| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
ABSTRACT
The effects of different application rates of sewage sludge and sludge compost (0, 40, 80, 120, and 240 metric tons/ha) on soil physical and chemical properties were studied at two pH levels.
Sludge application rates exceeding 120 metric tons/ha were difficult to apply and produced a cloddy seedbed, while the same rate of compost was easily applied and produced a friable seedbed. Sludge and compost increased the water content and the water retention of a silt loam soil. Both the sludge and compost increased the salinity and chloride levels of the soil to a level which may affect salt-sensitive plants. The soil's cation exchange capacity increased as much as threefold as a result of the addition of sludge and compost. Nitrate-nitrogen levels were highest at the 15–20 cm soil depth but decreased sharply below this level. Available phosphorus was high during the 2-year study and appeared to be in excess of that needed for good crop growth.
Key Words: water content • water retention • redox • cation exchange capacity • nitrogen
1 Contribution from the USDA, Agric. Environ. Qual. Inst., ARS, Biol. Waste Manage. and Soil Nitrogen Lab., Beltsville, MD 20705, and the Maryland Environ. Serv., Annapolis, MD 20701.
2 Research Soil Scientist, Plant Physiologist, and Research Plant Physiologist, respectively.
Received for publication November 18, 1975.
This article has been cited by other articles:
|
|
 |
|
  M. Tejada and J. L. Gonzalez Effects of Application of a By-Product of the Two-Step Olive Oil Mill Process on Maize Yield Agron. J., May 1, 2004; 96(3): 692 - 699. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 B. J. Foley and L. R. Cooperband Paper Mill Residuals and Compost Effects on Soil Carbon and Physical Properties J. Environ. Qual., November 1, 2002; 31(6): 2086 - 2095. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 L. M. Bresson, C. Koch, Y. Le Bissonnais, E. Barriuso, and V. Lecomte Soil Surface Structure Stabilization by Municipal Waste Compost Application Soil Sci. Soc. Am. J., November 1, 2001; 65(6): 1804 - 1811. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. I. Querejeta, A. Roldán, J. Albaladejo, and V. Castillo Soil Physical Properties and Moisture Content Affected by Site Preparation in the Afforestation of a Semiarid Rangeland Soil Sci. Soc. Am. J., November 1, 2000; 64(6): 2087 - 2096. [Abstract] [Full Text]
|
|
|
|
 |
|
 M. J. Jackson and M. A. Line Assessment of periodic turning as an aeration mechanism for pulp and paper mill sludge composting Waste Management Research, August 1, 1998; 16(4): 312 - 319. [Abstract] [PDF]
|
|
|
|
|
|
N.R. Hulugalle Effects of Pelletized Sewage Sludge On Soil Properties of a Cracking Clay From Eastern Australia Waste Management Research, January 1, 1996; 14(6): 571 - 580. [Abstract] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Vadose Zone Journal | Journal of Plant Registrations | ||||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal |
