Measuring Soil Electrical Conductivity to Delineate Zones of Variability in Production Fields
Measuring Soil Electrical Conductivity to Delineate Zones of Variability in Production Fields
复制标题
测量土壤电导率以描绘生产领域的变化区域
DOI：
10.4148/2378-5977.1386
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
S. Kulesza
中科院分区：
文献类型：
--
作者：
G. Sassenrath;S. Kulesza
堪萨斯州东南部的生产领域变化很大。海拔的差异和土壤质地的变化导致植物有效水分和养分的不均匀，导致田间作物产量和产量的显着不一致。这些变化使管理变得复杂，并影响该领域不同领域的投资回报。可以通过多种方法识别变异区域，包括目视检查、远程图像和产量图。评估土壤变异性的另一种方法是测量土壤的电导率。测量表观电导率可以绘制土壤特性的空间分布图，可用于识别生产的潜在限制并制定特定地点的管理。田间变异性的描述可用于确定生产投入目标，以更好地将潜在作物产量与投入相匹配，从而最大限度地提高投资回报。
Production fields in southeast Kansas are highly variable. Differences in elevation and changes in soil texture contribute to unevenness in plant-available moisture and nutrients, resulting in significant inconsistencies in crop production and yield within a field. These variabilities complicate management and impact the return on investments from different areas of the field. Identification of the regions of variability is possible through several methods, including visual inspection, remote imagery, and yield maps. An additional method of assessing soil variability is by measuring the electrical conductivity of the soil. Measuring apparent electrical conductivity gives a map of the spatial distribution of soil properties, which can be used to identify potential limitations to production and develop site-specific management. Delineation of within-field variability can be used to target production inputs to better match potential crop yield with inputs to maximize return on investment.