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Determines the status of the different forms of potassium (K) in relation to some soil characteristics and the extent of K fixation in 32 Ethiopian soils.


Mamo, T.Haque, I.[Potassium status of some Ethiopian soils]Potassium status of some Ethiopian soils
Mamo, T.Haque, I.[Phosphorus status of some Ethiopian soils. II. Forms and distribution of inorganic phosphates and their relation to available phosphorus]Phosphorus status of some Ethiopian soils. II. Forms and distribution of inorganic phosphates and their relation to available phosphorus

Eight chemical methods were employed for estimating the available P in 32 Ethiopian soils using Phasey bean (Macroptilium lathyroides c.Murray) as a test crop grown in small pots in a glasshouse and the soil test values then correlated with plant characteristics. Olsens' method gave the highest c...


Mamo, T.Haque, I.[Phosphorus status of some Ethiopian soils. III. Evaluation of soil test methods for available phosphorus]Phosphorus status of some Ethiopian soils. III. Evaluation of soil test methods for available phosphorus

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