Soybean phosphorus-use efficiency in the moist Savanna of West Africa
With limited access to P fertilizers, soybean (Glycine max (L.) Merr.) varieties cultivated in the moist savanna zone of West Africa should use P as efficiently as possible. Field trials were conducted on the effect of P application on grain yield per unit P accumulated (physiological efficiency or...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Informa UK Limited
2006
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/91773 |
| _version_ | 1855539226754416640 |
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| author | Ogoke, I. Togun, A. Dashiell, Kenton E. |
| author_browse | Dashiell, Kenton E. Ogoke, I. Togun, A. |
| author_facet | Ogoke, I. Togun, A. Dashiell, Kenton E. |
| author_sort | Ogoke, I. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | With limited access to P fertilizers, soybean (Glycine max (L.) Merr.) varieties cultivated in the moist savanna zone of West Africa should use P as efficiently as possible. Field trials were conducted on the effect of P application on grain yield per unit P accumulated (physiological efficiency or PPE), amount of P accumulated in plant biomass per unit P applied in fertilizer (recovery efficiency or PRE), and the amount of grain produced per unit of applied P (yield efficiency or PYE) in soybean. There was greater proportional root proliferation at lower P rates, and at sites where soil test P was low. Physiological efficiency was higher under these conditions. Although a greater proportion of total dry weight was accumulated in the roots of the early and medium (27-28%) compared with the late varieties (22-23%), root dry weight and PPE in the latter were higher. At maturity, PPE was significantly reduced from 245 kg kg−1 with no P applied to an average of 173 kg kg−1 (or by about 29%) with P application. Phosphorus yield efficiency was higher at sites (Kasuwan Magani and Gidan Waya) and in the late varieties where response to P was highest. PYE with 60 kg ha−1 P applied rate was almost half the value observed with 30 kg P ha−1. |
| format | Journal Article |
| id | CGSpace91773 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace917732024-05-15T05:12:11Z Soybean phosphorus-use efficiency in the moist Savanna of West Africa Ogoke, I. Togun, A. Dashiell, Kenton E. soybeans phosphorus savanna recovery efficiency With limited access to P fertilizers, soybean (Glycine max (L.) Merr.) varieties cultivated in the moist savanna zone of West Africa should use P as efficiently as possible. Field trials were conducted on the effect of P application on grain yield per unit P accumulated (physiological efficiency or PPE), amount of P accumulated in plant biomass per unit P applied in fertilizer (recovery efficiency or PRE), and the amount of grain produced per unit of applied P (yield efficiency or PYE) in soybean. There was greater proportional root proliferation at lower P rates, and at sites where soil test P was low. Physiological efficiency was higher under these conditions. Although a greater proportion of total dry weight was accumulated in the roots of the early and medium (27-28%) compared with the late varieties (22-23%), root dry weight and PPE in the latter were higher. At maturity, PPE was significantly reduced from 245 kg kg−1 with no P applied to an average of 173 kg kg−1 (or by about 29%) with P application. Phosphorus yield efficiency was higher at sites (Kasuwan Magani and Gidan Waya) and in the late varieties where response to P was highest. PYE with 60 kg ha−1 P applied rate was almost half the value observed with 30 kg P ha−1. 2006-05 2018-03-23T06:48:44Z 2018-03-23T06:48:44Z Journal Article https://hdl.handle.net/10568/91773 en Limited Access Informa UK Limited Ogoke, I.J., Togun, A.O. & Dashiell, K.E. (2006). Soybean phosphorus-use efficiency in the moist Savanna of West Africa. Journal of Sustainable Agriculture, 28(1), 5-18. |
| spellingShingle | soybeans phosphorus savanna recovery efficiency Ogoke, I. Togun, A. Dashiell, Kenton E. Soybean phosphorus-use efficiency in the moist Savanna of West Africa |
| title | Soybean phosphorus-use efficiency in the moist Savanna of West Africa |
| title_full | Soybean phosphorus-use efficiency in the moist Savanna of West Africa |
| title_fullStr | Soybean phosphorus-use efficiency in the moist Savanna of West Africa |
| title_full_unstemmed | Soybean phosphorus-use efficiency in the moist Savanna of West Africa |
| title_short | Soybean phosphorus-use efficiency in the moist Savanna of West Africa |
| title_sort | soybean phosphorus use efficiency in the moist savanna of west africa |
| topic | soybeans phosphorus savanna recovery efficiency |
| url | https://hdl.handle.net/10568/91773 |
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