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4Limitations to efficient water use in crop production Limitations to efficient water use in crop productionby 123638 Taylor, H.M., 81615 Jordan, W.R., 119399 Sinclair, T.R. eds., 2680 American Society of Agronomy, Madison, WI (EUA), 6665 Crop Science Society of America, Madison, WI (EUA), 18133 Soil Science Society of America, Madison, WI (EUA)
Published 1983bibliotecaIICA -
5Replenishing soil fertility in Africa; proceedings of an international symposium Replenishing soil fertility in Africa; proceedings of an international symposiumby 51939 Buresh, R.J., 115671 Sánchez, P.A., 52895 Calhoun, F. eds., 18133 Soil Science Society of America, Madison, WI (EUA), 9447 ICRAF, Nairobi (Kenia), 35898 International Symposium on Replenishing Soil Fertility in Africa Indianapolis, IN (EUA) 6 Nov 1996
Published 1997bibliotecaIICA -
6The role of phosphorus in agriculture: proceedings The role of phosphorus in agriculture: proceedingsby 82915 Khasawneh, F.E., 115542 Sample, E.C., 82168 Kamprath, E.J. eds., 2680 American Society of Agronomy, Madison, WI (EUA), 6665 Crop Science Society of America, Madison, WI (EUA), 18133 Soil Science Society of America, Madison, WI (EUA), 38437 Symposium National Fertilizer Development Center, Tennessee Valley Authority Muscle Shoals, Alabama, AL (EUA) 1-3 Jun 1976
Published 1980bibliotecaIICA