Effect of Tillage Operations on Soil Moisture Contents in the Southern Guinea Savanna Ecological Zone of NigeriaReportar como inadecuado




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Anexperimental farm plot was set up at the National Centre for Agricultural MechanizationNCAM, kilometer 12 Ilorin-Idofian Road to investigate the effect of variousagronomic operations mound, ridge and plough tillage on soil moisture contentof varying depth intervals of 0 - 15 cm, 15 - 30 cm, 30 - 45 cm and 45 - 60 cmrespectively. The experiment was conducted between year 2007 and 2009. Sampleswere taken on weekly basis from various depths using hand screw auger. Thepercentage moisture was determined by oven drying oil sample to a constantweight at the temperature of 105°C. The difference betweenthe initial weight and weight after oven drying was calculated and thepercentage determined. Weekly data generated were grouped on monthly basis andthe means calculated. Seasonal values were also calculated. ANOVA and the Post Hocmultiple comparison were employed to investigate variations in soil moisturecontent between tillage systems and within the four soil depths. The resultshowed mound tillage to be the driest and ridge was then wettest of all thetillage system considered. The difference between varying intervals of seachtillage became more pronounced between depth intervals of 0 - 15 cm and 15 - 30cm. Generally, the result of ANOVA indicates seasonal variation in soilmoisture between the three tillage methods at all depths considered. Again theresult of the Pos Hoc multiple comparison shows that variation in soil moisturecontent between the 3 tillage systems in wet and in dry season in not significantbecause the p value > 0.05. Suggestions were made on the way forward towardsachieving a self sufficient food production status.

KEYWORDS

Agronomic Operation, Soil Moisture, Soil Depth, Oven Drying

Cite this paper

Olanrewaju, R. and Abubakar, A. 2015 Effect of Tillage Operations on Soil Moisture Contents in the Southern Guinea Savanna Ecological Zone of Nigeria. Journal of Water Resource and Protection, 7, 183-196. doi: 10.4236-jwarp.2015.73015.





Autor: R. M. Olanrewaju1*, A. S. Abubakar2

Fuente: http://www.scirp.org/



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