Controlled release urea: effect on ammonia volatilization loss to sandy clay loam soil

Khanif Y.M., . and Kiran J.K., . (2008) Controlled release urea: effect on ammonia volatilization loss to sandy clay loam soil. [Proceedings Paper]

Urea is subjected to high ammonia NH3-N volatilization loss. Controlled release ureaCRU can be used to reduce this loss. This study was conducted to determine the effect of CRU on NH3-N loss. This study investigates the NH3-N volatilization losses from CRU as compared to urea fertilizer under laboratory condition. The CRU used CDU Uber-l0 Meister-20 Meister-27 and Duration Type-V were applied on the surface of soils. Ammonia volatilization losses from surface applied urea on Serdang series Rengam series Selangor series and Holyrood series soil were determined for duration of 70 days using the force draft technique. The percentage NH3-N loss between the CRU and urea fertilizer was found to be significantly different. The higher N loss was caused by the rapid hydrolysis which increases soil pH. The CRU treatments were effective in reducing NH3-N volatilization loss. The losses were reduced from 50 to less than 10 using CRU. Thus we conclude that surface application of CRU in sandy clay loam and clayey soil reduces NH3-N volatilization.

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Abstract

Urea is subjected to high ammonia NH3-N volatilization loss. Controlled release ureaCRU can be used to reduce this loss. This study was conducted to determine the effect of CRU on NH3-N loss. This study investigates the NH3-N volatilization losses from CRU as compared to urea fertilizer under laboratory condition. The CRU used CDU Uber-l0 Meister-20 Meister-27 and Duration Type-V were applied on the surface of soils. Ammonia volatilization losses from surface applied urea on Serdang series Rengam series Selangor series and Holyrood series soil were determined for duration of 70 days using the force draft technique. The percentage NH3-N loss between the CRU and urea fertilizer was found to be significantly different. The higher N loss was caused by the rapid hydrolysis which increases soil pH. The CRU treatments were effective in reducing NH3-N volatilization loss. The losses were reduced from 50 to less than 10 using CRU. Thus we conclude that surface application of CRU in sandy clay loam and clayey soil reduces NH3-N volatilization.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal 590.2 S683 2008 Call Number
AGROVOC Term:	UREA
AGROVOC Term:	AMMONIA
AGROVOC Term:	SANDY SOILS
AGROVOC Term:	SOIL ANALYSIS
AGROVOC Term:	MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:13
URI:	http://webagris.upm.edu.my/id/eprint/11263

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