Management of pigeon pea in short fallows for crop-livestock production systems in the Guinea savanna zone of northern Ghana
Tóm tắt
Crop and livestock production in the Guinea savanna zone of northern Ghana has been declining over the past years as a result of increasing pressure on land. To sustain soil productivity, pigeon pea(Cajanus cajan), a leguminous perennial crop was evaluated for its potential as a short duration fallow crop for fodder and grain, and maize (Zea mays)production. It involved comparing a natural fallow (i.e., control) and four improved fallows of pigeon pea pruned annually at 30 cm, 60 cm and 90 cm from the ground, and unpruned pigeon pea over a two-year period. After this time, the land was cleared manually and planted to maize. The highest mean annual biomass of pigeon pea over the two-year period of 6.1 t ha−1 dry matter (DM) was obtained by pruning at 60 cm. The highest leaf litter production and pigeon pea seed yield was obtained from the no pruning treatment. The mean maize grain yield from the improved fallow (3.02 t ha−1) in the first year after clearing was significantly (P < 0.05) greater than that of the natural fallow (1.54 t ha−1). Considering the biomass of pigeon pea from pruning, pigeon pea seed yield and maize grain yield after the pigeon pea, pruning pigeon pea at 60 cm is the most promising regime for crop-livestock production systems.
Tài liệu tham khảo
Adejuwan JO and Adesina FA (1990) Organic matter and nutrient status under cultivated fallows: an example of Gliricidia sepium fallows from South Western Nigeria. Agroforestry Systems 10: 23-32
Adu SV (1957) Report on Detail Soil Survey of Central Agricultural Station (Presently: Savanna Agricultural Research Institute), Nyankpala, Ghana, pp 11-12
Akinola JO, Whiteman PC and Walis ES (1975) The Agronomy of Pigeon Pea (Cajanus Cajan). Review Series No. 1/1975. CAB, UK, p 57
Animal Research Institute (ARI) (1997) Annual Report for 1996. Accra, Ghana
Daniel JN and Ong CK (1990) Perennial pigeon pea: a multi-purpose species for agroforestry systems. Agroforestry Systems 10: 113-129
FAO-UNESCO (1990) Soil Map of the World. Revised Legend, Technical paper 20, ISRIC, Wageningen, p 57
Gooding HJ (1962) The agronomic aspects of pigeon pea. Field Crop Abs 15: 1-5
International Institute of Tropical (IITA) (1979) Selected Methods for Soil and Plant Analysis. Manual Series No. 1, pp 3, 6-7, 10-12, 14-15. Ibadan, Nigeria
International Institute of Tropical Agriculture (IITA) (1986) Annual Report for 1985. Ibadan, Nigeria
Karachi M and Zengo M (1998) Legume forages from pigeon pea, leucaena and sesbania as supplements to natural pastures for goat production in western Tanzania. Agroforestry Systems 39: 13-21
Kumar Rao JVDK, Dart PJ and Sastry PVSS (1983) Residual effect of pigeon pea (Cajanus cajan) on yield and nitrogen response of maize. Experimental Agriculture 19: 131-141
Ministry of Food and Agriculture (MoFA) (1991) Agriculture in Ghana: Facts and Figures, Policy Planning, Monitoring and Evaluation Division (PPMED), MoFA, Presbyterian Press, Accra, pp 13-15
Nair PKR (1984) Soil Productivity Aspects of Agroforestry. ICRAF, Nairobi
Prinz D (1986) Increasing the productivity of smallholder farming systems by introduction of planted fallows. Plant Research and Development 24: 31-56
Rao MR, Nair PKR and Ong CK (1998) Biophysical interactions in tropical agroforestry systems. Agroforestry Systems 38: 3-50
Roy Sharma RP, Thakur HC and Sharma HM (1981) Pigeon pea as a rabi crop in India. In: Proceedings of the International Workshop on pigeon peas, Volume 1, 15-19 December 1980, pp 26-36. ICRISAT, Patancheru, AP, India
Savanna Agricultural Research Institute (SARI) (1999) In-house Review Report for 1998, Tamale, Ghana
Savanna Agricultural Research Institute (SARI) (2000) In-house Review Report for 1999, Tamale, Ghana
Statistix (1996) Statistix for Windows, User's Manual. Analytical Software, Tallahassee, USA
Torquebiau EF and Kwesiga F (1996) Root development in Sesbania sesban fallow-maize system in eastern Zambia. Agroforestry Systems 34: 193-211
Whiteman PC and Norton BW (1981) Alternative uses of pigeon peas. In: Proceedings of the International Workshop on Pigeon Peas, Volume 1, 15-19 December 1980, pp 365-377. ICRISAT, Patancheru, AP, India