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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Sward Characteristics Of A Diploid And Tetraploid Cultivar Of Perennial Ryegrass As Measured By Different Sampling Techniques, J H. Neuteboom, E A. Lantinga, H Schlepers, L 'T Mannetje
Sward Characteristics Of A Diploid And Tetraploid Cultivar Of Perennial Ryegrass As Measured By Different Sampling Techniques, J H. Neuteboom, E A. Lantinga, H Schlepers, L 'T Mannetje
IGC Proceedings (1993-2023)
In a grazing experiment with monocultures of 2 perennial ryegrass (Lolium perenne L.) cultivars it was found that over a 6-year period the tiller density of the tetraploid Condesa was on average 27% lower than that of the diploid Wendy. The lower tiller density of Condesa went along with a more open sward structure and higher weed proportions after 6 years, Sward structure was suitably characterised by means of absence frequency estimations of rooted perennial ryegrass tillers from concentric sampling quadrats.
Defoliation Frequency And Intensity Of Arrhenathherum Elatius, G H. D'Angelo, E B. Postulka, L Ferrari
Defoliation Frequency And Intensity Of Arrhenathherum Elatius, G H. D'Angelo, E B. Postulka, L Ferrari
IGC Proceedings (1993-2023)
This experiment was conducted with the aim of studying whether the frequency and intensity of defoliation of the temperate grass fromental (Arrhenatherum elatius (L.) Presl.) affected its total dry matter (DM)/ha yield as well as the seasonal distribution of forage. Plots were seeded in 1988 and data collected from 1989 to 1991. Two frequencies and two intensities of defoliation were combined in a two factor randomized complete block design with six replications. Treatment plots were cut each year from early autumn to late spring. ANVA, Tukey and Dunnett tests were applied to find out differences between treatments and between …
Alternative Perennial Legumes On Acid Soils In Southern New South Wales, Australia, Guangdi Li, Richard C. Hayes, B. S. Dear
Alternative Perennial Legumes On Acid Soils In Southern New South Wales, Australia, Guangdi Li, Richard C. Hayes, B. S. Dear
IGC Proceedings (1993-2023)
No abstract provided.
Defoliation Impact On The Above And Belowground Productivity Of Festuca Arundinaceae Schreb, Hennie A. Snyman, P. J. Malan
Defoliation Impact On The Above And Belowground Productivity Of Festuca Arundinaceae Schreb, Hennie A. Snyman, P. J. Malan
IGC Proceedings (1993-2023)
The main objective of pasture management is to maximize plant productivity and ensure sustainable animal performance, without inducing pasture deterioration. Many researchers indicated that plant survival and sustainable production is a function of seedbed preparation, irrigation and defoliation, with defoliation having the largest impact on plant persistence (Fulkerson and Donaghy, 2001). The net effect of defoliation (degree of intensity and frequency) can therefore either be beneficial or detrimental to survival and productivity of a pasture. The aim of this study was to quantify the impact of different intensities and frequencies of defoliation on above- and belowground phytomass production of the …
Effect Of Supplementation Frequency On Forage Utilization By Heifers Grazing A Tropical Pasture During The Dry Season, José Augusto Imaz, D. Dos Santos, O. Hernández, A. Radrizzani, J. I. Arroquy
Effect Of Supplementation Frequency On Forage Utilization By Heifers Grazing A Tropical Pasture During The Dry Season, José Augusto Imaz, D. Dos Santos, O. Hernández, A. Radrizzani, J. I. Arroquy
IGC Proceedings (1993-2023)
In tropical pasture, low quality and availability forage during the dry season can limit the cattle intake. Energetic and protein supplementation is a viable practice to improve feed intake and animal performance. Previous studies have shown that infrequent protein supplementation decreases feeding cost achieving similar performance compared with every day supplementation (Farmer et al., 2004). Even though infrequent protein supplementation has been widely studied, little research has been carried out on infrequent energetic supplementation, especially its effect on pasture utilization. Some evidence indicates that negative effects on forage use at low levels of infrequent supplementation (Beaty et al., 1994). …
Effect Of Enclosure On Botanical Composition, Forage Biomass And Other Range Productivity Parameters In A Semi-Arid Area Of El-Khuwei Locality, North Kordofan State, Sudan, Mohammed Abdelkreim, Babo Fadlalla
Effect Of Enclosure On Botanical Composition, Forage Biomass And Other Range Productivity Parameters In A Semi-Arid Area Of El-Khuwei Locality, North Kordofan State, Sudan, Mohammed Abdelkreim, Babo Fadlalla
IGC Proceedings (1993-2023)
Animal production in North Kordofan State is mainly traditional depending on natural rangeland (Cook and Fadlalla 1987), (DHP, 1998). The State has an area of about 25 million ha of which 14.5 million ha is rangeland (Africover 2004). It is among the leading Sudanese States in animal and range resources. It contains more than 13 million heads of sheep, goats, camels and cattle (IFAD 2011). This paper deals with the effect of enclosure and stage of maturity on botanical composition, forage biomass production and other range productivity parameters in this semi-arid area.