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Articles 991 - 1020 of 9404
Full-Text Articles in Entire DC Network
Seed Quality Of Five Native Grasses Of The Humid Argentine Pampa Prairie: Germination Conditions, L Ferrari, C A. Rossi
Seed Quality Of Five Native Grasses Of The Humid Argentine Pampa Prairie: Germination Conditions, L Ferrari, C A. Rossi
IGC Proceedings (1977-2023)
The aim of this study was to determine the germination conditions as well as an approach to seed quality of five native grasses of the humid Argentine Pampa prairie: Bothriochloa laguroides, Sporobolus indicus, Glyceria multiflora, Briza subaristata and Chaetotropis imberbis. They are considered as good and very good forage species. Mature inflorescences were sampled in Brandsen (Flooding Pampa sub-Region, Buenos Aires province, Argentina) from December, 1994 to March, 1995. A three factor completely randomized design with 4 replications was applied. Treatments combined prechilling (I: yes/II:no), KNO3 (A:yes/ B:no) and germination temperatures: 2 constant 15° and 20°C and 6 alternating 15-10°C, …
Evaluation Of Morphological, Biological And Chemical Properties For Breeding On New Fodder-Grass Cultivars, S Kozlowski, B Golinska, P Golinski
Evaluation Of Morphological, Biological And Chemical Properties For Breeding On New Fodder-Grass Cultivars, S Kozlowski, B Golinska, P Golinski
IGC Proceedings (1977-2023)
Our work is an attempt to emphasize the importance of grass morphological, biological and chemical properties in the process of development of new forage cultivars. Results of our investigations indicate that there are realistic possibilities of developing grass cultivars with improved nutritive properties. However, breeding works can only be effective if a wide range of different properties can be taken into consideration and if, simultaneously, mutual correlations occurring between them are also considered. High mutability of properties revealed by lower taxonomic units of the species observed in Poland indicates that they can constitute a valuable material for breeding work on …
Manitoba’S Forage/Livestock Technology Transfer System, A F. Stewart, K H. Ominski
Manitoba’S Forage/Livestock Technology Transfer System, A F. Stewart, K H. Ominski
IGC Proceedings (1977-2023)
There have been significant advances in forage/livestock technology systems in Western Canada in the past fifty years, including the introduction of new forage species and varieties, as well as new advances in harvesting, storage and cattle production systems. Adoption of new technology in Manitoba has been expedited by an extension system that involves all sectors of the agricultural community from primary producers and researchers to extension personnel and members of the agribusiness community all of whom are working together to find solutions to the local and regional challenges facing forage and livestock producers.
An Interactive Approach To Technology Transfer In A Development Project - A Case Study, A.C P. Chu, P.N P. Matthews, J Hodgson
An Interactive Approach To Technology Transfer In A Development Project - A Case Study, A.C P. Chu, P.N P. Matthews, J Hodgson
IGC Proceedings (1977-2023)
The paper covers technology transfer in the United Nations Development Programme funded Agro-grassland Systems Development Project in Guizhou Province, China, which ran from 1989 to 1994 and involved the development of pasture based smallholder livestock systems at three environmentally contrasting sites. The project involved the participation of management, technical staff and smallholder farmers at the local level with outside support from the Gansu Grassland Ecological Research Institute, Gansu Province, China and Massey University, New Zealand. A feature of the project design was the retention of project management at the local level. Interactive training programmes were conducted in New Zealand and …
Night Penning As A Management Technique For Both Pasture Development And Pasture Improvement For Small Holders In Southern China, W L. Jiang, P.N P. Matthews, C B. Luo, J Z. Ren, J Hodgson, A.C P. Chu
Night Penning As A Management Technique For Both Pasture Development And Pasture Improvement For Small Holders In Southern China, W L. Jiang, P.N P. Matthews, C B. Luo, J Z. Ren, J Hodgson, A.C P. Chu
IGC Proceedings (1977-2023)
A series of experiments conducted at Weining, Guizhou Province, China demonstrated night penning to be a successful technique for the improvement of native pastures through enhancement of soil fertility and change in the botanical composition of the sward. The best overall results were achieved with a penning intensity of 7 to 8 sheep nights per m- with pasture establishment most successful from May to September. Ryegrass (Lolium perenne), cocksfoot (Dactylis glomerata), Yorkshire fog (Holcus lanatus) and white clover (Trifolium repens) were the most suitable for establishment. A number of strategies to increase …
