Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon
In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. Thi...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Massai Tchima Jacob [verfasserIn] Babe Ndara Gregoire [verfasserIn] Maigari Pale [verfasserIn] Djouka Nembot Pélagie [verfasserIn] Ibrahima Adamou [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Journal of Degraded and Mining Lands Management - University of Brawijaya, 2014, 7(2020), 2, Seite 2065-2073 |
|---|---|
| Übergeordnetes Werk: |
volume:7 ; year:2020 ; number:2 ; pages:2065-2073 |
| Links: |
|---|
| DOI / URN: |
10.15243/jdmlm.2020.072.2065 |
|---|
| Katalog-ID: |
DOAJ06806716X |
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| 520 | |a In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. | ||
| 650 | 4 | |a biodiversity | |
| 650 | 4 | |a litter decomposition | |
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| 650 | 4 | |a nutrients release | |
| 650 | 4 | |a savannas | |
| 653 | 0 | |a Environmental effects of industries and plants | |
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| 700 | 0 | |a Ibrahima Adamou |e verfasserin |4 aut | |
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10.15243/jdmlm.2020.072.2065 doi (DE-627)DOAJ06806716X (DE-599)DOAJ2077e6007f074ac6a693f9b43a5a4d19 DE-627 ger DE-627 rakwb eng TD194-195 Massai Tchima Jacob verfasserin aut Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. biodiversity litter decomposition litter mixtures nutrients release savannas Environmental effects of industries and plants Babe Ndara Gregoire verfasserin aut Maigari Pale verfasserin aut Djouka Nembot Pélagie verfasserin aut Ibrahima Adamou verfasserin aut In Journal of Degraded and Mining Lands Management University of Brawijaya, 2014 7(2020), 2, Seite 2065-2073 (DE-627)1760598577 25022458 nnns volume:7 year:2020 number:2 pages:2065-2073 https://doi.org/10.15243/jdmlm.2020.072.2065 kostenfrei https://doaj.org/article/2077e6007f074ac6a693f9b43a5a4d19 kostenfrei https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/624 kostenfrei https://doaj.org/toc/2339-076X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 7 2020 2 2065-2073 |
| spelling |
10.15243/jdmlm.2020.072.2065 doi (DE-627)DOAJ06806716X (DE-599)DOAJ2077e6007f074ac6a693f9b43a5a4d19 DE-627 ger DE-627 rakwb eng TD194-195 Massai Tchima Jacob verfasserin aut Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. biodiversity litter decomposition litter mixtures nutrients release savannas Environmental effects of industries and plants Babe Ndara Gregoire verfasserin aut Maigari Pale verfasserin aut Djouka Nembot Pélagie verfasserin aut Ibrahima Adamou verfasserin aut In Journal of Degraded and Mining Lands Management University of Brawijaya, 2014 7(2020), 2, Seite 2065-2073 (DE-627)1760598577 25022458 nnns volume:7 year:2020 number:2 pages:2065-2073 https://doi.org/10.15243/jdmlm.2020.072.2065 kostenfrei https://doaj.org/article/2077e6007f074ac6a693f9b43a5a4d19 kostenfrei https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/624 kostenfrei https://doaj.org/toc/2339-076X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 7 2020 2 2065-2073 |
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10.15243/jdmlm.2020.072.2065 doi (DE-627)DOAJ06806716X (DE-599)DOAJ2077e6007f074ac6a693f9b43a5a4d19 DE-627 ger DE-627 rakwb eng TD194-195 Massai Tchima Jacob verfasserin aut Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. biodiversity litter decomposition litter mixtures nutrients release savannas Environmental effects of industries and plants Babe Ndara Gregoire verfasserin aut Maigari Pale verfasserin aut Djouka Nembot Pélagie verfasserin aut Ibrahima Adamou verfasserin aut In Journal of Degraded and Mining Lands Management University of Brawijaya, 2014 7(2020), 2, Seite 2065-2073 (DE-627)1760598577 25022458 nnns volume:7 year:2020 number:2 pages:2065-2073 https://doi.org/10.15243/jdmlm.2020.072.2065 kostenfrei https://doaj.org/article/2077e6007f074ac6a693f9b43a5a4d19 kostenfrei https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/624 kostenfrei https://doaj.org/toc/2339-076X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 7 2020 2 2065-2073 |
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10.15243/jdmlm.2020.072.2065 doi (DE-627)DOAJ06806716X (DE-599)DOAJ2077e6007f074ac6a693f9b43a5a4d19 DE-627 ger DE-627 rakwb eng TD194-195 Massai Tchima Jacob verfasserin aut Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. biodiversity litter decomposition litter mixtures nutrients release savannas Environmental effects of industries and plants Babe Ndara Gregoire verfasserin aut Maigari Pale verfasserin aut Djouka Nembot Pélagie verfasserin aut Ibrahima Adamou verfasserin aut In Journal of Degraded and Mining Lands Management University of Brawijaya, 2014 7(2020), 2, Seite 2065-2073 (DE-627)1760598577 25022458 nnns volume:7 year:2020 number:2 pages:2065-2073 https://doi.org/10.15243/jdmlm.2020.072.2065 kostenfrei https://doaj.org/article/2077e6007f074ac6a693f9b43a5a4d19 kostenfrei https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/624 kostenfrei https://doaj.org/toc/2339-076X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 7 2020 2 2065-2073 |
