Yield, Composition And In Vitro Digestibility Of Russell Lupin,
2024
Lincoln University
Yield, Composition And In Vitro Digestibility Of Russell Lupin, S M. Kitessa, G D. Hill, A M. Nicol
IGC Proceedings (1977-2023)
Six harvests were made (at 3-weekly intervals) from spring regrowth of Russell lupin (Lupinus polyphyllus x Lupinus arboreus ) to evaluate changes in yield and nutritive value with plant maturity. Dry matter (DM) yield and neutral detergent fibre (NDF) concentration increased from 40 to 160 g/plant and 24 to 46%, respectively, while nitrogen concentration, in vitro cellulase DM and organic matter digestibility decreased from 4.5-2.4%, 77-56% and 81-55%, respectively, as the lupins matured from late vegetative to hard pod stage. Peak digestible DM (DDM) yields of Russell lupins, at about 90 g/plant, occurred at full bloom and dry pod, …
Control Of Oxytropis Ochrocephala Bge. On The Mountainous Pasture Of Southern Ningxia, China,
2024
Ningxia Agricultural College
Control Of Oxytropis Ochrocephala Bge. On The Mountainous Pasture Of Southern Ningxia, China, Guo Sijia, Chen Yizhong, Li Kechang, Xu Rong
IGC Proceedings (1977-2023)
Oxytropls ochrocephala Bge., the main poisonous plant on the mountainous pasture in southern Ningxia, has Increased dramatically as a result of overgrazing, The results of a series of studies on control of this plant show the following 3 ways are effective, (1) Spraying selective herbicide Butylate which makes the unpalatable dicotyledons drop by 37% and poisonous plant drop by 86.8% while the palatable grasses increase by 230%; the total yield is raised by 5.4%. This method can both control the poisonous plant and improve the pasture. (2) Spraying herbicides Starane, T-101, D-250, etc., which can specifically kill Oxytropis ochrocephala …
Tussac Grass (Parodiochloa Flabellata): A Potentially Valuable Forage For Winter Grazing In The Falkland Islands. Ii. Restoration Of A Natural Resource,
2024
Department of Agriculture
Tussac Grass (Parodiochloa Flabellata): A Potentially Valuable Forage For Winter Grazing In The Falkland Islands. Ii. Restoration Of A Natural Resource, G M. Hoppe, S G. Howlett, J A. Kerr
IGC Proceedings (1977-2023)
Tussac grass (Parodiocholoa flabellata) is a coastal tussock-fonning grass and is potentially the most valuable source of winter feed and shelter for livestock and as a wildlife habitat. Tussac grass herbage provides a feed of high digestibility throughout the year and is unrivalled by any other native plant species in the Falkland Islands. Historical records indicate that this was recognised as a valuable resource; sadly however, an estimated 81% of the former coastal tussac fringe has disappeared and only approximately S000 ha remain. Recent changes in farm ownership and farming attitudes have resulted in a greater awareness of …
Tussac Grass (Parodiochloa Flabellata): A Potentially Valuable Forage For Winter Grazing In The Falkland Islands. I. Past Use And Management,
2024
British Antarctic Survey
Tussac Grass (Parodiochloa Flabellata): A Potentially Valuable Forage For Winter Grazing In The Falkland Islands. I. Past Use And Management, D.W H. Walton, J H. Mcadam, J A. Kerr
IGC Proceedings (1977-2023)
Tussac grass (Parodiochloa flabellala) is a tall (up to 3 m), tussockforming, coastal grass reported by settlers in the early 1800s to be the best grazing for cattle and horses. Fire and uncontrolled grazing with sheep during the late 19th and early 20th centuries caused widespread damage to the coastal tussac fringe. Although some replanting by hand occurred, on most of the larger farms lack of protection to sensitive tussac stands has resulted in a decline in the total area from around 22 000 ha originally to an estimated 4000 ha in 1988. During the 20th century some …
Effects Of Burning And Grazing On Stability Of Upland Snow Tussock (Chionochloa Spp.) Rangeland In South Island, New Zealand,
2024
University of Otago
Effects Of Burning And Grazing On Stability Of Upland Snow Tussock (Chionochloa Spp.) Rangeland In South Island, New Zealand, A F. Mark
IGC Proceedings (1977-2023)
A brief history of the origin and I SO years of pastoral use is given for the rangelands of New Zealand's South Island rain-shadow mountains. Deterioration of the upland snow tussock (Chionochloa spp,) rangelands is outlined and the explanations emerging from detailed ecological research, especially over the last 3 decades, are presented. Modifications to the burning and grazing, as traditionally practised, will be the basis for sustaining the rangeland resource and are now required by legislation.
