The Growth of &lt;i&gt;Chrysanthemum morifolium&lt;/i&gt; according to the Mixing Ratio of Superabsorbent Polymer

Kwon, Young Hyun; Oh, Si Young; Yang, Seung Hyuk; Kong, Seung Mo; Na, Yang Ho; Rhie, Yong Ha

doi:10.11623/frj.2022.30.4.01

Cited by 2 publications

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“…Key words: Capillary porosity, Cation exchangeable capacity (CEC), Saturated hydraulic conductivity, Super absorbent polymer (SAP) 서 론 작물재배에서 수분은 농업생산성을 높이는 가장 중요한 요 인이다 [1]. 최근 기상이변과 기후변화는 농업적 가뭄의 발생으 로 이어져 [2] 농업용수의 부족현상을 나타내고 [3], 농작물의 생산량과 품질에 많은 영향을 미치므로 작물 재배에서 작물의 생육을 유지하고 생산성을 높이기 위해서는 수분관리가 매우 중요하다 [4]. 골프장은 답압의 피해를 감소시키기 위해 모래를 토양으로 이용하고 있어 보수력이 약하여 건조피해가 나타나 기 쉬우므로 재배에 필요한 수분관리가 필요하다 [5].…”

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“…SAP는 상당한 흡수력과 함께 흡수된 용액이 다소의 압력 하 에서도 쉽게 방출되지 않는 특성을 지니고 있으므로 이를 적 절히 이용한다면 작물 재배 시 상당한 관수절감효과를 기대할 수 있을 것이다 [4,14]. 특히 건조한 환경에서 토양의 수분 보유 능력을 증가시키고 작물이 사용할 수 있는 물의 공급을 조절 함으로써 생육 및 활착을 개선하는 것으로 알려져 있다 [15].…”

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“…특히 건조한 환경에서 토양의 수분 보유 능력을 증가시키고 작물이 사용할 수 있는 물의 공급을 조절 함으로써 생육 및 활착을 개선하는 것으로 알려져 있다 [15]. SAP는 국화(Chrysanthemum) 재배에서 처리량에 따라 관 수량이 감소하였고 [4], 배추(Brassica rapa L.)에서는 토양 보 수력의 중대로 생육 및 양분 흡수량이 증대되었으며 [16], SAP 를 상토의 혼용재료로 사용하는 경우 혼합 상토의 보수성이 개선되었다 [17]…”

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Enhancement of Soil Physicochemical Properties by Blending Sand with Super Absorbent Polymers of Different Swelling Capacities

Kim¹,

Kim²,

Kim³

et al. 2023

Korean Journal of Environmental Agriculture

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Super absorbent polymers (SAPs) are hydrophilic molecules that can absorb large amounts of water. This study was conducted to investigate the enhancement of the physicochemical properties of sand soil blended with three SAPs imbibed with 100, 150, and 200-fold water. Three treatments were applied, namely, 100SAP, 150SAP, and 200SAP. The three SAPs were blended at concentrations of 0% (control), 3%, 5%, 7%, and 10% with sand.The pH, electrical conductivity, and cation exchangeable capacity (CEC) of soil blended with the three SAPs were pH 6.35-6.46, 0.09-0.65 dS/m, and 1.42-1.92 cmol c /kg, respectively, and their capillary porosity, total porosity, and saturated hydraulic conductivity were 21.0-29.3%, 39.2-48.7%, and 272-470 mm/hr. CEC, capillary porosity, total porosity, and saturated hydraulic conductivity of soil were positively correlated with the ratio of the SAPs (p<0.01). These results indicate that blending sand soil with SAPs increased CEC, capillary porosity, and saturated hydraulic conductivity, thus improving the nutrient-retention capacity, water-retention capacity, and permeability of the soil.

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Enhancement of Soil Physicochemical Properties by Blending Sand with Super Absorbent Polymers of Different Swelling Capacities

Kim¹,

Kim²,

Kim³

et al. 2023

Korean Journal of Environmental Agriculture

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Assessment of Adequate Volumetric Water Content for Managing <italic>Farfugium japonicum</italic> (L.) Kitam. in the Indoor Gardens

Park,

Kwon

et al. 2023

J. People Plants Environ

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Background and objective: The present research study aimed to investigate the optimum substrate volumetric water content (VWC) needed for Farfugium japonicum (L.) Kitam. to maintain its performance in the indoor garden.Methods: The threshold levels of substrate VWC were evaluated as 0.1, 0.2, 0.3 or 0.4 m3⋅m-3 using an automated irrigation system with capacitance soil moisture sensors and datalogger. Plant growth and physiological responses were measured and analyzed at 10 weeks after treatment. Plant growth was investigated by measuring survival rate, plant height, leaf length, leaf width, leaf number, root length, fresh and dry weight of shoot and root. Physiological responses were observed by analyzing antioxidant enzymes (SOD, POD) and antioxidants (MDA, proline), maximum quantum yield (Fv/Fm) and total chlorophyll contents.Results: The results of drought tolerance measurement by the treatment group showed that the overall growth was the highest in the 0.3 and 0.4 m3⋅m-3 treatment plot and the lowest in the 0.1 m3⋅m-3 treatment plot. Under the droughtstressed condition of the 0.2 m3⋅m-3 treatment, growth was not as efficient as the 0.3 and 0.4 m3⋅m-3 treatments due to the relatively higher moisture content, but there was no statistical difference between the 0.3 and 0.4 m3⋅m-3 treatments in the maximum quantum yield (Fv/Fm) and also total chlorophyll content. Furthermore, for antioxidant activities, SOD, POD, and MDA showed high values, but no statistical differences were found among treatments except for the 0.1 m3⋅m-3 treatment, which was under severe drought stress in terms of proline.Conclusion: Overall, the results indicate that Farfugium japonicum (L.) Kitam., has a tolerance to drought, and for managing indoor gardens the adequate soil moisture content for the growth is at least 0.2 m3⋅m-3 assuming the use of identical substrate in this experiment.

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The Growth of <i>Chrysanthemum morifolium</i> according to the Mixing Ratio of Superabsorbent Polymer

Cited by 2 publications

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Enhancement of Soil Physicochemical Properties by Blending Sand with Super Absorbent Polymers of Different Swelling Capacities

Enhancement of Soil Physicochemical Properties by Blending Sand with Super Absorbent Polymers of Different Swelling Capacities

Assessment of Adequate Volumetric Water Content for Managing <italic>Farfugium japonicum</italic> (L.) Kitam. in the Indoor Gardens

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The Growth of <i>Chrysanthemum morifolium</i> according to the Mixing Ratio of Superabsorbent Polymer

Cited by 2 publications

References 0 publications

Enhancement of Soil Physicochemical Properties by Blending Sand with Super Absorbent Polymers of Different Swelling Capacities

Enhancement of Soil Physicochemical Properties by Blending Sand with Super Absorbent Polymers of Different Swelling Capacities

Assessment of Adequate Volumetric Water Content for Managing &lt;italic&gt;Farfugium japonicum&lt;/italic&gt; (L.) Kitam. in the Indoor Gardens

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Assessment of Adequate Volumetric Water Content for Managing <italic>Farfugium japonicum</italic> (L.) Kitam. in the Indoor Gardens