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- miltiple cropping systems 多熟制植物
- Soil and climatic variations influence cropping systems. 土壤和气候影响种植制度。
- These new strains of seed lend themselves to the reformed cropping system. 这些新品种很适应这种改革了的种植制度。
- Also rape seed yield per area in the mix cropping system was the highest. 间作与混作处理的油菜产量在可比面积上比油菜单作产量高，其中混作产量最高。
- 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。
- In many upland situations, however, only perennial tree based cropping systems will allow sustainability. 然而在许多热带旱地上,只有以多年生树为主的种植制度才具持续性。
- This study was conducted as part of the Alternative Cropping Systems(ACS) study at Scott,Saskatchewan. 该研究是加拿大Saskatchewan Scott农作物轮作系统(ACS)研究的一部分。
- An even longer list of needs can be produced to integrate knowledge of these specific areas into cropping systems. 可列出更多项目将知识综合进种植制度这一特殊领域。
- The agrometeorological technique for making hybrid rice seeds is applicable to zones of other rice cropping systems. 研究得到的两系法杂交稻制种技术的气象学方法可供其他熟制地区应用。
- The study shows that P3 and P4 cropping systems better preserves soil and water loss than the other two systems. 种植试验结果表明：紫花苜蓿+青蒿模式和连翘+紫苏种植模式能较好地保持水土。
- The effect of cropping system on the microelements in lime concretion fluvo-aquic soils. 耕作改制对砂姜黑土微量元素的影响。
- Effect of long-term fallow and cultivation on soil fertility in rice-based cropping system. 水旱轮作地区土壤长期休闲与耕种的肥力效应。
- Andhra Pradesh Agricultural University, Hyderabad: The objective is to evaluate factors for yield maximization in rice-groundnut cropping system. 安德拉邦农业大学（海德拉巴）：试验目标是评价稻-花生耕作制下达到最高产量的因素。
- Application of phosphorus fertilizer to no tillage cropping systems appears to be complicated by the fact that it cannot be incorporated. 免耕耕作制下磷肥的施用似乎很复杂，因为此时无法将磷肥和土壤掺混。
- In addition to these specific product advantages, a large amount of agronomic evidence supports the use of urea in many cropping systems. 除了这些特定的产品优点外，大量的农学事实都支持在多数种植系统中使用尿素。
- Harvest date may be moved up by 7-21 days depending on the cropping system and environmental conditions. 收获期依种植制度和环境条件，可提前7~21天。
- It becomes obvious that nutrient inputs significantly influence the rates of economic return in upland cropping systems. 显而易见，养分投入显著影响旱地种植制度下的经济收入。
- 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。
- The results show that PSW is expressed as a linear function of seasonal precipitation,which is different in various cropping systems. 结果表明，土壤水渗漏量与季节内降水量呈正相关，但在不同作物种植制度下有不同的相关关系式。
- The characteristics,experience,theory and assignment of the cropping system in China are also discussed. 论述了我国耕作制度的特点、区划和理论,以及改制的内容、经验和任务;
