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![]() | Nº.40. Application of forest inventories by sampling in the masses of P. Silvestris of the Central Cordillera. Publication year: 1969 Language: Spanish Continuing in the line of work started by the Forest Management Section of the l.F.I.E.in 1959, the application of the inventories by statistical sampling has continued, now in the P. Silvestris mount... Free eBook |
![]() | Nº.69. Maximum admissible slope on farmland and calculation of intermittent terraces with drainage for soil conservation. Publication year: 1954 Language: Spanish Since the Hydrological-Forestry Service was created in 1901 as a consequence of a much earlier state of opinion, the multiple problems posed by erosion, mainly that produced by the water action on slo... Free eBook |
![]() | Nº.05. Forest tractors. Fundamental differences with agricultural tractors. Publication year: 1968 Language: Spanish The forestry tractor as a vehicle designed and designed to move in the mountains, must be fundamentally an all-terrain device. Due to the nature of its work, it will generally evolve on soils of very ... Free eBook |
![]() | H.T. Nº 11. Comparative study of improved varieties of Lolium multiflorum Variety Westerwoldicum Publication year: 1976 Language: Spanish Carrying out tests with Lolium multiflorum Westerwoldicum variety. in order to mitigate the marked impact that feeding and handling factors have on the total cost of production. Works carried out dur... Free eBook |