Dr. UMERI CLIFFORD
Publication Title EVALUATION OF SOME MAIZE (Zea mays L) VARIETIES ON THE GRO
Publication Type journal
Publisher INT’L JOURNAL OF AGRIC. AND RURAL DEV.
Publication Authors aUmeri, C, bMoseri, H. cBelonwu, N.E., dEfoma, A.
Year Published 2022-02-02
Abstract Growth and cob weight yield of five maize varieties in
Delta State, Nigeria were evaluated. Maize varieties
used for the study were: Oba 98, Oba super 2, Low
nitrogen tolerant plant (LNTP), Open pollinated
variety (OPV) and local variety were subjected to
experimentation. The design was a randomized
complete block with three replicates. The plant
parameters measured were: plant height, number of
leaves/plant, leave area and stem girth. These were
taken at 2, 4, 6, 8 and 10 weeks after planting (WAP)
Cob weight were also determined. The mean value
across the varieties were subjected to Duncan multiple
range test (DMRT) to test for the significant
differences that existed among the varieties. The result
showed that Plant height showed continuous increase
across the varieties at 6, 8 and 10 WAP with
significant differences across the varieties. At 10
WAP plant height was highest in OPV (264.3cm) and
was least in LNTP (200.8cm). At 10 WAP Oba 98
(7.70cm) was the most significant in plant girth and
was significantly different from other varieties. At 8
and 10WAP number of leaf was highest in OPV and
was significantly different from other varieties. Mean
cob weight was highest OPV (0.049t/ha) and was
lowest in the local variety (3.8t/ha). It was concluded
that OPV was the most outstanding variety having the
highest cob weight of 4.8t/ha and therefore was
recommended for farmers in the study area for
cultivation without any form of fertilizer application
Publication Title Effect of urea fertilizer on the growth and yield of African spinach (Amaranthus hybridus L.) in derived- savanna zone of Delta State, Nigeria
Publication Type journal
Publisher J. Current Opinion Crop Sci., 2022; Volume 3(1): 28-33
Publication Authors Umeri, Ca., Nwajei, S.E * b, and Akporherhe, Ha
Year Published 2022-02-02
Abstract A field study was carried during the 2020 cropping season to
determine the effect of urea on the growth and yield of
Amarathus hybridus at the Teaching and Research Farm,
University of Delta, Agbor Delta State. The urea fertilizer was
applied at 0, 100, 150, 200 and 250 kg ha-1. The amounts of
urea fertilizer used were 0, 100, 150, 200, and 250 kg ha-1. The
five levels of urea fertilizer were duplicated three times in the
experimental design, which was a randomized complete
block. Plant height, number of leaves plant-1, leaf area plant-1,
stem girth, and fresh yield of the plant were all measured. The
data was examined using analysis of variance (ANOVA), and
the means were separated using the Duncan Multiple Range
Test (DMRT) at a probability level of 5%. Amaranthus growth
and yield characteristics were dramatically improved by
increasing the rate of urea fertilizer treatment. However, urea
administered at a rate of 250 kg ha1 improved growth
characteristics more than the lower rate and control. The
application of 250 kg ha1 urea resulted in the highest fresh
plant production (2.30 t ha-1) and differed substantially from
the control (0.90 t ha-1), but not from the other urea levels
used.
Publication Title Nitrogen and Potassium Status of Selected Soils and Their Effects on the Growth, Yield and Cyanide Content of Cassava (Manihot esculenta Crantz) in Delta State, Nigeria
Publication Type journal
Publisher IAR Journal of Agriculture Research and Life Sciences
Publication Authors Umeri C, Moseri H and Chisonum M.
Year Published 2022-08-20
Abstract This study was conducted to evaluate the nutrient status and the
effects of Nitrogen and Potassium fertilizer on the growth, yield and Hydrogen
cyanide content of cassava (Manihot esculenta (L) Crantz) in Delta State, Nigeria;
Representative soil samples were obtained from Abraka, (Rainforest zone); at 0-
15cm and 15 -30cm depths. These were analyzed for their physical and chemical
properties. The design was a 4×4 factorial scheme fitted into a Randomized
Complete Block design giving 16 treatment combinations with 3 replicates. The
following treatment combinations of N and K were applied: N0K0
(no fertilizer),
N0K20, N0K40, N0K80, N40K0
, N40K20 N40K40, N40K80, N80K0
, N80K20, N80K40,
N80K80, N120K0
, N120K20, N120K40, and N120K80 kg/ha-1 The plant parameters
measured were: plant height. These were taken at 2,4,6,8 and 10 months after
planting (MAP). Fresh tuber weight and Hydrogen content of tuber were also
determined. In the trials involving the application of N, K and their combinations,
K had significant effect 2-10 MAP on plant height at (p<0.05) influenced fresh
tuber weights of cassava. It was concluded that 120kgN/ha in combination with
20kgK/ha be applied to soils in the study area for the cultivation of cassava
variety for best tuber yields and hydrogen cyanide content.