An Interactive Multimedia Educational Program For Pasture Management, P G. Tow, Corina Mulholland, P Marriott, D A. Shelton
An Interactive Multimedia Educational Program For Pasture Management, P G. Tow, Corina Mulholland, P Marriott, D A. Shelton
IGC Proceedings (1977-2023)
Developing abilities in pasture management decision making is important for all students of pasture agronomy, whether they plan to work in management, extension or research. Such problem-based learning fosters an ability to understand and apply principles, and to integrate and use information from various sources. A computerassisted, problem based, multimedia educational programme, “Pasture Management” has been developed to complement limited field exercises in pasture assessment and management. It comprises illustrated case studies and supporting information. Students interact with the programme by choosing alternative management options, calling up images and text as required to assist them. The programme supplies feedback for …
Ecological Site Database- Basic Site Information For Resource Analysis And Decision Making, S L. Ekblad, J R. Carlson, W R. Oaks
Ecological Site Database- Basic Site Information For Resource Analysis And Decision Making, S L. Ekblad, J R. Carlson, W R. Oaks
IGC Proceedings (1977-2023)
The USDA Natural Resource Conservation Service (NRCS) describes and interprets range, native pasture, grazable forest, pasture, and hayland with ecological site descriptions and forage suitability groups. Ecological sites have evolved from agency range and woodland site descriptions, and have integrated alternate and more recent concepts with the traditional succession-retrogression model for site classification and interpretation. Ecological site interpretations are based on vegetation sampling by weight and composition, and other field data collection. Sample data is recorded and managed in the Ecological Site Information System (ESIS) and is analyzed to identify and develop site and suitability group descriptions. ESIS provides data …
Development Of Forage Components Through Farmer Participatory Research, F G. Gabunada Jr, W W. Stur, P M. Horne
Development Of Forage Components Through Farmer Participatory Research, F G. Gabunada Jr, W W. Stur, P M. Horne
IGC Proceedings (1977-2023)
This paper describes farmer participatory research activities aimed at developing appropriate forage technologies with smallholders in Southeast Asia. Farmers are actively involved from the early stages, working as equal partners with researchers. This has led to a better understanding of selected farming systems, identification of technologies that have potential for testing by farmers, and better understanding of the criteria farmers consider important for forages to be useful within those farming systems.
Validation Of Arachis Pintoi As A Forage Legume In Commercial Dual Purpose Cattle Farms In Forest Margins Of Colombia, C E. Lascano, G A. Ruiz, J Valasquez, J Rozo
Validation Of Arachis Pintoi As A Forage Legume In Commercial Dual Purpose Cattle Farms In Forest Margins Of Colombia, C E. Lascano, G A. Ruiz, J Valasquez, J Rozo
IGC Proceedings (1977-2023)
An on-farm pilot project was initiated in the Andean piedmont of the Amazon basin in Caquetá, Colombia to determine the contribution of the forage peanut Arachis pintoi (CIAT 17434) introduced in degraded pastures to animal production and soil improvement. Early results show that milk production in dual purpose cattle farms can be increased by 20% with A. pintoi-based pastures. However, to enhance adoption of the legume by farmers there is a need to make adjustments on pasture management and assure supply of high quality seed in the region.
Case Studies- A Useful Tool For Integrating Socio-Economic Data Into Grazing Systems Research, N D. Macleod
Case Studies- A Useful Tool For Integrating Socio-Economic Data Into Grazing Systems Research, N D. Macleod
IGC Proceedings (1977-2023)
Grazing systems research and development (R&D) projects can provide important information on which to base management principles to integrate conservation management into grazing production systems. However, the adoption of these principles into practice remains largely unfulfilled. Most grazing experiments give limited attention to the socio-economic context of pastoral management. The paper suggests that one way of incorporating R&D findings and presenting them within a context that is more acceptable to decision-makers is via a case study approach. That is, use the considerable communication potential of the approach.
