• Title/Summary/Keyword: 입상 암면

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pH of Nutrient Solution Affected on the Seedling Growth of Cucumber(Cucumis sativus. L) Plants Grown in Granular Rockwool (입상암면을 이용한 오이 육묘시 상이한 급액산도가 묘소질에 미치는 영향)

  • 문현희;윤점숙;임종극;김홍기;서범석
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1999.11a
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    • pp.141-144
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    • 1999
  • 1970년대에 덴마크에서 원예용 배지로 암면을 사용한 이래 현재 암면은 채소 및 화훼류 양액재배에 있어서 가장 중요한 배지의 하나로 여겨지고 있다(Smith. 1996). 그러나, 이는 주로 판상암면을 의미하는 것으로 이와는 다른 형태인 입상암면은 고려되고 있지 않다. 입상암면은 판상암면과는 달리 입자형태를 하고 있기 때문에 판상암면보다 더 많은 공극을 확보할 수 있으며, 또한 입자내부에는 기존의판상암면과 같은 보습성을 지니고 있기 때문에 새로운 원예용 배지로서 대두되고 있다(Smith. 1996). (중략)

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Growth Characteristics of Hydroponically Grown Melon according to Volume of Granular Rockwool and Substrates of Coir and Rockwool (입상 암면 용량과 코이어 및 암면 배지 종류에 따른 수경재배 멜론의 생육 특성)

  • Dae Ho Jung;Su Hwan Oh;Da Mi Kim;Su Oh Lee;Chul Hee Cho;Hye Won Cho;Chul Kyoo Ha;Hyun-Ah Lee
    • Journal of Bio-Environment Control
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    • v.32 no.1
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    • pp.72-80
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    • 2023
  • Melons, a rich source of vitamins and fibers, are commonly grown in the soil. Hydroponic cultivation could improve yield and quality of melon and selection of substrate volume and the kind of substrates is important for hydroponic cultivation of melons. This study investigated the effect on melon growth according to volume of granular rockwool and substrates of coir and rockwool slab. 'Geumsegye' melon (Cucumis melo L. cv. Geumsegye) was cultivated hydroponically according to volume of granular rockwool to 1.0, 1.5, 2.0, 3.0, and 4.0 L, and was also cultivated using coir and rockwool slabs. Logistic model was applied to estimate the growth characteristics of melons such as plant height, leaf length, leaf width, and the characteristics of fruit. The growth characteristics of melons were significantly increased at 4.0 L compared to those grown of 1.0 L volume of on granular rockwool, and the results were the highest in coir and rockwool slabs. Melons grown in rockwool slabs showed the largest fruit fresh weight, fruit length, and fruit width. During hydroponic cultivation, growth characteristics of melon appropriate at the 4.0 L volume of granular rockwool, and the highest at coir and rockwool slabs. This study provides a basis for understanding the effect of root zone environment to the growth characteristics and fruit quality of non-netted melon.

Growth and Yield of Pepper in Ecologically Sound Substrates (고형배지를 이용한 고추 양액재배)

  • 이용범;노미영;채의석;박소홍;박권우
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1992.12a
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    • pp.17-18
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    • 1992
  • 최근 유럽을 중심으로 암면을 이용한 양액재배가 가장 활기를 띠고 있으나 사용한 암면의 처리가 사회문제로 대두되면서 암면 대체배지 개발이 다방면에서 시도되고 있다. 국내에서도 국내여건에 맞는 양액재배용 배지의 개발이 적극적으로 검토되어야 할 상황으로 판단된다. 따라서 본 연구에서는 그동안 토마토 양액재배용 배지에 대한 검토결과에서 좋은 결과를 보인 입상면, Vermiculite 및 Perlite를 중심으로 하여 유럽에서 검토되고 있는 Polyphenol수지와 국내에서 쉽게 구입할 수 있는 배지들을 모아서 고추 양액재배용 배지로서의 이용가능성을 검토하였다. (중략)

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Physical and Chemical Properties of Coal Fly Ash Ball Substrates, the Salt Accumulation and the Effects of Washing Out Salt with Water (석탄회성형배지(Ash Ball)의 이화학적 특성과 염류집적 및 제거효과)

