5 or is not suitable if the spatial distribution of the sensed soil properties (eg, soil electrical
conductivity) does not change during the growing season. On the other hand, more dynamic …

The goal of accurately mapping soil variability preceded GPS-aided agriculture, and has
been a challenging aspect of precision agriculture since its inception. Many studies have …

This chapter reviews proximal soil sensing (PSS). Our intent is for it to be a source of up-to-
date information on PSS, the technologies that are currently available and their use for …

The basic objectives of site-specific management of agricultural inputs are to increase
profitability of crop production, improve product quality, and protect the environment …

Since 1996, more than a dozen on-the-go soil sensing platforms have been under
development at Purdue University, the University of Nebraska-Lincoln and now McGill …

Soil Electrical Conductivity Page 1 www.ext.vt.edu Virginia Cooperative Extension programs and
employment are open to all, regardless of race, color, national origin, sex, religion, age, disability …

Site-specific crop management (SSCM) aims to improve production efficiency by adjusting
crop inputs, especially fertilizers and agro-chemicals, to varying local conditions within a …

Current soil sampling methods, such as conventional and hectare grid sampling, do not
provide a cost effective way in which to gather GPS referenced data at an adequate …

In addition to the overview of diversity in soil sensing technologies, this chapter presents four
case studies to illustrate the practical use of these technologies to enhance precision …

One of the basic practices of precision agriculture is the requirement to define spatial
variability in soil properties within an agricultural field to make decisions that can maximize …