We found that the optimal harvest time was 45~50 days after heading time. It is hypothesized that low temperature at seed maturation time caused the lower grain filling rate therefore 'Saemimyeon' need to be transplanted before May $31^{th}$ for higher productivity. We found no statistical variation in amylose contents among experimental plots (28.2~30.4%). We conclude that the productivity of 'Saemimyeon' highly depends on temperature that is critical for grain filling stage controlled by transplanting time.

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Varietal Variation of Productivity and Chemical Components on Seed-Mustard (Brassica juncea Cosson) Lines

  • Shin, Dong-Young;Kwon, Byung-Sun;Hyun, Kyu-Hwan;Kuk, Yong-In;Jung, Dong-Soo;Jang, Young-Seok
    • 한국자원식물학회지
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    • 제22권6호
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    • pp.513-517
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    • 2009
  • Seed mustard is high in nutrient quality and grows continuously under cold condition. Accordingly, it possessess high potential to bring about more efficient use of land when it is grown as a seasonings crop at paddy field in winter season. Recently, Seed mustard has aroused people‘s interest as a catch crop. The purpose of this trial is to examine productivity and chemical components of seed mustard and to select suitable variety in the southern area of Korea. Seed-mustard cv. Yeongsanpo local showed higher seed yield than any other varieties used in the experiment. It showed relatively high content of Oil, Protein, Ash, Carbo, $P_2O_5$, $K_2O$, Ca and T-N. The heritabilities of all the characters were estimated to be high. Therefore, it was concluded that Youngsanpo local was the most suitable variety with high yield and high nutrient quality at the southern area of Korea.