Publication Title Effects of Nitrogen and Phosphorus on the Growth Performance of Maize (Zea mays) in Selected Soils of Delta State, Nigeria
Publication Type journal
Publisher Advances in Crop Science and Technology
Paper Link 10.4172/2329-8863.1000207
Publication Authors Umeri C*, Moseri H and Onyemekonwu RC
Year Published 2016-06-06
Abstract The study was carried out in Delta State, Nigeria. Soil samples were collected from nine locations within Delta
State namely Agbor, Asaba and Ubulu-uku (Delta North), Abraka, Oghara-Eki, Sapele (Delta Central), Oleh, Ozoro,
Patani (Delta South). Surface soils (0-15 cm) and sub-surface soils (15-30 cm) depth. These were analyzed for their
physical and chemical properties. In one of the locations (Agbor) found to be deficient in nitrogen (N) and phosphorus
(P) field trials on the effects of these nutrients on the performance of maize (Zea mays) were carried out. The variety
ACR-89DMRESR-W was used. The design was a 4 × 4 factorial scheme fitted into a randomized complete block
design given sixteen treatments combinations with three replicates. The following treatments combinations were
applied N0
P20kg/ha, N0
P40kg/ha, N0
P6okg/ha, N20P0
kg/ha, N20P20kg/ha, N20P40kg/ha, N20P60kg/ha, N40P0
kg/ha, N40P20kg/
ha, N40P40kg/ha, N40P60kg/ha, N60P0
kg/ha, N60P20kg/ha, N60P40kg/ha, and N60P60kg/ha. The parameter measured were
plant height and leaf number at 3, 6 and 9 weeks after planting (WAP), respectively. Combined application of 40
kgN/ha+40 kgP/ha significantly increased maize plant height and leaf number among all the treatments. Therefore
combined application of 40 kgN/ha+40 kgP/ha is recommended for optimum growth of maize in the study area.
Publication Title Influence of graded levels of cassava peels and palm kernel cake meal on performance of weaner pigs
Publication Type journal
Publisher Nigerian Journal of Animal Production
Publication Authors 1 1 2 Moseri, H., Umeri, C. and Amaza, I. B.
Year Published 2020-10-10
Abstract Feeding trial was conducted to evaluate the effects of cassava peels/palm kernel cake meal
on the performance and economic benefits of weaner pigs. Fifty (50) large white weaner pigs
of mixed sexes with average of 9.80±0.4 kg were randomly allocated to the five dietary
treatments in a completely randomized design (CRD) with ten pigs per treatment. The
experimental diets which consist of mixture of cassava peels and palm kernel cake had ratio
of 1:1. The mixture replaced maize at 0 (control), 10, 20, 30 and 40%. Feed and water were
made available as required. The growth and economic indices measured were feed intake,
weight gain, feed conversion ratio, protein efficiency ratio, mortality, feed cost (N/kg),total
cost of feed consumed per pig(N) live weight gain, revenue per total live weight gain per pig
(N), gross profit per pig (N).The results revealed that average weekly weight gain was
significantly higher (P<0.05) for weaner pigs fed on control diet with a value of (2.00kg)
while the least values of 1.71kg were recorded for 40% levels of inclusion. Average final body
weight gain values of 24.20, 23.25, 22.60, 22.20 and 21.90kg differed significantly (P<0.05)
amongst the dietary treatments. Average feed intake was higher (P<0.05) on the control
(35.52kg/day) than on diets 10 (33.50), 20 (30.64), 30(30.00) and 40 (30.40kg) in that order.
It was observed that average weekly gain, average final weight gain and average feed intake
declined with increasing levels of test ingredients. However, feed conversion ratio was better
(P?0.05) for weaner pigs fed on20% (2.47) diet than those fed on 0,10, 30, and40% which
had values of 2.57; 2.49; 2.48 and 2.54) correspondingly. Protein efficiency ratio (PER) was
better on 20% (2.38) compared to 30% (2.37), 10% (2.36), while 0% and 40% (2.32) had
similar values. Pigs fed on 40% level test ingredient were better economically than other
treatments groups. In view of highest return on investment, 40% combination Cassava/PKC
meal is recommended.
Publication Title Evaluation of physical and chemical properties of some selected soils in mangrove swamp zones of Delta State, Nigeria
Publication Type journal
Publisher Archives of Agriculture and Environmental Science
Publication Authors C. Umeri, R.C. Onyemekonwu* and H. Moseri
Year Published 2017-09-09
Abstract In the present investigation the analysis of physical and chemical properties of some selected soils
of mangrove swamp in Delta State (Latitude 50 and 60
and 30’ North and longitude 50
and 60
, 45’
east) were determined. Hence, representative soil samples were obtained from three locations viz.,
Koko, Ozoro, Warri (Mangrove swamp) at 0-15cm and 15-30cm depths. The soil samples were
analyzed for their physical and chemical properties viz., soil texture (Sand, silt and clay), pH, EC,
total organic carbon, available P, Na, K, Mg, Ca+
, exchangeable acidity (Al3+, H+
), ECEC, OM,
Zn, Pb, Fe, Cu and Mn at different study sites. The soil texture of the studied soil samples were
primarily recorded as sand and loamy sand, with sandy texture at different study sites. The soils had
a pH range of 5.65 to 6.40 at the surface, and were marginal in organic carbon, total
nitrogen; exchangeable Ca, Mg, and ECEC, Zn, Fe, Cu whereas the contents of Mn were recorded
to be adequate based on the recognized critical levels for the different nutrients. The potassium
levels were found to be deficient in the soils. The pH of the soil showed a significant and positive
correlation with K(r = +0.35) and Pb (r = +0.43). Total N positively correlated with the organic
carbon (r = +0.92) and Fe (r = +0.63). The soils of the study area were mainly sandy loam indicating that the soils will support arable crop production. From the results of the present study it is
recommended that the phosphorus and exchangeable potassium should be artificially supplemented
to enhance the nutrients in the soil required for the growth and yield of the crop plants.