Annual Ryegrass Seed Production Fertility and Plant Growth Regulator
Objective/Rationale: To determine the optimal N fertilizer rate(s), in combination with PGR (Plant Growth Regulator) usage, in Annual Ryegrass for seed production.
Methodology: This small plot research trial was conducted using a Randomized Complete Block Design with 4 replicates. Each plot was 2m wide by 7m long with borders on the ends of each replicate. Treatments were set up in a 2 by 4 factorial structure for a combined 8 treatments (Table 1). The first factor was PGR application as Manipulator vs. untreated. The second factor was nitrogen rates of 0, 50, 100, and 125 kg N/ha.