| 1. | Crushed bones make one of the best fertilizers .
骨粉是最佳肥料之一。 |
| 2. | Fertilizers modify the composition of herbage .
肥料可改变牧草的组成。 |
| 3. | Garbage from food can be changed into fertilizer .
食物下脚可以变成肥料。 |
| 4. | The manure should be well dug in .
肥料应掘土均匀地混入土壤中。 |
| 5. | Bone-meal and nitrates are common fertilizers .
骨粉和硝酸盐是普通的肥料。 |
| 6. | The tractor hauled the fertilizer away .
拖拉机把肥料拉走了。 |
| 7. | But ammonium fertilization may have to be increased .
不过铵态肥料是应该增施的。 |
| 8. | The most important use of potash is in fertilizer .
钾盐的最重要的用途是作肥料。 |
| 9. | Heat was obtained from decomposing manures and hot air flues .
靠肥料分解和烟道为植物提供热量。 |
| 10. | Gypsum answers as manure .
石膏可作肥料。 |
