Integrated Soil Fertility Management for Increased Maize Production in the Degraded Farmlands of the Guinea Savanna Zone of Ghana Using Devil-Bean (Crotalaria retusa) and Fertilizer Nitrogen

Ahiabor, B. D. K.; Fosu, Mathias; Atsu, E.; Tibo, I.; Sumaila, I.

doi:10.1007/978-90-481-2543-2_17

Cited by 4 publications

(4 citation statements)

References 16 publications

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“…Groundnut haulms after harvest have a high economic value as they are sold to livestock farmers. The haulms also contain high amounts of nitrogen which has the potential to improve soil fertility when incorporated into the soil [22]. Therefore, groundnut varieties that combine high haulm yield with high pod yield are very desirable for farmers in the Guinea savanna agroecology of Ghana.…”

Section: Mean Performance Of Genotypesmentioning

confidence: 99%

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Evaluation of Selected Groundnut (Arachis hypogaea L.) Lines for Yield and Haulm Nutritive Quality Traits

Oteng‐Frimpong

Konlan²,

Denwar

2017

International Journal of Agronomy

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Groundnut, the most important grain legume in Ghana, is largely cultivated under rainfed conditions within the Guinea savanna zone of the country. The pods and haulms are important sources of income for smallholder farmers in the region. There is an emerging market for groundnut haulms as livestock feed in Ghana. A population of 30 groundnut genotypes were evaluated for yield (pod and haulm) and its components as well as good haulm nutritive value. High significant differences were observed among the genotypes for all agronomic traits. Average pod yield ranged from 1.6 to 5.7 t/ha with SAMNUT 23 and ICGV-IS 13081 being the most productive. Eight out of the 30 genotypes produced haulm yields above 8 t/ha. There was no significant difference among genotypes for in vitro gas production, digestible organic matter, ash, neutral detergent fibre, and metabolizable energy. However, crude protein, crude fibre, and acid detergent fibre were significantly different. Crude protein content was highest (12.53%) in GAF 1723 and lowest (8.00%) in ICGV-IS 08837. Genotypes GAF 1723, ICGV 00064, and ICGV-IS 13998 combined good pod/haulm yield with high haulm nutritive quality. Their utilization will improve farmers' income and livelihoods in the Guinea savanna of Ghana.

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Section: Mean Performance Of Genotypesmentioning

confidence: 99%

“…Aflatoxins produced by Aspergillus flavus and A. parasiticus also reduce grain quality resulting in lower incomes for farmers [18,19]. The abiotic constraints include poor soil fertility (lower levels of N, P, and Ca) and erratic rainfall which results in intermittent drought [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Selected Groundnut (Arachis hypogaea L.) Lines for Yield and Haulm Nutritive Quality Traits

Oteng‐Frimpong

Konlan²,

Denwar

2017

International Journal of Agronomy

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“…In a previous study reported by [11], it was suggested that groundnut varieties that combine high haulm yield with high pod yield are very desirable for farmers in the Guinea savannah agroecology of Ghana. In earlier work by [42,43], they enumerated the importance of groundnut haulms in the Guinea savannah agroecology of Ghana and stated that farmers use them for feeding livestock. They contain high amounts of nitrogen, which has the potential to improve soil fertility when incorporated into the soil.…”

Section: Discussionmentioning

confidence: 99%

Participatory On-Farm Evaluation of Improved Groundnut Genotypes in the Guinea Savannah Agro-Ecological Zone of Ghana

