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: 
Date of publication: 
2010
Country: 
Region Focus: 
East Africa
Collection: 
RUFORUM Conferences and Workshops
Licence conditions: 
Open Access
Access restriction: 
Form: 
Printed resource
Publisher: 
ISSN: 
E_ISSN: 
Edition: 
Extent: 
919-923
Notes: 

"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".