1999
DOI: 10.1080/00380768.1999.10415837
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Effects of the addition of Fe-containing slag fertilizers on the changes inEh in Paddy soil

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Cited by 16 publications
(10 citation statements)
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“…To collect the soil solutions, a porous cup, 10 cm long, was set in the soil vertically around 2 cm below the soil surface. The cup was connected to a flexible plastic tube, and the soil solution obtained was introduced into a 10 mL evacuated test tube 25 . The amount of Fe in soil solution was determined by the colorimetric method using o-phenanthroline 21 .…”
Section: Methodsmentioning
confidence: 99%
“…To collect the soil solutions, a porous cup, 10 cm long, was set in the soil vertically around 2 cm below the soil surface. The cup was connected to a flexible plastic tube, and the soil solution obtained was introduced into a 10 mL evacuated test tube 25 . The amount of Fe in soil solution was determined by the colorimetric method using o-phenanthroline 21 .…”
Section: Methodsmentioning
confidence: 99%
“…Experiment II. The apparatus used for collecting the soil solution and measuring Eh was described in a previous paper (Nozoe et al 1999). Two hundred grams of soil B with 200 and 400 mg of powdered Fe(O) and 500 mg of Fe(III)P0 4 ·4H z O were put into a 500 mL polyethylene oscillation tube.…”
Section: Methodsmentioning
confidence: 99%
“…When slags are applied to rice soil, Ca dissolution in the soil solution leads to an increase in pH. High pH values retarded the dissolution of Fe from slags (Nozoe et al 1999). Therefore, the Ca content of the materials affects the dissolution of Fe.…”
Section: Experiments IImentioning
confidence: 99%
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“…Since the pH of the percolating water from the RFS pot was consistently 0.5 point higher than that from the control pot, soil Eh was certainly affected by the pH (Yanagisawa 1978). Nozoe et al (1999) described the detail mechanism of the relation between Ca 2 + released from the RFS and soil pH and Eh level. High concentration of calcium and high pH of the RFS used in this study, however, did not affect the yields of rough rice and rice straw.…”
Section: Chemical Composition Of Brown Ricementioning
confidence: 99%