Agri-21: Sustainable Farming Demonstration, M Rasnake, W R. Burris, G D. Lacefield
Agri-21: Sustainable Farming Demonstration, M Rasnake, W R. Burris, G D. Lacefield
IGC Proceedings (1977-2023)
On-farm demonstrations were established in 1993 to demonstrate the technology required to conduct a profitable and sustainable farming operation into the 21st Century. These were part of a cooperative program between the Tennessee Valley Authority (TVA) and Land Grant Universities in the seven states of the TVA region. Four demonstrations were established in Kentucky. A beef farm in west Kentucky will be used to illustrate the project. This farm improved crop and livestock management, record keeping and environmental stewardship. Their goal is to increase farm profitability while improving the soil and water resources.
Extension Agronomist Perceptions Regarding Clover Use In The Usa, D M. Ball, G D. Lacefield
Extension Agronomist Perceptions Regarding Clover Use In The Usa, D M. Ball, G D. Lacefield
IGC Proceedings (1977-2023)
Recent enhancement of economic incentives for using legumes in forage/livestock systems seems likely to result in greater usage of clovers in the USA. To determine attitudes regarding clovers, a questionnaire was sent to forage crop agronomists having Extension assignments. Responses to most questions varied greatly, particularly among geographic regions. Poor grazing management was identified as the primary concern or problem associated with clovers, followed by poor persistence, and a lack of recognition of the benefits. Improved forage quality was ranked as the most important benefit, followed by better distribution of pasture growth, and biological nitrogen fixation. The importance of benefits …
Roles Of Clovers In Southeast U.S.A Pastures, G D. Lacefield, D M. Ball, J C. Henning, M Rasnake
Roles Of Clovers In Southeast U.S.A Pastures, G D. Lacefield, D M. Ball, J C. Henning, M Rasnake
IGC Proceedings (1977-2023)
Grasses dominate pastures in the Southeast U.S.A.; research and farmer experience have shown that the addition of legumes to grass dominant pastures can improve environmental, agronomic and animal parameters. Legumes grown in mixtures with grasses can increase yield, improve forage quality and animal performance, convert atmospheric nitrogen into a form useable by plants, extend the grazing season, and offset certain animal disorders. As livestock producers continue to strive for more sustainable feed production and utilization programs with greater emphasis on grazing, legumes will play an even greater role in Southeast U.S.A. agriculture.
Sustainable Grazing Systems- A Program To Develop And Deliver Improved Temperate Pastures In Australia, W K. Mason, G Kay, G Lodge
Sustainable Grazing Systems- A Program To Develop And Deliver Improved Temperate Pastures In Australia, W K. Mason, G Kay, G Lodge
IGC Proceedings (1977-2023)
The Sustainable Grazing Systems Program aims to combine the efforts of producers, researchers and extension agents into a focused partnership to develop, manage and implement grazing systems that are more profitable and more sustainable. Rather than the traditional approach of undertaking the research and then developing extension packages for livestock producers, this Program has set up a network with producers, researchers and extension agents to collectively develop and test improved systems. The process is described as colearning. Compared with more traditional approaches, producer input is greatly increased as the role of researchers and extension agents is modified, but not decreased. …
A New Degree For Land Based Industries At Massey University, New Zealand, J Hodgson, R D. Anderson, J H. Kirkman
A New Degree For Land Based Industries At Massey University, New Zealand, J Hodgson, R D. Anderson, J H. Kirkman
IGC Proceedings (1977-2023)
A brief description is given of the background, structure and management of a new Bachelor of Applied Science degree introduced at Massey University in 1994 to meet the changing needs of the primary sector industries. Examples are given of the flexibility of choice offered to students enrolling in the programme, with particular reference to opportunities in plant and pastoral science. Enrollment statistics for the first two years of the programme are discussed.
