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( Jul - Set 1995 ) . v . 2 ( 7 ) p . 4-5 . 175 Kass , D.C.L .; Somarriba , E .; Macedo , J.L.V. de . Soil phosphorus fractions in agroforestry systems : effect of soil depth and sampling time . Agroforestry Forum ( RU ) . ( 1999 ) . v . | |
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Soil phosphorus fractions in agroforestry systems : effect of soil depth and sampling time Several fractionation procedures have come into use over the past 40 years . For almost 30 years , the most common procedure was that Chane ant ... | |
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An exploratory method for fractionation Of phosphorus from grassland soils . Soil Science 125 ... Adoption of mucuna in the farming systems of northern Honduras . ... sampling time and depth on P fractions in agroforestry systems . | |
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