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The influence of grazing sheep in late autumn on the yield and botanical composition of mountain pastures

, : The influence of grazing sheep in late autumn on the yield and botanical composition of mountain pastures. Rocz Nauk Rolniczych Ser A Roslinna 84(1): 105-124

The objective of this work carried out during 1955-1958 was to investigate the reaction of the vegetation to heavy grazing in the pre-winter period under 3 treatments: no fertilizers, full fertilization, and high N (90 kg N/ha) fertilization. Chemical analyses of the hay were made to establish the effect of late grazing and fertilization on its composition. The grazing of sheep under the conditions studied, with full fertilization resulted in a favorable change in the botanical composition of the vegetative cover. The proportion of the better grasses and the leguminous plants in the stand increased. The grasses were not equally resistant to late grazing. The most resistant was the common bentgrass (Agrostis vulgaris). Its proportion in the vegetative cover increased on the average by 30% during the experimental period. Under the influence of late grazing Festuca rubra was predominant in the stand at the beginning of the experiment and common bentgrass at the end. Late grazing caused an increase in the crude protein, K, and Ca content of the hay. The yield of hay was not significantly affected. The author believes that the additional manuring by the grazing sheep may have stimulated plant growth.


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