assessment of quality of some agricultural land use.pptx

the work assess the quality of some agricultural land use type on selected soil samples

1. ASSESSMENT OF SOIL QUALITY ON SOME AGRICULTURAL LAND USE TYPES IN KOGI EAST   BY   SANNI HARUNA 19SM1052     A PROPOSAL PRESENTATION SUBMITTED TO THE DEPARTMENT OF SOIL AND ENVIRONMENTAL MANAGEMENT, FACULTY OF AGRICULTURE PRINCE ABUBAKAR AUDU UNIVERSITY,  ANYIGBA.           APRIL, 2023

2. INTRODUCTION In major parts of the world, agriculture is the primary cause of land use change. Much of the pressure on the conversion of forests to agricultural uses comes from increasing population growth and developmental demands. Soil quality refers to the capacity of soil to function within ecosystem boundaries to sustain biological productivity, maintain environmental quality and, promote plant and animal health (Doran and Parkin , 2014). Soil quality addresses the issues of productivity and sustainability simultaneously that’s why currently it becomes so indispensable for developing countries. Aggregate stability is an important soil quality trait that determines root penetration, susceptibility to compaction, soil erodibility ( Gryze et al., 2016) and has great ecological importance. Soil aggregation, in turn. depends on the interaction of aggregating agents, soil management and environmental conditions ( Bronick and Lal , 2015).

3. Justification of the study Soil structure has a key role in the functioning of soil, its capacity to support plant and animal life, water availability, soil erodibility and response of soil to changes in the environment. Soil structure holds a vital, but often neglected role in sustainable food production and achievements toward a well-developed society. Different management practices can affect the soils aggregate stability as an index of soil structure status and soil quality ( Josa et al., 2010). Differences in soil aggregate stability may largely influence soil susceptibility to degradation ( Lipiec et al., 2016, Shein et al., 2010). Thus this study will evaluate the impact of different land use system on soil aggregate. Thereby providing information on the state of the aggregate stability of the soils in the study area which is scares in literatures.

4. Objectives of the Study The objective of this research is to determine the effects of different land use system on soil aggregate. Specific objectives of this study will be to; evaluate the variation of soil aggregate stability and some selected physical and chemical properties of the various land use; compare the results of soil aggregate stability and physical and chemical properties of the various land use; and establish the relationship among soil aggregate stability, organic carbon, iron and aluminum oxides.

5. MATERIALS AND METHODS Description of the Study Area Abejukolo is the headquarters of Omala local government area of Kogi State Nigeria; located at latitude 7°.43N - 70,33E and longitude 79,717W - 7°,550 S bounded in the north by river Benue. Soil sampling method Random soil sampling techniques will be employed in the collection of samples. For bulk density core samples of known weight, height and diameter were used to collect a total of 20 core samples from the four (4) different land use type in Anyigba Kogi state. For particle size analysis, soil auger will be used to collect surface samples (0 – 15cm) and (15 – 30cm) depth. The collected soil samples will be analysed at the Department of Soil and Environmental Management, Faculty of Agriculture Prince Abubakar Audu University, Anyigba .

6. Laboratory Analysis Bulk density (Core Method) Particle size determination Macro aggregate stability Water stable aggregate Mean Weight Diameter (MWD) Micro aggregate stability Soil pH Determination Determination of organic carbon Iron Oxide (Fe 2 O 3 ) and Aluminum Oxide Statistical Analysis The data collected was subjected to analysis of variance (ANOVA) and treatment means was separated using Least Significant Difference (LSD).

7. References Enwezor , W.O. (2011). A review of Soil Fertilizer use in crops in Southeastern Zone of Nigeria (in five volumes ). Produced by the Fed. Min. Agric and Nat. Re. Lagos. FAO (Food and Agriculture Organization). (2012). Land and Agriculture: A Compendium of recent sustainable Development Initiatives in field of Agriculture and Management . Osakwe S.O (2014). Physico -Chemical Properties and Fertility Status of Soils Under Different Land use Types in Bauchi State. International Journal of Soil Science; 2(4): 314-315.

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