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Amending soil with sludge, manure, humic acid, orthophosphate and phytic acid: Effects on aggregate stability
Year:
2014
Source of publication :
Soil Research
Authors :
Bar-Yosef, Bnayahu
;
.
Fine, Pinchas
;
.
Levkovitch, Irit
;
.
Levy, Guy
;
.
Mamedov, Amrakh
;
.
Rosenberg, Rivka
;
.
Silber, Avner
;
.
Volume :
52
Co-Authors:
Mamedov, A.I., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel, Selçuk University, Ardiçli Mh., 42250 Konya, Turkey, USDA-ARS, 1515 College Avenue, Manhattan, KS 66502, United States
Bar-Yosef, B., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Levkovich, I., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Rosenberg, R., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Silber, A., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Fine, P., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Levy, G.J., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
317
To page:
326
(
Total pages:
10
)
Abstract:
Recycling of organic wastes via their incorporation in cultivated lands is known to alter soil structural stability. Aggregate stability tests are commonly used to express quantitatively the susceptibility of soil structural stability to deformation. The objective of this study was to investigate the effects of biosolids addition, namely composted manure (MC) and activated sludge (AS), and spiking of the soils with orthophosphate (OP), phytic acid (PA) or humic acid (HA), on soil aggregate stability of semi-arid loamy sand, loam and clay soils before and after subjecting the soils to six rain storms (each 30mm rain with a break of 3-4 days). Aggregate stability was determined from water-retention curves at high matric potential. The effects of the applied amendments on pre- and post-rain aggregate stability were inconsistent and soil-dependent. For the pre-rain state, all of the tested amendments improved aggregate stability relative to the control. For the post-rain condition, aggregate stability was lower in the MC, OP and PA treatments and higher in the AS and HA treatments than in the control. The coarse-textured loam and loamy sand soils were more affected by the soil amendments than the clay soil. For the pre-rain state, addition of organic matter significantly improved macro-porosity and hence the stability of apparent macro-aggregate (>250m). Our results indicate a possible advantage for separation of aggregates into macro- and micro-aggregates for more precise evaluation and understanding of the effects organic amendments might have on aggregate stability. © CSIRO 2014.
Note:
Related Files :
Biological materials
biosolids
High-energy moisture characteristic
Organic acids
rain
Soils
Stability
Show More
Related Content
More details
DOI :
10.1071/SR13334
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
21806
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:46
Scientific Publication
Amending soil with sludge, manure, humic acid, orthophosphate and phytic acid: Effects on aggregate stability
52
Mamedov, A.I., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel, Selçuk University, Ardiçli Mh., 42250 Konya, Turkey, USDA-ARS, 1515 College Avenue, Manhattan, KS 66502, United States
Bar-Yosef, B., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Levkovich, I., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Rosenberg, R., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Silber, A., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Fine, P., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Levy, G.J., Agricultural Research Organisation, Volcani Center, POB 6, Bet Dagan, 50250, Israel
Amending soil with sludge, manure, humic acid, orthophosphate and phytic acid: Effects on aggregate stability
Recycling of organic wastes via their incorporation in cultivated lands is known to alter soil structural stability. Aggregate stability tests are commonly used to express quantitatively the susceptibility of soil structural stability to deformation. The objective of this study was to investigate the effects of biosolids addition, namely composted manure (MC) and activated sludge (AS), and spiking of the soils with orthophosphate (OP), phytic acid (PA) or humic acid (HA), on soil aggregate stability of semi-arid loamy sand, loam and clay soils before and after subjecting the soils to six rain storms (each 30mm rain with a break of 3-4 days). Aggregate stability was determined from water-retention curves at high matric potential. The effects of the applied amendments on pre- and post-rain aggregate stability were inconsistent and soil-dependent. For the pre-rain state, all of the tested amendments improved aggregate stability relative to the control. For the post-rain condition, aggregate stability was lower in the MC, OP and PA treatments and higher in the AS and HA treatments than in the control. The coarse-textured loam and loamy sand soils were more affected by the soil amendments than the clay soil. For the pre-rain state, addition of organic matter significantly improved macro-porosity and hence the stability of apparent macro-aggregate (>250m). Our results indicate a possible advantage for separation of aggregates into macro- and micro-aggregates for more precise evaluation and understanding of the effects organic amendments might have on aggregate stability. © CSIRO 2014.
Scientific Publication
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