| dc.contributor.author | Yamoah, C.F. |
| dc.contributor.author | Ngueguim, M. |
| dc.contributor.author | Ngong, C. |
| dc.contributor.author | Dias, D.K.W. |
| dc.date.accessioned | 2023-06-22T08:11:27Z |
| dc.date.available | 2023-06-22T08:11:27Z |
| dc.date.issued | 1996 |
| dc.identifier.citation | Yamoah, C.F., Ngueguim, M., Ngong, C. & Dias, D.K.W. (1996). Reduction of P fertilizer requirement using lime and Mucuna on high P-sorption soils of NW Cameroon. African Crop Science Journal, 4(4), 441-451. |
| dc.identifier.issn | 1021-9730 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/8213 |
| dc.description.abstract | Soil acidity and high phosphorus (P) fixation are real problems in the Highlands of Central and Eastern Africa. Phosphatic fertilizers are imported and costly for the average farmer. We used lime and Mucuna green manure to reduce fertilizer P requirement of traditional food crops in NW Camcroon. Lime and phosphorus significantly improved stand count, root and stem weights as well as yields of maize (Zea mays L.), bean (Phaseolus spp.), and Irish potato (Solanum tuberosum L.) in three consecutive cropping seasons. Liming was most effective at low P rates and its effect on yield diminished with increasing P fertilization. Likewise, high P was unnecessary when lime was applied. Mucuna green manuring behaved similarly to liming and reduced maize P requirement by between 45 and 83%. Additionally, liming raised soil calcium (Ca), pH, effective cation exchange capacity (ECEC), and lowered exchangeable acidity (Al+H) as well as Al saturation. Consequently, maize and bean yields correlated positively (P<0.01) with pH, ECEC and exchangeable Ca but related inversely (P<0.01) with total acidity and Al saturation. Liming at 2 t ha-1 was observed to be uneconomical at the current prices of lime and P fertilizer. Thus, our results suggest that farmers could use either a much lower rate of lime or Mucuna green manuring with less than 85 kg ha-1 P fertilizer to sustain production on acid infertile soils in NW Cameroon. Résumé L'acidite du sol et la haute fixation du Phosphote (P) sont des veritables problemes des regions montagneuses de l'Afrique Centrale et de l'Est. Les engrais phosphoriques sont importes et sont tres couteux aux fermiers de la classe mayenne. Nous avous utilise des chaux et fumiers verts "Mucuna" pour reduire les exigences des engrais P des cultures traditionnelles au NW Cameroun. Les chaux et les engrais du phosphore ont cousiderablement ameliores la qualite des racines, les poids des tiges ainsi que les rendements du mais (Zea mays L.), l'haricot (Phaseolus spp.), et la pomme de terre (Solanum tuberosum) dans trois saisons des cultures consecutives. L'utilisation du chaux etait la plus effective a un faible niveau de taux et son effet sur le rendement a diminue avec l'augmentation d'engrais. De meme, la haute densite du phospore (P) n'etait pas necessaire apres l'utilisation des chaux. Les fumiers verts "Mucuna" ont remplace les chaux et reduit les besoins d'utilisation des phosphates pour le mays de 45 a 83%. En plus, l'utilisation des chaux a augmente la capacite effective d'echange sol calcium (Ca), pH, (ECEC) et a diminue la possibilite d'echange de l'acidite (Al + H) aussi bien que la saturation Al. Par cousequent, les rendements du mais et de l'haricot ont des correlations positives (P<0.01) avec pH, ECEC et echangeable Ca mais a l'inverse (P<0.01) avec l'acidite totale et la saturation Al. Les chauf a 2t ha-1 etait constate etant moins economique par rapport aux prix actuels des chaux et des engrais P. Ainsi, d'apres nos resultats nous aimerions suggerer aux fermiers d'utiliser soit un taux moins eleve des chaux ou des engrais verts "Mucuna" avec moins de 85 kgs ha-1 d'engrais P en vue de maintenir la production sur les sols infertiles d'acides au NW Cameroun. |
| dc.description.sponsorship | United States Agency for International Development |
| dc.format.extent | 441-451 |
| dc.language.iso | en |
| dc.subject | Acidity |
| dc.subject | Saturation |
| dc.subject | Liming |
| dc.subject | Manure |
| dc.subject | Solanum Tuberosum |
| dc.subject | Maize |
| dc.subject | Zea Mays |
| dc.subject | Cameroon |
| dc.title | Reduction of P fertilizer requirement using lime and Mucuna on high P-sorption soils of NW Cameroon. |
| dc.type | Journal Article |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.contributor.affiliation | Institute of Agronomic Research, Cameroon |
| cg.contributor.affiliation | University of Nebraska-Lincoln |
| cg.coverage.region | Africa |
| cg.coverage.region | Central Africa |
| cg.coverage.country | Cameroon |
| cg.authorship.types | CGIAR and developing country institute |
| cg.iitasubject | Agronomy |
| cg.iitasubject | Climate Change |
| cg.iitasubject | Crop Systems |
| cg.iitasubject | Farming Systems |
| cg.iitasubject | Food Security |
| cg.iitasubject | Maize |
| cg.iitasubject | Plant Breeding |
| cg.iitasubject | Plant Production |
| cg.journal | African Crop Science Journal |
| cg.accessibilitystatus | Limited Access |
| cg.reviewstatus | Peer Review |
| cg.usagerightslicense | Copyrighted; all rights reserved |
| cg.targetaudience | Scientists |
| cg.futureupdate.required | No |
| cg.identifier.issue | 4 |
| cg.identifier.volume | 4 |