Growth And Persistence Of Trifolium Ambiguum On "High Country" In Tasmania, Australia,
2024
University of Tasmania
Growth And Persistence Of Trifolium Ambiguum On "High Country" In Tasmania, Australia, J J. Yates
IGC Proceedings (1977-2023)
Trifolium ambiguum has been grown from seed in small plots, generally in association with Poa pratensis and under irregular, intermittent grazing, at a site located about latitude 42°S at an elevation of c. 1030 m, on reddish-brown, stony soil. Si)( cultivars were sown in 1979 after the successful establishment of one cultivar (Summit) some years earlier. Establishment from seed was very slow, little herbage being produced in the first 2 or 3 years. Maximum production has been achieved at about year 7 or 8, with total dry mailer yields of 550-750 g/m1 and clover content varying generally between 40% and …
High-Elevation Rangeland In The Himalaya And Tibetan Plateau: Issues, Perspective And Strategies For Livestock Development And Resource Conservation,
2024
University of Montana
High-Elevation Rangeland In The Himalaya And Tibetan Plateau: Issues, Perspective And Strategies For Livestock Development And Resource Conservation, Daniel J. Miller, Donald J. Bedunah
IGC Proceedings (1977-2023)
The high-elevation rangelands of the Himalaya and Tibetan Plaleau have supported pastoral cultures for thousands of years while sustaining a diverse and unique flora and fauna. These rangelands are coming under increasing pressure from an expanding human population bul, properly managed, they should sustain watersheds, supply much of the projected increased demand for lives lock products and provide critical habitat for endemic wildlife, including many endangered species. Despite the extent and importance of this cold, semi-arid rangeland ecosystem there have been few scientific studies and little interest from development agencies regarding the management of these areas. Range and livestock development …
Strategies For Maintenance And Restoration Of Soil, Water, Flora, And Fauna In Cold Temperate Rangelands. Ii. Technology Transfer Through A Fully Integrated Natural Resource Decision-Support,
2024
USDA, Soil Conservation Service
Strategies For Maintenance And Restoration Of Soil, Water, Flora, And Fauna In Cold Temperate Rangelands. Ii. Technology Transfer Through A Fully Integrated Natural Resource Decision-Support, Jack R. Carlson
IGC Proceedings (1977-2023)
Natural resource management in cold temperate rangelands requires a comprehensive approach and must deal with considerable complexity. This paper presents the second of two proposed strategies for these rangelands: develop and apply an integrated, internationally co-ordinated, natural resource decision-support system. Such an approach should enable land managers to balance uses to maintain soil, water, flora and fauna resources al acceptable quality levels, Natural resource agencies and groups should collaborate on standards for developing the software in the system. The approach of one natural resource agency is presented here and offered here as one element for further discussion of a co-ordinated …
Strategies For Maintenance And Restoration Of Soil, Water, Flora And Fauna Resources In Cold Temperate Rangeland. I. Grass Is Not Always King; Manage For Diversity,
2024
Shrub Sciences Laboratory, USDA
Strategies For Maintenance And Restoration Of Soil, Water, Flora And Fauna Resources In Cold Temperate Rangeland. I. Grass Is Not Always King; Manage For Diversity, Bruce L. Welch
IGC Proceedings (1977-2023)
To conserve natural resources on rangelands requires an integrated systems approach to management. This approach typifies strategic plans or initiatives of natural resource agencies involved with the management of cold temperate rangelands. Expounding on this theme, this paper (Part I) proposes one of two strategic actions: increase and optimise the use of shrub plant resources on rangelands. (The second strategy is discussed in the subsequent paper, Part II.) Shrubs contain many attributes not found in grasses or other herbaceous species that favourably affect hydrologic, soil conservation, plant growth, and other fundamental processes that characterise natural resource interactions.
