| dc.creator |
Banyikwa, Feetham F. |
|
| dc.date |
2016-09-21T12:30:36Z |
|
| dc.date |
2016-09-21T12:30:36Z |
|
| dc.date |
1988 |
|
| dc.date.accessioned |
2018-03-27T08:55:44Z |
|
| dc.date.available |
2018-03-27T08:55:44Z |
|
| dc.identifier |
Banyikwa, F.F., 1988. The growth response of two East African perennial grasses to defoliation, nitrogen fertilizer and competition. Oikos, pp.25-30. |
|
| dc.identifier |
http://hdl.handle.net/20.500.11810/3823 |
|
| dc.identifier |
10.2307/3565803 |
|
| dc.identifier.uri |
http://hdl.handle.net/20.500.11810/3823 |
|
| dc.description |
Full text can be accessed at
http://www.jstor.org/stable/3565803?seq=1#page_scan_tab_contents |
|
| dc.description |
Two East African perennial grasses, Digitaria macroblephara (Hack) Stapf. and
Sporobolus ioclados (Trin.) Nees, were grown in pure and mixed culture in a factorial
treatment design of defoliation, nitrogen fertilizer and plant density for a period of 90
d. With regard to controls, defoliation reduced total yield of both species per plant by
81%; higher density decreased total yield per plant by 56%; and intraspecific compe-
tition decreased total yield per plant 24% more than interspecific competition. High
nitrogen promoted total yield per plant by 168%. Total yield per plant of D. macro-
blephara was 3.2 times greater than that of S. ioclados. With defoliation, density
dependent competition decreased total yield per plant by 42% while, without defolia-
tion, density dependent competition decreased total yield per plant by 601%. With
defoliation, high nitrogen increased yield per plant by 9% while without defoliation
high nitrogen increased yield per plant by 315%. The results suggest that the magni-
tude of the negative aspects of density dependent competition may be lessened by
defoliation and growing plants in mixed culture. It is concluded that in grazing
ecosystems it may be advantageous to grow plants in mixed culture since the negative
effects of interspecific competition are less than those arising from intraspecific
competition. |
|
| dc.language |
en |
|
| dc.publisher |
Wiley |
|
| dc.title |
The Growth Response of Two East African Perennial Grasses to Defoliation, Nitrogen Fertilizer and Competition |
|
| dc.type |
Journal Article, Peer Reviewed |
|