| 1. | A empirical analysis of fertility management of transient population in yunnan province 云南省流动人口生育管理的实证分析 |
| 2. | The methods involve soil fertility management as well as reduced * * * . tillage . tailing is breaking up and turning the soil to prepare the ground for planting 这些方法涉及土壤肥力管理和减少耕作。耕作就是翻开土壤使之适于种植。 |
| 3. | The methods involve soil fertility management as well as reduced tillage . tilling is breaking up and turning the soil to prepare the ground for planting 这些方法包括土壤生产力的管理和少耕法。耕田就是翻新土壤,使土壤更容易种植。 |
| 4. | The methods involve soil fertility management as well as reduced tillage . tilling is breaking up and turning the soil to prepare the ground for planting 这些方法包括管理土壤肥力和减少耕作。耕作就是将土壤松碎并翻转,为种植做好准备。 |
| 5. | The methods involve soil fertility management as well as reduced tillage . tilling is breaking up and turning the soil to prepare the ground for planting 这些方法包括土壤肥力管理和少耕作法。耕作就是松碎土壤并翻作,为种植做好土壤准备。 |
| 6. | The methods involve soil fertility management as well as reduced tillage . tiling is breaking up and truing the soil to prepare the ground for planting 这些方法包括象减少耕作那样来进行土壤产量管理.耕作被破坏,并将土壤准备好适合中指的土地 |
| 7. | Young , c . c . 1990 . effects of biofertilizer on the growth and p uptake of legumes . proceedings of a symposium on soil and fertility management of legume crops . 217 - 225 杨秋忠? 1990 ?微生物肥料对豆类生产及磷肥吸收之研究?豆类作物土壤与肥培管理研讨会专集217 - 225 |