PACE Turf - Turfgrass Information Center

Super Journal Mission

Super Journal Mission: The Super Journal is an on–line turfgrass research publication provided as a public service by PACE Turf. It's mission is to share practical research conducted by turfgrass managers at their sites, turfgrass researchers and students. All published materials are reviewed by Larry Stowell, Ph.D. and Wendy Gelernter, Ph.D. prior to publication.

Please refer to the Super Journal submission guidelines if you wish to have your report published in Super Journal, and our research guide for information on designing and implementing your own turf research project. Please contact us with any further questions or feedback. We look forward to your participation!

Evaluation of Manure Ash Fertilizer Formulations to Provide Nitrogen

Summary: Three manure ash products were formulated for use at golf courses to supply potassium and nitrogen. Product 1 (P1) is a potassium (K) source primarily using ash. Product 2 (P2) is a K and nitrogen (N) source using ash and urea. Product 4 (P4) is a potassium and nitrogen source using ash and blood meal. Eco Soil Systems 0-2-34 was used as a commercial product comparison.

Each product was applied to a golf course approach area to determine efficacy in delivering potassium and nitrogen to the turfgrass. Turfgrass tissues collected from P2 treated areas reported significantly higher K and N levels than the other treatments. All three products increased tissue potassium levels compared to the non-treated check plots two weeks after treatment (WAT). None of the products provided significant increases in tissue K or N at the 4 or 6 WAT evaluations. In addition, none of the products significantly increased soil K levels. Product 2 performed significantly better than the commercial standard (Eco Soil Systems 0-2-34) based upon 2 WAT tissue evaluations. Products 1 and 4 were equivalent to the commercial standard for K and N tissue levels but both products exceeded the commercial standard in clipping weight at 2 WAT. Based upon these results and the discussion below, all three products are suitable for use as potassium sources and the nitrogen containing products 2 and 4 improved turfgrass color.

Printable version of full report

Principal Investigator: Larry Stowell

Cooperators: Eric Lover and Tony Miller, Dove Canyon Country Club

Sponsor: New Charleston Power, El Centro, CA

Research Guide

New products, new ideas, new pests and problems and new controversies abound in the world of turfgrass management. Combined with the currently registered pesticides, fertilizers, amendments, and various new pieces of cultivation equipment and turfgrass management approaches, the task of selecting the correct blend of products and practices can sometimes be daunting. The only way to gain more confidence that a management system is the best one for your site is to start a testing program at your golf course, as outlined in this guide. Part I of this Research Guide, "Getting Started", will describe the basic elements of testing program, attitude, components of an experiment, record keeping; Part II, "Experiment Design", will provide expanded details on how to set up experiments that will be simple and efficient, plot design, replication and randomization techniques will be discused; Part III, "Interpreting Results", will provide a background on how to evaluate your findings and how to decipher scientific publications with an introduction to basic statistics.

Printable version of full report (305 kb pdf)

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