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~. • 5 • <br />Progress to Date <br /> The test plot was constructed in the fall of 1976 on a level, <br /> evenly graded waste dump created for the study. The subplots are <br />1 <br />J arranged in a randomized block design of seven treatments. There are <br /> three replications of each treatment. The subplots measure 12 feet by <br /> 25 feet (Figure 1). The treatments being studied are listed below: <br /> Treatment 1: Absolute control--no fertilizer, no mulch <br /> Treatment 2: Control <br /> O <br /># <br />0 <br /> /a <br />Treatment 3: 60# N/a, 200# PZ <br />s/a, 60 <br />K2 <br /> Treatment 4: 60# N/a, 200# PZOs/a, 60# K20/a, excelsior mulch <br /> Treatment 5: 120# N/a, 200# PZOs/a, 60# K~0/a <br /> Treatment 6: 120# N/a, 200# PZOs/a, 60# Kz0/a, excelsior mulch <br /> Treatment 7: Manure 50 tons/a, 200# PZOs/a, 60# K~0/a <br /> <br /> A uniform application of the designated fertilizers was broadcast <br /> over each subplot, except Treatment 1 (absolute control), on October 10- <br /> 12, 1976. After the treatments were surface applied, they were worked <br /> <br /> into the soil by rototilling, Phosphorus, in the form of triple super- <br /> phosphate, provided the phosphorus. Muriate of potash was the source of <br />I potassium in the treatments. Nitrogen was added in split applications as <br /> ammonium nitrate. One-half was applied in December 1976 and the remain- <br /> der in June 1977. Manure was spread in October 1976. <br /> <br /> The subplots were broadcast seeded with a mixture of grasses, fortis, <br /> and shrubs on December 17, 1976 (Table 2). Late fall seeding was per- <br /> formed in order to better utilize the winter and spring precipitation for <br /> germination and emergence. Seed was applied at a rate of 11.5 pounds of <br /> pure live seed per acre (59 PLS per ftz) and raked lightly to cover <br /> seed. Subplots to be mulched were then covered with excelsior matting. <br /> <br />