| 1. | Farmers rotate their crops so that the soil will remain fertile .
为保持土壤肥力，农民搞作物轮作。 |
| 2. | The trends of the research on soil fertility information system
土壤肥力信息系统研究动态 |
| 3. | Evolution of soil fertility in taihu region and its causes
太湖流域土壤肥力演变及原因分析 |
| 4. | Research progress in the integrated evaluation of soil fertility
土壤肥力综合评价研究进展 |
| 5. | Effect of preserved szechuan pickle leaves return to soil on soil fertility
榨菜叶还田对土壤肥力的影响研究 |
| 6. | Relationship between organo - mineral colloidal complex and fertility of purple soil
无机复合体与土壤肥力的关系 |
| 7. | Effect of matching use of straw and chemical fertilizer on soil fertility
秸秆还田与化肥配合施用对土壤肥力的影响 |
| 8. | Strip check space varies with plot slope , soil fertility and irrigation
条畦宽度随地块坡度、土壤肥力和灌溉而变化。 |
| 9. | Effects of applying organic manure on soil fertility and annual grain output
有机肥对土壤肥力和周年粮食复合产量的影响 |