Amoako,

Oteng-Frimpong,

Yirzagla

et al. 2023

Agriculture

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The on-farm mother–baby trial experimental approach was employed to evaluate the performance of elite groundnut genotypes on farmers’ fields in the Guinea savannah agroecology of Ghana in the 2020 and 2021 cropping seasons. Analysis of the data from the mother trial revealed significant (p < 0.05) genotypic differences for the traits measured over the two years. The genotype ICGV-IS 13842 reached physiological maturity in 88 days and was identified as the genotype with the shortest maturity period. However, in terms of pod yield and its associated components, genotype ICGV-IS 13864 emerged as the best from the mother trial. During farmer evaluation of the materials, genotype ICGV-IS 13979 was selected as the most preferred in addition to genotypes ICGV-IS 13864 and ICGV-IS 131090. The genotypes ICGV-IS 13864 and ICGV-IS 131090 were observed to combine both high pod yield and high haulm yield. These two traits were identified as very important by the farmers who participated in the study as the haulms serve as fodder for their animals and fetch additional household income when sold with the pods harvested. The preference for genotype ICGV-IS 13842, an early maturing genotype, can be seen as an indication of farmers responding to the changing growing season due to erratic rainfall. However, if genotypes ICGV-IS 13864 and ICGV-IS 131090 are combined with some water management practices in the future, they could potentially withstand the changing growing season. Economic analysis showed that the improved genotypes had a greater net return on investment and higher cost–benefit ratio ranging from 2.74 to 4.84 across both years.

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“…However, N is limiting in most agricultural areas around the world, in spite of its abundance as N 2 in the atmosphere (Unkovich et al 2008 ; Oldroyd et al 2011 ). In Ghana, N and P are the most limiting plant nutrient in the Guinea savanna agro-ecology (Ahiabor et al 2011 ). So, the ability of grain legumes to establish effective symbiosis with soil bacteria of the genera Rhizobium and Bradyrhizobium and fix atmospheric N 2 provides legume species with an unlimited supply of symbiotic N (Unkovich et al 2008 ; Oldroyd et al 2011 ; Miransari et al 2013 ; Vitousek et al 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Selecting elite groundnut (Arachis hypogaea L) genotypes for symbiotic N nutrition, water-use efficiency and pod yield at three field sites, using 15N and 13C natural abundance

Oteng‐Frimpong

Dakora

2017

Symbiosis

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About 70% of the groundnut (Arachis hypogaea L.) produced in Ghana is from the Guinea savanna. However, low soil nutrients, especially N, together with erratic rainfall distribution have often resulted in poor grain yield. The aim of this study was to evaluate plant growth, N2-fixing efficiency, N contribution, water-use efficiency and pod yield of 21 elite groundnut genotypes in the Guinea savanna of Ghana, using the 15N natural abundance technique. The data revealed significant variations in plant growth, symbiotic N contribution, and pod yield among the 21 genotypes tested at each field site. Average N contribution by groundnut genotypes ranged from 48 to 108 kg N ha−1. Also, mean pod yield ranged from 0.58 to 2.1 t ha−1. Genotypes ICGV-IS 08837, ICG 6222, ICGV 03315 and NKATIESARI demonstrated superior plant growth, symbiotic N contribution and greater pod yield. In fact, ICGV-IS 08837 yielded almost 2.5 fold more than CHINESE which is the most widely cultivated variety in the region. Genotypes ICGV-IS 08837, ICG 6222, ICGV 03315 and ICGV 99247 are therefore recommended for development into varieties for the Guinea savanna of Ghana. Genotypes ICG (FDRS) 4, ICGV00362 and ICGV99247 exhibited increased water-use efficiency, but were low in N2 fixation and N contribution, and would therefore be good parental material in breeding programs aimed at enhancing water-use efficiency in high N2-fixing genotypes.

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Integrated Soil Fertility Management for Increased Maize Production in the Degraded Farmlands of the Guinea Savanna Zone of Ghana Using Devil-Bean (Crotalaria retusa) and Fertilizer Nitrogen

Cited by 4 publications

References 16 publications

Evaluation of Selected Groundnut (Arachis hypogaea L.) Lines for Yield and Haulm Nutritive Quality Traits

Evaluation of Selected Groundnut (Arachis hypogaea L.) Lines for Yield and Haulm Nutritive Quality Traits

Participatory On-Farm Evaluation of Improved Groundnut Genotypes in the Guinea Savannah Agro-Ecological Zone of Ghana

Selecting elite groundnut (Arachis hypogaea L) genotypes for symbiotic N nutrition, water-use efficiency and pod yield at three field sites, using 15N and 13C natural abundance

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