Liz Haney is a soil scientist focused on soil health, biology and ecosystem function. She is a co-developer of the Haney Soil Health Test and works closely with farmers, ranchers and land stewards to improve soil structure, organic matter and long-term productivity. Through her work with Ag Soil Regen, she leads workshops and field programs that help growers understand how soil responds to management, inputs and water use. Liz blends scientific insight with practical guidance, making complex soil processes clear and actionable for producers across many regions.

David Sloane, PhD, is an irrigation agronomist with more than 20 years of experience across row crops, tree crops, vine crops and specialty crops. He has worked in both the United States and Australia and has held senior agronomy roles at Metos, the U.S. arm of Pessl Instruments, and at AquaSpy. In addition to his technical work, David has led business development efforts in the agriculture space, bringing new irrigation and environmental measurement technologies into domestic and international markets. He has built and supported dealer networks, trained channel partners and worked directly with growers to improve water management and field performance. As part of the GroGuru leadership team, he contributes deep agronomic insight and plays a key role in strategic decisions. David earned his PhD in Agronomy from the University of Adelaide in Australia.