EVALUATION OF THE POTENTIAL OF MILLLET THRESH WASTE PRODUCTION IN THE NIGERIAN SAVANNA
EVALUATION OF THE POTENTIAL OF MILLLET THRESH WASTE PRODUCTION IN THE NIGERIAN SAVANNA
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Date
1994-08
Authors
Dawi, Tarfa Bitrus,
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Abstract
The effect of Millet (Pennesetum americanum l,. ) thresh waste
(MTW) applied in different proportions with cow dung (CD) with and
without inorganic fertilizers, on the growth, yield and yield
components of maize (Zea mays L.) was evaluated in the green house
and field at Samaru using two soil textural types a sandy loam from
Minjibir Jigawa state (latitude 12°-8'N and longitude 8°-40'E a loam
from Samaru Kaduna state (latitude 11°-11'N and longitude 7°-38,E.
The treatments consisted of 100% MTW / 0% CD: 75% MTW / 25% CD; 50%
MTW / 50% CD; 25% MTW / 75% CD and 0% MTW / 100% CD each applied at
5 and lOt ha"1 with and without inorganic fertilizer. There were
three controls, .absolute control without amendment and Fertilizer,
half and full doses of recommended rates of fertilizer for maize.
Urea, ingle superphosphate and muriate of potash were used. The
treatments were replicated three times in a randomized complete
block design.
During the first cropping in the green house, maize plant
height, dry matter yield (DMY) and nutrient uptake increased as the
proportion of CD increased in the mixture irrespective of the rate
and ferlllizer used. The reverse was the case as the proportion of
MTW increased in the mixtures, tor DMY, values obtained with 100%
CD / 0% MTW applied at lOt ha"1 was 161.40 and 130.80% higher than
those obtained from absolute control for Minjibir and Samaru soils,
respectively. For these parameters, mixtures containing 75% CD and
above applied at 5t ha" with fertilizer gave values comparable to
when the recommended dose of fertilizer was applied. When 100% CD
/ 0%MTW was applied at both 5 and l0 t ha , DMY was significantly
higher than at half the recommended dose of fertilizer in Samaru
soil. However, when 100% MTW /0% CD was applied at 5 and lO t ha-1
values compared favourably with half recommended dose of
fertilizer. The trend during the second cropping was a reverse of
what was obtained after the first cropping. For example, plant
height, DMY and nutrient uptake increased as the proportion of MTW
increased in the mixtures and decreased as the proportion of CD
increased in the mixtures.
in the field study, grain and stover yields increased as the
proportion of CD increased in the mixtures and decreased as the
proportion of MTW increased in the mixtures. In the absence of
fertilizer, only 100% CD at 5t ha-1 - and mixtures containing 75% CD
applied at lOt ha-1 gave yields that compared favourably with the
half and full doses of fertilizers. Addition of inorganic
fertilizer to the mixtures generally increased plant height, grain
and stover yields over their corresponding mixtures without
fertilizer and the absolute control. All mixtures applied at both
rates with fertilizer gave higher grain yields than the recommended
dose of fertilizer, with the exception of 100% MTW / 0% CD at 5t
ha-1. Correlation studies indicate that DMY and nutrient uptake
were strongly correlated, irrespective of rate, fertilizer and
soil. Similar result was observed between nutrient uptake and
plant he ight.
Description
A THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL, AHMADU BELLO
UNIVERSITY. IN PARTIAL FULFILMENT OF THE REQUIREMENT FOR THE
DEGREE OF MASTER OF SCIENCE
Department of Soil Science
Faculty of Agriculture
Ahmadu Bello University, Zaria
AUGUST, 1994
Keywords
EVALUATION,, POTENTIAL,, MILLLET,, NIGERIAN SAVANNA