Warren, G.P. (1992) Fertilizer phosphorus: sorption and residual value in tropical African soils (NRI Bulletin 37). [Working Paper]

Preview

PDF Doc-0128.pdf - Published Version Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (53MB)

Abstract

African soils are commonly short of phosphorus (P). Additions of fertilizer P can increase yields on most soils which have not previously received additional P. Agroforestry and management of mycorrhizas have the potential to improve the P nutrition of crops in tropical Africa but they cannot, however, replace P removed in additional crop yields. This review deals with two main problems: Assessment of fertilizer P requirements (Sections 1-4); Residual effects of fertilizer P (Sections 5-8).

Item Type:	Working Paper
Additional Information:	[1] ISBN: 0-85954-312-9 [2] Acknowledgements: The author wishes to thank Professor Alan Wild of the Department of Soil Science, University of Reading, for assistance in the preparation of this Bulletin. Original research work at the University of Reading which is described in the Bulletin was funded by the Natural Resources and Environment Department of the Overseas Development Administration through the Natural Resources Institute.
Uncontrolled Keywords:	fertilizer, phosphorous sorption, phosphate sorption, residual value, tropic, Africa, african soil, phophorus deficiency, organic manure, phosphate rock, agroforestry, mycorrhizal association, phosphorus requirement, sorption isotherm
Subjects:	S Agriculture > S Agriculture (General)
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > Natural Resources Institute Faculty of Engineering & Science > Natural Resources Institute > Agriculture, Health & Environment Department
Related URLs:	Organisation
Last Modified:	28 Nov 2019 13:09
URI:	http://gala.gre.ac.uk/id/eprint/11069

Actions (login required)

View Item

Downloads