Increasing Flora Diversity In Grassland Swards,
2025
AFRC/IGAP
Increasing Flora Diversity In Grassland Swards, R J. Haggar, D Jones
IGC Proceedings (1977-2023)
Europe's farmers are being encouraged to take land out of agriculture in order to reduce surplus cereal production. There is therefore, increasing scope for creating new species-rich swards, although guidelines for this purpose are lacking. Several reasons are advanced for encouraging species diversity and conservation, including recreational, ethical, education and resource utilisation. As leisure time increases, so public interest in conservation matters increases. Scientifically, there is a need to preserve genetic diversity and to understand the complex plant and animal relationship leading to a rich and varied community. This paper describes two experiments aimed at achieving a . highly diverse …
Grass Plan Density For Adequate Conservation Reserve Program Stands,
2025
North Dakota State University--Fargo
Grass Plan Density For Adequate Conservation Reserve Program Stands, D W. Meyer, D Rugroden
IGC Proceedings (1977-2023)
The Conservation Reserve Program (CRP), a federal program with the objective to reduce surplus feed grain production in the United States by idling marginal cropland, has already idled nearly 12 million hectares with a target of 32 million hectares. Idled land must be seeded to perennial grasses to help prevent soil erosion. The required grass seeding has caused the cost of grass seed to increase several fold ; therefore, establishment cost could be reduced considerably if seeding rates could be reduced from the present recommended 215 to 323 seeds/m2 (Dodds, 1981). Recommended seeding rates were developed from research on establishment …
Multiple Of The Intermountain Region, Forest Service, United States Department Of Agriculture,
2025
USDA Forest Service
Multiple Of The Intermountain Region, Forest Service, United States Department Of Agriculture, J S. Tixier, A H. Winward
IGC Proceedings (1977-2023)
Initial custodians of the National Forests of the United States were primarily concerned about protecting what were perceived as deteriorating timber stands and watersheds. Considerable progress was made in correcting these problems in the first half of this Century. As the population of the United States grew, more people became interested in management of all resources on these public lands. Forest Officers gradually became stewards managing a broad array of lands and resources for which there were often conflicting interests and uses. A primary use of National Forests in the Western United States has been livestock grazing. Here, animals are …
Phosphatic Settling Pond Clays As Potential Forage Legume Seed Production Site,
2025
University of Florida
Phosphatic Settling Pond Clays As Potential Forage Legume Seed Production Site, D D. Baltensperger, G M. Prine, D S. Wofford
IGC Proceedings (1977-2023)
Forage legume species perform a vital role in the agriculture of the state of Florida (Baltensperger et al., 1985a, 1985b, and 1987; Taylord et al., 1985). Cool-season cultivars adapted to this climate must also perform well in the Pacific Northwest or California since these are the primary areas of commercial seed production (Baltensperger et al., 1987). Commercial seed for the wa:m��s_eason species is typically produced in Florida. A primary hm1tmg factor for seed production in Florida is the low water-holding-capacity of the sandy soils which necessitates frequent irrigation, subsequently reducing seed quality. Potential seed production areas include reclaimed phosphate minelands …
Influence Of Reduced Intensity Of Grassland Management On Herbage Yield, Forage Quality, Sod Density And Botanical Composition,
2025
Universitat Bonn
Influence Of Reduced Intensity Of Grassland Management On Herbage Yield, Forage Quality, Sod Density And Botanical Composition, P Dahmen, W Kuhbauch, U Thome
IGC Proceedings (1977-2023)
In the Federal State of Northrhine Westfalia, a number of programs have been initiated to reduce intensity of land use with respect to unwanted environmental effects presumably coming from conventional agricultural systems. On grassland most of the programs require delayed first cuttings for hay and silage, reduced fertilization and/or less grazing pressure on pastures. Field experiments were established in order to evaluate consequences of these programs for practical farming and grassland ecology. Treatments include conventional grassland management systems with intensive fertilization and utilization as well as intermediate and low intensity systems.
