Question (4) (7 marks) Current nitrogen fertilization recommendations for wheat included applications of specified amounts at specified stages of plant growth. Nitrogen status was monitored through a stem tissue analysis. A researcher was interested in evaluating the effect of several different fertilization timing schedules on the stem tissue nitrate amounts and wheat production. Treatments 1 Blocks NContent 35.97 2 41.88 3 43.06 4 38.17 S 38.98 6 1 35.88 1 2 42.21 2 2 47.68 3 2 50.41 4 2 46.84 2 42.98 6 2 51.14 1 3 37.93 2 3 47.64 3 3 53.67 4 3 41.22 5 3 38.60 6 3 45.56 1 4 40.96 2 4 42.89 3. 4 43.90 4 4 40.19 5 4 41.44 6 4 44.28