  • Li, Xian-Ri
    • Journal of Bio-Environment Control
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    • v.10 no.2
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    • pp.88-94
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    • 2001
  • Physical and chemical properties, the salt accumulation and leaching of salt by water of coal fly ash ball (ash ball) were evaluated in comparison with perlite and granule rockwool (rockwool). Bulk density, particle density, solid phase, and porosity of ash ball were 0.93 g.cm$^{-3}$ , 2.29 g.cm$^{-3}$ , 40.6%, 59.4%, respectively. The bulk density of ash ball was greater, while porosity was smaller, than that of perlite and rockwool. Saturation moisture capacity was 52% in ash ball, 71% in perlite, and 90% in rockwool. Water contents after drainage for 1 hr of ash ball, perlite, and rockwool were 21%, 27%, and 80%, respectively. Water content of small granules (3-5 mm) of ash ball was 5% greater than that of large (7-15 mm) grannules. The ash ball was a weak alkali substrate with pH 7.6, but not electric conductivity (EC), of the nutrient solution supplied to ash ball slightly increased. When the absorption of mineral ions to substrates were analyzed, ash ball and RW absorbed mainly PO ̄$_4$. On tomato culture, salt accumulation in ash ball substrate was similar to that in perlite. Most of the salts in the ash balls were removed by submerging the substrate eight times in distilled water. It is concluded that water holding capacity of ash ball substrate was lo as compared to other substrates, but air permeability, and water diffusion was excellent, making control of medium water content easy.

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Growth and Yield Response of Perilla Plants Grown under Different Substrates in Hydroponic System (잎들깨 수경재배에서 배지 종류에 따른 식물 생육 및 수량의 반응)

  • Shin, Minju;Jeong, Ho Jeong;Roh, Mi Young;Kim, Jin Hyun;Song, Kwan Jeong
    • Journal of Bio-Environment Control
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    • v.31 no.4
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    • pp.292-299
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    • 2022
  • This study was conducted to analyze physical and chemical properties of horticultural substrates and response of hydroponically grown two cultivars of 'Namcheon' and 'Somirang' perilla by four different substrates: coir (chip:dust = 5:5), perlite, granular rockwool, and commercial mixed substrate (cocopeat:peatmoss:vermiculite:perlite: zeolite = 50:25:10:10:5). There were no significant differences in EC and pH according to substrates. Container capacity was the greatest in granular rockwool, and it showed appropriate levels in mixed substrate and coir. Air space was higher in coir and perlite than the other treatments. Bulky density reached a proper standard in all substrates excepting coir. The leaf length and width of 'Namcheon' indicated the most in mixed substrate, though the value of 'Somirang'was greatest in coir substrate. The leaf weight of both cultivars was highest in mixed substrate, and relatively low in coir and perlite. The total yield of leaves was separated by two groups: higher group, which are mixed substrate and granular rockwool, and lower group, which are coir and perlite. There was a large gap by 28% between these two groups. Therefore, this study suggests that substrates with high water holding capacity such as mixed substrate or granular rockwool are most suitable for the hydroponic cultivation of perilla, which require sufficient moisture supply to the root zone.

Culture of Potted $Viola{\times}wittrockiana$ 'Majestic GT Scarlet Shadow' in Various Mixtures of Recycled Perlite and CGF in a Mat Subirrigation System (재사용한 펄라이트 및 다공성 CGF의 혼합배지와 매트저면관수를 이용한 분화$Viola{\times}wittrockiana$ 'Majestic GT Scarlet Shadow'의 재배)

  • Kim Gyeong-Hee;Lee Kang-Mo;Jeong Byoung-Ryong
    • Journal of Bio-Environment Control
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    • v.15 no.3
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    • pp.239-243
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    • 2006
  • This research compared growth and flowering of potted $Viola{\times}wittrockiana$ 'Majestic GT Scarlet Shadow' in various mixtures of recycled perlite and cellular glass foam (CGF). The crop was cultured in a mat subirrigation system. Numbers of leaves, opened flowers, flower buds, and branches, fresh and dry weights of shoot, leaf area, and total chlorophyll concentration were the greatest in plants grown in the medium of used perlite + granular rockwool+ peatmoss (25:50:25, v/v/v). Plant height and length of the longest root were the highest and longest, respectively, in plants grown in the medium of CGF+peatmoss (25:75, v/v). The medium of CGF+peatmoss (25:75, v/v) was better than the medium of used perlite+peatmoss (25:75, v/v) in plant growth. The medium of CGF + granular rockwool (25:75, v/v) was poorer than the medium of recycled perlite + granular rockwool (25:75, v/v).

Use of CGF and CCW as Medium Components for Commercial Production of Plug Seedlings of Seogun Tomato (토마토 공정묘의 상업적 생산을 위한 배지구성물질로서 발포유리와 탄화 밤나무 칩의 이용)

  • 황승재;정병룡
    • Journal of Bio-Environment Control
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    • v.13 no.2
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    • pp.81-89
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    • 2004
  • This study was conducted in a commercial plug glasshouse in Sacheon to examine the possibility of producing tomato plug seedlings using various growing media containing cellular glass foam (CGF)and carbonized chestnut woodchips (CCW) as medium components. Plug seedlings of 'Seogun' tomato were grown in media containing 50% CCW+50% peatmoss, 33% CGF+67% peatmoss, and 50% peatmoss+50% granular rockwool. A commercial plug medium (Tosilee) was used as the control. All seeds were sown in 200 cell plug trays on November 28, 2001. Seedling growth was measured at 31 days after sowing. Each treatment showed a similar growth result as compared to the control. Plant height, root grade, fresh weight, and air space and bulk density of the medium were significantly greater in the 33% CGF+67% peatmoss treatment than those in the other media. However, growth was slightly suppressed in the 50% CCW+50% peatmoss. pH and EC of the media were the highest in the control treatment, although no toxicity symptoms had been observed. The results suggest that perlite can be replaced with a new material such as CGF in the commercial scale production of plug seedlings of 'Seogun' tomato.

