Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon
A field trial was conducted on two P sorptive, basaltic soils commonly used for maize production in Northwestern Cameroon. The objective was to determine the maintenance P rates required for adequate P supply in the soils for maize after initial capital dressing applications of P (0, 22, 44, 88 and...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2000
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/99855 |
| _version_ | 1855524187404238848 |
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| author | Osiname, O. Meppe, F. Everett, L. |
| author_browse | Everett, L. Meppe, F. Osiname, O. |
| author_facet | Osiname, O. Meppe, F. Everett, L. |
| author_sort | Osiname, O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A field trial was conducted on two P sorptive, basaltic soils commonly used for maize production in Northwestern Cameroon. The objective was to determine the maintenance P rates required for adequate P supply in the soils for maize after initial capital dressing applications of P (0, 22, 44, 88 and 132 kg ha-1) in 1991. These were followed by three supplementary P rates – 0, 44 and 88 kg ha-1 in 1992. Three crops of maize (cv COCA) were grown to monitor the availability of the residual P. Experimental design was randomized complete block with four replications in 1991 and a split-plot in 1992 and 1993. The soils at the experimental sites were rich in organic P which formed 67% and 57% of total P at Mfonta and Babungo respectively. Laboratory P sorption studies indicated high P requirements by the basaltic soils used in the study. The amounts of P sorbed to attain 0.2 ug g-1 in soil solution were 1200 ug g-1 at Mfonta and 600 ug g-1 at Babungo. In spite of these high P sorption capacities, significant responses to small rates of P application were observed. It was concluded that a sizable proportion of P released from organic P mineralization was used to satisfy P sorption capacity of the soils, resulting in maize response to small rates of fertilizer P application. Residual P effects on maize yield were related to applied P. Bray 1 extractable soil P was weakly related to grain yields (r = 0.136 at Mfonta and r = 0.186 at Babungo). A critical value of 5.5 mg kg-1 Bray 2 extractable P in the soil was established for maize at Mfonta site. About 44 kg P ha-1 was recommended for maize at this site when Bray 2 soil P test was below this critical value. |
| format | Journal Article |
| id | CGSpace99855 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2000 |
| publishDateRange | 2000 |
| publishDateSort | 2000 |
| record_format | dspace |
| spelling | CGSpace998552023-02-15T06:53:52Z Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon Osiname, O. Meppe, F. Everett, L. soil maize fertilizers A field trial was conducted on two P sorptive, basaltic soils commonly used for maize production in Northwestern Cameroon. The objective was to determine the maintenance P rates required for adequate P supply in the soils for maize after initial capital dressing applications of P (0, 22, 44, 88 and 132 kg ha-1) in 1991. These were followed by three supplementary P rates – 0, 44 and 88 kg ha-1 in 1992. Three crops of maize (cv COCA) were grown to monitor the availability of the residual P. Experimental design was randomized complete block with four replications in 1991 and a split-plot in 1992 and 1993. The soils at the experimental sites were rich in organic P which formed 67% and 57% of total P at Mfonta and Babungo respectively. Laboratory P sorption studies indicated high P requirements by the basaltic soils used in the study. The amounts of P sorbed to attain 0.2 ug g-1 in soil solution were 1200 ug g-1 at Mfonta and 600 ug g-1 at Babungo. In spite of these high P sorption capacities, significant responses to small rates of P application were observed. It was concluded that a sizable proportion of P released from organic P mineralization was used to satisfy P sorption capacity of the soils, resulting in maize response to small rates of fertilizer P application. Residual P effects on maize yield were related to applied P. Bray 1 extractable soil P was weakly related to grain yields (r = 0.136 at Mfonta and r = 0.186 at Babungo). A critical value of 5.5 mg kg-1 Bray 2 extractable P in the soil was established for maize at Mfonta site. About 44 kg P ha-1 was recommended for maize at this site when Bray 2 soil P test was below this critical value. 2000 2019-03-03T05:53:37Z 2019-03-03T05:53:37Z Journal Article https://hdl.handle.net/10568/99855 en Limited Access Osiname, O., Meppe, F. & Everett, L. (2000). Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon. Nutrient Cycling in Agroecosystems, 56(3), 209-217. |
| spellingShingle | soil maize fertilizers Osiname, O. Meppe, F. Everett, L. Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon |
| title | Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon |
| title_full | Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon |
| title_fullStr | Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon |
| title_full_unstemmed | Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon |
| title_short | Response of maize (Zea mays) to phosphorus application on basaltic soils in Northwestern Cameroon |
| title_sort | response of maize zea mays to phosphorus application on basaltic soils in northwestern cameroon |
| topic | soil maize fertilizers |
| url | https://hdl.handle.net/10568/99855 |
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