Maize fertilizers has led to an increased cost

Maize is one of the most consumed cerealcrop on a wide margin and forseveral other purposes. It occupied the third place among cereal crops in Nigeria(FAO, 1997), right after sorghum and millet. The performance of Nigeriaagricultural sector in maize production has become abated over the decade dueto some factors that militate against sufficient crop yields and fertilizer useUdom et al. (2007). Inorganic fertilizer contains one or several nutrients requiredfor maize production which, however, in contrast to the organic manure, aremostly present in concentrated, easily soluble forms. High cost of thesechemical fertilizers has led to an increased cost of production; excessive useswhich are the important inputs in modern farming create depletion in soilfertility and pollution in surface water bodies.

Nitrogen in inorganicfertilizer applied can be loss through denitrification, leaching such ascontamination of streams and ground water and sublimation of ammonium. Thisincrease concerns on harmfully effect on excessive use of chemical fertilizer. Useof organic fertilizers is required for sustainable agriculture to supply nutrientsand improving soil organic matter, soil physical, chemical properties and soilproductivity (Hati et al. 2006).

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 Soilorganic matter is the key to soil fertility and productivity. However, usingorganic manure such as farmyard manure, animal manure (cattle manure, poultrymanure) can serve a better option in substitute for chemical fertilizer. Thisplay important role in maintaining fertility of soil by adding organic matter , nutrient and these improvessoil moisture retention, soil aggregation, prevention of soil compact andnutrient leaching.

Animal manure is important source of nitrogen andprovides nutritional needs of growing crops (Kaveh firooz et al., 2013:Baghdali et al., 2016). Nutrient contained in these manure are stored forlonger period and are release slowly, thereby maintaining long residual effect (Sharma and Mittra, 1991). Sinceenhanced soil fertility and improved environmental quality are both importantgoals of agriculture today in maintaining environmenthealth by reducing the level of pollution, deliberate efforts are requiredto promote utilization of animal manure for crop production. There is littleinformation on effect of animal manure mixture on nitrogen mineralization, itis therefore important to exploit the utilization of animal manure mixture todetermine the nitrogen requirement for optimum performance of maize amendedwith animal manure mixture and NPKfertilizer also it is require to understand the synergistic effects of manuremixture on N forms.

Author: Estelle Massey


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