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12/9/2019 ESD Printable Report <br /> Total annual production,during an average year,ranges from 50 to 400 pounds per acre air-dry weight and will average 200 pounds. <br /> Plant Growth Curve <br /> Growth curve number.• C06904 <br /> Growth curve name: Warn season dominant;MLRA-69;upland fine textured soils. <br /> Growth curve description: <br /> Percent Production by Month <br /> Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec <br /> 0 0 0 0 15 45 25 15 0 0 0 0 <br /> f3 G—th Curve <br /> P <br /> r 91 <br /> 0 <br /> a <br /> u <br /> C 13 <br /> t <br /> i .3 <br /> 0 9 <br /> ill r + <br /> t M., M< 3y Ja D-1 P.fYi >m nr_ <br /> Increased Bare Ground Community <br /> kin r excessive defoliation such as occupation b <br />� This plant community develops with long-term heavy continuous grazing with overstocking and/or a cess d p y <br /> prairie dogs.Red threeawn,curlycup gumweed and annual plants such as sixweeks fescue,cheatgrass and Russian thistle have increased <br /> and/or invaded.Blue grama may persist in localized areas.Introduced species such as field bindweed can also be present,especially on <br /> prairie dog towns. <br /> This community lacks stability,diversity and productivity.Litter levels are extremely low.Due to the increased bare ground erosion is evident <br /> where flow paths are continuous.Rills may occur on steeper slopes.The nutrient cycle,water cycle and overall energy flow are greatly <br /> impaired.Organic matter/carbon reserves are greatly reduced.Desertification is advanced. <br /> Total annual production can vary from 50 to 150 pounds of air-dry vegetation per acre. <br /> Plant Growth Curve <br /> Growth curve number. C06904 <br /> Growth curve name: Warm season dominant;MLRA-69;upland fine textured soils. <br /> Growth curve description: <br /> Percent Production by Month <br /> Jan Feb Mar A2r may JISL JlJZ Aug S&P QSct Nov D= <br /> 0 0 0 0 15 45 25 15 0 0. 0 0 <br /> �' Oro.rtn tune <br /> % to <br /> P <br /> f 31 <br /> 0 7y <br /> d <br /> u <br /> c $ <br /> t <br /> i <br /> o y <br /> n 4 <br /> -ft M. nu Qj, T�r. 11 <br /> Go-back Community <br /> Go-back land is created when the soil is tilled or farmed(sodbusted)and abandoned.All of the native plants are destroyed,soil organic mater <br /> is reduced,soil structure is changed and a compacted layer(plow pan)is formed.Residual synthetic chemicals may remain from past farming <br /> operations and erosion processes are active.Erosion is a major concern. <br /> Go-back land succeeds through several plant communities beginning with an early annual plant community,which initiates the revegetation <br /> process.Plants such as Russian thistle,kochia and other annuals begin to establish.These plants give some protection from erosion and <br /> start to build minor levels of soil organic matter.This early annual plant community lasts for two to several years.Red threeawn,sand <br /> dropseed and several other early perennials can dominate the plant community for five to eight years or more.Eventually western <br /> wheatgrass,blue grama and other natives can become reestablished.Prescribed grazing can accelerate the successional process. <br /> hftps://esis.sc.egov.usda.gov/ESDReponftReportPrt.aspx?id=R069XY042CO&rptLevel=all&approved=yes&repType=regular&scros=&comm= 7/16 <br />