Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes

Jean Mianikpo Sogbedji; Lakpo Kokou Agboyi; Kodjovi Sotomè Detchinli; Ruth Atchoglo; Mihikouwe Mazinagou

doi:doi:10.11648/j.jps.20150303.12

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Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes

Jean Mianikpo Sogbedji, Lakpo Kokou Agboyi, Kodjovi Sotomè Detchinli, Ruth Atchoglo, Mihikouwe Mazinagou

Published in Journal of Plant Sciences (Volume 3, Issue 3)

Received: 3 April 2015 Accepted: 16 April 2015 Published: 24 April 2015

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Abstract

Improved nutrient use efficiency and use of appropriate crop varieties are required towards producing enough food in a sustainable manner. This study assessed the response of three cassava (Manihot esculenta Crantz) varieties to three potassium (K) fertilization rates on West African ferralsols. It aimed at identifying optimal K fertilizer application rates and corresponding appropriate crop varieties for improved and sustainable cassava production. Three K fertilizer rates including 0, 50 and 100 kg K ha-1 were used together with fertilizers nitrogen (N) and phosphorus (P) each at a fixed rate of 60 kg ha-1. The cassava varieties were Gbazekoute (V1), KH (V2) and Moya (V3). Field data including cassava fresh tuber and stover yields, and harvest index (HI) were collected from the 2-yr experiment in which treatments were arranged in a split-plot design, with varieties as main plots and K fertilizer rate as subplots. Mean fresh tuber yield under Gbazekoute (65.5 Mg ha-1) increased by 68.4 and 44.3% as compared with KH (38.9 Mg ha-1) and Moya (45.4 Mg ha-1), respectively, while yield under Moya was superior to that of KH by 16.7%, indicating that tuber yield potential was highest, intermediate and lowest for V1, V3 and V2, respectively. Mean stover yield under Gbazekoute (52.2 Mg ha-1) decreased by 12.6 and 18.7% as compared with KH (59.7 Mg ha-1) and Moya (64.2 Mg ha-1), respectively. Mean harvest index values increased under Gbazekoute (55.7%) by 41 and 34.5 % as compared with KH (39.5%) and Moya (41.4%), respectively, and value under KH was 4.6% lower than that for Moya. The three varieties were responsive to applied fertilizer K rate with the response being highest, intermediate and lowest for the KH, Moya and Gbazekoute, respectively. For the three varieties, the optimum K fertilizer application rate was 50 kg K ha-1. Gbazekoute proved superior over KH and Moya in efficiently allocating assimilates to storage roots at the expenses of the stover. The use of 50 kg K ha-1 together with 60 kg N ha-1 and 60 kg P ha-1 (N60P60K50 kg ha-1) under the Gbazekoute may be a recommended practice towards sustaining improved cassava production on the inherently degraded West African ferralsols.

Published in	Journal of Plant Sciences (Volume 3, Issue 3)
DOI	10.11648/j.jps.20150303.12
Page(s)	117-122
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Cassava Variety, Ferralsols, Fertilizer Potassium, Yield, Harvest Index

