您要查找的是不是：
- Current outbreak, yield loss estimation and controlling countermeasures of paddy rice borer in China 我国水稻螟虫大发生现状、损失估计及防治对策
- yield loss estimation 产量损失估计
- A Loss Estimation Method of Monitoring and Estimating the Yield Loss of Wheat by Drought in Dry Farming Areas in Northwest of China 中国西北旱作小麦干旱灾害损失评估方法研究
- Estimation of yield loss of bakanae disease of rice 水稻恶苗病产量损失率测定
- Loss estimation of water pollution and ecological benefit of wastewater treatmentA case study. 水污染损失估算与治理水污染生态效益实例分析
- Studies on Yield Loss and Dynamic Economic Threshold of Cowpea Aphid Aphis craccivora Koch on Cowpea, Vigna sp. 豆蚜危害豇豆损失率及动态经济阈值研究。
- Title： The loss estimation control criterion of leaf spot blight (Coccostroma arundinariae)of Phyllostachys heterocycla cv. 关键词： 毛竹;叶斑枯病;竹独足座菌;损失估计;
- Plant-parasitic nematodes cause heavy yield losses in many crops . 在许多农作物中，植物寄生线虫引起重大损失。
- Accoring the results of prediction and computer program, it cna satisfy the need of loss estimation of earthquake and counter measure for earthquake disaster. 根据本项研究提供的结果和计算程序，可以满足地震对策和地震损失估计对地震中长期概率预测的需要。
- Sharp eyespot of wheat is one of the most important diseases causing severe yield loss in Yangtze River and Huanghe River Region of China. 分别用玉米粉-砂、麦粒和玉米秸秆作为小麦纹枯菌生长基质，培养获得小麦纹枯病菌接种物。
- The bacterial leaf blight (BLB) is an important vascular disease to irrigated rice and may cause substantial yield loss under serious conditions. 摘要白叶枯病系水稻一重要维管束型病害，严重感染将可能导致明显减产。
- Aberrant weather in cane growing States such as Maharashtra, Andhra Pradesh and Karnataka has created risk of yield loss. 谢亚龙：实话告诉你，这次让你退场的目的就是让全国人民骂你。
- Soybean mosaic virus (SMV) is one of the worldwide diseases, which causes yield loss and quality deficiency severely in soybean. 摘要大豆花叶病毒病是为害大豆生产的世界性病害，严重影响大豆产量和品质。
- Effect of different densities of Empoasca vitis on the yield loss rate and the damage indexes of fresh tea leaves was evaluated with the net method. 摘要利用网罩法测定了假眼小绿叶蝉不同虫口密度对茶鲜叶产量及受害指数的影响。
- An In addition, the researchers found that the plants good could survive on only 30% of the normal amount of irrigation water. Ill Yield loss was manner minor, they said. 除此之外，研究人员发现，这些转基因植物可以在只有正常值30%25的水量灌溉条件下生存下来。他们说：生长损失是次要的。
- On the basis of the results achieved above, the models for disease index and yield loss ratio and for disease index and weight per kilograin were established. 千粒重随着病情指数的增加呈下降趋势;并在此基础上组建了病情指数与产量损失率的关系模型;病情指数与千粒重的关系模型.
- On the basis of the results mentioned above, the model for disease index and yield loss ratio, disease index and the kilograin weight was established, respectively. 千粒重随着病情指数的增加呈下降趋势，并在此基础上组建了病情指数与产量损失率的关系模型，病情指数与千粒重的关系模型。
- We will never yield to invaders. 我们绝不会向侵略者屈服。
- A field experiment was conducted to determine the relationships between the yield loss of summer maize and the infestations of Amaranthus retroflexus and PoHulaca oleracea. 为了明确杂草种类对杂草密度与夏玉米产量损失之间的函数关系的影响及反枝苋和马齿苋为害夏玉米的产量损失模型,在田间开展了此项研究。
- The accumulated loss of photosynthate was 11.4% and yield loss was 17.8% at ambient O3 concentration in the wheat growth period under sufficient moisture and fertilizer supplies. 对冬小麦春后生育期（3-5月）的研究表明，水肥适宜时，由O3影响造成的该地区冬小麦干物质累积总损失量为11.;4%25，产量损失为17
