Delineation of Sensor Based Management Zones to Improve Farm Profitability and Lower Environmental Risks in Potato Cropping Systems

加拿大的马铃薯生产通常涉及在生长季节统一施用农用化学品（肥料、石灰和杀虫剂），而忽略了田间存在的空间和时间变化。均匀化应用不仅增加了生产成本，而且对我们的环境产生了不利影响（温室气体排放量增加，硝酸盐渗入次表层/地下沃茨，营养物流入水体，该项目将满足爱德华王子岛马铃薯委员会的迫切需要。找到一个新颖的和创新的解决方案，以根据需要指导营养管理策略。该项目将评估基于电磁感应的传感器（DualEM）开发管理区（MZ）的可行性和实用性，以针对作物投入（肥料和石灰）的特定地点应用。本研究的主要目标是：1）使用物理土壤采样和分析在整个PEI的可变土壤条件下校准DualEM传感器，2）确定DualEM传感器的最佳频率，以感测/预测土壤肥力状况，用于特定地点的养分管理，以及3）描绘基于非破坏性传感器的MZ，以根据需要优化作物投入。按需进行养分管理在提高肥料/石灰使用效率、降低生产成本和减轻环境风险方面具有很大潜力。目前，马铃薯理事会没有可供PEI实施特定地点养分管理的协议。该项目将为Potato Board PEI提供一种创新的非破坏性方法，使用DualEM传感器开发基于地图的MZ。开发的MZ可以精确地优化养分管理。此外，这项研究将提供一个新的知识流的基础上收购necessarydata支持/实施特定网站的养分管理，以提高经济和环境效益。

Potato production in Canada typically involves uniform application of agrochemicals (fertilizer, lime andpesticides) during a growing season, ignoring spatial and temporal variations that exist within fields. Uniformapplication not only increases the production cost but also adversely affects our environment (increasedgreenhouse gas (GHG) emissions, nitrate leaching into sub-surface/ground waters, nutrient runoff into waterbodies, damaging aquaculture and fisheries and deterioration of air quality).This project will address the urgent needs of the Potato Board Prince Edward Island (PEI) to find a novel andinnovative solution to direct nutrient management strategies on an as-needed basis. This project will evaluatethe feasibility and practicality of the electromagnetic induction based sensor (DualEM) to develop managementzones (MZs) for site-specific application of crop inputs (Fertilizer and lime). The main goal of this research isto: 1) calibrate the DualEM sensor in variable soil conditions across the PEI using physical soil sampling andanalysis, 2) identify the optimal frequencies of the DualEM sensor to sense/predict soil fertility status forsite-specific nutrient management, and 3) delineate non-destructive sensor based MZs to optimize crop inputson an as-needed basis. Nutrient management on an as-needed basis has a strong potential to increasefertilizer/lime use efficiency, reduce production cost, and mitigate environmental risks.Currently, there are no protocols available for Potato Board PEI to implement site-specific nutrientmanagement. This project will provide Potato Board PEI with an innovative and non-destructive method todevelop map-based MZs using a DualEM sensor. The developed MZs can optimize nutrient managementprecisely. Furthermore, this research will provide a new knowledge stream based on acquisition of necessarydata to support/implement site-specific nutrient management to improve economic and environmental benefits.