A Seed Supply Project For Tropical Forage Species In The Amazon Region Of Peru,
2024
CIAT
A Seed Supply Project For Tropical Forage Species In The Amazon Region Of Peru, J E. Ferguson, F Hidalgo, J Vela, G Silva, C Reyes, R Perez
IGC Proceedings (1977-2023)
A multi-institutional seed supply project was conducted with activities in seed production, purchase and distribution; training and revision; technical assistance; and applied research. Over a 5-year period, 2 regional project nuclei were established and consolidated with minimum equipment and through training. A composite total of 8.5 t of seeds (i.e., all materials) were produced and distributed mainly for on-station and on-farm evaluation of grass-legume associations. The nuclei were sharefarmed with small-farmers and from 24 novices 4 experienced multipliers were identified. A rotating fund was a key financial mechanism. Annual reviews were highly participatory and included reporting, training, analysis and planning. …
Commercial Seed Production Of Tropical Forage Grasses And Legumes In Costa Rica,
2024
San Isidro del General
Commercial Seed Production Of Tropical Forage Grasses And Legumes In Costa Rica, Rosemary Sylvester-Bradley, J E. Ferguson
IGC Proceedings (1977-2023)
ABSTRACT A commercial seed enterprise with the initial objective of producing and marketing seeds of recently selected pasture species (Brachriaria dictyoneura and Arachis pintoi) oo small farms in the south west of Costa Rica is described. Farmers provide land and fencing and use the seed plots for grazing when not In the flowering period. The enterprise provides labour and technical organisation for establishment and seed production. Costs of organisation, and research and development work were greater than production costs; To achieve profitability the enterprise needs to increase net income possibly through share-cropping including animal production, and diversification into …
Ruzi Grass (Brachiaria Ruziziensis) Seed Production In North-East Thailand,
2024
Khon Kaen Animal Nutrition Research Centre
Ruzi Grass (Brachiaria Ruziziensis) Seed Production In North-East Thailand, Chaisang Phaikaew, Chanchai Manidool, Pimpaporn Devahuti
IGC Proceedings (1977-2023)
The recent expansion of beef and dairy production in Thailand has increased demand for pasture seed. Ruzi grass (Brachiaria ruziziensis) seed production has increased from 18 tin 1983 to 466 tin 1991. The; production sites are in the north east, where soils and climate are most suitable for seed production. 60% of all ruzi seed is being produced by smallfarmers; the rest is produced by government stations. Average farmer yield of rilzi is 400 kg • seed/h'a, with each farmer contracted 'to grow 0.32 h�� of ruzi grass, at a guaranteed price of US$2/kg; Abo·ut 2700 farmers are …
Effects Of Storage Period, Disease Infection And Treatment With Potassium Nitrate On Viability And Germination Rate Of Guinea Grass,
2024
Imo State University, Owerri
Effects Of Storage Period, Disease Infection And Treatment With Potassium Nitrate On Viability And Germination Rate Of Guinea Grass, Okoro Oji, F N. Madubuike, F.O C. Ezedinma
IGC Proceedings (1977-2023)
Mature seeds harvested from both fungicide-sprayed and unsprayed portions of plots, were stored and used in germination trials to test the effects of length of storage, disease infection and treatment with potassium nitrate solution on germination of guinea grass (Panicum maximum). There was no germination before 14 weeks of post-harvest storage irrespective of fungicidal treatment. Among the fungicide• sprayed seeds, germination was highest with 18 weeks' storage, suggesting a probable inactivity of the embryo when freshly harvested and up to 17 weeks' post-harvest storage. Treatment with potassium nitrate appeared to increase germination in Panicum maximum. For the …
Model Herbage Seed Farm Establishment In South-West China, Guizhou Province,
2024
AgResearch, NZ
Model Herbage Seed Farm Establishment In South-West China, Guizhou Province, M P. Rolston, G W. Lill, R W. Brougham, Xie Jishi
IGC Proceedings (1977-2023)
A model herbage seed farm was established during 1983-1988 in Guizhou to provide a base for research, training and the product.ion of quality seed for smallholder pasture development. The site is at 26°N in a monsoonal subtropical zone at 1000 m asl. Mean monthly temperatures range from 4°C in winter to 25°C in summer. Seed yield potential of cultivars of perennial ryegrass (Lolium perenne), cocksfoot (Dactylis glomerata), white clover (Trifolium repens) and red clover (Trifolium pratense) was evaluated. Major nutrient limitations were identified, including responses to K and P. Management strategies to …
Pasture Seed Production In Tanzania,
2024
Livestock Production Research Institute
Pasture Seed Production In Tanzania, M L. Kusekwa, M M.S Lugenja, D B. Mpiri, J.K K. Msechu
IGC Proceedings (1977-2023)
