Effect of soil heating on the dynamics of soil available nutrients in the rhizosphere

Moritsuka, Naoki; Yanai, Junta; Kosaki, Takashi

doi:10.1080/00380768.2001.10408396

Cited by 19 publications

(19 citation statements)

References 25 publications

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“…Each compartment was separated by nylon mesh clothes with a mesh size of lOX 10 /Lm. Detailed description of the rhizobox is available in the report of Moritsuka et al (2000). The FH, FL, and AH soils were filled in all the compartments of the rhizobox to reach a bulk density of 1.03, 1.03, and 0.61 g cm-3 in the rhizoboxes, respectively.…”

Section: Methodsmentioning

confidence: 99%

Distribution and forms of cadmium on the rhizosphere ofBrassica junceain Cd-contaminated soils and implications for phytoremediation

Yanai

Mabuchi

Moritsuka

et al. 2004

Soil Science and Plant Nutrition

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Section: Methodsmentioning

confidence: 99%

Distribution and forms of cadmium on the rhizosphere ofBrassica junceain Cd-contaminated soils and implications for phytoremediation

Yanai

Mabuchi

Moritsuka

et al. 2004

Soil Science and Plant Nutrition

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“…Another important issue when studying plant nutrition is the length of the cultivation time. In most studies, short-time experiments were conducted (17 days, Moritsuka et al, 2000;18 days, Gaume et al, 2001;35 days, Watt and Evans, 2003;42 days, Cu et al, 2005), whereas longer time scales, were used only in a few cases (from 57 to 64 days, Braume and Helmke, 1995; from 127 to 224 days, Bolland, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…The use of sand cultures (Liu et al, 2001) and mixtures of sand and soil (4:1, Cu et al, 2005;1:1, Watt and Evans, 2003) constituted the next step, with a solid substrate but still quite far away from field conditions. A further important progress was to work with a whole soil matrix, and this was performed by using several experimental designs like rhizoboxes (Moritsuka et al, 2000), small pots filled with 450-800 g soil (Braume and Helmke, 1995) and plastic bags containing around 4 kg soil (Wouterlood et al, 2004). Larger experimental pots made of 10-cm diameter PVC pipe and 60-cm tall were used by Cavigelli andThien (2003), andBolland (1997) worked in the field on plots 1.4 m wide and 5 m long.…”

Section: Introductionmentioning

confidence: 99%

Soil Phosphorus Uptake by Continuously Cropped Lupinus albus: A New Microcosm Design

et al. 2006

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When grown in soils with sparingly available phosphorus (P), white lupin (Lupinus albus L.) forms special root structures, called cluster roots, which secrete large amounts of organic acids and concomitantly acidify the rhizosphere. Many studies dealing with the understanding of this P acquisition strategy have been performed in short time experiments either in hydroponic cultures or in small microcosm designs with sand or sand:soil mixtures. In the present study, we applied an experimental design which came nearer to the natural field conditions: we performed a one-year experiment on large microcosms containing 7 kg of soil and allowing separation of rhizosphere soil and bulk soil. We planted six successive generations of lupins and analysed P uptake, organic P desorption, phosphatase activities and organic acid concentrations in different soil samples along a spatio-temporal gradient. We compared the rhizosphere soil samples of cluster (RSC) and non-cluster roots (RSNC) as well as the bulk soil (BS) samples. A total shoot biomass of 55.69 ± 1.51 g (d.w.) y )1 was produced and P uptake reached 220.59 ± 5.99 mg y )1 . More P was desorbed from RSC than from RSNC or BS (P < 0.05). RSC and RSNC showed a higher activity of acid and alkaline phosphatases than BS samples and a higher acid phosphatase activity was observed in RSC than in RSNC throughout the one-year experiment. Fumarate was the most abundant organic acid in all rhizosphere soil samples. Citrate was only present in detectable amounts in RSC while malate and fumarate were recovered from both RSC and RSNC. Almost no organic acids could be detected in the BS samples. Our results demonstrated that over a one-year cultivation period in the absence of an external P supply, white lupin was able to acquire phosphate from the soil and that the processes leading to this P uptake took place preferentially in the rhizosphere of cluster roots.

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“…Physico-chemical processes between soil and roots generally differ from the processes outside the rhizosphere (Darrah 1993). Changes in nutrient dynamics in the plant rhizosphere were intensively studied for phosphorus (Gahoonia and Nielsen 1992, Zoyza et al 1997), nitrogen, potassium, calcium and magnesium (Moritsuka et al 2000). There are however limited data on S fractionation in the rhizosphere (Han and Yoshida 1982, Hu et al 2002.…”

mentioning

confidence: 99%

Crop influence on mobile sulphur content and arylsulphatase activity in the plant rhizosphere

Kotková¹,

Balík²,

Černý³

et al. 2008

PLANT SOIL ENVIRON

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The changes of mobile sulphur (S) contents were investigated in the plant rhizosphere using precise model experiments with rhizoboxes. The tested plants were winter wheat (Triticum aestivum L.), winter rape (Brassica napus L.) and white lupine (Lupinus albus L.). In this experiment, a Cambisol from a precise field experiment treated with sewage sludge or manure was used. Total extractable S concentration and mineral S (S-SO 4 2-) concentration in the water extract were higher in the plant rhizosphere (< 6 mm from the root) compared to the so-called bulk soil (> 6 mm). The contents of total extractable S 0 decreased in order: lupine (5-35 mg/kg) > rape (4-18 mg/kg) > wheat (1.5-3 mg/kg). The same order was observed for mineral S-SO 4 2-where the contents in soil extracts were 1-10 mg/kg, 2-7 mg/kg, and 0.5-3 mg/kg, respectively. The highest total extractable S and mineral S (S-SO 4 2-) contents were found in the treatments fertilized with organic fertilizers. In the case of rape and wheat the arylsulphatase (ARS) activity was higher in the rhizosphere compared to the bulk soil; the opposite was recorded for lupine. It was acknowledged that the ARS activity was higher in the treatments fertilized with organic fertilizers (manure or sewage sludge) with all three tested plants. The highest determined ARS activity was found after wheat cultivation, the lowest after the lupine cultivation. The organic sulphur content followed an opposite tendency (lupine > rape > wheat).

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Effect of soil heating on the dynamics of soil available nutrients in the rhizosphere

Cited by 19 publications

References 25 publications

Distribution and forms of cadmium on the rhizosphere ofBrassica junceain Cd-contaminated soils and implications for phytoremediation

Distribution and forms of cadmium on the rhizosphere ofBrassica junceain Cd-contaminated soils and implications for phytoremediation

Soil Phosphorus Uptake by Continuously Cropped Lupinus albus: A New Microcosm Design

Crop influence on mobile sulphur content and arylsulphatase activity in the plant rhizosphere

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