The Interactive Effect of Residue Quality, Quantity, Soil Texture and N Management on Maize Crop Yield in Ghana



Food insecurity and declining soil fertility across much of sub-Saharan Africa in recent decades have led to pursuit of alternative nutrient management strategies for both improving crop yields and the restoration of degraded soils. In this respect, a 3-year field based studies involving two sites (Ayuom and Kwadaso) of contrasting soils (Suko and Nzima series) in the semi-deciduous forest zone of Ghana was initiated in year 2003. The treatments involved 5 organic resources of different qualities (in terms of N, lignin and polyphenol) with and without inorganic N application. The organic resources were applied at two application rates; 1.2 t C ha−l year.−l and 4 t C ha−l year.−l in the major season and the residual effect evaluated in the ensuing minor season. Cumulative maize grain yield (3 years) at Ayuom on the Suko series for the major season showed that 1.2 t C ha−l L. leucocephala+120 kg N ha−l proved to be the most effective treatment with yield of almost 18,000 kg ha−l. At Kwadaso on the Nzima series however, 4 t C ha−l Cattle manure+120 kg N ha−l for the minor season was the most effective. At both sites, major season grain yields were generally higher than minor season. Furthermore, between cropping seasons, maize yields were superior on the Suko series than the Nzima series. To improve food security in the semi-deciduous forest zone of Ghana, soil nutrient management to restore soil fertility should take into consideration: soil type, cropping season, organic resource quality and quantity as well as their interaction with inorganic N.


Soil texture Residue quality Residue quantity N management Cropping season 



This research was supported by the International Foundation for Science, Stockholm, Sweden and United Nations University (UNU), Tokyo, Japan, through a grant to Edward Yeboah. The study also received support from the Agricultural Services SubSector Investment Programme (AGSSIP-Ghana) and the National Science Foundation, Ecosystem Cluster (DEB: 0344971), USA.


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.CSIR- Soil Research InstituteKumasiGhana
  2. 2.Soil Science Department, Faculty of Agriculture and Consumer SciencesUniversity of GhanaAccraGhana
  3. 3.International Institute of Tropical AgricultureNairobiKenya
  4. 4.UK Biochar Research Centre (UKBRC)University of EdinburghEdinburghUK
  5. 5.Institute of Agricultural Science and Sustainable AgroecosystemsZurichSwitzerland

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