Effect of N uptake concentration on nitrate leaching from tomato grown in free-draining soilless culture under Mediterranean conditions

Thompson, R.B.; Gallardo, M.; Rodriguez, Jose S.; Sánchez, José González; Magán, J.J.

doi:10.1016/j.scienta.2012.11.018

Cited by 43 publications

(29 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The reduction of the water volume recorded in these closed systems is a great advantage, particularly in areas with scarcity of water such as in the Mediterranean area [29]. Significant removal of NO 3 − in applied water treatments can be related to the more intensive growth of these crops which resulted in a higher uptake of N as reported also by Vymazal [30]. Moreover, the removal of NO 3 − is an additional benefit, especially in the Spanish Southeast, since it is an area classified as a nitrate vulnerable zone in accordance with the European Union Directive [31].…”

Section: Discussionmentioning

confidence: 99%

“…The irrigation with the sequential reuse and blended water treatments (T1 and T2) showed higher pH compared to the control or nutrient solution (T0). The irrigation with the sequential reuse and blended water treatments (T1 and T2) showed lower concentrations of NO 3 − , PO 4 3− and K + compared to the control (T0). The treatment T1 showed the greatest concentration of Cl − , SO 4 2− , Ca 2+ , Mg 2+ and Na + and the highest EC.…”

Section: Chemical Composition Of Water Treatmentsmentioning

confidence: 94%

“…Nearly all soilless cropping systems in the greenhouses of this area are free-draining, also known as "open", systems that drain directly into the underlying soil [2,3]. As a consequence, this horticultural production system generates a high level of pollution in the environment due to the presence of high concentrations of nitrates and phosphorus in the drainages [4].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cascade Cropping System with Horticultural and Ornamental Plants under Greenhouse Conditions

García‐Caparrós

Llanderal

Maksimović

et al. 2018

Water

View full text Add to dashboard Cite

Abstract:The blending of drainage with water of low electrical conductivity and the sequential reuse of the drainage water are innovative technologies to manage salts in agricultural drainage. Plants of Cucumis melo were grown in coir grow bags, and Rosmarinus officinalis and Cacti spp. were grown in pots with a mixture of sphagnum peat-moss and perlite. In order to assess the effect and evolution over time of these water treatments on plant growth and water management and removal of nutrients, three water treatments were applied over a period of eight weeks. These were: (1) standard nutrient solution; (2) blended water treatment (drainage water blended with water of low electrical conductivity (EC)) and (3) sequential reuse of drainage water treatment. During the experimental growing period, samples of water supplies and drainages generated in each water treatment were collected weekly and from these data water volume and nutrient loads were calculated. At the end of the experiment, leaf fresh weight of rosemary plants decreased under the fertigation with the blended and sequential reuse water treatments. Nevertheless, the application of blended and sequentially reused water allowed for the saving of significant amounts of water and nutrients in comparison to the standard nutrient solution treatment. Considering these advantages, we strongly recommend the setting-up of these water treatments in areas with water scarcity such as in the Mediterranean Basin.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Chemical Composition Of Water Treatmentsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cascade Cropping System with Horticultural and Ornamental Plants under Greenhouse Conditions

García‐Caparrós

Llanderal

Maksimović

et al. 2018

Water

View full text Add to dashboard Cite

show abstract

“…Savvas et al [4] found that NH 4 -N concentrations in the drainage solution dropped to nearly zero for all treatments involving the delivery of a part of the total N in the form of NH 4 -N in 23 days after planting and subsequently in the experiment with lettuce in the early spring. And Thompson et al [7] found that the concentration variation tendencies of NO 3 -N and NH 4 -N in the nutrient solution were both similar with an initial decrease to 20 DAT followed by an increase to 20–40 DAT during the phase of rapid early growth for the two spring crops.…”

Section: Resultsmentioning

confidence: 99%

Mode of Managing Nutrient Solution Based on N Use Efficiency for Lettuce (Lactuca sativa L.)

Chabite

Zhang

Ningning

et al. 2017

JFSE

View full text Add to dashboard Cite

In aeroponic cultivation the nutrient solution is an essential component to achieve good production results. And nitrogen is the main constituent element of the nutrient solution and essential element in plant nutrition. Therefore, the management and monitoring nutrient solution and existing nitrogen is fundamental. The experiment shows that three modes of replacing the nutrient solution and three initial pH values and their interaction significantly influenced the fresh weight and dry matter of lettuce. The highest values of fresh and dry weight were recorded in the fifth treatment where there is an interaction between pH 6 and the mode of replacing half of the nutrient solution. The consumption rate of nitrate nitrogen (NO3-N), ammonium nitrogen (NH4-N) and gross nitrogen (GN) was higher during stage 1 (10 days after transplanting), especially for the mode of complete replacing nutrient solution.

show abstract

“…Based on these parameters, the nutrient requirements of tomatoes [46,47], melons [48], and other horticultural crops have been estimated [49,50]. In some cultivation systems, where the supply of fertilizers is practically equal to plant nutrient uptake (i.e., a soilless culture), uptake concentration has been used to simulate the nutrient requirement of horticultural crops to optimize nutrient management in closed and semi-closed cultivation systems [46,51].…”

Section: Simulation Modelsmentioning

confidence: 99%

New Trends in the Fertigation Management of Irrigated Vegetable Crops

2017

View full text Add to dashboard Cite

Abstract:The use of fertigation, coupled with micro-irrigation, has continued to increase since it was first introduced in horticultural cropping systems. This combination provides a technical solution whereby nutrients and water can be supplied to the crop with high precision in terms of time and space, thereby allowing high nutrient use efficiency. However, the correct estimation of crop nutrient and water needs is fundamental to obtaining precise plant nutrition and high nutrient use efficiency in fertigated cropping systems. This paper illustrates the state-of-the-art and new perspectives for optimal nutrient management of vegetable crops cultivated under fertigation regimes. An overall description is reported for the most valuable technologies and techniques based on simulation models, soil testing, plant testing, and related decision support systems that can be adopted for efficient fertigation. However, it should be highlighted that only a few of the above technologies and techniques are practically available and/or easy to use by growers. Therefore, much more attention should be paid in the future to the transfer of research knowledge to farmers and technical advisors.

show abstract

Effect of N uptake concentration on nitrate leaching from tomato grown in free-draining soilless culture under Mediterranean conditions

Cited by 43 publications

References 18 publications

Cascade Cropping System with Horticultural and Ornamental Plants under Greenhouse Conditions

Cascade Cropping System with Horticultural and Ornamental Plants under Greenhouse Conditions

Mode of Managing Nutrient Solution Based on N Use Efficiency for Lettuce (Lactuca sativa L.)

New Trends in the Fertigation Management of Irrigated Vegetable Crops

Contact Info

Product

Resources

About