Competition of the active roots of Cassia siamea Lam. and Zea mays L. (cv. Katumani composite B) in an alley cropping trial in semi-arid Kenya

Journal of Environmental Sciences

Volumn 11, Issue 4, 1999, Pages 462-467

  Umaya, G O ^a   Macharia, J N M ^a   Onyango, J C ^a   Stigter, C J ^b   Coulson, C L ^a  

^a UNIVERSITY OF NAIROBI   (Kenya)

^b WAGENINGEN UNIVERSITY   (Netherlands)

Author keywords

Agroforestry; Cassia siamea; Root competition; Semi arid; Zea mays

Indexed keywords

AGROFORESTRY; ALLEY CROPPING; ROOT COMPETITION; SEMIARID REGION;

EID: 0033388579     PISSN: 10010742     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (29)

1. Aina P O, Fapohunda H O, 1986. Plant and Soil [J], 94: 257-265.
2. Anderson E L, 1987. Agron J [J], 79: 544-549.
3. Anderson J M, Ingram J S, 1989. Tropical soil biology and fertility: a handbook of methods [M]. Wallingford: CAB International. 59-69.
4. Balasubramanian V, Sekayange L, 1986. Alley cropping: root distribution pattern of three alley shrubs at Kagasa, Rwanda [R]. ISAR-IITA FSR PROJECT. 1-2.
5. Ball B, 1985. Root distribution and nutrient cycling of some tree-shrubs suitable for cropping in humid tropics [D]. Canada: University of Guelph. M.Sc thesis.
6. Berish C W, Wewll J J, 1988. Plant and Soil [J], 106:73-84.
7. Böhm W, 1979. Methods of studying root systems [M]. New York: Springer-Verlag.
8. Collins R P, Gregory P J, Rowse H R et al., 1987. Plant and Soil [J], 103: 277-280.
9. Follet R F, Allmaras R R, Reichman G A, 1974. Agron J [J], 66:288-292.
10. Gomez A K, Gomez A A, 1984. Statistical procedures for agricultural experiments [M]. Toronto: John Wiley and Sons.
11. Habib R, 1988. Plant and Soil [J], 108: 267-274.
12. Haynes R J, 1980. Adv Agron [J], 33: 227-262.
13. Huch M G, 1983. Plant research and agroforestry [M] (Ed. by Huxley P A). Nairobi: ICRAF Press.
14. ICRAF, 1988. ICRAF field station Machakos, Kenya, Part I [M]. General Account. Nairobi: ICRAF Press.
15. Junying D, Yujing E, Wellian G, 1988. Acta Agron Sin [J], 14:310-314.
16. Kang B R, Wilaon G F, Sipkens L, 1981. Plant and Soil [J], 63: 165-179.
17. Little T M, Hills J F, 1978. Agricultural experimentation, design and analysis [M]. Toronto: John Wiley & Sons.
18. Mengel D B, Barber S A, 1974. Agron J [J], 66: 341-344.
19. Ministry of Economic Planning and Development, 1981. Machakos integrated development programme, Kenya [C]. Volume 3.
20. Mungai D M, 1992. A micrometeorological investigation of yield differences in alley cropping trials in the semi-arid areas of Machakos District, Kenya [D]. University of Nairobi, Kenya, PhD thesis.
21. Nadar H M, 1984. East Afr Agr for J Special Issue [J], 44: 52-56.
22. Pages L, Jordan M O, Picard D, 1989. Plant and Soil [J], 119: 147-151.
23. Schuurman J J, Goedewaagen M A J, 1971. Methods for the examination of root systems and roots [C]. Wageningen: Center for Agricultural Publishing and Documentation.
24. Steel R G D, Torrie J H, 1981. Principles and procedures of statistics. A biometric approach [M]. London: McGraw-Hill Book Co.
25. Sylvia D M, Neal L H, 1990. New Phytol [J], 115: 303-310.
26. Tardieu F, 1988. Plant and Soil [J], 107: 259-266.
27. Tennant D, 1975. J Ecol [J], 63: 995-1001.
28. Umaya G O, 1991. The spatial and temporal distribution of the active roots of Cassia siamea Lam. and Zea mays L. (cv, Katumani composite B) in alley cropping under semi-arid conditions in Machakos district, Kenya[D]. University of Nairobi, Kenya, M. Sc thesis.
29. Van Noordwijk M, 1989. Methodology in soil-K research [C], Proc. 20th collq. IPI, Baden Bei Wien, 263-281.