References

[1]	H. P. Liniger, R. Mekdaschi Studer, C. Hauert, and M. Gurtner, “La pratique de la gestion durable des terres. directives et bonnes pratiques en Afrique subsaharienne,” TerrAfrica, Panorama mondial des approches et technologies de conservation (WOCAT) et Organisation des Nations Unies pour l’alimentation et l’agriculture (FAO). Rome, Italie, 243p, 2011.
[2]	A. Burns, R. Gleadow, J. Cliff, A. Zacarias, T. Cavagnaro T. “Cassava: the drought, war and famine crop in a changing world,” Sustainability, Vol. 2, pp. 3572-3607, 2010.
[3]	D. Baulcombe, I. Crute, B. Davies, J. Dunwell, M. Gale, J. Jones, J. Pretty, W. Sutherland, C. Toulmin, N. Green, et al. “Reaping the benefits: science and the sustainable instensification of global agriculture,” Roy. Soc. London, 2009.
[4]	A. Challinor, T. Wheeler, C. Garforth, P. Craufurd, A. Kassam, “Assessing the vulnerability of food crop systems in Africa to climate change,” Climatic Change, vol. 83, pp. 831-399, 2007.
[5]	D. Cordell, J. O. Drangert, S. White, “The story of phosphorus: global food security and food for thought,” Global Environ. Change, vol. 19, pp. 292-305, 2009.
[6]	E. A. Frison, E. Feliu, “FAO/IBPGR Technical Guidelines for the Safe Movement of Cassava Germplasm,” Food and Agriculture Organization of the United Nations, Rome/International Board for Plant Genetic Resources, Rome, 48 pp, 1991.
[7]	IFDC, International Fertilizer Development Center, “Mainstreaming pro-poor fertilizer access and innovative practices in West Africa,” IFAD Technical Assistance Grant No. 1174 report. Muscle Shoals, Alabama, 2013.
[8]	S. O. Ojeniyi, S. A. Adejoro, O. Ikotun, O. Amusan, “Soil and plant nutrient composition, growth and yield of cassava as influenced by integrated application of NPK fertilizer and poultry manure,” New York Sci. J. vol. 9, pp. 62-68, 2012.
[9]	S. O. Ojeniyi, P. O.Ezekiel, D. O. Asawalam, A. O.Awo, S. A. Odedina, J. N. Odedina, “Root growth and NPK status of cassava as influences by oil palm bunch ash,” Afr. J. Biotechnol. Vol. 8, pp. 4407 – 4412, 2009.
[10]	P. Imas, K.S. John, “Potassium nutrition of cassava” International Potash Institute. Research Findings, Baumgärtlistrasse 17, 8810 Horgen, Suisse, pp. 13-18, 2013.
[11]	J. R. Hillocks, J. M. Thresh, C. A. Bellotti, “Cassava: biology, production and utilization,” CABI Publishing: Oxon, UK, 2002.
[12]	T. M. Dahniya, “An overview of cassava in Africa,” Afr. Crop Sci. J. vol. 2, pp. 337-343, 1994.
[13]	H. R. Howeler, “Cassava mineral nutrition and fertilization,” In: Hillocks, R.J., Thresh J.M. and Belloti, A.C. (eds.) Cassava: biology, production and utilization. CAB International, UK, pp. 115-147, 2002.
[14]	S. Agyenim Boateng, S. Boadi, “Cassava yield response to sources and rates of potassium in the forest–savanna transition zone of Ghana,” Afr. J. Root and Tuber Crops, vol. 8, pp. 1-15, 2010.
[15]	O. G. Agbaje, A. T. Akinlosotu, “Influence of NPK fertilizer on tuber yield of early and late planted cassava in a forest alfisol of south-western Nigeria,” Afr. J. Biotechnol, Vol. 3, pp. 547–551, 2004
[16]	P. Akanza Kouadjo, A. Yao-Kouame, “Fertilisation organo-minérale du manioc (Manihot esculenta Crantz) et diagnostic des carences du sol, ” J. Appl. Biosci, vol. 46, pp. 3163– 3172, 2011.
[17]	N. R. Issaka, M. M. Buri, D. Asare,K. J. Senayah, A. M. Essien, “Effects of cropping system and mineral fertilizer on root yield of cassava,” Agric. Food Sci. J. Ghana, vol. 6, pp. 445-458, 2007.
