Seasonal Herbage Accumulation Of Different Dairy Pasture Types In Southern Australia,
2023
University of Melbourne, Australia
Seasonal Herbage Accumulation Of Different Dairy Pasture Types In Southern Australia, J. Tharmaraj, D. F. Chapman, Z. N. Nie
IGC Proceedings (1977-2023)
Perennial ryegrass pastures, which are the mainstay of dairy feeding systems in southern Australia, are characterised by strong spring growth, little summer/autumn growth, and poor persistence. These limitations impose costs to farm businesses through the purchase of additional fodder to fill feed gaps, and regular re-sowing of pastures. The objective of the research reported here was to investigate the potential for alternative pasture types with different seasonal growth characteristics to improve the seasonal distribution of feed supply and overcome some of the limitations associated with perennial ryegrass.
Seasonality Of Forage Production Of Coastcross-1 With Different Sources And Applications Of Phosphorus,
2023
Universidade Federal de Lavras, Brazil
Seasonality Of Forage Production Of Coastcross-1 With Different Sources And Applications Of Phosphorus, José C. Pinto, Í. P. A. Santos, A. E. Furtini Neto, A. R. Morais, E. E. Mesquita, D. J. G. Faria, I. F. Andrade
IGC Proceedings (1977-2023)
Brazil presents high potential for meat production from pastures. However, the feeding of ruminants depends on the conditions and the climate. Approximately 80% of the annual production of dry matter (DM) occurs in the period October to March (spring - summer). In the autumn and winter production is low associated with high humidity and low temperatures in the south and low rainfall in the tropical north. The situation is exacerbated by inadequate management practices and low soil fertility, particularly low levels of phosphorus (P). The objective of this experiment was to evaluate the seasonality of production of DM of coastcross-1 …
Study On Re-Growth And Nutritional Potentials Of Eleusine Indica L In Chitwan, Nepal,
2023
Nepal Agricultural Research Council, Nepal
Study On Re-Growth And Nutritional Potentials Of Eleusine Indica L In Chitwan, Nepal, P. R. Regmi, Naba R. Devkota, M. Sapkota, M. P. Sharma
IGC Proceedings (1977-2023)
The efforts to use exotic fodder species to solve the problem of green roughage scarcity in Nepal, have had only limited success because the species are not persistent. Use of local forage species, such as Eleusine indica, which is widely adapted and tolerant of repeated cutting (Lowry et al., 1992), could be possible solution to the problem. The objective of this study was to understand the re-growth potential of E. indica with respect to nitrogen fertiliser application and cutting management and to determine its feeding value in the dry season.
Effect Of Seed Rate Of Trifolium Repens In Pasture Overdrilling,
2023
Agricultural University of Poznań, Poland
Effect Of Seed Rate Of Trifolium Repens In Pasture Overdrilling, P. Goliński, S. Kozłowski, B. T. Golińska
IGC Proceedings (1977-2023)
In the region of Wielkopolska, unfavourable climatic conditions, particularly periodical shortage of precipitation, have contributed to a rapid degradation of pastures in dairy farms. In grass-clover mixtures Trifolium repens (Tr) is found to disappear very quickly from the sward. In consequence the DM yield and herbage quality in summer is low. One of the methods of improving of pasture sward and reducing the seasonality of forage production is overdrilling (OD). Many factors affect the success of this undertaking (Sheldrick 2000). This research investigated the response to one easily adjustable factor, that of seed rate (SR).
