| 1. | A rotation of personnel ; crop rotation 员工的轮流替换;农作物的轮作 |
| 2. | Crop rotations with legumes help maintain fertility and soil microbiology 与豆类轮作可以保持土壤的肥力和微生态。 |
| 3. | Effects of long - term crop rotation and continuous cropping on nitrogen in albic soil 长期轮作和连作对白浆土中氮素的影响 |
| 4. | Effects of crop rotation of pineapples - sugarcane on sugarcane growth and soil microflora 甘蔗轮作制度对甘蔗生长及土壤生态的影响 |
| 5. | Responses of soil water and fertility to the alfalfa crop rotation in semiarid loess area of china 半干旱区不同作物与苜蓿轮作对土壤水分恢复与肥力消耗的影响 |
| 6. | The annual double - crop rotation system , wheat and corn , is the most popular planting pattern in north china 华北地区小麦-玉米一年两熟制是最普遍的种植模式。 |
| 7. | Organic methods , which rely on crop rotation , manure and compost in place of fertiliser , are far less intensive 有机种植需要轮作生产,需要施肥堆肥来代替人工化肥,也并非集约型生产。 |
| 8. | Organic methods , which rely on crop rotation , manure and compost [ 1 ] in place of fertiliser , are far less intensive 有机生产方式不讲究精耕细作,不使用化学肥料,主要依靠轮作、粪肥和混合肥。 |
| 9. | Crop rotation plus fertilizer application produces the highest crop yields and maintains the highest soil n and organic matter levels 作物轮作加施肥产生最高作物产量,并保持最高土壤氮和有机质水平。 |
| 10. | Crop rotations without addition of fertilizers help maintain soil organic carbon and n levels , but do not maintain high productivity levels 不施肥的作物轮作有助于维持土壤有机碳和氮水平,但不能维持高生产力水平。 |