[18]	B. Vanlauwe, P. Pypers, N. Sanginga, “The potential of integrated soil fertility management to improve the productivity of cassava-based systems,” In: Cassava: Meeting of the Challenges of the New Millennium: Proceedings of the First Scientific Meeting of the Global Cassava Partnership 21-25 July 2008, Ghent, Belgium. Institute of Plant Biotechnology for Developing Countries (IPBO), Ghent University, Ghent, Belgium, 2008.
[19]	H. R. Howeler, “Long-term effect of cassava cultivation on soil productivity,” Field Crop. Res, vol. 26, pp. 1-18, 1991.
[20]	B. P. Boakye, O. Kwadwo, K. Asante Isaac, Y. E. Parkes, “Performance of nine cassava (Manihot esculanta Crantz) clones across three environments. J. Plant Breed. Crop Sci, vol. 5, pp. 48-53, 2013.
[21]	G. Ssemakula, A. Dixon A, “Genotype X environment interaction, stability and agronomic performance of carotenoid-rich cassava clones,” Scientific Research and Essay. 2 (9)390-399, 2007.
[22]	Y. E. Parkes, K. F. D. Allotey, E. Lotsu, A. Akuffo, “Yield performance of five cassava genotypes under different fertilizer rates,” Intl. J. Agric. Sci, vol. 2, pp. 173-177, 2012.
[23]	IFA, International Fertilizer Agency, IFA World Fertilizer Use Manual. International Fertilizer Industry Association, Paris, 1992.
[24]	H. Saragoni, R. Olivier, R. Poss, “Dynamique et lixiviation des éléments minéraux,” Agron. Trop, vol. 45, pp. 259-273, 1991.
[25]	M. H.van Es, C.L. van Es, “Spatial nature of randomization and its effect on the outcome of field experiments,” Agron. J, vol. 85, pp. 420-428, 1993.
[26]	M. H.van Es, C. Gomes, M. Sellmann, C. L. van Es, “Spatially-balanced designs for experiments on autocorrelated fields,” In: 2004 Proc. Am. Statistical Assoc., Statistics & the Environment Section [CDROM], Alexandria, VA, 2004.
[27]	IITA, International Institute for Tropical Agriculture, “Automated and Semi-automated Methods for soil and plant analysis,” IITA, Ibadan, Nigeria, 2014.
[28]	SAS Institute. Base SAS 9.4 Procedures Guide. SAS Institute, Cary, NC, 2014.
[29]	K. B. Tossah, “Influence of soil properties and organic inputs on phosphorus cycling in herbaceous legume-based cropping systems in the West African derived savanna,” Ph.D. Thesis No. 428, K.U. Leuven, Belgium, 2000.
[30]	T. B. Kang, E. J. Okeke, “Nitrogen andpotassium responses of two cassava varieties grown on an alfisol in southern Nigeria,” In: Proceedings, 6th symposium of the International Society of Tropical Root Crops, 1984, Lima, Peru, pp. 231–234, 1984.
[31]	D. K. Asare, E. O. Ayeh, G. Amenorpe, “Response of rainfed cassava to methods of application of fertilizer-nitrogen in a coastal savannah environment of Ghana,” World J. Agric. Sci, vol. 5, pp. 323-327, 2009.
[32]	P. B. Boakye, O. Kwadwo, K. Asante Isaac, E. Y. Parkes, “Performance of nine cassava (Manihot esculanta Crantz) clones across three environments,” J. Plant Breed. Crop Sci, Vol. 5, pp. 48-53, 2013.
[33]	D. A. Okpara, U. S. Agoha, M. Iroegbu, “Response of cassava variety TMS/98/0505 to potassium fertilization and time of harvest in South Eastern Nigeria,” Nigeria Agric. J, vol. 41, pp. 91-100, 2010.
[34]	H. R. Howeler, L. F. Cadavid, “Short- and long-term fertility trials in Colombia to determine the nutrient requirements of cassava,” Fert. Res, vol. 26, pp. 61-80, 1990.
[35]	E. Sagrilo, P. S. V. Filho, M. G. Pequeno, M. C. Gonçalves-Vidigal, M. V. Kvitschal, “Dry matter production and distribution in three Cassava (Manihot esculenta Crantz) cultivars during the Second vegetative plant ycle,” Braz. arch. biol. technol, vol.51, pp.1079-1087, 2008.
[36]	G. C. Daellenbach, P. C. Kerridge, M.S. Wolfe, E. Frossardb, M.R. Finckhd, “Plant productivity in cassava-based mixed cropping systems in Colombian hillside farms,” Agric. Ecosyst. Environ, 105, pp. 595–614, 2005.

