• Title/Summary/Keyword: 수확 전

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Effect of Seeding Date and Rates on Rice Growth and Yield in Barley / Rice Relay Cropping System (보리 입모중 벼 파종시기 및 파종량이 생육과 수량에 미치는 영향)

  • 정진일;최민규;김보경;이선용
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.41 no.2
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    • pp.223-229
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    • 1996
  • To investigate the effect of seeding date, seeding rate, and sprouted seeds on seedling establishment, yield and its components of rice in barley /rice reley cropping as a minimum tillage, Gancheokbyeo rice seeds sowed by hand broadcast in various overlapped days befer barley harvest. The highest rice seedling stand was at sowed on the day just before barley harvest and l00kg per hectare of seeding rate with sprouted seeds. Also number of tiller and panicle showed the similar tendency. Delayed rice heading dates were found 2 days at l0-day overlap, 2 days at 5-day overlap, and 4 days at 0-day overlap before barley harvest compared with machine transplanting rice at just after barley harvest using l0-days old seedling. The culm length of broadcast rice shortened 2∼4cm compared with the transplanting rice. The rice plants lodged slightly at seeding rate l00kg per hectare and at sowed on the day of barley harvest. The rice panicle number increased with later date sowing and higher seeding rate. Number of spikelets per panicle and ripened grains decreased at higher seeding rates. Sprouted seeds and higher seeding rates showed higher rice yield at later sowing dates.

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Correlationship between Climatic Elements and External Characteristics of Red Pepper Fruit in Different Growing Periods (홍고추 생육시기별 기상여건과 외형적 특성과의 상관관계)

  • 조병철;박권우;강호민;윤형권
    • Journal of Bio-Environment Control
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    • v.13 no.2
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    • pp.73-80
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    • 2004
  • Two red pepper(Capsicum annuum L.) cultivars, 'Geumtap' and 'Bugang', were cultivated at main producing areas in Korea and harvested four times in 1998 and 1999. Length, weight, dry matter ratio and color of red peppers were measured at each harvest. The relations between external characteristics with regional climatic elements such as total accumulated air temperature, total amount of precipitation and duration of sunshine during the fruit growing periods were compared. Length and fruit weight decreased by delayed harvest. These characteristics were shown significant difference according to cultivars, but not to growing year. Dry matter ratio had a tendency to increase at the 3rd and 4th harvest. The red color as measured a${\times}$L values of pepper powder, increased with being later in harvesting, but the trend was uncertain. In fruit growth, fruit length showed a positive correlation with total accumulated air temperature in later growth period of fruits(from 1st to 20th day before harvesting), and fruit weight had relationships with accumulated air temperature and total amount of precipitation in later growth period of fruit. There was no relation between dry matter ratio and climate elements. The red color was shown high correlations with total amount of precipitation and duration of sunshine. There was highest coefficient of determination($r^2$) in all external characteristics.

Growth and Postharvest Freshness of $Tah$ $Tasai$ Chinese Cabbage ($Brassica$ $campestris$ var. $narinosa$) Baby Leaf Vegetable as Affected by Brushing Treatment during Cultivation (재배 시 brushing 처리에 따른 어린잎 채소 다채의 생육과 수확 후 선도 차이)

  • Lee, Jung-Soo;Do, Kyung-Ran
    • Food Science and Preservation
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    • v.19 no.1
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    • pp.19-25
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    • 2012
  • An experiment was conducted to find out the effect of brushing treatment during cultivation on the postharvest quality of the baby leaf vegetable, specifically tah tasai Chinese cabbage (Brassica campestris var. narinosa). The effect of mechanical brushing during cultivation on the postharvest quality was determined in terms of the quality changes in weight loss, gas partial pressure, leaf color, and appearance during storage using a 30-${\mu}m$-thick polypropylene film at $16^{\circ}C$. The brushing treatment included brushing with A4 paper back and forth 50 times a day. The study revealed that the growths on the brushing-treated plant group were less than those on the control group. The structure of the leaf tissue of the brushing-treated plant also tended to be less compact than that of the non-treated plant. The brushing treatment resulted in less growth and denser plant tissues as well as in differences in the gas $O_2$ consumption and $CO_2$ accumulation after packaging. For the gas partial pressure, the $O_2$ consumption and $CO_2$ accumulation of the brushing-treated plant tended to be less than those of the non-treated plant. There were no differences, however, between the brushing-treated plant and control groups in the SPAD value and appearance. The study results also suggested that after packaging, the effects of the brushing treatment during cultivation on the quality of the tah tasai Chinese cabbage baby leaf vegetable was not significant. As such, it is recommended that effective post-harvest methods of improving the product quality of the baby leaf vegetable be further investigated.

Effect of Quality and Yield for Succeeding Crop Cultivation before Potato Harvest in Semi-highland (준고랭지 감자 수확전 후작물 재배가 품질 및 수량에 미치는 영향)

  • Suh, Jong-Taek;Chang, Dong-Chil;Cho, Ji-Hong;Cho, Kwang-Soo;Park, Young-Eun;Kim, Hyun-Jun;Cho, Hyun Mook
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.58 no.3
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    • pp.253-259
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    • 2013
  • This study was conducted to investigate proper mixed cultivation system of potato and succeeding crops (Chinese cabbage and Radish) in 2009. Potato varieties, 'Superior' a middle maturing variety and 'Haryeong' a late maturing variety were used. After potato harvest, succeeding crops of Radish and Chinese cabbage were planted on July 22th in 'Superior' variety plot and Aug. 3rd in 'Haryeong' variety plot. Potato crop was harvested in proper time, after 15, 30, 45 and 60 days. and a suitable potato variety for succeeding crops among 'Superior' and 'Haryeong' was checked. 'Superior' variety was observed to be low rotting, deformity and greening at Chinese cabbage and Radish treatment plot than non-treatment plot. In addition, high yields of potato was maintained in succeeding crop treatments.

