Refinar búsqueda
Resultados 1-2 de 2
The helminths of ranch calves in the North-eastern mountain grassland of South Africa
1999
Louw, J.P. (Pretoria Univ., Onderstepoort (South Africa). Onderstepoort Veterinary Academic Research Unit)
Управление пастбищами и сенокосами культурных ландшафтов сельских агломераций Белорусского Поозерья
2009
Piletskij, I.V., Vitebsk State Academy of Veterinary Medicine (Belarus)
Realized in the conditions of the Republic of Belarus studies showed that management of cultural landscapes should be based on the models which make it possible to present a proper evaluation of yielding capacity of different types of agricultural lands taking into consideration land quality and influence of natural and climatic factors. Dynamics of yielding capacity of green mass and application of mineral fertilizers at the natural and improved haylands of Belarusian Poozerye region was analyzed. There was noted a determinate variation of grass yields at pasture lands and plowing lands in various years. The presented mopdels made it possible to calculate the average yielding capacity of grasses cultivated at pasture lands and plowing lands in any year, as well as to forecast the extent of risk of yield capacity taking into account yield variability in different years. It was proposed to plan the production volumes of fodders for animal husbandry branch taking into account the variability of yielding capacity at various years under the influence of various unregulated natural and climatic conditions
Mostrar más [+] Menos [-]