| 1. | Without soil fertility treatments , crop production reduces soil productivity
不对土壤进行肥力处理，作物生产降低土壤生产力。 |
| 2. | It is one of hotspots in soil erosion researching that how soil erosion affects soil productivity
土壤侵蚀对土壤生产力的影响是当前水土保持领域界的研究热点。 |
| 3. | Improving soil productivity by managing nutrients and organic matter with conservation agriculture . . .
. ppt , 4mb通过保护性农业调节土壤养分和有机质提高土壤生产力. |
| 4. | The integrated soil improvement such as application of organic fertilizers , silica fertilizer , and exotic soils , is needed to maintain soil productivity
也需要施用有机肥、硅肥和客土等综合土壤改良技术来维持土壤生产力。 |
| 5. | After year ' s cultivation , the different soil fertility of each site resulted in diversities of soil productivity , which show the high spatial variability of soil fertility
土壤耕作多年，每个田块的土壤肥力不同导致生产力的不同，说明土壤养分含量具有高度的空间异质性。 |
| 6. | The goals of conservation agriculture are to provide better standard of living to farm families , maintain or improve soil productivity and quality , benefit the overall environment and better withhold the variations in weather
保护性农业的目标是为农民提供更好的生活水平，维持或提高土壤生产能力和质量，保护环境，并提高农民适应气候变化的能力。 |
| 7. | As a species of mixed forests , nitrogen fixation trees play an important role in improving forest land nutrient and moisture status , maintaining soil productivity , enhancing forest land productivity , and accelerating main species growth
作为混交树种，在混交林中发挥着改善林地养分及水分状况，维持地力，提高林地生产力，很好地促进主要树种生长的重要作用。 |
| 8. | Virtual plant model has an important significance in forecast of crop yield , evaluation of soil productivity , analysis of resource direction of crop planting , study of crop growth mechanism and crop reaction to environment
摘要虚拟植物生长技术对作物产量预测、土地生产力评价、资源环境分析、作物栽培指导、作物生长机理研究以及调控作物生长发育及其对环境的反应研究都有著十分重要的意义。 |