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Jean Mianikpo Sogbedji, Lakpo Kokou Agboyi, Kodjovi Sotomè Detchinli, Ruth Atchoglo, Mihikouwe Mazinagou. (2015). Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes. Journal of Plant Sciences, 3(3), 117-122. https://doi.org/10.11648/j.jps.20150303.12

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Jean Mianikpo Sogbedji; Lakpo Kokou Agboyi; Kodjovi Sotomè Detchinli; Ruth Atchoglo; Mihikouwe Mazinagou. Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes. J. Plant Sci. 2015, 3(3), 117-122. doi: 10.11648/j.jps.20150303.12

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AMA Style

Jean Mianikpo Sogbedji, Lakpo Kokou Agboyi, Kodjovi Sotomè Detchinli, Ruth Atchoglo, Mihikouwe Mazinagou. Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes. J Plant Sci. 2015;3(3):117-122. doi: 10.11648/j.jps.20150303.12

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@article{10.11648/j.jps.20150303.12,
  author = {Jean Mianikpo Sogbedji and Lakpo Kokou Agboyi and Kodjovi Sotomè Detchinli and Ruth Atchoglo and Mihikouwe Mazinagou},
  title = {Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes},
  journal = {Journal of Plant Sciences},
  volume = {3},
  number = {3},
  pages = {117-122},
  doi = {10.11648/j.jps.20150303.12},
  url = {https://doi.org/10.11648/j.jps.20150303.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20150303.12},
  abstract = {Improved nutrient use efficiency and use of appropriate crop varieties are required towards producing enough food in a sustainable manner. This study assessed the response of three cassava (Manihot esculenta Crantz) varieties to three potassium (K) fertilization rates on West African ferralsols. It aimed at identifying optimal K fertilizer application rates and corresponding appropriate crop varieties for improved and sustainable cassava production. Three K fertilizer rates including 0, 50 and 100 kg K ha-1 were used together with fertilizers nitrogen (N) and phosphorus (P) each at a fixed rate of 60 kg ha-1. The cassava varieties were Gbazekoute (V1), KH (V2) and Moya (V3). Field data including cassava fresh tuber and stover yields, and harvest index (HI) were collected from the 2-yr experiment in which treatments were arranged in a split-plot design, with varieties as main plots and K fertilizer rate as subplots. Mean fresh tuber yield under Gbazekoute (65.5 Mg ha-1) increased by 68.4 and 44.3% as compared with KH (38.9 Mg ha-1) and Moya (45.4 Mg ha-1), respectively, while yield under Moya was superior to that of KH by 16.7%, indicating that tuber yield potential was highest, intermediate and lowest for V1, V3 and V2, respectively. Mean stover yield under Gbazekoute (52.2 Mg ha-1) decreased by 12.6 and 18.7% as compared with KH (59.7 Mg ha-1) and Moya (64.2 Mg ha-1), respectively. Mean harvest index values increased under Gbazekoute (55.7%) by 41 and 34.5 % as compared with KH (39.5%) and Moya (41.4%), respectively, and value under KH was 4.6% lower than that for Moya. The three varieties were responsive to applied fertilizer K rate with the response being highest, intermediate and lowest for the KH, Moya and Gbazekoute, respectively. For the three varieties, the optimum K fertilizer application rate was 50 kg K ha-1. Gbazekoute proved superior over KH and Moya in efficiently allocating assimilates to storage roots at the expenses of the stover. The use of 50 kg K ha-1 together with 60 kg N ha-1 and 60 kg P ha-1 (N60P60K50 kg ha-1) under the Gbazekoute may be a recommended practice towards sustaining improved cassava production on the inherently degraded West African ferralsols.},
 year = {2015}
}

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TY  - JOUR
T1  - Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes
AU  - Jean Mianikpo Sogbedji
AU  - Lakpo Kokou Agboyi
AU  - Kodjovi Sotomè Detchinli
AU  - Ruth Atchoglo
AU  - Mihikouwe Mazinagou
Y1  - 2015/04/24
PY  - 2015
N1  - https://doi.org/10.11648/j.jps.20150303.12
DO  - 10.11648/j.jps.20150303.12
T2  - Journal of Plant Sciences
JF  - Journal of Plant Sciences
JO  - Journal of Plant Sciences
SP  - 117
EP  - 122
PB  - Science Publishing Group
SN  - 2331-0731
UR  - https://doi.org/10.11648/j.jps.20150303.12
AB  - Improved nutrient use efficiency and use of appropriate crop varieties are required towards producing enough food in a sustainable manner. This study assessed the response of three cassava (Manihot esculenta Crantz) varieties to three potassium (K) fertilization rates on West African ferralsols. It aimed at identifying optimal K fertilizer application rates and corresponding appropriate crop varieties for improved and sustainable cassava production. Three K fertilizer rates including 0, 50 and 100 kg K ha-1 were used together with fertilizers nitrogen (N) and phosphorus (P) each at a fixed rate of 60 kg ha-1. The cassava varieties were Gbazekoute (V1), KH (V2) and Moya (V3). Field data including cassava fresh tuber and stover yields, and harvest index (HI) were collected from the 2-yr experiment in which treatments were arranged in a split-plot design, with varieties as main plots and K fertilizer rate as subplots. Mean fresh tuber yield under Gbazekoute (65.5 Mg ha-1) increased by 68.4 and 44.3% as compared with KH (38.9 Mg ha-1) and Moya (45.4 Mg ha-1), respectively, while yield under Moya was superior to that of KH by 16.7%, indicating that tuber yield potential was highest, intermediate and lowest for V1, V3 and V2, respectively. Mean stover yield under Gbazekoute (52.2 Mg ha-1) decreased by 12.6 and 18.7% as compared with KH (59.7 Mg ha-1) and Moya (64.2 Mg ha-1), respectively. Mean harvest index values increased under Gbazekoute (55.7%) by 41 and 34.5 % as compared with KH (39.5%) and Moya (41.4%), respectively, and value under KH was 4.6% lower than that for Moya. The three varieties were responsive to applied fertilizer K rate with the response being highest, intermediate and lowest for the KH, Moya and Gbazekoute, respectively. For the three varieties, the optimum K fertilizer application rate was 50 kg K ha-1. Gbazekoute proved superior over KH and Moya in efficiently allocating assimilates to storage roots at the expenses of the stover. The use of 50 kg K ha-1 together with 60 kg N ha-1 and 60 kg P ha-1 (N60P60K50 kg ha-1) under the Gbazekoute may be a recommended practice towards sustaining improved cassava production on the inherently degraded West African ferralsols.
VL  - 3
IS  - 3
ER  -

