共 50 条
- [31] Sunflower response to nitrogen and phosphorus in wheat-fallow cropping systems JOURNAL OF PRODUCTION AGRICULTURE, 1997, 10 (03): : 466 - 472
- [34] Long-term tillage comparisons for winter wheat-fallow in the US Central Great Plains SOIL & TILLAGE RESEARCH, 1998, 49 (1-2): : 1 - 1
- [39] Carbon isotope ratios of Great Plains soils and in wheat-fallow systems Soil Sci Soc Am J, 4 (1068-1077):