The Evolving International Grassland Congress, L R. Humphreys
The Evolving International Grassland Congress, L R. Humphreys
IGC Proceedings (1977-2023)
The locations of the International Grassland Congresses are listed. Analysis of the disciplinary themes of papers presented at five Congresses from 1937 to 1993 indicated a considerable homeostasis of content. The plant genetic base for grassland improvement received most attention, and this, together with plant physiology, plant ecology and soil science contributed 52 to 57 per cent of the subject matter at all five Congresses. Emergent topics are mentioned.
Forage Information System On The World Wide Web, D B. Hannaway, S Griffith, P Hoagland, M Runyon, R Fisher
Forage Information System On The World Wide Web, D B. Hannaway, S Griffith, P Hoagland, M Runyon, R Fisher
IGC Proceedings (1977-2023)
The Forage Information System on the World Wide Web (FIS WWW) is a global forage information resource envisioned to become a comprehensive information system for all aspects of forages. WWW technologies provide an opportunity to link people and information in a work-sharing and access-on-demand environment via interlinking of computers. The FIS is a collection of Internet-based forage information linked and accessible via WWW access software programs (browsers), like NetscapeR. Browsers provide a unified interface for information on the Internet. They make it possible to access formatted text, color pictures, sound, and video. The “superstructure” for FIS WWW is being developed …
Preliminary Evaluation Of Introduced And Local Lines Of Pearl Millet Under North Sinai Conditions, A H. Belal, A A. Younis
Preliminary Evaluation Of Introduced And Local Lines Of Pearl Millet Under North Sinai Conditions, A H. Belal, A A. Younis
IGC Proceedings (1977-2023)
Field trials were conducted during 1994 and 1995 seasons on calcareous soil to evaluate thirty introduced and local lines of forage pearl millet (Pennisetum americanum). The evaluation included growth characteristics, forage yield, chemical composition and ion content. Present results of both seasons indicate that the thirty lines varied significantly in their growth, forage yield, chemical composition and ion content, organic and inorganic. The top productivity of dry yield and its components was from the ICMP- 155, while the lowest was from an introduced line from Ghana. Also, the line ICMP-155 gave the highest values of C.P., P+++, K+, …
The Rangeland Type And Its Geographical Distribution In Tibet, Cui Heng-Xin, Weinahan Heng-Xin
The Rangeland Type And Its Geographical Distribution In Tibet, Cui Heng-Xin, Weinahan Heng-Xin
IGC Proceedings (1977-2023)
The area of Tibet is a major component of the Qing-Zang Plateau. The natural conditions are complex with various environmental types. The range of the area is of various types. Almost all the range types found in China are presented here. It is characterized by the geographical distribution on horizontal belts in plateau with vertical differences. Therefore it represents the characteristics of the combination of horizontal and vertical changes.
A Comparison Of Steer Gains On Cunningham Leucaena And Some Alternative Psyllid-Tolerant Shrub Legumes, R J. Jones, B Palmer
A Comparison Of Steer Gains On Cunningham Leucaena And Some Alternative Psyllid-Tolerant Shrub Legumes, R J. Jones, B Palmer
IGC Proceedings (1977-2023)
Five shrub legumes, Leucaena leucocephala cv.Cunningham, L. leucocephala cv.Tarramba, L. diversifolia CPI 33820, L. pallida CQ 3439 and Calliandra calothyrsus CPI 115690 were compared for yield and steer gain in comparison to an all-grass control. Shrubs were sown in rows 4 m apart and all treatments, including the control, were sown with the grass Urochloa mosambicensis cv.Nixon. Edible legume yield was highest for L. leucocephala cv.Tarramba and lowest for L. leucocephala cv.Cunningham. In the absence of psyllid attack, liveweight gains over a 5-week period in summer were highest with cv.Cunningham (1170g/d) and lowest for C. calothyrsus (391 g/d) and the …
Forage Based Fallow Management Strategies For Intensified Land Use And Resource Conservation In Small Holder Farms, M A. Mohamed Saleem, Kahsay Berhe
Forage Based Fallow Management Strategies For Intensified Land Use And Resource Conservation In Small Holder Farms, M A. Mohamed Saleem, Kahsay Berhe
IGC Proceedings (1977-2023)
Intensification of land-use is inevitable for long term food security in the east African highlands, but technological options need to be environmentally safe. How forages can be used as a basis for intensified grain and fodder production from the same land unit, and serve as a profitable fallow during necessary crop-free rest period is the purpose of this study.
