What Farmers Need (from non-farmers)
Audio Brief
Show transcript
This episode covers strategic support systems for local agriculture, specialized techniques for managing persistent grasses, and cost-effective ventilation solutions for high tunnel structures.
There are three key takeaways from this discussion. First, non-farmers can provide vital help to growers by managing logistics, administrative tasks, and carbon waste streams. Second, eradicating persistent rhizome grasses requires a strategic combination of light tillage and sequential tarping to exhaust root systems. Third, while ridge vents offer superior climate control in high tunnels, smaller structures can achieve efficient ventilation using high hip boards.
Small-scale agriculturalists often face a critical deficit in administrative and organizational support rather than just manual field labor. Individuals passionate about local food systems can deliver immense value by taking on specialized tasks like grant writing, bookkeeping, or managing decentralized food hubs. Additionally, advocates can build viable local businesses by sourcing regional carbon waste streams like wood chips and straw, then delivering them directly to no-till growers who rely on these inputs.
On the agronomic front, managing persistent rhizome-based grasses requires more than passive tarping because pale grass blades under cover will quickly green up and recharge roots once exposed to sunlight. To successfully clear a bed, growers should perform a very shallow tillage of two to three inches after removing the initial tarp and then immediately retarp the area. This sequence triggers dormant weed seeds to germinate and die in the dark, resulting in a cleaner and more manageable planting bed.
For environmental control, ridge vents dramatically improve high tunnel thermodynamics by allowing trapped hot air and fungal spores to escape through the roof. This keeps the growing space significantly cooler, which prevents summer blossom drop and reduces disease pressure on sensitive crops like tomatoes. However, for tunnels fifty feet or shorter, operators can bypass the high cost of ridge vents by utilizing high hip boards and wide end walls to facilitate ample cross-ventilation.
By combining community-based administrative support with precise soil and climate management, small-scale growers can significantly improve both their operational efficiency and crop yields.
Episode Overview
- This episode of "Growers Daily" features a mailbag Q&A format, addressing questions from Patreon supporters of No-Till Growers.
- The episode explores ways non-farmers can support local agriculture, strategies for managing persistent grasses during soil preparation, and the cost-benefit analysis of ridge vents in high tunnels.
- This content is highly relevant for aspiring agriculturalists, small-scale market gardeners, and backyard growers looking to optimize their setups and build community connections.
Key Concepts
- Support Systems Beyond Field Labor: Farmers often face a deficit in administrative, organizational, and logistics support rather than just manual labor. Non-farmers passionate about food systems can provide immense value through specialized tasks like grant writing, bookkeeping, and managing farmers' markets.
- Aggregating and Food Hub Models: Decentralized distribution networks, like food hubs, bridge the gap between farmers and buyers. This model allows growers to focus on production while third-party partners handle marketing, chef relations, and deliveries, streamlining the path from farm to table.
- The Behavior of Grass Under Tarps: Persistent rhizome-based grasses covered by tarps lose their chlorophyll, turning white/pale. However, once exposed to sunlight, these "solar panels" quickly recharge the root systems, meaning tarps alone do not always fully eradicate the grass.
- Thermodynamic Benefits of Ridge Vents: Ridge vents dramatically improve high tunnel environments by allowing trapped hot air and fungal spores to escape through the roof. This keeps the growing space significantly cooler (closer to a shade house) and reduces blossom drop and disease pressure in summer crops like tomatoes.
Quotes
- At 2:24 - "We have no interest in being someone's gold rush, where they make their riches selling the tools while we barely scrape by. We need people willing to do this work and support it." - Highlighting the need for mutual support structures in local food systems over exploitative agricultural sales.
- At 9:02 - "The white strands of grasses under a tarp will ultimately turn back to green solar panels, charging the roots. What has almost certainly happened is you have taken care of a lot of weed seeds at the surface." - Explaining the physiological resilience of rhizome-based grasses even after prolonged tarping.
- At 14:21 - "The ridge vent takes it from feeling like a high tunnel to feeling like a shade house... it's letting all of that heat out." - Emphasizing the massive temperature regulation difference a ridge vent makes inside a growing structure.
Takeaways
- Conduct a light tillage and retarp to manage grass: When prepping a new bed with persistent grasses, perform a very shallow tilling (2–3 inches deep) after removing the initial tarp, then retarp the bed until planting. This triggers remaining weed seeds to germinate and die under the tarp, ensuring a cleaner seedbed.
- Opt for high hip boards on shorter tunnels to save on ridge vent costs: If your high tunnel is 50 feet or shorter, you can forgo the expensive ridge vent addition by utilizing high hip boards (shoulder-height roll-up sides) and wide end walls to facilitate cross-ventilation.
- Leverage community waste streams to support farms: Aspiring agricultural advocates can create a viable local business or nonprofit by sourcing wasted regional carbon materials (such as straw, mulch, or wood chips) and offering delivery services directly to no-till farmers.
