| 1. | Alternate strips planted to crops each year serve as windbreaks for the fallow strip .
每年播种作物的轮种带可用作休耕带的防风林。 |
| 2. | Farmers find that they can raise most food by a rotation of plants belonging to the most different orders .
农民已知道，把极不同种类的农作物轮种，收获最多。 |
| 3. | The field was planted with barley , oats and rye in rotation
这块地轮种大麦、燕麦和黑麦。 |
| 4. | The rotation of crops keeps the soil healthy and fertile
谷物轮种使土壤保持了肥力和高质。 |
| 5. | Rape and barley are grown is rotation here
这里油菜和大麦轮种。 |
| 6. | But on farms that cannot get fertilizer , the best solution may be the method of rotating sorghum with cowpea
而对那些没有养的，最好解决方法就是轮种高梁和豇豆。 |
| 7. | He travels to colombia from uruguay , where he held talks with president tabare vazquez that focused largely on trade
在波哥大停留期间，他将与一参加美国教育项目的哥伦比亚黑人团体会面，还将听取关于引导农民种植轮种作物的简短报告。 |
| 8. | The ditches are the first pool of diffuse nutrients from rain runoff and field drainage , and are shaped to a net work in the area of the lower reaches of the changjiang river where the cultivation manner of fields are rotation of rice and wheat . now we have learnt little about the mechanisms of pollutants trasport and transformation in ditch wetlands
长江下游水稻-小麦轮种区沟渠湿地呈网络状密集分布，是降雨径流和农田排水的首要汇聚地，我们对污染物在沟渠湿地中迁移转化的机理还知之甚少，本文分析了： 1 |
