Naslov
Estimation of forage value of grasslands of the Dinara Mountains based on geospatial data collection

Autori
Kutnjak, Hrvoje ; Rajčić, Lucija ; Čačić, Ivana ; Leto, Josip

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik sažetaka 58. hrvatskog i 18. međunarodnog simpozija agronoma / Carović-Stanko, Klaudija ; Širić, Ivan - Zagreb : Agronomski fakultet Sveučilišta u Zagrebu, 2023, 205-205

Skup
58. hrvatski i 18. međunarodni simpozij agronoma

Mjesto i datum
Dubrovnik, Hrvatska, 11.02.2023. - 17.02.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
productivity, Nature Park Dinara, karst pastures, ADF/NDF, protein

Sažetak
The grasslands of Dinara Mountains have been traditionally used as pastures during the summer months. After decades of abandonment, livestock production on grasslands started to restore but for optimal grassland management and nature protection on a wide scale, it is essential to have digital data on their productivity and feed value. This study aimed to determine the aboveground plant biomass (AGB) and chemical composition of grasslands at 57 locations on the Dinara Mountains. Between 2020 and 2022, samples of plant material have been collected at different locations of the study area – 26 samples were taken in northern parts near Dinara peak, 23 in areas near Troglav peak, and eight on Kamešnica mountain. On altitudes lower than 600 m 28 grasslands were sampled whereas 29 were sampled on altitudes over 600 m. Crude protein content, neutral detergent fiber (NDF) content, and acid detergent fiber (ADF) content were determined by analytical chemical analysis. AGB varied between 0.3 t/ha and 5.58 t/ha. NDF content varied between 459.34 g/kg DM and 782.8 g/kg DM (average value: 640.3 g/kg DM) and it was observed that it tended to increase during the growing season. ADF content varied between 291.49 g/kg DM and 507.5 g/kg DM (average value: 395.89 g/kg DM). Crude protein content varied from 36.7 to 188.3 g/kg DM Statistical analysis showed that the AGB of higher-altitude grasslands was significantly higher than that of lower-altitude grasslands. NDF content was higher on higher-altitudes of Dinara and Troglav Mountain but not Kamešnica Mountain. Collected geospatial data may be used for the development of a pastoral map for the planning of sustainable grassland resource management on the Dinara Mountains.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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