Changes of Macro and Micronutrients Contents in the Root Environment of Greenhouse Tomato Grown in Fiber Wood

Komosa, A.; Piróg, J.; Kleiber, Tomasz

doi:10.2478/v10032-009-0007-x

Cited by 6 publications

(9 citation statements)

References 6 publications

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“…Depending on the applied solution, the increase of potassium concentration ranged from 23.37% to 39.46%, calcium 38.28%-43.02% and magnesium 12.55%-23.76%. Similar results are presented by KOMOSA et al (2009). A much higher concentration of these elements was reported by BREOE, RUPRIK (2006).…”

Section: Resultssupporting

confidence: 88%

Changes in the chemical composition of the rhizosphere of tomato grown on inert substrates in a prolonged cycle

Jarosz¹,

Michałojć²,

Dzida³

2011

J. Elem.

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The aim of this study, conducted in 2005-2007, was to determine changes in the chemical composition of extracts from the rhizosphere of tomatoes and of drainage water in tomato culture set up on rockwool, perlite and expanded clay and nourished with one of the two nutrient solutions containing different concentrations of macronutrients (EC I: 2.4 mS cm-1 and EC II: 3.6 mS cm-1). Perlite and extended clay were placed in foil sleeves, whose shape and volume corresponded to the weight of rockwool. The tomatoes were grown with a dripping fertilization system and a closed nutrient solution circulation system, without recirculation, for watering. The solution supply frequency, controlled by a soltimer, depended on the intensity of solar radiation. The concentration and proportions of macronutrients in the nutrient solutions were adjusted to the requirements of particular developmental phases of the plants, in accordance with the current recommendations. The plants were grown in a prolonged cycle for 22 clusters (from the beginning of February to mid-October). Extracts from the rhizosphere and drainage water for analyses were sampled at a set time of the day, every four weeks, since the plants were placed on the mats. The analysis of the results revealed significantly more nitrate ions, phosphorus, potassium, calcium, magnesium, sulphates and sodium in extracts from the rhizosphere and in drainage waters sampled from treatments fertilized with the concentrated solution (EC II), compared to the basic solution. In the drainage water from treatments fertilized with a solution of the basic macronutrient composition (EC I), the increase of ion concentrations appeared in the following order: N-NH 4 > P-PO 4 > Ca > S-SO 4 > K > N-NO 3 > Mg, whereas in the drainage water flowing from the treatments fertilized with the solution containing 25% more macronutrients (EC II), the ion concentration range was as follows: N-NH 4 > P-PO 4 > Ca > N-NO 3 > S-SO 4 > K > Mg. In the present study, the sodium content in drainage water was depressed compared to the nutrient solution dosed under plants with either of the two liquid feeds.

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Section: Resultssupporting

confidence: 88%

Changes in the chemical composition of the rhizosphere of tomato grown on inert substrates in a prolonged cycle

Jarosz¹,

Michałojć²,

Dzida³

2011

J. Elem.

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“…In addition, except on the day of transplant, the EC of the 100BC-0SD substrate solution was higher than that of the fertigation solution on the every occasion that measurements were taken over the first 21 d after transplant. High substrate solution EC relative to fertigation solution EC has been observed with other substrate materials, and is often due to poor flushing of excess nutrients from substrates through inadequate fertigation applications (Komosa et al, 2009). It is possible that the greater WHC of the biochar, relative to the sawdust, may have resulted in reduced drainage from substrate modules containing biochar.…”

Section: Discussionmentioning

confidence: 99%

“…However, VWC was measured at different times of day and at varying intervals after fertigation. Substrate solution was extracted directly from the substrate modules on the day that seedlings were transplanted, and 7, 14, 21, 35, 69, and 110 d after transplant following a modified version of the method used by Komosa et al (2009). The extraction was conducted using a 100-mL syringe with a 100-mm needle attached after all substrate modules had finished draining following fertigation.…”

