Abstract
Consequences of Basic Slag (BS) on soil pH, Ca and Mg status in acid sulfate soils under various water contents were studied for 30 months. The four doses of BS at the rates of 0, 10, 20 and 30 t ha-1 and three levels of water contents such as: (a) moisture at field capacity (50% water), (b) moisture at saturated condition (100% water) and (c) wetting-drying cycle (from saturation versus field capacity) were considered for this incubation study. Basic slag at 30 t ha-1 was found to be the best dose in order of the increment in soil pH, followed by the lower doses of BS20>BS10. The BS30 treatment increased the soil pH values by about 1.0, 1.5 and 1.2 units more compared with the control in the Sarisabari soil and 2.0, 1.7 and 1.5 units more in the Purbapukuria soil under the conditions of field capacity, saturated and wetting-drying cycle, respectively. Apart from the water contents and soil conditions, the values of soil pH were also increased significantly (p≤0.05) at different periods of incubation compared with the control. Like soil pH, almost similar to and significant (p≤0.05) increased levels of Ca and Mg were determined in both the soils; regardless of water contents and incubation time. The striking changes were recorded for the rate of increments of Ca and Mg, which were 4 to 5 times higher for Ca and more than 2 times higher for Mg compared with the control after 2 months of incubation. These results suggest that the application of basic slag not only increased the Ca to the higher amount than the increment of Mg in the soils but also improved one of the important criteria of imbalance between Ca and Mg status in the soils.
| Original language | English |
|---|---|
| Pages (from-to) | 896-903 |
| Number of pages | 8 |
| Journal | Journal of Biological Sciences |
| Volume | 7 |
| Issue number | 6 |
| Publication status | Published - Aug 15 2007 |
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Keywords
- Acid sulfate soils
- Basic slag
- Calcium and magnesium status
- Incubation period
- Water contents
ASJC Scopus subject areas
- Cell Biology
- Molecular Medicine
Cite this
Consequences of basic slag on soil pH, calcium and magnesium status in acid sulfate soils under various water contents. / Khan, Md Harunor Rashid; Bhuiyan, Md Mukaddas Ali; Kabir, Syed Monzur; Blume, Hans Peter; Oki, Yoko; Adachi, Tadashi.
In: Journal of Biological Sciences, Vol. 7, No. 6, 15.08.2007, p. 896-903.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Consequences of basic slag on soil pH, calcium and magnesium status in acid sulfate soils under various water contents
AU - Khan, Md Harunor Rashid
AU - Bhuiyan, Md Mukaddas Ali
AU - Kabir, Syed Monzur
AU - Blume, Hans Peter
AU - Oki, Yoko
AU - Adachi, Tadashi
PY - 2007/8/15
Y1 - 2007/8/15
N2 - Consequences of Basic Slag (BS) on soil pH, Ca and Mg status in acid sulfate soils under various water contents were studied for 30 months. The four doses of BS at the rates of 0, 10, 20 and 30 t ha-1 and three levels of water contents such as: (a) moisture at field capacity (50% water), (b) moisture at saturated condition (100% water) and (c) wetting-drying cycle (from saturation versus field capacity) were considered for this incubation study. Basic slag at 30 t ha-1 was found to be the best dose in order of the increment in soil pH, followed by the lower doses of BS20>BS10. The BS30 treatment increased the soil pH values by about 1.0, 1.5 and 1.2 units more compared with the control in the Sarisabari soil and 2.0, 1.7 and 1.5 units more in the Purbapukuria soil under the conditions of field capacity, saturated and wetting-drying cycle, respectively. Apart from the water contents and soil conditions, the values of soil pH were also increased significantly (p≤0.05) at different periods of incubation compared with the control. Like soil pH, almost similar to and significant (p≤0.05) increased levels of Ca and Mg were determined in both the soils; regardless of water contents and incubation time. The striking changes were recorded for the rate of increments of Ca and Mg, which were 4 to 5 times higher for Ca and more than 2 times higher for Mg compared with the control after 2 months of incubation. These results suggest that the application of basic slag not only increased the Ca to the higher amount than the increment of Mg in the soils but also improved one of the important criteria of imbalance between Ca and Mg status in the soils.
AB - Consequences of Basic Slag (BS) on soil pH, Ca and Mg status in acid sulfate soils under various water contents were studied for 30 months. The four doses of BS at the rates of 0, 10, 20 and 30 t ha-1 and three levels of water contents such as: (a) moisture at field capacity (50% water), (b) moisture at saturated condition (100% water) and (c) wetting-drying cycle (from saturation versus field capacity) were considered for this incubation study. Basic slag at 30 t ha-1 was found to be the best dose in order of the increment in soil pH, followed by the lower doses of BS20>BS10. The BS30 treatment increased the soil pH values by about 1.0, 1.5 and 1.2 units more compared with the control in the Sarisabari soil and 2.0, 1.7 and 1.5 units more in the Purbapukuria soil under the conditions of field capacity, saturated and wetting-drying cycle, respectively. Apart from the water contents and soil conditions, the values of soil pH were also increased significantly (p≤0.05) at different periods of incubation compared with the control. Like soil pH, almost similar to and significant (p≤0.05) increased levels of Ca and Mg were determined in both the soils; regardless of water contents and incubation time. The striking changes were recorded for the rate of increments of Ca and Mg, which were 4 to 5 times higher for Ca and more than 2 times higher for Mg compared with the control after 2 months of incubation. These results suggest that the application of basic slag not only increased the Ca to the higher amount than the increment of Mg in the soils but also improved one of the important criteria of imbalance between Ca and Mg status in the soils.
KW - Acid sulfate soils
KW - Basic slag
KW - Calcium and magnesium status
KW - Incubation period
KW - Water contents
UR - http://www.scopus.com/inward/record.url?scp=34948814630&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34948814630&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:34948814630
VL - 7
SP - 896
EP - 903
JO - Journal of Biological Sciences
JF - Journal of Biological Sciences
SN - 1727-3048
IS - 6
ER -