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大田尺度下车载式土壤多参数测量方法研究（On-the-go Measuring Method of Soil Parameters in Field-scale）
土壤参数 车载式测量 大田尺度
2010/12/29
应用自行研制的土壤含水量、电导率与耕作阻力车载测试系统以及EM38电导率测试仪，在特定的耕作和施肥管理制度试验田中进行大田尺度下的土壤多参数车载测量研究。在土壤参数空间分布信息基础上进行相关分析，结果表明复合传感器具备农田土壤含水量和电导率变异响应能力，进一步建立了农田土壤电导率与含水量、耕作阻力以及施肥信息之间的统计预测模型。
燃料在直圆管形状的微尺度燃烧器中进行预热燃烧，对比不同预热温度下的燃烧器工作性能，检验强化预热对促进微燃烧稳定的效果。实验选择燃料混合气体流量为0.12、0.24、0.36L/min，预热温度分别为室温23℃和250、500℃。实验结果显示，在室温，燃料混合气体流量0.12L/min下，燃烧器可燃极限当量比为0.339~3.639。预热温度上升到250℃时，可燃极限当量比范围增大到0.317~...
Sampling Design for Global Scale Mapping and Monitoring of Agriculture
Global Agriculture Sampling Stratification Crop Monitoring MERIS
2016/4/8
In the changing global environment there is a need for an operational system for monitoring of world food crop production using satellite observations. It is useful in two primary missions – food secu...
Technical and scale efficiency of corporate farms in Slovakia
corporate farms technical efficiency scale efficiency data envelopment analysis
2014/3/31
The paper presents results of the analysis of technical and scale efficiency of 1 147 Slovak corporate farms (agricultural co-operatives and commercial farming companies) in 2000. The objective of the...
Proposal of a modified wage tariff scale in a forest enterprise in the Czech Republic
company human resources salary monthly tariff scale
2014/3/29
The paper analyses the pay system in a particular enterprise in the Czech Republic and proposes a change in this system. The establishment of two scales based on pay classes per month is proposed: one...