Here are links to two recorded webinars on irrigation which may be of some interest to crop farmers, from the Plant Management Network.
Summary: Cover crops have remained a popular topic over the past few years, mainly due to the potential of the practice to suppress weeds. Still, one of the greatest benefits of cover crops in a humid environment is arguably the increase in infiltration and water holding capacity, both of which increase the rainfall/irrigation use efficiency of our crop. This presentation defines water use efficiency, explains seasonal trends in water use relative to rainfall, and highlights several research trials and on-farm observations which capture increased levels of infiltration and water holding capacity due to the incorporation of cover crops into the production system. By the end of this presentation, the practitioner will have a basic understanding of the water demands of a cotton crop and the potential impacts cover crops can have on the water resources available to the following cash crop.
Summary: Irrigation scheduling is a critical tool to successfully managing irrigation on crops while maximizing Irrigation Water Use Efficiency, and in some cases increasing quality and yield. Most producers based on national surveys are currently scheduling irrigation via visible stress, however, by this point the crop has already lost yield. The goal of this presentation is to provide insights on how a large scale irrigation scheduling project has been implemented in the state of Georgia, the responses to the project and improvements that can be made. This presentation is focused on Georgia, but is applicable across most of the U.S. Specifically this presentation will provide insights as how to decide on sensor types, how to select where to place the sensors within the field, and how to look at data from the sensors. This presentation also provides information on what producers should consider when adopting soil moisture sensor systems.