MICROBIAL BIOMASS INDEX, ENZYME ACTIVITIES AND CORN YIELD IN A SOIL AMENDED WITH SEWAGE SLUDGE

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HOJATI S.; NOUR BAKHSH F.; KHAVAZI K.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian Journal of Soil Research Year:2006 | Volume:20 | Issue:1 Page(s): 84-93

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Title

MICROBIAL BIOMASS INDEX, ENZYME ACTIVITIES AND CORN YIELD IN A SOIL AMENDED WITH SEWAGE SLUDGE

Author(s)

HOJATI S. | NOUR BAKHSH F. | KHAVAZI K. | Issue Writer Certificate

Keywords

SEWAGE SLUDGEQ2

SOIL ENZYME ACTIVITIESQ3

SOIL BIOMASS INDEXQ3

CORN YIELDQ3

Abstract

Increasing soil organic matter can improve plant growth due to its effects on physical, chemical and biological properties of soil. Transformation of essential elements from organic form under the influences of intra- and extra-cellular enzymes and other microbially mediated processes can increase plant growth. The aim of this study was to identify the effects of different rates and times of SEWAGE SLUDGE application on L-glutamines, alkaline phosphatase, arylsulfatase and ß-glycosidase activities, microbial biomass index and CORN YIELD. Three levels of application (0, 25 and 100 Mg ha-1) and four consecutive times of SEWAGE SLUDGE application (1, 2, 3 and 4) were studied in a randomized complete block split plot design with three replications. Composite soil samples were collected from 0-15 cm depth at the end of 4th year of application. Results illustrated that application of SEWAGE SLUDGE increased soil organic carbon (SOC) and total nitrogen (TN) compared with control treatment. An increasing trend was observed in sac and TN, as the rates and times of applications increased. Increasing the times and rates of application also enhanced L-glutaminase, alkaline phosphatase, arylsulfatase, ß-glucosidase activities, microbial biomass index and CORN YIELD, significantly. The lowest levels of enzyme activities and microbial biomass indices were observed in the control treatment. Four consecutive applications of 100 Mg ha-1 SEWAGE SLUDGE was associated with the highest levels of the bio-indicators. We concluded that functional biodiversity increased in soils that were amended with SEWAGE SLUDGE.

Cites

EFFECT APPLICATION OF SEWAGE SLUDGE AND SEWAGE SLUDGE ENRICHED WITH CHEMICAL FERTILIZER ON THE RATE OF ORGANIC CARBON, RESPIRATION AND ENZYME ACTIVITY OF SOIL UNDER BASIL CULTIVATION

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APA: Copy

HOJATI, S., NOUR BAKHSH, F., & KHAVAZI, K.. (2006). MICROBIAL BIOMASS INDEX, ENZYME ACTIVITIES AND CORN YIELD IN A SOIL AMENDED WITH SEWAGE SLUDGE. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, 20(1), 84-93. SID. https://sid.ir/paper/15923/en

Vancouver: Copy

HOJATI S., NOUR BAKHSH F., KHAVAZI K.. MICROBIAL BIOMASS INDEX, ENZYME ACTIVITIES AND CORN YIELD IN A SOIL AMENDED WITH SEWAGE SLUDGE. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES[Internet]. 2006;20(1):84-93. Available from: https://sid.ir/paper/15923/en

IEEE: Copy

S. HOJATI, F. NOUR BAKHSH, and K. KHAVAZI, “MICROBIAL BIOMASS INDEX, ENZYME ACTIVITIES AND CORN YIELD IN A SOIL AMENDED WITH SEWAGE SLUDGE,” IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, vol. 20, no. 1, pp. 84–93, 2006, [Online]. Available: https://sid.ir/paper/15923/en

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