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Recently, the interest in ensiling corn at low dry matter percentages has grown rap idly due to the development of early maturing hybrids in Canada. Associated with this has been research on the feasibility of harvesting and ensiling corn when less than fully mature for satisfactory livestock feed. Since filling with high-moisture silage may result in excessive pressures on the silo wall, it is also imperative to evaluate the safety and adequacy of the existing storage facilities. However, in North America there are at present no standards available for the structural design of tower silos for silages with less than 30% dry matter content. Thus, the present study was undertaken with the following specific objectives: (a) to determine pressure density relationship for whole-plant corn silage of low dry matter content ensiled in laboratory silos and (b) to use this relationship to predict silo capacities and lateral pressures on the silo wall. In previous papers the results of similar tests on alfalfa haylage (Jofriet et al. 1982), and on whole shelled, ground shelled and ground ear corn (Jofriet and Daynard 1982) were published.
densities, pressures and capacities of corn silage in tower silos
Negi, S. C., Jofriet, J. C. and J. Buchanan-Smith 1984. DENSITIES, PRESSURES AND CAPACITIES OF CORN SILAGE IN TOWER SILOS. Canadian Agricultural Engineering 26(1):43-48.
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