Research Protocols

See the methods and experimental designs cooperators are using to conduct research to answer their most challenging questions on their farms.

Results of these research projects are analyzed and summarized in Research reports.

Title Date Member Priorities People Description Tags
Worm Castings for Cabbage Production 07/07/15 HRD Objective: Determine if applying worm castings to cabbage has any effect on cabbage yield. ·
Enterprise Budgets: Cucumbers 07/07/15 HRD · · Objectives: 1. Determine differences in enterprise budgets for cucumbers at three farms (two in structures, one outside). 2. Determine differences in labor efficiency for various tasks.
Compost Extract Crop Yield Response, Year 2 07/07/15 HRD · · 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. · · ·
Oat Cover Crop in Garlic 07/07/15 CCHRD Objectives: 1. Determine if planting oats as a winterkill mulch impacts overwintered garlic yield. 2. Determine if an earlier planting date (so that oats and garlic can be sown together with significant growth on the oats before winterkill) impacts overwintered garlic yield. 3. Evaluate percent cover, biomass, and weed suppression of oat cover crop planted with garlic in September. ·
Summer Squash follow Winter Rye 07/07/15 HRD Objectives: Determine the effect on summer squash yield from terminating a cereal rye cover crop by either mowing then tilling prior to planting squash or delaying mowing rye to a later stage prior to planting squash. ·
Quick Turnaround Cover Crops 07/07/15 CCHRD Objectives: 1. Evaluate performance of cover crop species and mixes as quick-turnaround covers in the field and the high tunnel (% cover, weed suppression, biomass). 2. Determine if quick-turnaround cover crops affect yield of the following cash crop. ·
Living Mulch in Peppers, Broccoli and Cucumbers 07/07/15 CCHRD Objectives for Peppers: 1. Determine if whole season, low growing white clover in the pathways next to pepper plants will impact the yield of peppers. 2. Evaluate the biomass, weed suppression, and percent cover of the clover in the pathways next to peppers. Objective for Broccoli: 1. Evaluate the performance (percent cover, biomass, weed suppression) of three late season cover crops in the understory of broccoli plants. Objectives for Cucumbers: 1. Determine if living cover in the sprawl zone of cucumbers impacts the labor time required for harvest. 2. Determine if living cover in the sprawl zone of cucumbers keeps fruits cleaner after rain. 3. Determine if cucumber plants prefer to vine toward living cover in the sprawl zone, or away from it. 4. Determine if living cover in the sprawl zone impacts yield.
Pasture Monitoring, Spring – Summer 2015 … 07/07/15 LRD Objective: To experiment with seeding different forages into existing pastures and monitor performance of livestock, forage and the soil.
Alternative Free Choice Minerals for Goats, … 07/07/15 LRD Objective: To determine if there are quantifiable health benefits in goats provided free choice minerals and kelp versus standard mineral blocks. ·
Don’t Farm Naked: Integration of Ruminant … 07/07/15 CCLRD Objective: To increase the number of ruminant livestock producers using cover crops as a feed course while improving water quality. · ·
Grazing Cover Crops for Winter Feed 07/07/15 CCLRD Objective: Continue tracking winter hay requirements and forage provided by cover crops to determine how much winter feed can be offset by grazing cover crops in the fall and spring. Feed cost savings will be calculated & animal gain and performance will be monitored. ·
Grazing Cover Crops 07/07/15 CCLRD Objective: Demonstrate the economic and soil health benefits of grazing multi-species cover crops, through partnerships between row crops farmers and graziers. · ·
Winter wheat companion seeding for in-furrow … 07/07/15 CCFCRD Objective: Quantify the agronomic performance of, and weed control in, soybeans receiving a companion seeding of winter wheat in the seed furrow. ·
Soybeans Into Standing Rye Cover Crop 07/07/15 CCFCRD · Objective: Quantify the agronomic performance of soybeans planted into an early and late terminated cereal rye cover crop. · ·
Cover crop mixes seeded into corn at the V3-V6 … 07/07/15 CCFCRD · · Objective: Quantify the persistence and biomass production of cover crop mixes that are seeded into corn early in the growing season (approx. V3-V6 stage). ·
