. Effects of different systems and intensities of grazing upon the native vegetation at the Northern Great Plains Field Station. Grazing; Forage plants; Agricultural systems. EFFECTS OF DIFFERENT SYSTEMS OF GRAZJNG. 0 during 1918 and 1919. The grazing starts each season, so that a divi- sion which for two years has been deferred until the fall before graz- ing is not grazed first but sec- ond. This is done to allow any seedlings that might start from the second year's seeding a chance to become more firmly established before the division is grazed. This is the reason that the cycle as outlined
. Effects of different systems and intensities of grazing upon the native vegetation at the Northern Great Plains Field Station. Grazing; Forage plants; Agricultural systems. EFFECTS OF DIFFERENT SYSTEMS OF GRAZJNG. 0 during 1918 and 1919. The grazing starts each season, so that a divi- sion which for two years has been deferred until the fall before graz- ing is not grazed first but sec- ond. This is done to allow any seedlings that might start from the second year's seeding a chance to become more firmly established before the division is grazed. This is the reason that the cycle as outlined in Figure 2, section 1, is not ready to repeat directly in 1924. The details of the system of deferred and rotation graz- ing are more fully discussed in other publications of the United States Department of The grazing periods at Mandan have been as follows: Spring, from May 15 or June 1 to July 1 or July 15; sum- mer, July 1 or July 15 to September 1 or September 15; fall, from September 1 or September 15 to October 15 or November 1. These peri- ods of grazing fit the require- ments of the vegetation in a very satisfactory manner. In the spring the vegetation has made a good growth by May 15 or June 1 and makes rapid growth during the grazing period, so that the cattle ob- tain plenty of feed. In the » summer period there is still some growth taking place, and a few species have ma- tured. By the time the fall period is reached all the valu- able species in the division unpasturecl to this time have matured their seeds and are ready for harvest. The three Artemisias, however, have not matured their seeds by this time, but these plants are weeds, and their propagation is undesirable. During the years the rotation pasture has. Fig. 2.—Diagram showing the order of grazing the three divisions of the deferred and rota- tion pasture for a complete cycle and the first season of the next. Columns A, B, and C represent the three divisions of the pas- ture. Each year
Size: 1040px × 2403px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectforagep, bookyear1923
