IIARD International Institute of Academic Research and Development

International Journal of Agriculture and Earth Science (IJAES )

E- ISSN 2489-0081
P- ISSN 2695-1894
VOL. 10 NO. 7 2024
DOI: 10.56201/ijaes.v10.no7.2024.pg18.31

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Effects of Plant Population and NPK 20:10:10 Fertilizer Rates on the Growth and Grain Yield of Maize ( Zea maysL.) in Benin City, Edo State, Nigeria

Ahmadu, R and Bello, I.H

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Abstract

Maize productivity is low in Nigeria due to declining soil fertility among other factors. This can be improved through balanced soil fertilization with the adoption optimum stand density. Trials were conducted in 2021 and 2022 to evaluate the effects of plant population and NPK 20:10:10 fertilizer on the growth and grain yield of maize in Benin City, Edo State, Nigeria at the Experimental Farm of the Faculty of Agriculture, University of Benin, Benin City, Nigeria. This experiments involved three NPK 20:10:10 rates (0, 600, and 800 kg ha-1) and three number of plants per stand (1, 2, and 3 plants) were laid out in 3 x 3 factorial arrangements fitted into a randomized complete block design (RCBD) and replicated three times. Data were collected on vegetative characters and grain yield components The results showed that increased NPK

keywords:

Fertilizer rates. Grain yield, Growth, Maize, NPK 20:10:10, Vegetative characters

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References:

Adekayode, F.O. and Ogunkoya, M.D. (2010). Effect of quantity and placement distances
of inorganic 15:15:15 fertilizer in improving soil fertility status and the
performance and yield of maize in tropical rain forest zone of Nigeria. Journal of
Soil Science Environment Management, 1: 155 – 163.
Akanbi, W.B and Togun, A.O (2002). The Influence of maize stover compost and nitrogen
fertilizer on growth, yield and nutrient uptake of Amaranthus. Scientia
Horticulture, 93: 1 – 8.
Akande, S.O. (1994). Comparative cost and return in maize production in Nigeria. NISER
individual research project report, NISER, Ibadan, pp. 1-35.
Al-Naggar, A. M.M., Shabana, R. A., Atta, M. M.M. and Al-Khalil, T.H. (2015). Maize
response to elevated plant density combined with lowered nitrogen fertilizer rate is
genotype dependent. Crop Journal, 3: 96–109.
Antonietta, M., Fanello, D.D. and Acciaresi. H.A. (2014). Senescence and yield responses
to plant density in stay green and earlier-senescing maize hybrids from Argentina.
Field Crops Resources, 155: 111–119.
Bamire, A.S., Abdoulaye, T., Sanogo, D. and Langyintuo, A. (2010). Characterization of
maize producing households in the dry savanna of Nigeria. Country Report –
Nigeria: IITA Ibadan, Nigeria. pp. 46-48.
FAO. (2001). Food and Agriculture Organisation (FAO) of the United Nations. Soil
Fertility, Management in support of food security in sub-Saharan Africa, p. 315-
Available on ftp://ftp.fao.org/agll/docs/foodsec.pdf.
FAO. (2019). Food and Agriculture Organisation (FAO) of the United Nations. FAO
Statistical Data base, pp. 239-242.
FAOSTAT. (2014). Food and Agriculture Organization (FAO) of the United Nations. FAO
Statistical Data base, pp. 18- 161, from http://faostat.fao.org.
Floyd, A.C., Oiklor, R., and Ekene, B. (2016). An assessment of climate change in Benin
City, Edo State, Nigeria. FUTY Journal of the Environment, 1:10-13.
Gideon, O.A. and Akinola, A.A. (1985). Critical levels for soil pH, available P, K, Zn, and
Mn in sedimentary soil of South- Western Nigeria. Springer Nature, 6: 65- 71.
Haarhoff, S.J. and Swanepoel, P.A (2018). Plant population and maize grain yield: A global
systematic review of rain fed trials. Crop Science, 58(5): 1819-1829.
Kamara, A.Y., Kamai, N., Omoigui, L.O., Togola, A., Ekeleme, F. and Onyibe, J.E. (2020).
Guide to maize production in Northern Nigeria. Published by the International
Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, pp.18-20.
Lashkari, M., Madani, H., Ardakani, R.M., Golzardi, F. and Zargari, K. (2011). Effect of
plant density on yield and yield components of different corn (Zea mays L.) hybrids.
American-Eurasian Journal of Agriculture and Environmental. Science, 10(3):
450–457.
Law-Ogbomo, K.E. and Ahmadu, R. (2018): Comparative effect of varieties and fertilizer
types on nutrient content and uptake of maize in a low fertile soil environment.
Federal University Wukari Journal of Agriculture and Life Sciences, 2(2): 251 –
Law-Ogbomo, K.E., Remison, S.U. and Jombo, E.O. (2012). Effect of organic and
inorganic fertilizer on the productivity of Amaranthus cruentus. Nigerian Journal
of Agriculture, Food and Environment, 8 (2): 35 – 40.
Nazer, M, Shakeel, A.A., Nadeem, A., Iftikhar, A. and Abdul, S. (2016). Role of plant
population for crop productivity. A Hunt. For Agricultural Knowledge. Basics of
Agriculture, P. 1814.
Reddy, T.P., Lakshmi, D.V., Kamalakar, J. and Sambasiva, C.H.R. (2017). Critical levels
of micro and secondary nutrients in soils and crops for optimum plant nutrition.
International Journal of Scientific Research, 6(5): 2277-8179.
Remison, S.U. (2005). Arable and vegetative crops of the tropics. Gift Prints Associates,
Benin-City, Nigeria. PP. 4-18.
Soil Science Division Staff. Soil Survey Manual (2017). Chapter 3, Examination and
description of soil profiles. (PDF) Natural Resources Conservation Service, United
States Department of Agriculture, Handbook 18.
Stewart, E.T, Madden, R, Paul, G, Taddei, F (2005). Aging and death in an organism that
reproduces by morphologically symmetric division. Journal of Plant Biology, 3(2):
United States Department of Agriculture (USDA). (2019). United States Development of
Agriculture. Economics Statistics and Market Information System. pp. 16-22.

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