Winegrowing regions in Washington State have many unique challenges from salty soils, to low organic matter, to nematodes. Devin Rippner, Research Viticulture Soil Scientist with USDA-ARS and his colleagues at Washington State University are developing a research vineyard to study soil health building practices. They are testing a variety of management strategies including adjusting irrigation volume to correct for salt build-up, mowing for weed management, compost applications and synthetic fertilizers, and different cover crops. The team is tracking the cost of each practice and will ultimately evaluate wine quality in the coming years. Taking a deeper dive into the future of soil sampling, Devin explains X-ray CT imagery. He has used this technology to evaluate the structure and organic matter from soil columns and aggregates. X-ray CT imagery has also been used to evaluate the impact grape seeds have on tannin flavor profiles. Resources: 80: (Rebroadcast) The Goldilocks Principle & Powdery Mildew Management90: Nematode Management for Washington GrapesA workflow for segmenting soil and plant X-ray CT images with deep learning in Google’s ColaboratoryDevin Rippner, USDA ARSFunctional Soil Health Healthy Soils PlaylistRed Wine Fermentation Alters Grape Seed Morphology and Internal Porosity Soil Health in Washington Vineyards Vineyard soil texture and pH effects on Meloidogyne hapla and Mesocriconema xenoplaxWashington Soil Health Initiative Vineyard Team Programs: Juan Nevarez Memorial Scholarship - Donate SIP Certified – Show your care for the people and planet Sustainable Ag Expo – The premiere winegrowing event of the year Vineyard Team – Become a Member Get More Subscribe wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources. Learn more at www.vineyardteam.org. Transcript [00:00:00] Beth Vukmanic: Wine growing regions in Washington State have many unique challenges from salty soils to low organic matter to nematodes. [00:00:13] Welcome to Sustainable Wine Growing with the Vineyard Team, where we bring you the latest in science and research for the wine industry. I'm Beth Vukmanic, Executive Director. [00:00:23] In today's podcast, Craig McMillan, Critical Resource Manager at Niner Wine Estates, with longtime SIP certified vineyard and the first ever SIP certified winery, speaks with Devin Rippner, Research Viticulture Soil Scientist with USDA ARS. [00:00:41] Devin and his colleagues at Washington State University are developing a research vineyard to study soil health building practices. [00:00:49] They are testing a variety of management strategies, including adjusting irrigation volume to correct for salt buildup, mowing for weed management, Compost applications and synthetic fertilizers and different cover crops. The team is tracking the cost of each practice and will ultimately evaluate wine quality in the coming years. [00:01:08] Taking a deeper dive into the future of soil sampling. Devin explains X ray CT imagery. He has used this technology to evaluate the structure in organic matter from soil columns and soil aggregates. X ray CT imagery has also been used to evaluate the impact that grape seeds have on tannin flavor profiles. [00:01:28] Now let's listen in. [00:01:29] Craig Macmillan: Our guest today is Devin Rippner. He is a research soil scientist with the USDA agricultural research service. He's based out of Prosser, Washington, and he's also an adjunct in the department of crop and soil sciences with Washington state university. [00:01:46] Devin, thanks for being here. [00:01:48] Devin Rippner: Absolutely. Pleasure to be here, Craig. [00:01:50] Craig Macmillan: You are on the leadership team of the Washington State Soil Health Initiative. I think it's a pretty cool little program. Tell us what it is and what it's all about. [00:01:59] Devin Rippner: Yeah, absolutely. So the Washington State Legislature allocated funding to study soil health and soil health building practices in a variety of agricultural systems and so to access that money a number of groups put in competitive proposals at the Prosser Irrigated Agriculture Research and Extension Center, we put in a proposal to study soil health in wine grape systems. [00:02:24] Originally, we actually had it in juice grapes as well, but we were not able to get enough funding for both. Juice grapes are actually a big product out of Washington. [00:02:32] Craig Macmillan: I did not know that. That's interesting. What varieties? [00:02:34] Devin Rippner: Mostly Concord? [00:02:36] I'm less familiar with it. It's something I would, I would like to work in cause they have different constraints than wine grapes. [00:02:41] Ours is focused on wine grapes, but there are systems ...
