搜索结果: 1-7 共查到“农学 PAN”相关记录7条 . 查询时间(0.14 秒)
Evaluation of pan coefficient equations in a semi-arid Mediterranean environment using the ASCE-standardized Penman-Monteith method
Pan Evaporation Reference Evapotranspiration ASCE-Standardized Penman-Monteith
2013/2/27
Reference crop evapotranspiration (ETo) is essential for irrigation, water resources management and environmental assessment. The indirect estimation of ETo is based a) on energy budget approach using...
了解滇柏大痣小蜂在云南省的潜在分布区域,对于科学评估其危害并采取正确的应对策略具有重要意义。笔者利用该物种的分布点数据和环境数据,通过GARP模型预测了滇柏大痣小蜂在云南省的潜在分布区域。在选出的10个最优模型中,216.6<x2<269.5,1.50×10-60<P<4.95×10-49,表明这些模型对该小蜂在云南省的潜在分布区预测有显著的统计学意义。在24°~26°N一线,年平均温度14.5℃...
采用具有光催化活性的TiO2/PAN纳米纤维毡处理模拟废水中的苯酚。结果表明:纺丝液浓度聚丙烯腈(PAN)质量分数为5%的TiO2/PAN纤维毡对苯酚的降解率最高,对浓度100、50、20和10 mg/L苯酚的降解率分别为51.1%、87.5%、99.6%和100.0%。光催化反应符合一级反应动力学。纤维毡循环使用5次后对于浓度20 mg/L苯酚的降解率保持在87.4%。
An Attempt to Measure Evaporation from Class-A Pan Using Naphthalene Sublimation
Class-Apan Evaporation Naphthalene Sublimation
2010/3/17
An Attempt to Measure Evaporation from Class-A Pan Using Naphthalene Sublimation.
Irrigation Scheduling of Drip-Irrigated Tomatoes Using Class A Pan Evaporation
irrigation scheduling tomatoes drip evaporation
2009/1/13
This study was carried out to investigate the irrigation schedule of drip-irrigated tomatoes (Lycopersicon esculentum cv. Dual Large, F 1) using Class A pan evaporation. Tomatoes plants were grown in ...
The PAN Pesticide Database brings together a diverse array of information on pesticides from many different sources, providing human toxicity (chronic and acute), ecotoxicity and regulatory informatio...
农药行动网络(PAN)
农药行动网络 农药 PAN Pesticide Action Network
2007/12/19
农药行动网络(PAN)成立于1984年,是一个来自60多个国家的600多个无政府组织、机构和个人共同参与的国际组织网络,倡导采用具有良好生态影响的方法取代有害农药的使用。PAN的计划和活动由5个地区性中心(非洲中心、亚太中心、欧洲中心、北美中心和拉美中心)协调管理。本站点提供该网络的有关信息,包括国际活动及各地区中心的链接。