Citation: P. Liebhard, INFLUENCE OF PRIMARY TILLAGE ON YIELD, YI ELD CHARACTERISTICS AND SELECTED QUALITY CRITERIA OF SUGAR-BEET (BETA-VULGARIS L SSP VULGARIS VARALTISSIMA DOELL) IN THE CENTER OF UPPER AUSTRIA .8., Die Bodenkultur, 48(1), 1997, pp. 3-14
Citation: P. Liebhard, INFLUENCE OF PRIMARY TILLAGE ON YIELD AND YIELD CHARACTERISTICS OF CORN (ZEA-MAYS L) IN THE CENTER UPPER AUSTRIA .7., Die Bodenkultur, 47(3), 1996, pp. 153-162
Citation: P. Liebhard, INFLUENCE OF PRIMARY TILLAGE ON YIELD AND YIELD CHARACTERISTICS OF WINTER-WHEAT (TRITICUM-AESTIVUM L) IN THE CENTER OF UPPER AUSTRIA .6., Die Bodenkultur, 46(3), 1995, pp. 205-222
Citation: P. Liebhard et al., INFLUENCE OF PRIMARY TILLAGE ON AGGREGATE STABILITY AND PENETRATION AND RESISTANCE IN THE CENTER OF UPPER AUSTRIA .5., Die Bodenkultur, 46(1), 1995, pp. 1-18
Citation: P. Liebhard et al., INFLUENCE OF PRIMARY TILLAGE ON INFILTRAT ION AND SOIL-WATER SUPPLY IN CENTRAL UPPER AUSTRIA .4., Die Bodenkultur, 45(4), 1994, pp. 297-311
Citation: P. Liebhard, INFLUENCE OF PRIMARY TILLAGE ON DENSITY, PORE VOLUME AND PORE-SIZE DISTRIBUTION OF AN ARABLE FARMING SOIL IN THE CENTER OF UPPER AUSTRIA .3., Die Bodenkultur, 45(2), 1994, pp. 125-138
Citation: P. Liebhard, INFLUENCE OF PRIMARY TILLAGE ON PH-VALUE, CALCIUM-CONTENT, POTASSIUM-CONTENT AND PHOSPHATE-CONTENT OF FARMING SOIL IN THE CENTER OF UPPER AUSTRIA .2., Die Bodenkultur, 44(4), 1993, pp. 303-315