Effect of fecal manure from cattle fed Calliandra, Gliricidia and Luecaena browse/maize silages on soil productivity
Abstract
161 words
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.
Subjects
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