Long-term Effects of Integrated Soil Fertility Management Practices on Soil Chemical Properties in the Sahel
| Author | Alexis M. Adams | |
| Author | Adam W. Gillespie | |
| Author | Gurbir S. Dhillon | |
| Author | Gourango Kar | |
| Author | Colin Minielly | |
| Author | Saidou Koala | |
| Author | Badiori Ouattara | |
| Author | Anthony A. Kimaro | |
| Author | Andre Bationo | |
| Author | Jeff J. Schoenau | |
| Author | Derek Peak | |
| Jurisdiction: | Sahel | |
| Date of acession | 2023-11-07T07:46:07Z | |
| Date of availability | 2023-11-07T07:46:07Z | |
| Date of issue | 2020-05 | |
| Abstract | Joint application of mineral and organic fertilizers and incorporation of legumes into cropping systems, known as integrated soil fertility management (ISFM), has improved short-term crop productivity in sub-Saharan Africa. Little research exists, however, on the effectiveness of long-term ISFM in improving soil quality and productivity.This study determined the long-term effects of different ISFM treatments on soil chemical properties and OM dynamics up to 20 cm soil depth at a long-term research site at Saria,Burkina Faso. The ISFM treatments applied from 1960 to 2008 included broadcasted fertilizer (100 kg ha−1 14-23-14 (NPK) with 50 kg ha−1 urea; and NPK with an additional 50 kg ha−1 urea and 50 kg ha−1 KCl) supplemented with crop residue retention, and with manure application at 5000 or 40000 kg ha−1. In addition, continuous cropping of Sorghum bicolor (sorghum) was compared to yearly rotation between sorghum and Vigna unguiculata (cowpea). The large manure rate (40,000 kg ha−1) supplement was most effective in buffering fertilizer-application induced pH decline and increasing grain yield, soil carbon (C), nitrogen (N),and phosphorus(P)concentrations (p < 0.05). Manure application also enhanced the microbial cycling and retention of C and N microbial byproducts compared to other fertilizer treatments, as indicated by C and N X-ray Absorption Near EdgeStructure(XANES)spectroscopies. Legume-cereal cropping led to increased abundance of C and N functional groups indicative of reduced OM breakdown compared to the continuous cropping system. Supplemental application of manure with mineral fertilizers under mixed cereal-legume cropping was found to be most effective in improving long-term soil fertility and crop productivity in the Sahel. | |
| Citation | Alexis M. Adams, Adam W. Gillespie, Gurbir S. Dhillon, Gourango Kar, Colin Minielly, Saidou Koala, Badiori Ouattara, Anthony A. Kimaro, Andre Bationo, Jeff J. Schoenau, Derek Peak, Long-term effects of integrated soil fertility management practices on soil chemical properties in the Sahel, Geoderma, Volume 366, 2020, 114207,ISSN 0016-7061, https://doi.org/10.1016/j.geoderma.2020.114207. | |
| DOI | https://doi.org/10.1016/j.geoderma.2020.114207 | |
| URL | https://hub.ifdc.org/handle/20.500.14297/2711 | |
| URL | https://doi.org/10.1016/j.geoderma.2020.114207 | |
| Language | en | |
| Subject | Fertilizers | |
| Subject | Productivity | |
| Title | Long-term Effects of Integrated Soil Fertility Management Practices on Soil Chemical Properties in the Sahel | |
| Type | Article |
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