Following seeding straw was scattered over the plot surfaces at a rate of 9800 lbs/ac. The hay was then crimped 4 inches deep into the tailing surface with four banks of 18" agricultural disk blades. Lime, broadcasted seed, and hay applications were conducted at night as high winds during the day made these operations difficult.

Once treatments were completed, field borders were constructed with an 80" border disk. No interior borders were constructed. The finished field study size after completion of the borders was 120ft x 200ft (0.55ac). A sprinkler system was installed to provide irrigation and fence was erected around the study area to to inhibit wildlife grazing. Soil samples from the top 6" were collected from each of 24 subdivisions of the field before and after amemdment addition, to determine pre and post amendment nutrient status.

Field was irrigated every 7 to 10 days in the absence of rainfall. Due to limited water availability the amount of water applied was limited to about 25 to 40 % of the estimated ETr. (See record irrigation and precipitation)

In previous seasons we had very little success establishing mesquite and acacia seed. It is believed that high evaporation rates between irrigation intervals resulted in either poor germination or high mortality rates of germinating seed. In an effort to improve the establishment of these plants a single planting line, 160 ft long, in each monoculture strip,was established to test the effectiveness of drip irrigation to establish mesquite and acacia seed as well as greenhouse grown transplants for all four species used. Along each planting line, offset 5 ft from the center of each strip, a gravity fed drip irrigation line was installed. Mesquite and Acacia seed were planted in 30ft sections of each planting line, shortly after establishing the main strips. Seed were sewn 1" deep, at a distance of 2' apart, 2 seeds per hole for a of total 30 seeds per specie per line. Within each Buffalo Grass strip transplanted mesquite, acacia, and quailbush were planted. Within each Quail Bush strip transplanted mesquite, acacia, and buffalo grass were planted. Transplanted mesquite and acacia were be planted within a 33' lenght at a distance of 6 ft apart for a total of 5 each per strip. Transplanted Quailbush and Buffalgrass were planted within a 34' length at a distance of 5 ft apart for a total of 6 each per strip. Each seeded and transplant position were fitted with a single 0.5 gph dripper. the drip irrigaton was controlled using battery operated timer valves. Irrigation in the absence of rain occurred 2 to 3 times per week for 1 hour, to keep germinating seeds, seedlings, and transplants moist between sprinkler irrigation intervals.