Gregory R. Bock & Jamie A. Goode 
Precision Agriculture [PDF ebook] 
Spatial and Temporal Variability of Environmental Quality

This book investigates new agricultural systems such as organic and green manuring, as well as integrated pest management practices, and looks at how they can improve farm productivity against the enhancements for the environment. Much of the information presented focuses on microinvestigation of the soil, and on the effects of soil variability within fields on yields and nutrient flows.