Greedy Tropical Soils: Appeasing the Hungry Soils for Sustainable Food Production [26th Inaugural Lecture]

TABLE OF CONTENT

1.0 Preamble

2.0 Soils

﾿ 2.1 Soil Composition

﾿ 2.2 Importance of Soils

﾿ 2.3 Soil Formation

﾿ 2.4 Disciplines in Soil Science

﾿ 2.5 Soil Classifications

﾿ 2.6 Soil Minerals

﾿ 2.7 Soil Acidity 

3.0 Nutrient Element

﾿ 3.1 Phosphorus in Soils

﾿ 3.2 Potassium in Soils

﾿ 3.3 Nitrogen in Soils

4.0 Phosphorus Fixation Capacity of Tropical Soils

﾿ 4.1 Phosphorus Sorption Isotherm 

﾿ 4.2 Fractional Recovery of Phosphorus 

5.0 Summary of My Contribution

﾿ 5.1 Phosphorus and its constraints in soils of the humid tropics

﾿ 5.2 determination of phosphorus requirement of some crops using sorption

﾿ 5.3 fractional recovery of applied phosphorus 

﾿ 5.4 fractional recovery of applied potassium

﾿ 5.5 Sulphur sorption of some soils of Abia state

﾿ 5.6 Phosphorus distribution along Toposequence

﾿ 5.7 Potassium distribution along Toposequence of Abia State

﾿ 5.8 Suitability evaluation of some soil of Southeastern Nigeria for some crop production

6.0 Contribution to the Future

7.0 Conclusion and Recommendation

8.0 Acknowledgement

9.0 References