Nutrient Mobility and Availability with Selected Irrigation and Drainage Systems for Vegetable Crops on Sandy Soils

Sato, Shuko; Morgan, Kelly T.

doi:10.5772/31208

Cited by 5 publications

(2 citation statements)

References 49 publications

(53 reference statements)

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“…However, significant differences in root characteristics were still evident in the present study (Figures 2 and 3), and the soil volume was sufficient to prevent typical "pot effects" (Hohmann et al, 2016). When interpreting the soil nutrient balances (Figure 6), it should be considered that several factors in the study design might have contributed to nutrient translocation from the topsoil to deeper soil layers: First, irrigation was provided twice a week to keep soil moisture at ≥ 50% WHC, thereby supporting nutrient mobility (Mengel & von Braunschweig, 1972;Sato & Morgan, 2012). Moreover, soil moisture is important for cation exchange processes (Brown, 1953), which, depending on clay minerology, could have reduced CAL-extractable K concentrations in the topsoil due to K fixation (Askegaard et al, 2004).…”

Section: Methodsmentioning

confidence: 74%

Nutrient uptake of catch crops under non‐limiting growth conditions

Selzer

Schubert

2021

J. Plant Nutr. Soil Sci.

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Background: Catch crops enhance nutrient cycling of cropping systems. Considering possible limitations of catch crop studies in field and greenhouse experiments, a new approach was chosen to combine the advantages of both systems in quantifying the potential for nutrient retention by catch crops. Aims:This study aimed at identifying N, P, and K uptake of different catch crop species grown in monoculture and as a mixture under non-limiting growth conditions in terms of water and nutrient availability.Methods: Catch crops were cultivated under semi-controlled conditions in large containers (August to November 2020). Shoot N, P, and K uptake, leachate accumulation, and soil N min , CAL-P, and CAL-K (0-30 cm) were quantified after harvest. After washing, root parameters were quantified with a root scanner.Results: Nutrient uptake of N, P, and K was highest for phacelia. The mixture of seven different catch crops performed equally well. Nutrient uptake was closely related to root length and root surface area.Conclusions: Under non-limiting growth conditions, phacelia has the highest potential to conserve N, P, and K for a succeeding crop; however, the low C : N ratio of the frostsensitive crop could promote nutrient losses during winter. We conclude that growing a single catch crop can be as effective in reducing the nutrient leaching potential as cultivating a mixture of catch crops when nutrients and water are no growth-limiting factors.

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Section: Methodsmentioning

confidence: 74%

Nutrient uptake of catch crops under non‐limiting growth conditions

Selzer

Schubert

2021

J. Plant Nutr. Soil Sci.

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“…Unlike in other production systems where water and nutrient availability fluctuate, the nutrient gradient system allows for vegetable crops roots to have a constant access to water and nutrients (Sato and Morgan 2012).…”

Section: The Nutrient Gradient Systemmentioning

confidence: 99%

Advances in Research on Fertilization Management of Vegetable Crops

Tei¹,

Nicola²,

Benincasa³

2017

Advances in Olericulture

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The book series Advances in Olericulture provides a state-of-the-art account of research in olericulture, the applied life science of production and utilization of vegetable crops. The series focuses on various aspects of vegetable science and technology covering primarily but not exclusively species where the vegetative organ is the economically important component. The series of books spans current topics from sustainable fertilization to organic production; from open field cultivation to advanced soilless growing techniques; from vegetable seed and seedling physiology to vegetable quality and safety; from environmental stresses to phyllosphere communities interaction with vegetables; from postharvest biology and technology to minimally processing of vegetables. The series is designed to present the most advanced scientific information available linking basic and applied research for serving olericulturists, research workers, teachers and advanced students.More information about this series at

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