Tag: lettuce

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Fruit and vegetable farmers are exploring on-farm compost methods to lower their input costs, increase soil microbial diversity, manage waste and improve yields. Following up on a 2014 PFI study with Jason Jones and Siobhan Danreis,  Rob Faux (Bremer County) and Siobhan (Pocohontas County) held on-farm trials investigating the effect of compost extract on yield […]

July 7, 2016 

BLOG POST

In a Nutshell
• Compost extract is made by steeping
compost in water, then applying the
sieved water (with compost extract)
as a soil drench with the intention
to increase beneficial soil biota, and
increased plant health, Brix and yield.
• At two farms, compost extract was
applied as a drench treatment to head
lettuce.
• Yield and Brix readings of head lettuce
was measured to determine impact of
compost extract applications.
Key Findings
• Drenching soil with compost extract
did not affect lettuce yield at either
farm.
• Drenching soil with compost extract
did not affect Brix levels in lettuce at
Danreis’ farm.
• Compost price could be cost prohibitive;
at high-intensity application,
compost cost was $1.25/row-ft.

July 6, 2016 

RESEARCH REPORT

Objectives: 1. Determine if bi-weekly soil drench applications of compost extract affects yield of lettuce and/or carrot. 2. Determine if bi-weekly soil drench applications of compost extract affects deg. Brix of lettuce and/or carrot. 3. Inform best practices for storing compost, steeping extract, and applying extract drench to soil.

July 7, 2015 

RESEARCH PROTOCOL

Subsoil Heat in a Greenhouse Project timeline: March – December 2009 Published: February 7, 2010 Download PDF (446 kB) View Fullscreen

February 7, 2010 

RESEARCH REPORT

Season Extension in a Wood-Heated Structure Project timeline: January – July 2009 Published: February 5, 2010 Download PDF (78 kB) View Fullscreen

February 5, 2010 

RESEARCH REPORT