| 1. | It may take many years to assess the effects of fertilizers on tree crops .
可能需要许多年才能评价肥料对果树的效果。 |
| 2. | Very different fertilizer treatments are needed for these two tropical tree crops .
这两种热带作物需要完全不同的施肥方法。 |
| 3. | In haiti, for example, coffee and other tree crops bind the soil on hillsides better than field crops do .
例如，在海地，咖啡和其他树上作物将土壤固定在山边，比田间作物固定得好得多。 |
| 4. | The fruit tree crop - dusting termly
果树应定期喷洒农药 |
| 5. | Equipment for crop protection - test methods for air - assisted sprayers for bush and tree crops
作物保护设备.灌木和乔木鼓风喷雾器试验方法 |
| 6. | Equipment for crop protection - test methods for air - assisted sprayers for bush and tree crops
作物保护设备.丛生灌木和乔木用空气助动喷雾器试验方法 |
| 7. | Agricultural machinery - sprayers - inspection of sprayers in use - air - assisted sprayers for bush and tree crops
农用机械.喷雾机.工作中喷雾机的检查.灌木和乔木用鼓风喷雾机 |
| 8. | Agricultural machinery - sprayers - inspection of sprayers in use - part 2 : air - assisted sprayers for bush and tree crops
农用机械.喷雾机.工作中喷雾机的检验.第2部分:灌木和乔木形农作物用空气辅助喷雾机 |
| 9. | Agricultural machinery - sprayers - inspection of sprayers in use - part 2 : air - assisted sprayers for bush and tree crops ; german version en 13790 - 2 : 2003
农用机械.喷雾机.工作中喷雾机的检查.灌木和乔木用鼓 |
| 10. | Agricultural and forestry machinery - sprayers and liquid fertilizer distributors - environmental protection - air - assisted sprayers for bush and tree crops
农林机械.喷雾器和液体肥料喷施器.环境保护.灌木和树状作物用空气辅助喷施器 |
