| 1. | Equipment for conservation tillage and direct seeding
保护性耕作与免耕播种机具 |
| 2. | Center for conservation tillage research cctr , moa
农业部保护性耕作研究中心 |
| 3. | The investigation about corn conservation tillage technology
玉米保护性耕作技术探讨 |
| 4. | On the development of conservation tillage in the hebei plain
保护性耕作的资源环境效益 |
| 5. | Situation analysis of conservation tillage in shanxi
浅析当前山西省保护性耕作技术发展状况 |
| 6. | Seeder design and evaluation for small scale conservation tillage
小型免耕播种机的设计与试验 |
| 7. | Black soils mollisols and conservation tillage practices
黄土高原西部保护性耕作实践问题与建议 |
| 8. | Several problems of popularizing conservation tillage technique
推广保护性耕作技术需解决的几个问题 |
| 9. | Popularize the technique of mechanized conservation tillage of dryland
推广旱地机械化保护性耕作技术 |
| 10. | The environmental consequences of adopting conservation tillage
青海省保护性耕作发展中的主要问题及对策 |
