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- multiple cropping system 复种指数
- Since the Sui Tang ,The ripe multiple cropping system of paddy barley two take shape ,It is the main producing area of clean polished round-grained nonglutinous rice of Jiangsu 。 隋唐以来,已形成稻麦两熟复种制,是江苏白粳米的主要产区。
- Studies on the Super-high Yield Characteristics of Three Intensive Multiple Cropping Systems in Huanghuaihai Area 黄淮海农区集约种植制度的超高产特性研究
- Study on Sustained Cultural Techniques with High-yield for Relay and Inter-cropping Com in Multiple Cropping Systems in Drylard 旱地多熟间套春玉米持续高产技术研究
- 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。
- Multiple cropping systems 种植制度
- The Multiple Cropping Systems of Maize with Other Crops in Dry-land Area, in Bijie of Guizhou Province 贵州毕节地区旱地玉米高产高效间套作模式研究
- The grain-sown area will be stabilized at about 110 million ha through the increase of the multiple crop index. 通过提高复种指数,使粮食作物播种面积稳定在1.;1亿公顷左右。
- 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。
- If multiple cropping is practiced correctly it will actually lead to higher yields than monoculture because of more complete use of resources. 如果复种实行正确它实际上将导致更高的产量比单作,因为更完整的利用资源。
- 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。
- Soil and climatic variations influence cropping systems. 土壤和气候影响种植制度。
- Because the multiple cropping index calculated on the base of statistic data is not ensured, there will be some deviation in policy-making. 耕地复种指数是衡量耕地资源集约化程度的基础性指标,也是国家宏观评价耕地资源利用状况的重要技术指标。
- 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 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;
- So increasing forage crop production is a major approach of the cropping system adjustment in this area. 因此,大力发展饲料粮生产是今后黄土高原种植业结构调整的必然方向。