Innovative irrigation scheduling for peanuts via the use of advanced technology in Alabama, Florida and Georgia


University of Georgia

Budget ID:


Project ID:


Report BID:




Southeast (GA, FL, AL)

State Group:


Project Fiscal Year:




Report Type:

Report Received Date:



Project NPB Budget:


The objective of this project was to evaluate the performance of VRI and the UGA SSA in Georgia. The irrigation experiment was carried out during the 2017 growing season in a peanut field located at Leary, Ga. The center pivot of the field was equipped with VRI technology. Before planting the VRI system was tested for uniformity to ensure it was evenly and adequately applying irrigation. After realizing that the pivot and the VRI system were working properly the field was divided into Irrigation Management Zones (IMZs) by using field properties such as soil electric conductivity, elevation data, hydrology data, historical aerial images of the field and satellite images. The IMZs were delineated by using UGA's EZZone software. After IMZ delineation, the field was divided into eight alternating conventional irrigation and dynamic VRI strips. In four of the eight strips, irrigation scheduling was based on the Irrigator Pro soil temperature scheduling recommendations and the irrigation water applied uniformly. The other four strips were irrigated individually based on UGA SSA recommendations. After planting, UGA SSA sensors were installed in each of the IMZs. Additionally, we installed several tipping bucket rain gages close to the nodes to evaluate the VRI system performance and understand how fast the UGA SSA nodes respond. During the 2017 growing season the UGA SSA website was checked every morning to create prescription maps. The field was harvested on approximately I 0/18/17. 

Click to Download

You must be logged in to view this item.

This area is reserved for members of the news media. If you qualify, please update your user profile and check the box marked "Check here to register as an accredited member of the news media". Please include any notes in the "Supporting information for media credentials" box. We will notify you of your status via e-mail in one business day.