| 1. | Soil conservation , cropping system , crop nutrient management
水土保持及农作物系统专家 |
| 2. | Ecological and economic evaluation of ryegrass - rice cropping system
水稻种植模式生态经济评价 |
| 3. | Wm in no - tillage corn in wheat - corn double cropping system in north china
免耕制度中的杂草动态 |
| 4. | Effect of cropping system on the manganese in lime concretion fluvo - aquaic soils
耕作改制对砂姜黑土中锰的影响 |
| 5. | Study on productivity and efficiency of six different multiple cropping systems
不同复种方式的生产力和效益研究 |
| 6. | Effects on soil fertilization of different cropping systems on upland red soil
红壤旱地几种耕作制度的土壤培肥效应 |
| 7. | Effects of mixed cropping of maize and peanut on the n nutrition in cropping system
花生混作对系统内氮营养的影响研究 |
| 8. | Rape yield potential analysis of cropping system regions in china based on aez model
模型的我国农作制区油菜产量潜力的分析 |
| 9. | Characteristics of nutrient balance of different cropping systems in paddy field of red earth
红壤稻田种植制度的养分平衡特征 |
| 10. | The most important limiting factor for wheat yield in this cropping system is late planting
该种植方式中最重要的小麦限产因素是迟播。 |