Tissue Damage And Nutritive Value Of Warm-Season Grasses Following A Freeze,
2023
USDA ARS
Tissue Damage And Nutritive Value Of Warm-Season Grasses Following A Freeze, S. W. Coleman, J. Breman, A. S. Blount, K. H. Quesenberry
IGC Proceedings (1977-2023)
Bahiagrass (Paspalum notatum Flugge) is a major forage for livestock in the subtropics of the U.S.A. However, it is subject to freeze damage with minimal winter regrowth, and is generally considered a poor grass for stockpiling due to poor quality of the residue. Bahiagrass genotypes have been found showing a range of leaf freezing tolerance in the in the field (-30 C) (Blount et al., 2001). Other C4 grasses have been reported to have genotype-specific tolerances to below-freezing temperatures ranging from -3 to -100 C (Sakai & Larcher, 1987). This research was begun to try to understand the …
Soil Compaction In Cropland Pastures Used For Winter Grazing,
2023
University of Illinois
Soil Compaction In Cropland Pastures Used For Winter Grazing, B. F. Tracy
IGC Proceedings (1977-2023)
In the northern United States, forage availability on cool season pastures declines rapidly late in the growing season (Moser & Hoveland 1996). To supplement low forage availability in the fall and winter, producers can graze livestock on cropland pastures containing annual cover crops and crop residues. Managed properly, cropland pastures can provide livestock with abundant, high quality forage that lasts long into winter. A potential issue with cropland pastures is that presence of cattle on moist, non sod-bearing soils could lead to severe soil compaction. The objective of this particular study was to determine how winter grazing on cropland pastures …
The Effects Of Strategic Nitrogen Fertiliser Application During The Cool Season On The Composition Of A Perennial Ryegrass-White Clover Pasture In The Western Cape Province Of South Africa,
2023
University of Stellenbosch, South Africa
The Effects Of Strategic Nitrogen Fertiliser Application During The Cool Season On The Composition Of A Perennial Ryegrass-White Clover Pasture In The Western Cape Province Of South Africa, J. Labuschagne, M. B. Hardy, G. A. Agenbag
IGC Proceedings (1977-2023)
Application of fertiliser N to stimulate DM production of perennial ryegrass-white clover pastures during the cool season can be an important management tool. Application of fertiliser N should however maintain clover contents between 30 and 50 percent (Martin, 1960; Harris, 1994). The aim of the study was to develop a better understanding of the effect of a strategic N fertiliser application during the cool season on the grass-clover balance and to identify possible management guidelines that would maximise dry matter production without suppressing clover content to values lower than required to maintain the benefit of clover in the pasture.
Forage Production And Nitrogen Status In Mixed Fodder Crops,
2023
Istituto Sperimentale Agronomico, Italy
Forage Production And Nitrogen Status In Mixed Fodder Crops, G. Convertini, M. Maiorana, D. Ferri
IGC Proceedings (1977-2023)
In Southern Italy, the lack of rain during the summer period is one of the main factors limiting fodder crop production. Another very important parameter, linked to drought, is N fertilisation. In these conditions, it is necessary to find mixtures of legumes and grasses able to ensure good production and quality in the driest months, and to rationalise N fertilisation through control of the nutritional status of the crops at the beginning of spring. By this approach, it is possible to adjust N application during the cropping cycle. The aim of this research was to evaluate in a hilly area …
The Use Of Multivariate Analysis In Tropical Grass And Legume Seed Production In Cuban Regions,
2023
Instituto de Ciencia Animal, Cuba
The Use Of Multivariate Analysis In Tropical Grass And Legume Seed Production In Cuban Regions, G. Febles, R. Baños, S. Yáñes, V. Torres, T. Ruiz, F. Funes
IGC Proceedings (1977-2023)
Seed production is an important activity in developing countries where pastures are the main source for animal feeding (Febles et al. 2003). Another outstanding aspect is the mathematical analysis used when a large number of species, varieties and ecotypes are used in the same study. The objective of this paper was to examine the use of multivariate analysis in studies on the effects of edaphoclimatic factors on seed production from tropical grasses and legumes.
Dry Matter Production And Nutritive Quality Of Wild Guinea Grass (Panicum Maximum) Grown Along Roadsides In Sri Lanka,
2023
University of Peradeniya, Sri Lanka
Dry Matter Production And Nutritive Quality Of Wild Guinea Grass (Panicum Maximum) Grown Along Roadsides In Sri Lanka, Sujatha Premaratne, G. G. C. Premalal
IGC Proceedings (1977-2023)
Wild Guinea grass (Panicum maximum) was introduced into Sri Lanka in the 1820s for forage purposes and has now naturalised in most ecological zones, ecosystems and habitats including roadsides with the exception of hilly and semi-arid parts of the country. The enormous distribution of the grass throughout the country has contributed much to supplying livestock feeds, soil erosion control, and improvement of soil fertility. The objective of this study was to investigate the growth, dry matter (DM) production and nutritive quality of wild Guinea grass along roadsides in different ecological zones.