Limits For Cattle Slurry Application On Permanent Grassland,
2025
Universitat Bonn
Limits For Cattle Slurry Application On Permanent Grassland, B Stratmann, W Kuhbauch
IGC Proceedings (1977-2023)
Several experiments indicate little risk of groundwater pollution with nitrate under permanent grass (DVWK 1985), but only few studies deal with surface water contamination due to grassland fertilization, especially slurry spreading. The purpose of this work was to determine the effect of cattle slurry in comparison to mineral nitrogen fertilization on surface run-off and interflow quality under different inclinated permanent grassland (18 % and 4.5 % resp.).
Effects Of Incorporation Of Organic Material And/Or Limestone On Grasses Grown On Acid Coal Refuse,
2025
Southern Illinois University Carbondale
Effects Of Incorporation Of Organic Material And/Or Limestone On Grasses Grown On Acid Coal Refuse, B D. Gardner, She-Kong Chong, F J. Olsen
IGC Proceedings (1977-2023)
Disposal of coal preparation wastes is a serious environmental problem. Waste materials whose particle size is less than 2 mm are classified as slurry. About 67 000 hectares in the U.S.A. are affected by surface disposal of coal mining wastes. These materials tend to be acid, draughty and possess high surface temperatures thus retarding natural succession on affected sites. Regulations require that slurry impoundments be covered with 120 cm of non-toxic material and revegetated. The cost of such treatment can exceed $ 24,000 per hectare (Kosowski, 1973). Brundage (1974) and Sukthumrong (1975) concluded that alternate, less expensive methods could be …
On The Resource Of Chinese White Clover (Trifolium Repens L.),
2025
Guizhou Agricultural College
On The Resource Of Chinese White Clover (Trifolium Repens L.), Zhu Bangchang
IGC Proceedings (1977-2023)
China is one of the countries in the world rich in legume. According to the research of Dr Sun-xingdong, the late herbalist, among the Chinese local genera Trifolium, there are white clover (Trifolium repens L. ), and so on; all of them number about more than ten species. White clover has a specially important place in the herbage resource in every province of South China. Chinese white clover is distributed mainly over the range of 22°-51° north latitude, 80°-130° east longitude. The range of optimal temperature for white clover is l9°-24°C, but under -15°C (minimum temperature) in winter, it …
Nutritional Quality Of Subterranean Clover Cultivars In West Central Spain,
2025
CSIC
Nutritional Quality Of Subterranean Clover Cultivars In West Central Spain, B Garcia-Criado, A Garcia-Ciudad, M Rico-Rodriguez, L Garcia-Criado
IGC Proceedings (1977-2023)
The nutritional quality of 61 subterranean clover (Trifolium subterraneum L.) cultivars was studied, during 1982, in the province of Salamanca (semiarid zone of west central Spain). Plant samples were collected at the late-bloom stage and were analyzed for protein, carbohydrates and digestibility. The levels of all these constituents fluctuated within acceptable ranges. Higher relative variability was observed in respect of hemicellulose, protein and lignin, while the digestibility values presented lower relative variability. The latter ranged from 71.1 to 76.1 % with a mean of 73.3%, while protein values ranged from 11.1 to 19.4% with a mean of 14.0%. Chemical …
Influence Of Diverse Harvest Schedules On Evaluation Of Birdsfoot Trefoil Cultivar Compared To Alfalfa,
2025
University of Minnesota
Influence Of Diverse Harvest Schedules On Evaluation Of Birdsfoot Trefoil Cultivar Compared To Alfalfa, C C. Sheaffer, G C. Marten
IGC Proceedings (1977-2023)
Birdsfoot trefoil (Lotus corniculatus; BFf) cultivars, including the recently released 'Noreen', have not been adequately evaluated for their response to a diversity of harvest managements. Our objective was to determine the effect of three harvest schedules on forage yield, forage quality, and stand persistence of BFf cultivars and an adapted cultivar of alfalfa (Medicago sativa). 'Empire', 'Viking', 'Maitland', 'Carroll', 'Leo', and Noreen BFf and 'Ramsey' alfalfa were established in monocultures and in binary timothy mixtures (Phleum pratense). Stockpile (two harvests), recommended hay (three harvests), and simulated pasture (four harvests) schedules were applied for 3 years. Noreen …