Effects of the Different Substrates on the Plant Growth and Mineral Contents of Hydroponically Grown Plantago asiatica in Aggregate Culture (배지종류가 추식 수경재배 질경이의 생장과 무기성분 함량에 미치는 영향)

  • Cho, Ja-Yong;Kim, Hong-Gi;Yu, Sung-Oh;Yang, Seung-Yul;Yang, Won-Mo;Kim, Byoung-Woo;Heo, Buk-Gu
    • Journal of Bio-Environment Control
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    • v.16 no.1
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    • pp.40-46
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    • 2007
  • This study was conducted to clarify the effects of the different substrates in terms of perlite (100%), peat moss (100%), granular rock wool (100%) and mixing perlite (50%) with peat moss (50%) on the growth responses and mineral contents of hydroponically grown Plantago asiatic in aggregate culture. Overall early plant growth such as plant height, stem diameter, number of leaves, root length, fresh and dry weight of shoot and root were increased in the order of that miked perlite and peat moss (50%:50%, v/v)>peat moss (100%)>granular rock wool (100%)>perlite (100%). Ca and Mg contents in plants became highest in the plants grown in the peat moss, however, Mg and Na in the granular rock wool. $P_2O_5$ content in plants were most increased in proportion to the plant growth increment in the peat moss (100%) and the mixing substrates of perlite and peat moss (50:50, v/v).

Effects of Ecologically Sound Substrates on Growth and Yield of Tomato(Lycopersicon esculentum Mill.) in Bag Culture (자루재배용 배지종류가 토마토 생육, 수량 및 품질에 미치는 영향)

  • 이용범;박권우;노미영;채의석;박소홍;김수현
    • Journal of Bio-Environment Control
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    • v.2 no.1
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    • pp.37-45
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    • 1993
  • The purpose of this research was to develop ideal substrates for the production of good quality tomatoes in bag culture system and also to improve media with low or no environmental pollution by blending and mixing artificial substrate including peatmoss, perlite, vermiculite, granular rockwool, polyphenol resin foam, bark, and smoked rice hull. The highly efficient media proved by experiments were vermiculite, smoked rice hull, polyphenol resin foam, granular rockwool, and perlite, which showed good results in the early growth as well as the marketable yield of tomato in the bag culture. Tomato plants grown in the media mixed with peatmoss, vermiculite and granular rockwool at the ratio of 3 : 1 : 1(by volume) showed the highest marketable yield, and the next at the ratio of 2 : 1 : 1. The perlite-granular rockwool mixtures at the ratio of 2 : 3 and 1 : 4, and the peatmoss vermiculite mixtures at the ratio of 2 : 3 and 3 : 2, seemed to be promising media for bag culture.

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Effects of the Different Substrates on the Plant Growth and Mineral Contents of Campanula takesimana in Water Culture (배지종류가 추식 수경재배 섬초롱꽃의 생장과 무기성분 함량에 미치는 영향)

  • Cho, Ja-Yong;Kim, Hong-Gi;Yang, Seung-Yul;Son, Dong-Mo;Jang, Hong-Gi;Heo, Buk-Gu;Kim, Chul-Soo
    • Journal of Bio-Environment Control
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    • v.16 no.3
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    • pp.228-232
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    • 2007
  • We have also clarified the effects of the different substrates; (perlite, peatmoss and granular rock-wool) on the plant growth and the mineral contents of Campanula takesimana until 70 days after transplanting. Overall plant growth in terms of plant height, stem diameter, number of leaves, root length, fresh and dry weight of shoot and root were increased in the order of that mixed perlite and peat moss (50 : 50, v/v)>peat moss (100%)>perlite (100%)>granular rock wool (100%). Mineral contents in plants were much more in the order of potassium $(15.38-43.91cmol^+/kg)$, calcium $(5.48-7.78cmol^+/kg)$, magnesium $(4.38-6.55cmol^+/kg)$ and sodium $(1.25-1.69cmol^+/kg)$. The higher mineral contents of plants were also most made in the mixed substrates of perlite and peat moss (50 : 50, v/v).