긴급진단 - 꽃매미의 발생현황 및 방제대책

  • Lee, Sang-Gye
    • Life and Agrochemicals
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    • s.249
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    • pp.20-23
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    • 2009
  • 지구온난화에 따른 기후변화의 영향과 기주신물의 증가가 대발생 원인이다. 7월 중순 이후부터 꽃매미 성충이 인근 야산으로부터 지속적으로 이동해오므로 포도 수확 전까지 예찰을 철저히 하여 발생이 확인되면 지속적인 방제가 필요하다.

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Changes of Fruit Yield and Fresh Sprout Characteristics by Sowing Times on Chayote in Central Area of Korea (중부지방에서 파종시기별 차요테 과실 생산량 및 어린순 특성 변화)

  • Park, Eui Kwang;Jeong, Taek Gu;Lee, Min Jeong;Park, Jae Seong
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.10a
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    • pp.67-67
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    • 2018
  • 차요테(Sechium edule L.)는 중앙아메리카와 멕시코 남부가 원산인 박과 채소로 찜, 볶음, 튀김, 수프, 샐러드로 활용되는 아열대 채소다. 어린 순은 양념으로 무치거나 볶아서 나물로 이용되고, 열매는 샐러드, 수프, 볶음, 절임 등으로 이용된다. 동양에서는 뿌리채소로 이용되는 무(Raphanus sativus L.)와 유사하게 활용되고 있기도 하며, 인도네시아에서는 칠리 소스, 기름 등에 볶아 먹거나, 삶아서 양념을 찍어 먹기도 한다. 영양학적으로 열매에는 엽산, 비타민 C, 비타민 B6, 구리(Cu), 마그네슘(Mg) 등 미네랄이 풍부하며, 특히 칼륨(K)이 많이 함유되어 있다. 생태적으로 아열대지역에서는 다년생이지만 우리 나라에서는 일년생으로 취급하여, 봄에 정식하여 가을철에 개화되며, 늦가을에서 초겨울까지 열매를 수확한다. 본 연구는 중부지방에서 차요테 열매의 수확량이 줄어들지 않으면서, 차요테의 어린 순을 수확할 수 있는 재배기술을 개발하기 위하여, 2017년에 이어 2018년에도 동일한 처리로 시험을 수행하였다. 시설하우스에서 $2{\times}3m$ 간격으로 2018년 2월 9일부터 4월 21일까지 15일 간격으로 6회 파종하였고, 처리별로 발아시, 발아기, 발아전, 초장, 엽수, 엽록소함량, 어린순 수확량 등을 조사했다. 4차 처리구인 3월 23일 파종의 경우 발아시(최초 발아일)는 파종 후 4일이 소요되어, 1차 처리구 2월 10일 파종 보다 18일 빨랐고, 발아기(40% 발아)는 파종 후 10일로 24일 빨랐으며, 발아전(80% 발아)은 파종 후 16일로 25일 정도 더 빨리 발아되는 경향이었다. 정식 후부터 6월 하순까지 어린순 생산량은 4차 파종 시 773 g주$^{-1}$로 1차 파종 785g주$^{-1}$와 차이가 없을 정도로 생육이 좋았지만, 5차 파종 및 6차 파종의 경우 생산량이 저조하였다. 따라서, 하반기 과실 생산량을 추가적으로 조사하고, 어린순 생산량과 비교하여 중부지역 차요테의 최적 파종시기를 정할 수 있을 것으로 판단되었다.

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Effects of Urea and K2SO4 treatment on the mineral nutrient concentration and fruit skin color of 'Mibaekdo' peach fruits at harvest (Urea와 K2SO4 처리에 의한 복숭아 '미백도'에서 수확 시 과실의 무기성분 농도 및 과피색 변화)

  • Moon, B.W.;Yoon, I.K.;Moon, Y.J.;Nam, K.W.;Lee, Y.C.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.15 no.1
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    • pp.95-105
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    • 2013
  • This study has been conducted to investigate the effect of Urea and K2SO4 treatment at stone hardening stage and 20 days before harvest on soil chemical properties, mineral nutrient concentration and quality of 'Mibaekdo' fruit peach. K concentration after Urea and K2SO4 treatment in soil was increased significantly by Urea 162g+K2SO4 188g/tree(standard amount) treatment at stone hardening stage, K2SO4 1.0% tree-spray, Urea 81g+K2SO4 94g/tree(half amount), Urea 162g+K2SO4 188g/tree and Urea 324g+K2SO4 376g/tree(double amount) soil treatment before harvest 20 days compared to control. T-N, K and Ca concentration in leaf was increased significantly by all treatment. but Na concentration in leaf was increased by Urea 0.5% and K2SO4 1.0% tree-spray treatment before harvest 20 days. T-N concentration in fruit skin was increased significantly by standard amount soil treatment, which decreased by K2SO4 1.0% tree-spray and half amount soil treatment. T-N, K and Ca concentration in fruit flesh(1~10mm depth flesh from peel) were increased markedly by all treatment excepted Urea 0.5% tree-spray. The leaf weight at harvest was increased markedly by Urea 0.5% tree-spray, standard amount and double amount treatment before harvest 20 days. Fruit weight was increased significantly by standard amount compared to all treatment. Red fruit skin(Hunter a value) progress was effective by K2SO4 tree-spray, half amount and double amount treatment before harvest 20 days. Fruit SSC was increased significantly by Urea 0.5% and K2SO4 tree-spray before harvest 20 days, standard amount treatment at stone hardening stage compared to control.