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- Increasing Tendency and Stability of Grain Yield per Unit Area of Counties in Huang-huai-hai-Plain 黄淮海平原县域粮食单产的增长趋势及其稳定性比较
- STUDIES ON THE REGIONAL DIFFERENCES AND COUNTER MEASURES FOR REGIONS WITH FLUCTUATING GRAIN YIELD PER UNIT AREA 粮食单产波动的地区性差异及对策研究
- grain yield per unit area 粮食单产
- Ways of Improving Crop Yield Per Unit Area and the Countermeasures. 提高作物单产的途径与对策。
- The source and stable library significantly expanded in RBP wheat due to the increased grain weight, grain number per unit area and then the increased grain yield. 垄作种植方式与传统平作比较,能够扩“源”稳“库”,通过增加千粒重和穗粒数而显著的提高产量。
- Increasing the yield per unit area on the existing cultivated land has potential. 提高现有耕地单位面积产量有潜力。
- There is potential for increasing the yield per unit area on the existing cultivated land. 提高现有耕地单位面积产量有潜力。
- improve grain yield of per unit area 单产提高
- Breed new varieties of tetraploid pentaphyllum, an increase of yield per unit area Pentaphyllum and active ingredient content, to fill the gaps in international and domestic. 培育出的四倍体绞股蓝新品种,增加了绞股蓝单位面积产量和有效成分的含量,填补了国际国内空白。
- Abstract The climatological observation data, reanalysis data and grain/soybean yields per unit area are used to analyze and interpret the impacts of climate change on grain production in this paper. 摘要应用气候观测、再分析资料和吉林省粮豆单产资料,研究了气候变化对粮食生产的影响。
- The climatological observation data, reanalysis data and grain/soybean yields per unit area are used to analyze and interpret the impacts of climate change on grain production in this paper. 摘要应用气候观测、再分析资料和吉林省粮豆单产资料,研究了气候变化对粮食生产的影响。
- Increase the yield per unit area 提高单产
- Evaluation and Contrast for Aquaculture Yield Per Unit Area 水产养殖单位产量的比较与评价
- Pressure is force per unit area. 压力就是电单位面积上的力。
- Grain crop yield per unit area 粮食单产
- grain yield per unit 粮食单产
- Grain yield per unit land 粮食单产
- At present,the per unit area yield of grain varies widely in the same districts,the highest yield being 7,500 kg to 15,000 kg per hectare,and the lowest 3,000 kg to 5,000 kg. 目前,中国同一类型地区粮食单产水平悬殊,高的每公顷7500-15000公斤,低的只有3000-5000公斤。
- In 1952 the average grain yield per mu (one ha equals 15 mu) was 80 kg and there were only 125 kg of grain per person. 1952年,西藏每亩(15亩合1公顷)粮食产量平均只有80公斤,人均占有粮食仅125公斤。
- The drag is a force per unit area of the layer. 拖力是流层单位面积的力。