SOIL TESTING FOR PHOSPHORUS IN SOME NIGERIAN SOILS .3. FORMS OF PHOSPHORUS IN SOILS OF SOUTHEASTERN NIGERIA AND THEIR RELATIONSHIP TO PLANT AVAILABLE PHOSPHORUS
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OKLAHOMA STATE UNIV,USDA ARS,WATER QUAL & WATERSHED RES LAB,DURANT,OK 74702OKLAHOMA STATE UNIV,USDA ARS,WATER QUAL & WATERSHED RES LAB,DURANT,OK 74702
JONES, CA
SHARPLEY, AN
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OKLAHOMA STATE UNIV,USDA ARS,WATER QUAL & WATERSHED RES LAB,DURANT,OK 74702OKLAHOMA STATE UNIV,USDA ARS,WATER QUAL & WATERSHED RES LAB,DURANT,OK 74702
SHARPLEY, AN
WILLIAMS, JR
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OKLAHOMA STATE UNIV,USDA ARS,WATER QUAL & WATERSHED RES LAB,DURANT,OK 74702OKLAHOMA STATE UNIV,USDA ARS,WATER QUAL & WATERSHED RES LAB,DURANT,OK 74702