Most of us know a temperature lower than 32°F would kill tender vegetables like tomatoes, peppers, melons, and cucumbers. Home gardeners would wait to plant those crops after the last frost passed, but commercial farmers may take the risk of planting earlier to capture early-season premium prices. Farmers use various strategies, i.e., high tunnels, low[Read More…]
Crop Culture
We are concerned about frost/freeze damage to the crops at this time of year. As I am writing this article, we had forecasted low temperatures in the lower 20sºF on March 14 and 18 in southern Indiana. How does this affect plasticulture strawberries? I want to share my thoughts in this article. Before discussing whether[Read More…]
Grafted tomatoes show advantages, particularly for high tunnel production. A Purdue extension publication, Techniques for Tomato Grafting, and the video provide a step-by-step guideline for small growers to explore this technique. I am often asked. When should I start to plant the seeds to produce grafted plants? The chart below shows a general timeline and materials needed to produce[Read More…]
A common approach in winter production is to allow crops to reach maturity or harvestable size by the end of November. High tunnels are then used as a ‘living refrigerator’ from December to around the middle of February. Crops are harvested as needed in the darkest and coldest periods. This approach, however, did not work[Read More…]
In April we announced a new bulletin “Scheduling Fall and Winter Vegetable Production in High Tunnels”, available from the Purdue Education store at https://edustore.purdue.edu/item.asp?Item_Number=HO-330-W . With the fall/winter high tunnel season underway we are now announcing it again. The publication brings together information collected on farms and research stations in Indiana and Ohio to provide[Read More…]
5I have heard concerns about the size of strawberry plants this year. To provide a timely update of crop status, we created a blog site where there will be frequent updates of plasticulture strawberry status across Indiana. If you are interested in learning the current crop status, please visit this site https://www.purdue.edu/hla/sites/guan/blog/. We saw a[Read More…]
Row covers are used in plasticulture strawberry production for winter protection. There is also interest in using row covers to encourage fall growth. The different purposes of using row covers affect when farmers should consider applying the row covers, and what type of materials best meet these goals. At Strawberry Chat on Plasticulture production, Brad[Read More…]
Thanks to my University of California Cooperative Extension colleagues, I visited central valley vegetable production last week. Undoubtedly, I learned a lot on this trip. I want to share what I learned with Indiana growers in a few newsletter articles. This short article highlights two things I saw farmers use to extend early-season crop production.[Read More…]
At the 2022 Southwest Indiana Melon and Vegetable Growers Annual Meeting, 17 watermelon farmers and 2 agricultural professionals shared their irrigation and fertilization management practices used for watermelon production in Indiana. These individuals grow or provide services for watermelon acres from less than 50 acres up to 2,000 acres over the past five years. We[Read More…]
We are getting close to the time of year when I begin to get phone calls about strange symptoms on tomato plants in greenhouses. Too often, the problem is ethylene damage. Read on to find out how to avoid this problem. Tomato plants with ethylene damage often have leaves that are curled down and stems[Read More…]