Anhydrous ammonia applied to cover and … 07/07/15 CCFCRD Objective: Quantify the agronomic and economic performance of corn following anhydrous ammonia that is applied to cover crop and no-cover crop and with or without N-Serve. · · ·
Effect on corn of green manure cover crops … 07/07/15 CCFCRD Objective: Quantify the agronomic and economic effect on corn yields of seeding a red + sweet clover mix with cereal rye or planting a diverse, cover crop mix immediately after grain and straw harvest of rye. · · ·
Cereal rye cover crop seeded into corn at time … 07/06/15 CCFCRD · Objective: Quantify the persistence and biomass production of a cereal rye cover crop that is seeded into standing corn at the same time as side-dressing nitrogen fertilizer (early June). · · ·
Cereal rye seeded into seed corn … 07/06/15 CCFCRD Objectives: 1) Determine the performance of a cereal rye cover crop aerially seeded into seed corn at two dates prior to harvest and drilled directly following harvest. 2) Determine the agronomic and economic performance of soybeans in rotation following two cover crop termination dates. ·
Demonstration of N-Watch™ Program on Two Crop … 07/06/15 CCFCRD Objective: Document the availability and movement of soil nitrogen using the N-Watch™ soil sampling program in two crop fields—one with a history of cover crop use and one with no history of cover crop use. · ·
Accommodating Cover Crops With Short-Season … 07/06/15 CCFCRD Objective: Determine if cover crops can be more successfully established following a corn and soybean varieties that mature and are harvested earlier than what would normally be planted at a location. Quantify the agronomic and economic performance of short- and normal-season corn and soybeans planted in succession. (Short-season corn is in rotation with short-season soybeans, and vice versa.) · ·
Three Crop Rotation Demonstration 07/06/15 FCRD Objective: Document all pertinent production and cost information with respect to growing a crop rotation consisting of corn-soybean-winter wheat + legume. · · · ·
Red clover vs. Cover crop mix before corn 07/06/15 CCFCRD Objective: Quantify the agronomic and economic effect on corn yields of frost-seeding red clover with winter cereal rye or planting a diverse, cover crop mix immediately after grain and straw harvest of rye. · ·
Pepper Variety Trial 07/05/15 HRD · · · · · Objectives: 1. Determine which pepper variety, Olympus or Revolution, produces more marketable fruits and total yield in side-by-side field trials in Iowa.
Mulch and Foliar Feed Trial in Butternut Squash … 07/05/15 HRD Objectives: 1. Determine if yields of butternut squash and tomatoes are different between plots using plastic mulch and corn stalk mulch. 2. Determine if yields of butternut squash and tomatoes are different between plots using foliar feeding and not using foliar feeding. · · ·
Whole Farm Financial Project 07/05/15 HRD Objectives: 1. Report whole farm financial data from fruit and vegetable farms to provide baseline/comparison data for other farmers. · ·
Grazing Cover Crops 07/05/15 CCLRD · Objective: Demonstrate the economic and soil health benefits of grazing multi-species cover crops, through partnerships between row crops farmers and graziers. ·
Apple Cider Vinegar Supplementation in Feeder … 07/05/15 LRD Objective: Does supplementing pigs with apple cider vinegar (ACV) provide health benefits that contribute to better rate of gain? Anecdotal evidence suggests improved health, and we’re looking for quantifiable benefits. · · · ·
Improving Cool-Season Pastures with … 07/05/15 LRD Objective: To experiment with seeding multi-species forages into existing pastures and monitor performance of livestock, forage and the soil. · · ·
Neonicotinoid-treated vs. neonicotinoid-free … 07/05/15 CCFCRD Objective: Quantify the agronomic and economic performance of soybeans grown from neonicotinoid-treated and neonicotinoid-free seeds of the same variety following a cereal rye cover crop. · ·
Semi-dwarf vs. Conventional Soybeans 07/05/15 CCFCRD Objective: Quantify the agronomic and economic performance of semi-dwarf and conventional soybeans. ·
Tile water monitoring 07/05/15 FCRD Objective: To monitor the tile water coming from multiple fields under multiple forms of management across the state of Iowa in 2015. · ·