Datum
2019-01-16Autor
Nwankwo, Charles IkennaMühlena, JanBiegert, KonniButzer, DianaNeumann, GünterSy, OusmaneHerrmann, LudgerSchlagwort
630 Landwirtschaft, VeterinärmedizinMetadata
Zur Langanzeige
Aufsatz
Physical and chemical optimisation of the seedball technology addressing pearl millet under Sahelian conditions
Zusammenfassung
This study deals with the development of the seedball technology in particular for dry sowing under Sahelian conditions and pearl millet as crop. At first, our participatory evaluation in Senegal showed that (i) local materials needed for seedball production are locally available, (ii) the technology conforms to the existing management systems in the Sahel, and (iii) socio-economic conditions do not hinder seedball adoption. Afterwards, seedball was mechanically and chemically optimised. Pearl millet seedlings derived from the seedball variants were grown and compared to the control under greenhouse conditions. Our results showed that the combination of 80 g sand + 50 g loam + 25 ml water is the standard seedball dough, which produces about ten 2 cm diameter-sized seedballs. Either 1 g NPK fertiliser or 3 g wood ash can be added as nutrient additive to enhance early biomass of pearl millet seedlings. Ammonium fertiliser, urea and gum arabic as seedball components hampered seedlings emergence. Seedball + 3 g wood ash and seedball + 1 g NPK-treatments enhanced shoot biomass by 60 % and 75 %, root biomass by 36 % and 94 %, and root length density by 14 % and 28 %, respectively, relative to the control. Shoot nutrient content was not greatly influenced by treatment. However, multiplying biomass yield with nutrient content indicates that nutrient extraction was higher in nutrient-amended seedballs. On-station field tests in Senegal showed over 95 % emergence under real Sahelian conditions. Since early seedlings enhancement is decisive for pearl millet panicle yield under the Sahelian conditions, on-farm trials in the Sahel are recommended.
Zitierform
In: Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS) Vol. 119 / No. 2 (2019-01-16) , S. 67-79 ; 1612-9830Zusätzliche Informationen
Gedruckte Ausg. im Verlag Kassel Univ. Press (www.upress.uni-kassel.de) erschienen.Sammlung(en)
Vol 119, No 2 (2018) (Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS))Zitieren
@article{doi:10.17170/kobra-2019011596,
author={Nwankwo, Charles Ikenna and Mühlena, Jan and Biegert, Konni and Butzer, Diana and Neumann, Günter and Sy, Ousmane and Herrmann, Ludger},
title={Physical and chemical optimisation of the seedball technology addressing pearl millet under Sahelian conditions},
journal={Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS)},
year={2019}
}
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2019-01-18T16:43:21Z 2019-01-18T16:43:21Z 2019-01-16 doi:10.17170/kobra-2019011596 http://hdl.handle.net/123456789/11030 Gedruckte Ausg. im Verlag Kassel Univ. Press (www.upress.uni-kassel.de) erschienen. eng Kassel University Press Urheberrechtlich geschützt https://rightsstatements.org/page/InC/1.0/ Pearl millet early growth seedball technology local resources dry sowing seedling emergence subsistence farming smallholder farmer cheap seed pelleting technique 630 Physical and chemical optimisation of the seedball technology addressing pearl millet under Sahelian conditions Aufsatz This study deals with the development of the seedball technology in particular for dry sowing under Sahelian conditions and pearl millet as crop. At first, our participatory evaluation in Senegal showed that (i) local materials needed for seedball production are locally available, (ii) the technology conforms to the existing management systems in the Sahel, and (iii) socio-economic conditions do not hinder seedball adoption. Afterwards, seedball was mechanically and chemically optimised. Pearl millet seedlings derived from the seedball variants were grown and compared to the control under greenhouse conditions. Our results showed that the combination of 80 g sand + 50 g loam + 25 ml water is the standard seedball dough, which produces about ten 2 cm diameter-sized seedballs. Either 1 g NPK fertiliser or 3 g wood ash can be added as nutrient additive to enhance early biomass of pearl millet seedlings. Ammonium fertiliser, urea and gum arabic as seedball components hampered seedlings emergence. Seedball + 3 g wood ash and seedball + 1 g NPK-treatments enhanced shoot biomass by 60 % and 75 %, root biomass by 36 % and 94 %, and root length density by 14 % and 28 %, respectively, relative to the control. Shoot nutrient content was not greatly influenced by treatment. However, multiplying biomass yield with nutrient content indicates that nutrient extraction was higher in nutrient-amended seedballs. On-station field tests in Senegal showed over 95 % emergence under real Sahelian conditions. Since early seedlings enhancement is decisive for pearl millet panicle yield under the Sahelian conditions, on-farm trials in the Sahel are recommended. open access Nwankwo, Charles Ikenna Mühlena, Jan Biegert, Konni Butzer, Diana Neumann, Günter Sy, Ousmane Herrmann, Ludger publishedVersion 1612-9830 2363-6033 No. 2 Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS) 67-79 Vol. 119
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