Effect of Aquasorb and Organic Compost Amendments on Soil Water Retention and Evaporation with Different Evaporation Potentials and Soil Textures

Taban, M.; Naeini, S. A. R. Movahedi

doi:10.1080/00103620600770383

Cited by 28 publications

(19 citation statements)

References 31 publications

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“…hydrophilic polymer는 1970 년대 초부터 식물에 이용되기 시작하였으며, 토양의 보 수력 증진효과가 규명되면서 토양구조 안정 및 보수력 증진에 활용되고 있다 (Wallace and Abouzamzam, 1986). 특히, 건조한 사질토의 수분보유력을 높임으로써 식물의 활착과 성장을 촉진할 뿐 아니라 (Taban and Movahedi, 2006), 생산량을 증가시키는 것으로 보고되 었다 (Ali, 2011) (Roh, 2008). 또한, 전 세계에서 가장 많이 생산하는 채소 중 하 나로 (Giuseppe et al, 2010) (Kang et al, 2005 growth index)는 (초폭1)+(초폭2) /2+초장)/2의 산 정식으로 계산하였다 (Hammond et al, 2007) (Monterusso et al, 2005).…”

Section: 서 론unclassified

Growth Responses of Eggplant (Solanum melongena) to Hydrophilic Polymer Mixture Ratio in Growing Medium for Lower Maintenance Urban Agriculture via Green Roofs

Ju¹,

Kim²,

Xu³

et al. 2016

J. Environ. Sci. Int.

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This study was conducted to investigate the influence of hydrophilic polymer (HP) mixture ratio (Control, 1.0%, 2.5%, 5.0%, and 10.0%) on growth of eggplant (Solanum melongena) for lower maintenance urban agriculture via green roofs. Although it was not statistically significant (p > 0.05), substrate temperature was decreased as hydrophilic polymer mixture ratio were increased. High substrate water content (95%) was found consistently in growing media under elevated hydrophilic polymer mixture ratio at over 5% during the entire growing period. Substrate electronic conductivity was increased as hydrophilic polymer mixture ratio were increased. Growth index was decreased as hydrophilic polymer mixture ratio was increased. It was reduced about 1/3 and 1/5 compared to that of Control in HP5.0 and HP10.0 treatment plants, respectively. Number of leaves, leaf length, and leaf width were decreased in following order: Control> HP1.0> HP2.5> HP5.0> HP10.0 treatments. There numbers were significantly lower in HP5.0 and HP10.0 treatment plants. Dry weight of shoot and root were decreased as hydrophilic polymer mixture ratio was increased. They were reduced by 1/4 compared to those of Control treatment plants. In addition, visual value was decreased as hydrophilic polymer mixture ratio was increased. Plants grown in HP1.0, HP2.5, and HP5.0 treatments all survived. However, plants grown in the HP10.0 treatment had the lowest survival rate (56%) after 3 months of growing. These results indicate that the advantage of adding hydrophilic polymer to green roof growing media may greater during dry periods. However, the proper mixture proportion of hydrophilic polymer should be determined according to different characteristics of growing media and plant species.

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Section: 서 론unclassified

Growth Responses of Eggplant (Solanum melongena) to Hydrophilic Polymer Mixture Ratio in Growing Medium for Lower Maintenance Urban Agriculture via Green Roofs

Ju¹,

Kim²,

Xu³

et al. 2016

J. Environ. Sci. Int.

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“…The swellability of ANT-12 was affected by TDS values, salinity of irrigated water 55,56 and the operation of soil pressure on it. At high applied load on ANT-12, the degree of swellability decreased in any medium and this could be attributed to shrinkage of polymer network.…”

Section: Limitations Of Ant-12 Under Field Applicationsmentioning

confidence: 99%

Synthesis and evaluation of trimethylolpropane triacrylate crosslinked superabsorbent polymers for conserving water and fertilizers

Venkatachalam¹,

Vijayakumar²,

gounder³

2013

J of Applied Polymer Sci

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“…이는 토양수분변화의 폭이 급변하는 옥상녹화에서 식재지반 내 빗물을 재 활용할 수 있는 방안임을 시사하고 있다. 또한, 건조한 사질토에서 수분보유력을 높임으로써 식물의 활착과 성장을 촉진할 뿐 아니라 (Taban, 2006;Zeineldin과 Aldakheel, 2006), 생산량을 증가시키는 것으로 보고 되었다 (Ali, 2011;Silberbush 등, 1993) (Koupai 등, 2008).…”

Section: 서 론1 )unclassified

Utility of Hydrophilic Polymer for Green Technology Development in Green Roofs Using Rainwater

Ju¹,

Yang²,

Yoon

2012

Journal of Environmental Science International

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Hydrophilic polymer is suitable as soil conditioners for green roofs that use rainwater, due to promotion of water retention capacity as well as enhancement of the water absorbing capacity. The objective of the present study was to investigate the effects of different levels of hydrophilic polymer concentrations (0, 0.1, 0.2, 0.4, 0.8% w/w) on the water holding capacity and growth response of 6 species in soils amended with hydrophilic polymer in 5 cm of soil thickness on green roofs. The results showed that the water holding capacity of the amended soil improved with increasing amount of applied polymer. The application of 0.8% w/w of the polymer increased the soil moisture by 87% compared to the control, and decreased slowly in green roofs during an arid period. The growth of Sedum spurium 'Dragon's blood' and Lampranthus spectabilis increased significantly and had greater than 60% relative coverage with higher hydrophilic polymer concentrations. However, Juniperus chinensis var. sargentii and Euonymus fortunei var. radicans had no significant differences upon change of hydrophilic polymer concentrations. In Carex kujuzana and Carex morrowii 'Aurea variegata', growth decreased with increase of hydrophilic polymer concentrations. 30 days after planting, Juniperus chinensis var. sargentii, Euonymus fortunei var. radicans, Carex kujuzana, and Carex morrowii 'Aurea variegata' died back due to lowest soil thickness (5 cm), but Sedum spurium 'Dragon's blood' and Lampranthus spectabilis had greater than 90% survival.

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Effect of Aquasorb and Organic Compost Amendments on Soil Water Retention and Evaporation with Different Evaporation Potentials and Soil Textures

Cited by 28 publications

References 31 publications

Growth Responses of Eggplant (Solanum melongena) to Hydrophilic Polymer Mixture Ratio in Growing Medium for Lower Maintenance Urban Agriculture via Green Roofs

Growth Responses of Eggplant (Solanum melongena) to Hydrophilic Polymer Mixture Ratio in Growing Medium for Lower Maintenance Urban Agriculture via Green Roofs

Synthesis and evaluation of trimethylolpropane triacrylate crosslinked superabsorbent polymers for conserving water and fertilizers

Utility of Hydrophilic Polymer for Green Technology Development in Green Roofs Using Rainwater

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