Organic amendments which were mixed with sieved (2mm) air-dry sol/ at the rete o/ 3% Included poultry manure and 4:11 and 1:1 mixtures of poultry manure and corn L,) stew or sawdust obtained from Canarium schweinfurthii (Engl.) respectively, The treatment, Including control, were Incubated for 8 wee...
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| Formato: | Online |
| Idioma: | inglês |
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The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.
2020
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| Acesso em linha: | https://ija.oauife.edu.ng/index.php/ija/article/view/515 |
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| author | OLAYLNKA, AKINYOMI |
| author_facet | OLAYLNKA, AKINYOMI |
| author_sort | OLAYLNKA, AKINYOMI |
| collection | OJS |
| description | Organic amendments which were mixed with sieved (2mm) air-dry sol/ at the rete o/ 3% Included poultry manure and 4:11 and 1:1 mixtures of poultry manure and corn L,) stew or sawdust obtained from Canarium schweinfurthii (Engl.) respectively, The treatment, Including control, were Incubated for 8 weeks at 3000 In the laboratory, Amounts of C evolved as C02 which 18 an index of C mineralization were determined weekly.
The Incorporation of organic amendments Increased the amount of C mineralized from the treatments, Two peeks of C evolution were observed at the ends of the 1st and 3rd weeks, The first peek was probably due to the easily oxidizable C while the second peak was the result of the activity of microorganisms adaptable to the more recalcitrant C fractions. Carbon evolution from poultry manure-straw/sawdust treatments were significantly higher (32-85%) than in the presence of poultry manure alone. Both the mean rates and cumulative amounts of C mineralized generally increased with increasing contents of straw and sawdust. However, the type of plant residue mixed with poultry manure did not significantly influence the amounts of C mineralized at the comparative rates of addition. The % of added C mineralized decreased with increasing contents of straw and sawdust.
Correlation studies showed that the C/N ratios of the amendments had significant negative effect (r = 0.91) on the degree of C mineralization in soil. Carbon/nitrogen ratio had no significant effect on the cumulative amounts of C mineralized. These results indicate the importance of C/N ratio to the rate of decomposition of organic amendments in soil. |
| format | Online |
| id | oai:ojs2.ija.oauife.edu.ng:article-515 |
| institution | My University |
| language | eng |
| publishDate | 2020 |
| publisher | The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. |
| record_format | ojs |
| spelling | oai:ojs2.ija.oauife.edu.ng:article-5152020-10-07T11:14:13Z OLAYLNKA, AKINYOMI Organic amendments, poultry manure, C mineralization, C evolution, oxidizable C, C/N ratio Organic amendments which were mixed with sieved (2mm) air-dry sol/ at the rete o/ 3% Included poultry manure and 4:11 and 1:1 mixtures of poultry manure and corn L,) stew or sawdust obtained from Canarium schweinfurthii (Engl.) respectively, The treatment, Including control, were Incubated for 8 weeks at 3000 In the laboratory, Amounts of C evolved as C02 which 18 an index of C mineralization were determined weekly. The Incorporation of organic amendments Increased the amount of C mineralized from the treatments, Two peeks of C evolution were observed at the ends of the 1st and 3rd weeks, The first peek was probably due to the easily oxidizable C while the second peak was the result of the activity of microorganisms adaptable to the more recalcitrant C fractions. Carbon evolution from poultry manure-straw/sawdust treatments were significantly higher (32-85%) than in the presence of poultry manure alone. Both the mean rates and cumulative amounts of C mineralized generally increased with increasing contents of straw and sawdust. However, the type of plant residue mixed with poultry manure did not significantly influence the amounts of C mineralized at the comparative rates of addition. The % of added C mineralized decreased with increasing contents of straw and sawdust. Correlation studies showed that the C/N ratios of the amendments had significant negative effect (r = 0.91) on the degree of C mineralization in soil. Carbon/nitrogen ratio had no significant effect on the cumulative amounts of C mineralized. These results indicate the importance of C/N ratio to the rate of decomposition of organic amendments in soil. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. 2020-10-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://ija.oauife.edu.ng/index.php/ija/article/view/515 Ife Journal of Agriculture; Vol. 18 No. 1 (1996): Ife Journal of Agriculture; 26-36 0331-6351 eng https://ija.oauife.edu.ng/index.php/ija/article/view/515/396 Copyright (c) 2020 Ife Journal of Agriculture |
| spellingShingle | Organic amendments, poultry manure, C mineralization, C evolution, oxidizable C, C/N ratio OLAYLNKA, AKINYOMI |
| topic | Organic amendments, poultry manure, C mineralization, C evolution, oxidizable C, C/N ratio |
| topic_facet | Organic amendments, poultry manure, C mineralization, C evolution, oxidizable C, C/N ratio |
| url | https://ija.oauife.edu.ng/index.php/ija/article/view/515 |