共 50 条
- [1] MINIMIZING THE RISK OF PRODUCING WINTER-WHEAT IN NORTH-DAKOTA .2. THE EFFECT OF TILLAGE AND VARIETY SELECTION ON WINTER-WHEAT SURVIVAL AND GRAIN-YIELD NORTH DAKOTA FARM RESEARCH, 1987, 44 (05): : 14 - 16
- [3] WINTER-WHEAT PRODUCTION IN NORTH-DAKOTA NORTH DAKOTA COOPERATIVE EXTENSION SERVICE EXTENSION BULLETIN, 1982, (33): : 1 - 8
- [4] THE CHANGING PATTERN OF WINTER-WHEAT PRODUCTION IN NORTH-DAKOTA NORTH DAKOTA FARM RESEARCH, 1985, 42 (06): : 17 - 20
- [8] AGASSIZ - A NEW HARD RED WINTER-WHEAT VARIETY FOR NORTH-DAKOTA NORTH DAKOTA FARM RESEARCH, 1984, 42 (02): : 23 - 25
- [9] OBSERVATIONS ON SOIL-TEMPERATURE UNDER WINTER-WHEAT, BARLEY AND FALLOW SWEDISH JOURNAL OF AGRICULTURAL RESEARCH, 1977, 7 (03): : 143 - 146