Phosphorus availability as affected by the application of phosphate rock combined with organic materials to acid soils in western Kenya

Experimental Agriculture

Volumn 39, Issue 4, 2003, Pages 395-407

  Waigwa, M W ^a   Othieno, C O ^a   Okalebo, J R ^a  

^a MOI UNIVERSITY   (Kenya)

Author keywords

[No Author keywords available]

Indexed keywords

ZEA MAYS;

EID: 0142070863     PISSN: 00144797     EISSN: None     Source Type: Journal    
DOI: 10.1017/S0014479703001248     Document Type: Article

References (21)

1. Ahn, P. M. (1993). Tropical Soils and Fertilizer Use. Longman. UK:
2. Bromfield, A. R. (1975). Effects of ground phosphate rock-sulfur mixture on yield and nutrient uptake of groundnuts (Arachis hypogea). Northern Nigeria Experimental Agriculture 11:265-272.
3. Burcsh, R. J., Simthson, P. C. and Hellums, D. T. (1997). Building soil P in sub-Saharan Africa. In Replenishing Soil Fertility in Africa. Soil Science Society of America Special Publication No. 51, Madison, WI, USA.
4. Chien, S. H. and (1978). Dissolution of phosphate rock in solutions and soils. Proceedings of a Seminar on Phosphate Rock for Direct Application. Haifa-Israel, 97-111.
5. FAO/UNESCO (1990). Soil map of the world. Revised Legend World Soil Resource Report 60. Rome, Italy.
6. GENSTAT (1993). GENSTAT 5, Release 3.2 Reference Manual. Oxford: Oxford University Press, UK.
7. IFDC (1978). Proceedings of Seminar on Phosphate Rock for Direct Application. International Fertilizer Development Center, Muscle Shoals, Albama, USA.
8. Iyamuremye, F. and Dick, R. P. (1996). Organic amendments and phosphorus sorption by soils. Advances in Agronomy 56:139-183.
9. Jama, B., Swinkles, R. A. and Buresh, R. J. (1997). Agronomic and economic evaluation of organic and inorganic sources of phosphorus in western Kenya. Agronomy Journal 89:597-604.
10. Khasawneh, F. E. and Doll, E. C. (1978). The use of phosphate rock for direct application to soils. Advances in Agronomy 30:159-205.
11. Mnkeni, P. N. S., Semoka, J. M. R. and Buganga, J. B. B. (1991). Effectiveness of Minjingu phosphate rock as a source of phosphorus for maize in some soils of Morogoro, Tanzania. Zimbabwe Journal of Agricultural Research 29: 27-37.
12. Mnkeni, P. N. S., Semoka, J. M. R. and Mwanga, S. N. (1992). Dissolution of Tanzanian phosphate rocks of igneous and sedimentary origin. Zimbabwe Journal of Agricultural Research 30: 67-75.
13. Mutuo, P. K., Smithson, P. C., Buresh, R. J. and Okalebo, R. J. (1999). Comparison of Phosphate Rocks and TSP on a Phosphorus Deficient Kenyan Soil. Communication in Soil Science and Plant Analysis 30:1091-1103.
14. Okalebo, R. (1987). A study of phosphate fertilizers on maize and sorghum production in some East African soils. Ph.D. thesis, University of Nairobi, Kenya.
15. Okalebo, J. R., Gathua, K. W. and Woomer, P. L. (1993). Laboratory Methods of Soil and Plant Analysis: A Working Manual. Nairobi, Kenya: Tropical Soil Biology and Fertility Programme- UNESCO and EPZ Publishers.
16. Okalebo, J. R. and Woomer, P. L. (1994). Use of rock and fertilizer phosphorus in eastern and southern Africa. Proceeding of the 14th Conference of the Soil Science Society of East Africa, Mbarara Uganda.
17. Palm, C. A., Myers, R. J. K. and Nandwa, S. M. (1997). Combined use of organic and inorganic nutrient sources for soil fertility maintenance and replenishment. In Replenishing Soil Fertility in Africa. Soil Science Society of America Special Publication 51, Madison, WI. U. S. A. 193-217.
18. Sanchez, P. A., Shepherd, K. D., Soule, M. J., Place, F. M., Buresh, R. J., Izac, A. M. N., Mukwenye, A. V., Kwesiga, G. R., Ndiritu, C. G. and Woomer, P. L. (1997). Soil fertility replenishment in Africa: an investment in natural resource capital. In Replenishing Soil Fertility in Africa. Soil Science Society of America Special Publication No. 51 Madison, WI, USA.
19. Semoka, J. M. R., Mnkeni, P. N. S. and Ringo, H. D. (1992). Effectiveness of Tanzanian phosphate rocks of igneous and sedimentary origin as sources of phosphorus for maize. Zimbabwe Journal of Agricultural Research 30(2): 127-136.
20. Van Kauwenberg, S. J. (1991). Overview of phosphate deposits in east and southeast Africa. Fertilizer Research 30:127-150.
21. Woomer, P. L., Okalebo, J. R. and Sanchez, P. A. (1997). Phosphorus replenishment in western Kenya: From field experiments to an operation strategy. Phosphorus Resource Exploratory Project (PREP) pre-Project Workshop Proceedings 12th - 15th May 1997, 28-39.