"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholers in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme agronomy".
Effect of fecal manure from cattle fed Calliandra, Gliricidia and Luecaena browse/maize silages on soil productivity
Abstract:
Browses have tannins and lignin which bind protein N and fiber
and could subsequently affect release of manure nutrients in
the soil when fed to animals. In this experiment, which was a
pot experiment, cattle fecal manure from browse/maize silages
and maize silage alone were applied as treatments to soil with
Amarathus cruentus as the test crop. Four successive plantings
were made without changing the soil. Soil C and N were
determined at initial and after the first, second and third harvests.
Five plants were harvested at collar level at flower bud stage
from each pot to determine DM yield. Manure from maize silage
alone had least N, a wider C:N ratio but less lignin and gave
higher DM yield of the Amarathus. Manure from Calliandra/
maize silage had a higher level of N, but much of which was
fiber and lignin bound, gave lower DM yields. The experiment
gave indicative results that need to be tested further under farm
conditions.
Les feuilles sont bronzés et la lignine qui lie la protéine N aux
fibres pourrait ultérieurement affecter la libération d’éléments
nutritifs du fumier dans le sol lors de l’alimentation de l’animale.
Dans cette expérience, qui a été une expérience en pots, le
fumier de bovins de fèces à partir de la navigation et l’ensilage
de maïs et seul le maïs d’ensilage a été appliqués sur les
traitements du sol avec Amarathus cruentus comme cultures
d’essai. Quatre plantations successives ont été faites sans
changer le sol. Les sols C et N ont été déterminés au débit et
après la première, la deuxième et la troisième récoltes. Cinq
plantes ont été récoltées au niveau du col au stade du bouton
de fleur de chaque pot afin de déterminer le rendement de
DM. Le fumier provenant d’ensilage de maïs seul avait au moins
N, plus un rapport C / N, mais moins de lignine et a donné un
rendement supérieur DM d’Amarathus. Le fumier provenant
de Calliandra / ensilage de maïs a un niveau plus élevé de N, mais beaucoup étaient de fibres et de la lignine liée, et ont donné
des rendements inférieurs en DM. L’expérience a donné des
résultats indicatifs qui doivent être testés dans des conditions de
la ferme.
Language:
English
Date of publication:
2010
Country:
Region Focus:
East Africa
University/affiliation:
Collection:
RUFORUM Conferences and Workshops
Agris Subject Categories:
Agrovoc terms:
Additional keywords:
Licence conditions:
Open Access
Access restriction:
Form:
Printed resource
Publisher:
ISSN:
E_ISSN:
Edition:
Extent:
919-923
Notes:
