A Study on the Physical and Hydraulic Characteristics of Cocopeat Perlite Mixture as a Growing Media in Containerized Plant Production

Ilahi, Wan Fazilah Fazlil; Ahmad, Desa

doi:10.17576/jsm-2017-4606-17

Cited by 26 publications

(9 citation statements)

References 25 publications

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“…Hence, mixing different particle sizes and ratios together or adding other materials is recommended to meet crop-specific moisture and aeration requirements in order to use coir products as stand-alone substrates. For instance, adding perlite to coir improved the physical and hydraulic characteristics of the media, such as total porosity and wettability, by manipulating the porosity and capillarity [135]. However, while coir products can make excellent growing media, the long transportation distance makes this alternative less attractive for many areas, such as Northern Europe and North America (see Section 2.3.2. for more information).…”

Section: Greenhouse Vegetable Productionmentioning

confidence: 99%

Increasing Sustainability of Growing Media Constituents and Stand-Alone Substrates in Soilless Culture Systems

2019

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Decreasing arable land, rising urbanization, water scarcity, and climate change exert pressure on agricultural producers. Moving from soil to soilless culture systems can improve water use efficiency, especially in closed-loop systems with a recirculating water/nutrient solution that recaptures the drain water for reuse. However, the question of alternative materials to peat and rockwool, as horticultural substrates, has become increasingly important, due to the despoiling of ecologically important peat bog areas and a pervasive waste problem. In this paper, we provide a comprehensive critical review of current developments in soilless culture, growing media, and future options of using different materials other than peat and rockwool. Apart from growing media properties and their performance from the point of view of plant production, economic and environmental factors are also important. Climate change, CO 2 emissions, and other ecological issues will determine and drive the development of soilless culture systems and the choice of growing media in the near future. Bioresources, e.g., treated and untreated waste, as well as renewable raw materials, have great potential to be used as growing media constituents and stand-alone substrates. A waste management strategy aimed at reducing, reusing, and recycling should be further and stronger applied in soilless culture systems. We concluded that the growing media of the future must be available, affordable, and sustainable and meet both quality and environmental requirements from growers and society, respectively.

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Section: Greenhouse Vegetable Productionmentioning

confidence: 99%

Increasing Sustainability of Growing Media Constituents and Stand-Alone Substrates in Soilless Culture Systems

2019

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“…Also, the incorporation of perlite increases aeration and avoids saturation in SIP. Therefore, this mixture constitutes an optimum growing media to keep water and air available over the course of the growing season [26]. In addition, SIP systems use water very efficiently, as direct evaporation from the soil surface is considerably reduced and water is not lost in drainage.…”

Section: Discussionmentioning

confidence: 99%

Growth, Yield, and Water Productivity Responses of Pepper to Sub-Irrigated Planter Systems in a Greenhouse

et al. 2020

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A sub-irrigated planter (SIP) is a container irrigation technique in which water is supplied to the crop from the bottom, stored in a saturated media-filled reservoir beneath an unsaturated soil, and then delivered by capillary action to the root zone. The aim of this study was to optimize the water management and to assess the performance of this technique in terms of water use efficiency, soil moisture, and solute distribution in comparison with surface irrigation in a Mediterranean greenhouse. The experiment consisted of four SIP treatments, with a constant water level in the bottom reservoir in order to evaluate the effect of two different irrigation salinities (1.2 and 2.2 dS m−1) and two depths of substrate profiles (25 and 15 cm). The results showed that SIP is capable of significantly improving both water-use efficiency and plant productivity compared with surface irrigation. Also, a 24% average reduction in water consumption was observed while using SIP. Moreover, SIPs with a higher depth were recommended as the optimum treatments within SIPs. The type of irrigation method affected the salinity distribution in the substrate profile; the highest salinity levels were registered at the top layers in SIPs, whereas the maximum salinity levels for the surface treatments were observed at the bottom layers. SIPs provide a practical solution for the irrigation of plants in areas facing water quality and scarcity problems.

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“…They revealed that cocopit and perlite 3:1 proportion mixture have acceptable porosity level of 79 % which is adequate for the root gas exchanges between the root zone and the environment. Wan et al [17] also worked out water holding capacity and was found 912.54 % of dry weight of mixture. They stated that increased cocopit in growing media increases the water holding capacity and low value of hydraulic conductivity (0.1 cm s -1 ) indicates mixture can hold water for much longer time in the particles.…”

Section: Physical and Chemical Properties Of Individual And In Combinmentioning

confidence: 99%

“…Reshma and Salikutty [16] concluded better performance of plants in cocopit medium may be due to its higher water holding capacity, aeration and high potassium content, light weight and high total porosity of 94 per cent. Wan et al [17] studied the physical characteristics of 3 cocopit: 1 perlite mixture (by volume). They found most of the mixture particles were in the range between 0.425 to 4 mm in diameter (82.93%).…”

Section: Physical and Chemical Properties Of Individual And In Combinmentioning

confidence: 99%

“…The wettability determines the aptitude of a material to reduce the surface tension of water in contact with the material so that it can wet and spread over the surface. From the experiment conducted by Wan et al [17] observed for first 2 hour of soaking, the media absorbed water drastically until it reached a peak of water content 119 ml. After 2 hour, water content was increased slowly.…”

Section: Physical and Chemical Properties Of Individual And In Combinmentioning

confidence: 99%

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Hydroponic Growth Media (Substrate): A Review

Patil

Kadam

Mane³

et al. 2020

IRJPAC

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From the reviewed literature, it is observed that scientist’s worked on the various substrate medias used for hydroponic system. They also studied about different combinations of the media and their effect on crop growth. The reviewed literature shows that scientists have studied different organic and inorganic media viz. cocopit, saw dust, rice husk vermiculite, perlite, hydroton, pumice, sand etc. It was also found that these media are not easily, cheaply and locally available for users. Beside this, few scientists studied about physical and chemical properties of media such as particle size, porosity, bulk density, wettability, water holding capacity (WHC), Air filled porosity (AFP), Electrical conductivity, pH of these media. The crop specific suitability of combinations of the different media mixtures were also tested and reported by many scientists. It was revealed from reviewed literature that salinity of media caused linear reduction in the water consumption. The size and shape of particle size distribution are useful for estimating the hydraulic properties of the media The substrate under long cultivation period causes increase of organic matter content and microorganism activity which leads to an increased competition for oxygen in the root environment. The optimal EC levels range from 1.5 to 4.0 dSm-1 according to crop and its sensitivity to different salinity levels. It was also observed that level of growing medium temperature close to that of the surrounding air seems more suitable. The ideal substrate should have a total porosity of over 85 percent. Particles of smaller-sized individual grains have a larger specific surface area.

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A Study on the Physical and Hydraulic Characteristics of Cocopeat Perlite Mixture as a Growing Media in Containerized Plant Production

Cited by 26 publications

References 25 publications

Increasing Sustainability of Growing Media Constituents and Stand-Alone Substrates in Soilless Culture Systems

Increasing Sustainability of Growing Media Constituents and Stand-Alone Substrates in Soilless Culture Systems

Growth, Yield, and Water Productivity Responses of Pepper to Sub-Irrigated Planter Systems in a Greenhouse

Hydroponic Growth Media (Substrate): A Review

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