1. Preliminary results on the direct effect of conditioners on plant growth and nutrient uptake;ANTER;Mededelingen Fakulteit Landbouwwetenschappen Rijksuniversiteit, Gent,1976
2. BACHMAN , K. L. PAULINO , L. A. 1979 Rapid food production growth in selected developing countries: a comparative analysis of underlying trends, 1961-76 98
3. Effects of different methods of cultivation and direct drilling, and disposal of straw residues, on populations of earthworms;BARNES;Journal of Soil Science,1979
4. Soil structure effects on the growth of sugar beets;BAVER;Soil Science Society of America Proceedings,1940