Shade Trial Summary 2008

Shade Trial – Area 4
Seeded Spring 2003

Introduction:

2008 Evaluation of Proxy, Primo, & Trimmit Growth Regulators Applied to Providence Creeping Bentgrass Putting Green for Phytotoxicity and Turf Quality

2008 Evaluation of Proxy, Primo, & Trimmit Growth Regulators Applied to  Provide

Final Report, June 29, 2009

Objective

The primary objective of this trial was to determine whether repeated applications (2, 3, or 4) of Proxy (ethephon) or Proxy + Primo (trinexpac-ethyl) caused phytotoxicity to ‘Providence’ creeping bentgrass maintained at putting green height. A secondary objective was to evaluate turf quality of putting green turf treated with Proxy, Proxy + Primo, or Trimmit (paclobutrazol) growth regulators.

Materials and Methods

Fertilizing Lawns

Fertilizing Lawns

Explains how to optimize a fertilization program for a home lawn. Discusses how to select and use fertilizers, the roles of various elements (nitrogen, phosphorus, potassium, sulfur, pH, calcium, magnesium, and iron) in lawn fertilization, and the value of soil tests for each element. Provides sample calendars of necessary and optimal times for fertilizer applications for western, central, and eastern Oregon.

Pages