The Effect Of Topographic Factors On The Productivity Of Mountain Grasslands In Northwestern Benin,
2023
University of Abomey-Calavi, Benin
The Effect Of Topographic Factors On The Productivity Of Mountain Grasslands In Northwestern Benin, T. H. Avohou, Brice Sinsin
IGC Proceedings (1977-2023)
The Atacora mountains range in northern Benin (660 m altitude) is a special ecosystem in the sudanian zone because of the overriding importance of topographic factors and shallow soils. The vegetation over this mountain range consists of shrub and tree savannas, woodlands and fallows. More and more cattle herds graze on this range. But the functioning of this ecosystem is still unknown like many others in the tropical zone (Sene & Zingari, 2001). This study aims to determine the impact of topography and mountain side exposure on the productivity of the Atacora mountains grasslands in the Atacora mountains.
An Investigation On Ecological Aspects Of Crested And Intermediate Wheat Grasses In Semi-Steppe Vegetation Of Iran,
2023
University of Tarbiyat Moudarres, Iran
An Investigation On Ecological Aspects Of Crested And Intermediate Wheat Grasses In Semi-Steppe Vegetation Of Iran, Masoume Amirkhani, Mansour Mesdaghi
IGC Proceedings (1977-2023)
Crested and intermediate wheat grasses (Agropyron cristatum (L.)Gaertn., Thinopyrum intermedium (H.)Beauv.) are adapted to relatively dry conditions in Iran and have a significant role in providing good forage quality for domestic sheep and wild ungulates in summer rangelands. These grasses occur at altitudes of 1,200 to 1,800 m. A. cristatum is a bunch grass with diverse spikes and medium height (40 cm) and is common on open and exposed knolls, whereas T. intermedium, with height of 115 cm and with long rhizomes, is found in more moist niches in gully bottoms. The objectives of this study were to …
An Eco-Morphological Examination Of Tiller And Stolon Dynamics In A Zoysia Japonica Sward,
2023
Niigata University, Japan
An Eco-Morphological Examination Of Tiller And Stolon Dynamics In A Zoysia Japonica Sward, M. Ito, Y. Ueda, M. Kodama, T. Okajima
IGC Proceedings (1977-2023)
Japanese lawn grass (Zoysia japonica), which dominates in grazed semi-natural grasslands in Japan, is being reconsidered recently, because of its high adaptability to poorer conditions and its aggressive creeping habit in open fields. Zoysia has a unique potential for indeterminate multiple-node generation in the stolon tip and differential tiller formation at two tillering sites of every multiple-node (Ta in the bottom node and Tb in the mid-part), so that it displays contrasting behaviour in stolon extension and aerial tiller production in various situations (Ito et al., 2003). In this study, we examined the population structure of various …
Leaf Appearance And Elongation In Panicum Maximum Cv. Tanzania Tillers Of Varying Ages,
2023
Universidade Federal de Viçosa, Brazil
Leaf Appearance And Elongation In Panicum Maximum Cv. Tanzania Tillers Of Varying Ages, Domicio Nascimento Jr., Rogério T. Barbosa, Valéria P. B. Euclides, S. C. Da Silva, R. A. Torres
IGC Proceedings (1977-2023)
A sward may be considered as a tiller population of varying ages and sizes, and these different age groups are likely to present distinct behaviour in terms of growth and herbage production. However, there is very little information on how tiller age, in association with grazing management practices (e.g. frequency and intensity of grazing), alter morphogenetic characteristics and, therefore, herbage production. Against this background, the present experiment had the objective to evaluate leaf appearance and elongation in Panicum maximum cv. Tanzania tillers of different age groups when submitted to intermittent grazing regimes.
Root Density In Panicum Maximum Cv. Tanzania Monoculture And In A Mixture With Leucaena Leucocephala With Different Densities In Mexico,
2023
Universidad del Zulia, Mexico
Root Density In Panicum Maximum Cv. Tanzania Monoculture And In A Mixture With Leucaena Leucocephala With Different Densities In Mexico, H. J. Delgado Gómez, Luis Ramírez-Avilés, Juan C. Ku-Vera, J. Escamilla Bencomo, P. A. Velázquez Madrazo
IGC Proceedings (1977-2023)
In Yucatan cattle production is limited by forage availability during the dry season. L. leucocephala has good nutritive value (24 - 30% CP) and can stand drought and grazing, therefore its use in mixture with grasses is recommended. However, in association both species could compete for light, water and nutrients. The aim of this study was to assess the effect of introduction of L. leucocephala with different densities on root density of P. maximum.
