| 1. | 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。 |
| 2. | The taxation of coffee relative to field crops has had the unfortunate side effect of increasing soil erosion .
与对田间作物的征税相比，对咖啡的征税具有增加土壤侵蚀的不利方面的影响。 |
| 3. | In small-scale farming, on the other hand, the principal object is subsistence. production is diversified among field crops and animal products .
另一方面，小规模的农场以维持生活为主要目的，生产有大田作物和畜产品之分。 |
| 4. | Application of reel type sprinklers to field crops
卷盘式喷灌机在大田作物中的应用 |
| 5. | Application of kansched irrigation management system for field crop
大田作物灌溉管理系统的应用 |
| 6. | Non - chemical methods for control of soilborne diseases of field crops
大田作物土传病害的非农药防治方法 |
| 7. | Experimental research on application of bubbling irrigation for field crops
地下滴灌条件下土壤水分研究概况 |
| 8. | Non - chemical methods for control of soilborne diseases of field crops . . .
大田作物土传病害的非农药防治方法. . |
| 9. | Test and research of bubble irrigation for field crop planted in wide - row space
大田宽行作物涌泉灌技术的试验研究 |
| 10. | Agricultural machinery - sprayers - inspection of sprayers in use - field crop sprayers
农用机械.喷雾机.使用中喷雾机的检查.大田喷雾机 |