Grass seed of Chloris gayana, Branchiaria ruzizinsis, Cenchrus ciliaris, Panicum maximum and legume seeds of Macroptilium atropurpureum, Neonotonia wightii, Macrotyloma axillare, Stylosanthes spp., Desmodium pp., Centrosema spp. and Macrotyloma axillare are produced by government institutions and small-scale dairy producers in Tanzania. In the last 5 years 2-10 t of seed have been produced annually.· The producers have been responsible for the disposal of seeds. Small-scale seed producers have acquired seed production skills through short courses and farmers' day festivals. The World Food Programme has financed production of improved pasture seeds al government institutions and this has assisted in …
Seed Production Of Centro Under Three Support Systems: Unstaked, Staked And Growing With Cassava,
2024
Namulonge Research Station
Seed Production Of Centro Under Three Support Systems: Unstaked, Staked And Growing With Cassava, P Lusembo, E N. Sabiiti, C E. Ebong
IGC Proceedings (1977-2023)
A study was conducted to determine whether cassava could provide the necessary support to increase seed yields of centro (Cemrosema pubescens). The effect of centro on cassava tuber yield and the cost of production of centro seed under 3 production systems, i.e., unslaked, staked and supported by cassava, were determined. Results showed that centro twining on cassava yielded more seed than the unstaked one. It was slightly but significantly (P<0.05) less than that of staked cenlro. Centro did not affect cassava tuber yield. Production costs of 1 kg of seed were equivalent to US$1.2, 2 and 3.7 for centro supported by cassava, unslaked and staked, respectively. It was concluded that centro seed could be easily and economically produced on small-scale farm holdings in Uganda where cassava in widely grown.
Efficiency Of Grassland Areas Of Desert Steppe In North China,
2024
Ningxia Agricultural College
Efficiency Of Grassland Areas Of Desert Steppe In North China, Wang Ning, Wang Kezhi
IGC Proceedings (1977-2023)
On the desert steppe of Yanchi County of Ningxia Province, where 1he annual precipilalion is only 300 mm, some methods, including reducing unirrigated land, exploiting water resources, cultivating grasses, planting trees and developing animal husbandry, have been used to improve production. After 10 years the poor villages have become richer; the cultivated grassland is up to 44% of the total arable area and the forest cover to 15%; value of livestock farming output has increased by as much as 5 times, gross yields of grain have increased 1.5-fold, and the average income per capita increased more than 5-fold.
Some Problems Hindering Forage Seed Production In Cameroon,
2024
University Centre of Dschang
Some Problems Hindering Forage Seed Production In Cameroon, E Tedonkeng Pamo
IGC Proceedings (1977-2023)
Seed production is a key factor for successful and increased agricultural production both in favourable and unfavourable environments. In many developing countries, seed production in general, and forage seed production in particular, have often been neglected. As n result, very litlle information exists in this area. This study was carried out to assess forage seed production and perspectives in Cameroon. The findings indicate that large quantities of forage seed have been introduced in Cameroon but very little has reached the farmers because of political nnd institutional problems and lack of extension assistance at farm level. This points to a necessity …
Towards More Forage Seeds For Small Farmers In Latin America,
2024
CIAT
Towards More Forage Seeds For Small Farmers In Latin America, J E. Ferguson, G Sauma
IGC Proceedings (1977-2023)
Smallfarmers in Latin America are scattered among different agroecosystems, such as: Andean highlands; Central American and Andean hillsides; Amazonian basin forest margins; and non-Andean crop margins. Forages, mainly grasses, are used to different degrees in mainly mixed and diversified crop-livestock farming syslems. The range of species, both temperate and tropical, is wide and increasing. Seed supply is variable, but limited by the range and availabilily of materials, variable quality of tropical grasses and high prices. Seed systems tend to be informal and incipient, especially with tropical species. This paper describes five seed projects and seed enterprises and draws generalisations from …
Sustainable Supplies Of Quality Herbage Seed For Sub-Saharan Africa Smallholders,
2024
International Livestock Centre for Africa
Sustainable Supplies Of Quality Herbage Seed For Sub-Saharan Africa Smallholders, R Griffiths
IGC Proceedings (1977-2023)
SubSaharan Africa herbnge seed activities were evaluated by means of questionnaires. Topics ranged from collection and evaluation, through multiplication to distribulio,n nnd seed quality. The current smallholder lack of access lo herbage seed supplies is discussed and proposals for overcoming this problem submitted for consideration by those concerned.
