Deterioration of clipped caged areas in permanent pastures
1945
Brown, B.A. | Munsell, R.I.
In each of three differently fertilized, grazed permanent pastures, caged areas, clipped with grass shears for 11 years, had decidedly less grass, many more weeds, much more bare ground, and consistently smaller yields, including the weeds, than nearby areas caged for only 1 year. Except for K, there were no important differences between the chemical analyses of the vegetation from the fixed and moved cages. The 10-year average difference in total yields between continuously caged, clipped areas and those caged and clipped for only one season was greatest (61%) on the unfertilized pasture, medium (33%) under LPK fertilization, and least (16%) where, in addition to LPK, a liberal amount of N was applied annually in April. For the differently fertilized pastures, the average grazed yields varied from 71 to 119% of the yields from the fixed cages and from 58 to 74% of the yields from the moved cages. Although the yields of the fixed cages were closer to the grazed yields than those from the moved cages, the markedly greater prevalence of weeds under continuous clipping throws much doubt on the applicability of that method as a substitute for grazing in measuring the production of pastures.
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