Section: Methodsmentioning

confidence: 99%

Closing the Loop: Use of Biochar Produced from Tomato Crop Green waste as a Substrate for Soilless, Hydroponic Tomato Production

Dunlop¹,

Arbestain²,

Bishop³

et al. 2015

horts

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Greenhouse tomato (Lycopersicum esculentum Mill.) producers are urged to reduce their environmental footprint. Here, the suitability of biochar produced from tomato crop green waste as a substrate for soilless, hydroponic tomato production was evaluated. Substrates containing different combinations of biochar (BC) and pine (Pinus radiata D. Don) sawdust (SD) were produced (BC0-SD100, BC25-SD75, BC50-SD50, BC75-SD25, and BC100-SD0) and characterized. The effect of these substrates on tomato growth, yield, and fruit quality was studied. Most of the measured properties of substrates containing biochar were suited to use as a soilless substrate. The electrical conductivity (EC) of substrates containing biochar was initially high (>4.6 mS·cm−1), but was easily reduced to <0.5 mS·cm−1 by rinsing with water before use. The pH of substrates containing biochar was higher than is considered acceptable for tomato production (7.5–9.3) but did not significantly (P < 0.05) affect any plant growth, yield, and fruit quality indicators measured compared with those of plants grown in pine sawdust. The results support the concept of creating a closed loop system whereby biochar produced from tomato crop green waste is used as a substrate for soilless, hydroponic tomato production, providing a sustainable means to support the growth of high-value food crops.

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“…The compounds contained in the overflow, while moving throughout the ground, penetrate the groundwater and pollute it. This hinders its use for fertigation purposes and in many other economic sectors, as well as in supplying drinking water [1,13]. This has resulted in the need to find the best economic and ecological solutions, enabling a reduction in the amount of biogenic compounds introduced into the environment through drainage water from soilless crop cultivation.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Wastewater Generated in Greenhouse Soilless Tomato Cultivation in Central Europe

Mielcarek

Rodziewicz

Janczukowicz

et al. 2019

Water

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Soilless plantations under cover constitute a significant part of horticulture. This study aimed at determining the qualitative composition of wastewater generated from the soilless cultivation of tomato under cover. This is important for managing the wastewater, which may be recirculated to allow the or employ a partial or complete recovery of minerals. Two plantations located in north-eastern Poland, which differed in the type of substratum (coconut fiber or rockwool), were studied. The generated wastewater was characterized by a low content of organic matter and a high concentration of total nitrogen (TN), total phosphorus (TP), and salinity (EC). Over 99% of the TN was constituted by nitrates. The chemical oxygen demand (COD) changed from 50.07 to 75.82 mgO 2 ·L −1 (greenhouse 1), and from 37.35 to 78.12 mgO 2 ·L −1 (greenhouse 2); the content of TN changed from 403.59 to 614.89 mgN·L −1 (greenhouse 1), and from 270.00 to 577.40 mgN·L −1 (greenhouse 2); that of TP changed from 35.44 to 78.00 mgP·L −1 (greenhouse 1), and from 54.10 to 104.00 mgP·L −1 (greenhouse 2); and the EC changed from 3.53 to 6.93 mS·cm −1 (greenhouse 1), and from 4.94 to 6.94 mS·cm −1 (greenhouse 2). No statistically significant correlations were noted between TN and TP, or between TP and EC.

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Changes of Macro and Micronutrients Contents in the Root Environment of Greenhouse Tomato Grown in Fiber Wood

Cited by 6 publications

References 6 publications

Changes in the chemical composition of the rhizosphere of tomato grown on inert substrates in a prolonged cycle

Changes in the chemical composition of the rhizosphere of tomato grown on inert substrates in a prolonged cycle

Closing the Loop: Use of Biochar Produced from Tomato Crop Green waste as a Substrate for Soilless, Hydroponic Tomato Production

Analysis of Wastewater Generated in Greenhouse Soilless Tomato Cultivation in Central Europe

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