Comparison Of A Biometric Method With Clipping And Weighing Method For Estimating The Yield Of Artemisia Sieberi (Case Study Zarand-E-Save Region),
2023
Tarbiat Modaress University, Iran
Comparison Of A Biometric Method With Clipping And Weighing Method For Estimating The Yield Of Artemisia Sieberi (Case Study Zarand-E-Save Region), H. Dianati, M. Abedi, E. Shahriary, Hossein Arzani
IGC Proceedings (1977-2023)
Forage production is a most important vegetation attribute in rangeland analysis and evaluation and use in management practices. Artemisia sieberi covered about 47% of the rangeland area in Iran and scientists need to know the best method for analysis and evaluation of this species. Clipping and weighing has high precision, but this method is time-consuming and expensive and alternative methods are required. Russian scientists developed a biometric method based on plant dimensions and suggest this method for rangelands in the Middle East (discussed by Dianati, 2003). In America, Muray (1982) used plant dimensions for yield estimation and regression models for …
The Effect Of Nitrogen Fertilisation On The Morphological Development And Growth Rate Of Star Grass (Cynodon Nlemfuensis),
2023
Agricultural University of Havana, Cuba
The Effect Of Nitrogen Fertilisation On The Morphological Development And Growth Rate Of Star Grass (Cynodon Nlemfuensis), P. P. Del Pozo, R. S. Herrera, A. Hameleers
IGC Proceedings (1977-2023)
Nitrogen is one of the main inputs used in forage production systems to increase productivity. However, in Cuba, the availability of fertiliser N is limited and therefore if applied, needs to be used with high efficiency. Previous studies (Johnson, 2001, Del Pozo, 2003) investigated the effects of N on growth, carbohydrate and protein content but did not consider morphological changes in Cynodon nlemfuensis. A study was therefore undertaken investigating how N application influences morphological development of the plant and how these changes might affect the efficiency of use of applied N.
Brachiaria And Panicum Productivity At Different Sites Within The Brazilian Amazon,
2023
UNESP, Brazil
Brachiaria And Panicum Productivity At Different Sites Within The Brazilian Amazon, F. F. C. Mello, C. E. P. Cerri, C. C. Cerri, C. A. C. Crusciol
IGC Proceedings (1977-2023)
Over the last 25 years more than 70 M ha of native vegetation in Brazil have been replaced by pastures for beef production. The substitution of native vegetation on such a large scale with African grasses (mainly of the genera Brachiaria and Panicum) is likely to have an impact on nutrients and organic matter composition, as well as a regional impact on hydrology and water quality.
Row Spacing And Productivity Of Russian Wild Rye Pastures In Semiarid Environments,
2023
USDA, Agricultural Research Service
Row Spacing And Productivity Of Russian Wild Rye Pastures In Semiarid Environments, J. D. Berdahl, S. L. Kronberg, J. R. Hendrickson, J. F. Karn
IGC Proceedings (1977-2023)
To sustain forage yields in dry years in semiarid climates, row spacings >59cm have been recommended for Russian wild rye [Psathyrostachys juncea (Fisch.) Nevski] (Lawrence & Heinrichs, 1968). However, wide row spacings promote weed invasion, soil erosion, and elevated plant crowns resulting in a rough, "washboard" ground surface (Kilcher, 1961). Jefferson and Kielly (1998) suggested a 30-cm row spacing for optimum sustainable forage yields in Russian wild rye in the semiarid prairie region of Canada. This study aimed to evaluate the relationship between row spacing and productivity of Russian wild rye at two semiarid sites near Mandan, in the …
Production And Non-Production Functions Of Grassland In An Upland Region Of Slovakia,
2023
Grassland and Mountain Agriculture Research Institute, Slovakia
Production And Non-Production Functions Of Grassland In An Upland Region Of Slovakia, J. Cunderlik, L. Gonda, J. Tomaskin
IGC Proceedings (1977-2023)
The importance of grassland lies chiefly in its production of good quality forage that is utilised by cattle and sheep. In upland and mountain regions the non-production functions of grassland such as landscape enhancement or water catchment are especially important. These functions are performed mainly through the sward tillering zone (boundary area between above-ground vegetation and roots) and root characteristics (Jancovic, l985). The objective of this research was to study the biomass above, at, and below ground level of three sward types at different fertilisation levels.
