Farmers nutrient management practices in indigenous cropping systems in southern Cameroon

With increasing population densities, food production needs to be increased. A common response of farmers is to shorten fallow periods, which can lead to a decline in crop yields, due to incomplete nutrient replenishment. However, whether farmers change their management of soil and nutrients accordi...

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Autores principales: Buttner, U., Hauser, S.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Elsevier 2003
Materias:
Acceso en línea:https://hdl.handle.net/10568/92770
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author Buttner, U.
Hauser, S.
author_browse Buttner, U.
Hauser, S.
author_facet Buttner, U.
Hauser, S.
author_sort Buttner, U.
collection Repository of Agricultural Research Outputs (CGSpace)
description With increasing population densities, food production needs to be increased. A common response of farmers is to shorten fallow periods, which can lead to a decline in crop yields, due to incomplete nutrient replenishment. However, whether farmers change their management of soil and nutrients according to the fallow length is not known. A survey was carried out in southern Cameroon in 1995 to establish factors determining farmers’ nutrient management practices (NMPs). Three classes of indigenous NMPs were identified: crop placement, mulching, and the use of inputs. Crop placement comprised intentional cultivation of certain crops in ash patches or near to tree trunks and stumps. Mulching was done with weeds and crop residues, on the soil surface next to crops or in planting holes. Crop placement was found in 88.8% of fields and mulching in 57.4%, while inputs were used in only 1.7%. Nutrient management seemed to be restricted to an optimal allocation of crops to nutrient sources in the field. Relationships were weak between the frequency of crop placement or mulching and indices of land or labor availability. Fallow length seems to be negatively correlated to crop placement at rotten trunks or stumps or in ash patches and positively to placement near recently felled trees. Crop placement and mulching of crop residues were used less often in simplified crop associations than in traditional intercrops. Nutrient inputs were mainly given to monocrops. Application of purchased inputs concentrated on commercial crops. Most respondents knew the advantages and risks of currently practiced methods, but often lacked information on the use of locally available internal inputs (refuse, kitchen ash, manure). Application of internal inputs was considered too labor demanding. The use of purchased inputs was limited by high prices. Soil fertility was in most cases not regarded as a problem.
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spelling CGSpace927702025-01-24T14:12:30Z Farmers nutrient management practices in indigenous cropping systems in southern Cameroon Buttner, U. Hauser, S. nutrient management crop placement mulching inputs slash & burn cropping systems With increasing population densities, food production needs to be increased. A common response of farmers is to shorten fallow periods, which can lead to a decline in crop yields, due to incomplete nutrient replenishment. However, whether farmers change their management of soil and nutrients according to the fallow length is not known. A survey was carried out in southern Cameroon in 1995 to establish factors determining farmers’ nutrient management practices (NMPs). Three classes of indigenous NMPs were identified: crop placement, mulching, and the use of inputs. Crop placement comprised intentional cultivation of certain crops in ash patches or near to tree trunks and stumps. Mulching was done with weeds and crop residues, on the soil surface next to crops or in planting holes. Crop placement was found in 88.8% of fields and mulching in 57.4%, while inputs were used in only 1.7%. Nutrient management seemed to be restricted to an optimal allocation of crops to nutrient sources in the field. Relationships were weak between the frequency of crop placement or mulching and indices of land or labor availability. Fallow length seems to be negatively correlated to crop placement at rotten trunks or stumps or in ash patches and positively to placement near recently felled trees. Crop placement and mulching of crop residues were used less often in simplified crop associations than in traditional intercrops. Nutrient inputs were mainly given to monocrops. Application of purchased inputs concentrated on commercial crops. Most respondents knew the advantages and risks of currently practiced methods, but often lacked information on the use of locally available internal inputs (refuse, kitchen ash, manure). Application of internal inputs was considered too labor demanding. The use of purchased inputs was limited by high prices. Soil fertility was in most cases not regarded as a problem. 2003-12 2018-05-17T09:03:27Z 2018-05-17T09:03:27Z Journal Article https://hdl.handle.net/10568/92770 en Limited Access Elsevier Buttner, U. & Hauser, S. (2003). Farmers nutrient management practices in indigenous cropping systems in southern Cameroon. Agriculture, Ecosystems & Environment, 100(2-3), 103-110.
spellingShingle nutrient management
crop placement
mulching
inputs
slash & burn
cropping systems
Buttner, U.
Hauser, S.
Farmers nutrient management practices in indigenous cropping systems in southern Cameroon
title Farmers nutrient management practices in indigenous cropping systems in southern Cameroon
title_full Farmers nutrient management practices in indigenous cropping systems in southern Cameroon
title_fullStr Farmers nutrient management practices in indigenous cropping systems in southern Cameroon
title_full_unstemmed Farmers nutrient management practices in indigenous cropping systems in southern Cameroon
title_short Farmers nutrient management practices in indigenous cropping systems in southern Cameroon
title_sort farmers nutrient management practices in indigenous cropping systems in southern cameroon
topic nutrient management
crop placement
mulching
inputs
slash & burn
cropping systems
url https://hdl.handle.net/10568/92770
work_keys_str_mv AT buttneru farmersnutrientmanagementpracticesinindigenouscroppingsystemsinsoutherncameroon
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