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10.15243/jdmlm.2020.072.2065 doi (DE-627)DOAJ06806716X (DE-599)DOAJ2077e6007f074ac6a693f9b43a5a4d19 DE-627 ger DE-627 rakwb eng TD194-195 Massai Tchima Jacob verfasserin aut Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. biodiversity litter decomposition litter mixtures nutrients release savannas Environmental effects of industries and plants Babe Ndara Gregoire verfasserin aut Maigari Pale verfasserin aut Djouka Nembot Pélagie verfasserin aut Ibrahima Adamou verfasserin aut In Journal of Degraded and Mining Lands Management University of Brawijaya, 2014 7(2020), 2, Seite 2065-2073 (DE-627)1760598577 25022458 nnns volume:7 year:2020 number:2 pages:2065-2073 https://doi.org/10.15243/jdmlm.2020.072.2065 kostenfrei https://doaj.org/article/2077e6007f074ac6a693f9b43a5a4d19 kostenfrei https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/624 kostenfrei https://doaj.org/toc/2339-076X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 7 2020 2 2065-2073 |
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This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. 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Massai Tchima Jacob |
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Massai Tchima Jacob misc TD194-195 misc biodiversity misc litter decomposition misc litter mixtures misc nutrients release misc savannas misc Environmental effects of industries and plants Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon |
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TD194-195 Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon biodiversity litter decomposition litter mixtures nutrients release savannas |
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Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon |
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Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon |
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effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in sudano-guinean savannah of ngadoundere, adamawa cameroon |
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Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon |
| abstract |
In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. |
| abstractGer |
In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. |
| abstract_unstemmed |
In order to maintain or improve the soil fertility of agricultural systems in Ngaoundere, an experiment on the decomposition of simple litters and mixtures of Harungana madagascariens, Vitelaria paradoxa and Syzygium guineense var. macrocarpum was conducted in a field using the litterbag method. This experiment was made of single species and their mixtures of which gave three uneven mixtures (5VP, 5HM and 5SM) and one even mixture (3E) amounting to seven treatments (THM, TVP, TSM, 3E, 5HM, 5VP, and 5SM). The experimental design was a completely randomized block with three replications. 126 samples of 10 g each were introduced in a field for 24 weeks and a deduction of 3 samples was made at 2, 4, 6, 10, 16 and 24 weeks. The remaining dry mass, rates of decomposition, half time and the nutrient release in the soil were determined. The results showed that the remaining dry mass varied from 67.95% in TSM (S. guineense) to 22.02% in TVP (V. paradoxa). The rate of decomposition ranged from 0.033 for 5SM (mixture 50% of S. guineense and 25% for each of the two other species) to 0.055 in 3E with respectively 19, 64 to 12, 56 as a half-time. The initial chemical content and that at the end of the experiment of the simple and mixed litters varied significantly within the treatments. The mixture of litter released more nitrogen and carbon than the individual litter and the pattern was ranged as follow 3E<5VP<5HM<5SM<TVP<THM<TSM. The pattern of phosphorus release in the soil was ranged in the following order: TVP<TSM<THM<5VP<3E<5HM<5SM, indicating that the individual litter released more phosphorus on the soil than their mixture. These preliminary results will not only contribute in the comprehension of the decomposition process mechanism of Ngaoundere but also will permit in choosing the type of the litter and mixture with release more nutrient in the soil for improvement of agricultural system fertility. |
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Effect of litter mixture on litter decomposition and nutrient release of three agroforestry species in Sudano-Guinean savannah of Ngadoundere, Adamawa Cameroon |
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