Water Use In A Newly Established Pasture As Influenced By Grazing Management, M H. Entz, W P. Mccaughey
Water Use In A Newly Established Pasture As Influenced By Grazing Management, M H. Entz, W P. Mccaughey
IGC Proceedings (1977-2023)
The objective of this study was to determine the effects of grazing system and stocking rate on spring profile soil water, soil water extraction and evapotranspiration (ET) of a newly established grass/ legume pasture. The experiment, located on a fine sandy loam soil in western Manitoba, was a two replicate RCBD with continuous and rotational grazing at stocking rates of 1.1 and 2.2 steers/ha. The pastures contained alfalfa (Medicago sativa L.), meadow bromegrass (Bromus biebersteineii Roem and Shult.) and Russian wild ryegrass (Elymus juncea L.). Growing season ET averaged 38.4 cm and was consistently highest for …
The Effect Of Crop Residues On Cattle Productivity Wihtin Agropastoral Production Systems In Southern Mali, S.J L.E Leloup, L 'T Mannetje
The Effect Of Crop Residues On Cattle Productivity Wihtin Agropastoral Production Systems In Southern Mali, S.J L.E Leloup, L 'T Mannetje
IGC Proceedings (1977-2023)
The effect of seasonal diet on cattle productivity was studied in a village in southern Mali. A comparison of measured and simulated liveweight changes of cattle proved that crop residue consumption during the dry season has become indispensable for animal production. Correspondingly, maximum livestock numbers to be fed during the dry season appeared to be directed by crop residue availability. Apparently crop residue availability determines cattle productivity in this village. This is likely to be the case in most of southern Mali where the importance of rangelands’ perennial grasses is decreasing.
Grazing Impacts On The Production Stability Of Fescue Prairie, W D. Willms, J F. Dormaar, J R. King
Grazing Impacts On The Production Stability Of Fescue Prairie, W D. Willms, J F. Dormaar, J R. King
IGC Proceedings (1977-2023)
The fescue prairie in southwestern Alberta is highly productive but susceptible to grazing during the growing season. This study examined how production stability is affected by grazing impact. It was initiated in 1949 using four fixed stocking rates (1.2, 1.6, 2.4, 4.8 animal-unitmonths ha-1). Forage and livestock production were estimated over 4 or 15 years, respectively. The coefficient of variation (CV) for either primary or secondary production was constant over all rates except for the very heavily stocked paddock. Forage production, and therefore livestock production, in that paddock was dependent on precipitation during the growing season. Heavy grazing pressure resulted …
The Role Of Tagasaste (Chamaecytisus Proliferus) In Farming Systems Of Southern Australia, E C. Lefroy, A K. Abadi Ghadim, N J. Edwards, M A. Ewing
The Role Of Tagasaste (Chamaecytisus Proliferus) In Farming Systems Of Southern Australia, E C. Lefroy, A K. Abadi Ghadim, N J. Edwards, M A. Ewing
IGC Proceedings (1977-2023)
Farm scale economic analysis of a recently developed alley cropping system based on the fodder shrub tagasaste (Chamaecytisus proliferus) was carried out using the optimising model MIDAS. The model was used to assess the potential application of this new farming system to infertile sandplain soils in southern Australia by comparing the profitability of improved serradella based annual pasture (Ornithopus compressus and O. sativa), tagasaste in plantations and tagasaste alley cropping. The third option was the most profitable, increasing sheep carrying capacity by 76% and resulting in 45% of the model farm being planted to tagasaste alley …
Can The Restoration Of Degraded Rangelands Ever Be Economic?, N D. Macleod, J C. Noble, J R. Brown
Can The Restoration Of Degraded Rangelands Ever Be Economic?, N D. Macleod, J C. Noble, J R. Brown
IGC Proceedings (1977-2023)
Degradation of rangeland pastures in Australia is widespread and ongoing. The characteristics of many restoration technologies in relation to land values contribute to a perception of their being uneconomic. However, while this might be true within the general context of broadscale application, it need not be the case in specific instances. Both the underlying contexts and processes need to be considered in assessing the economic value of a given restoration technique for a given degradation problem.