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Author Information

Jean Mianikpo Sogbedji

School of Agronomy, University of Lome, Lome, Togo
Lakpo Kokou Agboyi

Togolese Institute of Agronomic Research, Lome, Togo
Kodjovi Sotomè Detchinli

School of Agronomy, University of Lome, Lome, Togo
Ruth Atchoglo

School of Agronomy, University of Lome, Lome, Togo
Mihikouwe Mazinagou

School of Agronomy, University of Lome, Lome, Togo

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Jean Mianikpo Sogbedji, Lakpo Kokou Agboyi, Kodjovi Sotomè Detchinli, Ruth Atchoglo, Mihikouwe Mazinagou. (2015). Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes. Journal of Plant Sciences, 3(3), 117-122. https://doi.org/10.11648/j.jps.20150303.12

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Jean Mianikpo Sogbedji; Lakpo Kokou Agboyi; Kodjovi Sotomè Detchinli; Ruth Atchoglo; Mihikouwe Mazinagou. Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes. J. Plant Sci. 2015, 3(3), 117-122. doi: 10.11648/j.jps.20150303.12

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AMA Style

Jean Mianikpo Sogbedji, Lakpo Kokou Agboyi, Kodjovi Sotomè Detchinli, Ruth Atchoglo, Mihikouwe Mazinagou. Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes. J Plant Sci. 2015;3(3):117-122. doi: 10.11648/j.jps.20150303.12

Copy | Download

@article{10.11648/j.jps.20150303.12,
  author = {Jean Mianikpo Sogbedji and Lakpo Kokou Agboyi and Kodjovi Sotomè Detchinli and Ruth Atchoglo and Mihikouwe Mazinagou},
  title = {Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes},
  journal = {Journal of Plant Sciences},
  volume = {3},
  number = {3},
  pages = {117-122},
  doi = {10.11648/j.jps.20150303.12},
  url = {https://doi.org/10.11648/j.jps.20150303.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20150303.12},
  abstract = {Improved nutrient use efficiency and use of appropriate crop varieties are required towards producing enough food in a sustainable manner. This study assessed the response of three cassava (Manihot esculenta Crantz) varieties to three potassium (K) fertilization rates on West African ferralsols. It aimed at identifying optimal K fertilizer application rates and corresponding appropriate crop varieties for improved and sustainable cassava production. Three K fertilizer rates including 0, 50 and 100 kg K ha-1 were used together with fertilizers nitrogen (N) and phosphorus (P) each at a fixed rate of 60 kg ha-1. The cassava varieties were Gbazekoute (V1), KH (V2) and Moya (V3). Field data including cassava fresh tuber and stover yields, and harvest index (HI) were collected from the 2-yr experiment in which treatments were arranged in a split-plot design, with varieties as main plots and K fertilizer rate as subplots. Mean fresh tuber yield under Gbazekoute (65.5 Mg ha-1) increased by 68.4 and 44.3% as compared with KH (38.9 Mg ha-1) and Moya (45.4 Mg ha-1), respectively, while yield under Moya was superior to that of KH by 16.7%, indicating that tuber yield potential was highest, intermediate and lowest for V1, V3 and V2, respectively. Mean stover yield under Gbazekoute (52.2 Mg ha-1) decreased by 12.6 and 18.7% as compared with KH (59.7 Mg ha-1) and Moya (64.2 Mg ha-1), respectively. Mean harvest index values increased under Gbazekoute (55.7%) by 41 and 34.5 % as compared with KH (39.5%) and Moya (41.4%), respectively, and value under KH was 4.6% lower than that for Moya. The three varieties were responsive to applied fertilizer K rate with the response being highest, intermediate and lowest for the KH, Moya and Gbazekoute, respectively. For the three varieties, the optimum K fertilizer application rate was 50 kg K ha-1. Gbazekoute proved superior over KH and Moya in efficiently allocating assimilates to storage roots at the expenses of the stover. The use of 50 kg K ha-1 together with 60 kg N ha-1 and 60 kg P ha-1 (N60P60K50 kg ha-1) under the Gbazekoute may be a recommended practice towards sustaining improved cassava production on the inherently degraded West African ferralsols.},
 year = {2015}
}

