Sallah Et Al


Sallah et al

Greener Journal of Agricultural Sciences Vol. 7 (4), pp. 097-104, June 2017.

 ISSN: 2276-7770 

Research Article

Manuscript Number: 051617062


of different Organic Manures and Mineral NPK Fertilizer on Maize Yield on
Volcanic Soils of the Mt Cameroon area under Minimum Tillage


Sallah, Asongwe Godswill Azinwie*,

Jerome Alobwede, Fru Delvis Ngang


Department of Development
Studies, Pan African Institute for Development -West Africa (PAID-WA) Buea
Cameroon. P. O. Box 133 Buea Cameroon.


Today, agriculture is
characterized by low yields due to continuous cropping and subsequent mining of
nutrients without adequate external additions. The study was conducted to
examine the effects of different organic manures and mineral fertilizer input
on maize grown on volcanic soil of the Mt Cameroon area under minimum tillage.
It specifically a) characterize the soils of the area, b) evaluates the physiological
growth responses of maize under different external inputs, c) determines their
yield responses. An experiment was laid out in randomized complete block design
with four replications where maize of the Acid Tolerate Population (ATP)
variety was planted. Soil samples were obtained from three different locations
on each plot. The samples were analyzed for their physic-chemical properties
using standard methods. The maize was evaluated for growth and yield. The data
was subjected to descriptive and inferential statistics. The soils of the area
were slightly acidic with an average pH value of 6.1. The concentration of
calcium and magnesium were low (3.70 cmol(+)/kg) and medium 1.12 cmol(+)/kg),
respectively. The average nitrogen content of the soils was very low (0.18%)
just as the C/N ratio. Poultry manure
fertilization gave the highest yield of 1.4 t ha-1 and the maximum
harvest index (17.8%) while the  lowest
harvest index of 13.60% was recorded in plot where no manure was applied
(control). The study, concludes that though organic manures are hailed for
their soil amendment properties, the type and duration of handling plays a
great role in nutrient availability to plants.


Key words: Soil, Organic Manures, NPK
Fertilizer,   Maize growth and Yield.

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