Effect of high rates of fertilizer and longer harvesting periods on seed production, dry matter yield and chemical composition of stylosanthes guianensis and stylosanthes Hamata at Morogoro.
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Date
1999
Journal Title
Journal ISSN
Volume Title
Publisher
Sokoine University of Agriculture
Abstract
A study was conducted to examine the effect of high rates
of nitrogen (N) and phosphorus (P) fertilizer application
and
longer harvesting periods
on
seed production,
dry
matter (DM) yield and chemical composition of Stylosanthes
guianensis and Stylosanthes hamata at Morogoro. A splitĀ
plot experimental layout design was used.
Four levels of N (0,30,60 and 90kg/ha) and four levels of
P
(0,60,120 and 180kg/ha)
were arranged factorially as
main-plot treatment. Sub-plot treatments were harvesting
periods, which were 50% flowering stage, 4 th
8 th
10th, 12th
and 14 th week post 50% flowering stage.
The results showed that both S.guianensis and S.hamata did
(p<0.05)to N application in
terms of seed yield and DM yield.Nitrogen application
not respond significantly
slightly increased CP% , IVDMD% and IVOMD% of S. guianensis.
Phosphorus fertilizer application on the other hand, did
not affect seed yield and DM yield of S. hamata and seed
yield of S.guianensis whereas it increased DM yield of
S.guianensis as the levels increased. The over all quality
of
herbage produced
application.
declined
in both
species
with P
Description
A dissertation submitted in partial fulfilment of the requirements for the degree of master of science in agriculture
Keywords
Fertilizer, Longer harvesting periods, Seed production, Dry matter yield, Chemical composition, Hamata, Morogoro.