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TY  - JOUR
T1  - Sustaining Improved Cassava Production on West African Ferralsols Through Appropriate Varieties and Optimal Potassium Fertilization Schemes
AU  - Jean Mianikpo Sogbedji
AU  - Lakpo Kokou Agboyi
AU  - Kodjovi Sotomè Detchinli
AU  - Ruth Atchoglo
AU  - Mihikouwe Mazinagou
Y1  - 2015/04/24
PY  - 2015
N1  - https://doi.org/10.11648/j.jps.20150303.12
DO  - 10.11648/j.jps.20150303.12
T2  - Journal of Plant Sciences
JF  - Journal of Plant Sciences
JO  - Journal of Plant Sciences
SP  - 117
EP  - 122
PB  - Science Publishing Group
SN  - 2331-0731
UR  - https://doi.org/10.11648/j.jps.20150303.12
AB  - Improved nutrient use efficiency and use of appropriate crop varieties are required towards producing enough food in a sustainable manner. This study assessed the response of three cassava (Manihot esculenta Crantz) varieties to three potassium (K) fertilization rates on West African ferralsols. It aimed at identifying optimal K fertilizer application rates and corresponding appropriate crop varieties for improved and sustainable cassava production. Three K fertilizer rates including 0, 50 and 100 kg K ha-1 were used together with fertilizers nitrogen (N) and phosphorus (P) each at a fixed rate of 60 kg ha-1. The cassava varieties were Gbazekoute (V1), KH (V2) and Moya (V3). Field data including cassava fresh tuber and stover yields, and harvest index (HI) were collected from the 2-yr experiment in which treatments were arranged in a split-plot design, with varieties as main plots and K fertilizer rate as subplots. Mean fresh tuber yield under Gbazekoute (65.5 Mg ha-1) increased by 68.4 and 44.3% as compared with KH (38.9 Mg ha-1) and Moya (45.4 Mg ha-1), respectively, while yield under Moya was superior to that of KH by 16.7%, indicating that tuber yield potential was highest, intermediate and lowest for V1, V3 and V2, respectively. Mean stover yield under Gbazekoute (52.2 Mg ha-1) decreased by 12.6 and 18.7% as compared with KH (59.7 Mg ha-1) and Moya (64.2 Mg ha-1), respectively. Mean harvest index values increased under Gbazekoute (55.7%) by 41 and 34.5 % as compared with KH (39.5%) and Moya (41.4%), respectively, and value under KH was 4.6% lower than that for Moya. The three varieties were responsive to applied fertilizer K rate with the response being highest, intermediate and lowest for the KH, Moya and Gbazekoute, respectively. For the three varieties, the optimum K fertilizer application rate was 50 kg K ha-1. Gbazekoute proved superior over KH and Moya in efficiently allocating assimilates to storage roots at the expenses of the stover. The use of 50 kg K ha-1 together with 60 kg N ha-1 and 60 kg P ha-1 (N60P60K50 kg ha-1) under the Gbazekoute may be a recommended practice towards sustaining improved cassava production on the inherently degraded West African ferralsols.
VL  - 3
IS  - 3
ER  -

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