搜索结果: 1-4 共查到“农田测量 Research”相关记录4条 . 查询时间(0.125 秒)
New research accurately predicts Australian wheat harvests months in advance（图）
accurately predicts Australian wheat harvests advance
2019/10/30
Topping the list of Australia's major crops, wheat is grown on more than half the country's croplands and is a key export commodity. With so much riding on wheat, accurate yield forecasting is needed ...
基于相位检测原理的TDR土壤电导率测量研究（Research of Soil Conductivity Measuring Technique with TDR Based on Phase Detecting Principle）
土壤 电导率 盐分 时域反射
2010/12/29
介绍了基于相位检测的时域反射（P-TDR）技术的工作原理。对8种不同盐分含量的砂壤土土样在5个含水量水平下进行实验，结果显示，信号的反射系数随电导率增加单调减小。分别采用线性和二次多项式对测量结果进行建模实验，并选择二次多项式为P-TDR电导率测量模型，模型的决定系数达0.812以上。土壤含水量对电导率测量有较大影响，在分析了土壤含水量与多项式系数关系的基础上，最终建立了以土壤含水量和反射系数为变...
流变态土壤切削试验用室内土槽与测试系统设计（Research on Indoor Soil Bin and Test System for Rheological Soil Tillage）
水田 试验土槽 测试系统
2010/12/28
根据农业机械在水田作业的实际情况，设计了模拟田间实际作业的水田试验土槽。阐述了设计方案及设计过程，提出了解决湿基制备、土壤含水率控制等问题的方法。根据室内试验土糟的功能和特点，开发了与之配套的试验数据实时采集系统。
Research of biological agents effects on reduction of ammonia concentration in stables of intensive farm animals breeding
ammonia emissions living environment slurry pigs poultry
2014/2/28
In the study are presented results of experiments using bio-technological agents Amalgerol, Bio-Algeen G-40 and Biostrong 510 in intensive pig, poultry breeding and cattle slurry treatment for ammonia...