Changes in Phosphorus Fractions and its Availability Status as Affected by Appling of Bio and Mineral Fertilizers in The Calcareous Soils

Relationship between The Amount of Available P and Manure Application by Calcareous Soils

PHOSPHORUS BIOAVAILABILITY IN CALCAREOUS AND SANDY SOILS

Effect of Farmyard Manure and Rate of Phosphatic Fertilizer on Phosphorus Availability and Yield of Corn

Addition Effects of Certain Organic Materials on Some Chemical Properties and Available Calcium and Phosphorus of Calcareous Soils

Application of Manure and Phosphorus Bio-Solubilizers with Rock Phosphate in Calcareous Soils to Increase Phosphorus Availability and Productivity of Safflower Plant

Biochemical Properties of Calcareous Soil Affected by the Source of Sulphur-Organo Fertilizers

ASSESSING THE ROLE SOME SOIL AMENDMENTS ON PHOSPHORUS AVAILABILITY UNDER CALCAREOUS SOIL CONDITIONS

Available Phosphorous and Organic Carbon as an Indication for the Evaluation of Bone Char and Bone Ash Applied to Calcareous Soil

Effect of Some Organic and Inorganic Soil Amendments on the Available N, P and K in Sandy and Calcareous Soils