Modifying Management Methods To Promote The Reform And Development Of Grassland Based Animal Husbandry Through Better Resource Use, Cui Heng-Xin, Zhang Jiang-Ling, Asya Jiang-Ling
Modifying Management Methods To Promote The Reform And Development Of Grassland Based Animal Husbandry Through Better Resource Use, Cui Heng-Xin, Zhang Jiang-Ling, Asya Jiang-Ling
IGC Proceedings (1977-2023)
The development of grassland livestock production cannot rely on the cost of pasture degradation. The stocking rate has to be based on the pasture production and it also has to be under the guidance of law. Changing management methods, development of grassland agriculture and optimization of the utilization of natural resources is the effective way of improving the reformation and development of grassland livestock production.
Native Grasses In The Pilbara Region, Australia; Resource Acquisition, Allocation And Growth, L J. Ingram, L T. Bennett, M A. Adams
Native Grasses In The Pilbara Region, Australia; Resource Acquisition, Allocation And Growth, L J. Ingram, L T. Bennett, M A. Adams
IGC Proceedings (1977-2023)
Biomass production and nitrogen content of the native perennial grasses, Barley Mitchell grass (Astrebla pectinata ) and Kangaroo grass (Themeda triandra), were studied over the 1996 growing season. After 160 mm of rain, the biomass of T. triandra increased from 2 to 4 t/ha, while A. pectinata increased from 1.1 to 1.5 t/ha. N in aboveground biomass of T. triandra increased from 14.5 to 17 kg/ha and of A. pectinata from 8.5 to 10 kg/ha. A. pectinata leaves senesced quickly increasing the total amount of N in dead leaves. T. triandra senesced more slowly but dead leaves …
The Effect Of Different Winter Utilization Periods Of A C4 Subtropic Foggage On The Growth Of Weaners, I F. Reckling, G.H J. Kruger
The Effect Of Different Winter Utilization Periods Of A C4 Subtropic Foggage On The Growth Of Weaners, I F. Reckling, G.H J. Kruger
IGC Proceedings (1977-2023)
A significant (P<0.05) increase in lick consumption was found, as winter progressed, which was attributed to a significant decline in the quality (P<0.05) of Digitaria eriantha foggage. Harvested treatments resulted in a significant (P<0.05) decline in residual soil nitrogen levels compared to unharvested treatments. Losses, due to trampling, on average was 21.25%. It is advocated that Digitaria eriantha ought to be utilised in summer and is only suitable for maintenance if utilised in winter.
Leucaena Leucocephala As A Supplement For Goats On Tropical Pastures, T Clavero, R Razz
Leucaena Leucocephala As A Supplement For Goats On Tropical Pastures, T Clavero, R Razz
IGC Proceedings (1977-2023)
A field experiment was conducted in the dryland farming area of Northwest Venezuela in order to evaluate three diets in grazing goats (pasture only; grazing pasture + 0.3 kg of commercial concentrate/ animal/d; grazing pasture + restricted grazing for 2 hours daily in Leucaena leucocephala) on milk production (mp) and milk composition (fat -f- and mineral concentration -mc-). The experiment was laid out as randomized block design. The data showed significant difference (P<0.05) between treatments. Milk production increased in 50 and 70% when goats had access to commercial concentrate or Leucaena graizing as well as grass pasture compared with the control treatment. Milk production in goats with access to Leucaena was insignificantly different than goats on concentrate. Treatments did not affect milk composition. The results suggest that Leucaena leucocephala can supply an adequate amount of nutrient with similar value to commercial concentrate for milk production in grazing goats.