Evaluation Of Miyakogusa (Lotus Corniculatus L. Var. Japonicus Regel): Population Distributed In Japan,
2025
National Grassland Research Institute
Evaluation Of Miyakogusa (Lotus Corniculatus L. Var. Japonicus Regel): Population Distributed In Japan, S Saiga, K Suginobu, Shinji Suzuki
IGC Proceedings (1977-2023)
Twenty-one Miyakogusa populations collected from all over Japan were evaluated with 3 birdsfoot trefoil cul ti vars at four different locations between 1982 and 1984. Generally, Miyakogusa showed poor spring vigor, more prostrate type, lower plant height, fewer stems, earlier flowering, less winter hardiness and poor fall vigor. These populations were classified into 5 groups using Principal Component Analysis (PCA) and Cluster Analysis. As the results of PCA plant type, maturity and winter hardiness are mainly extracted for the first, second and third principal component, respectively. Populations belonging to group V and IV, having high scores of the first component …
Identifying Winter Hardy Alfalfa (Medicago Sativa) For Northwestern Canada,
2025
Agriculture Canada
Identifying Winter Hardy Alfalfa (Medicago Sativa) For Northwestern Canada, J S. Mckenzie, G E. Mclean
IGC Proceedings (1977-2023)
Winter kill is one of the most serious problems affecting alfalfa production in northwestern Canada. A rapid and accurate means of assessing winter hardiness is invaluable in developing new cultivars for this region. This program was designed to define some plant and environmental factors responsible for winter injury and to develop tests to identify plants with high yield potential and resistance to severe winter stress in northwestern Canada. The program has determined that the cold hardiness of alfalfa can change from year to year depending upon the plant and/or environmental conditions during the growing season. Three factors have been identified …
Fringed Sagebrush,
2025
Chinese Academy of Agricultural Sciences
Fringed Sagebrush, Ming Chang Wang
IGC Proceedings (1977-2023)
Fringed sagebruch (Artemisia frigida will) is one of the common plants in inner mongolia plateau. It was recognized as an excellent perennial herbaceous plants accunting for a large proportion in wild vegetation. Fringed sagebruch belongs to composites, Semi-frutex, tomentellate in whole plant, tap root may be 100 cm deep in the soil. Fringed sagebrush distributed to the north of the Yellow River in China, Fareast and Caucasus in USSR, Mongolia and Canada. Fringed sagebruch is an excellent forage for horses, cattle, sheep, goats and Camels. The animals will get gain if fringed sagebruch is fed.
Morphological Variation In Prairie Grass,
2025
University of Sydney
Morphological Variation In Prairie Grass, M J. Hill, A C. Kirby
IGC Proceedings (1977-2023)
Prairie grass (Bromus catharticus Yahl) is a little used pasture species in Australia. However, the availability of Grasslands Matua from New Zealand has prompted renewed interest in the plant. Low tillering capacity is a major limitation on good performance of prairie grass in pastures (Hill and Pearson 1985). A comparison of the morphology of Australian commercial lines with a world collection was carried out to define the available variation in agronomically important morphological characters, and Matua was compared with an Australian line at two cutting frequencies and two temperatures during spring and summer. Two morphological groups were distinguished by …
The Performance Of Grass And Legume Species Under Irrigation In Southern Italy,
2025
Universita di Bari
The Performance Of Grass And Legume Species Under Irrigation In Southern Italy, A Corleto, L Magini
IGC Proceedings (1977-2023)
Performance data over a 3 year period are presented for several varieties belonging to grass and legume species were compared in 2 separate randomized block design under cutting in an irrigated flat area of Southern Italy (Segezia, Apulia, altitude 74 m). Among grass highest D .M. Y. was produced by varieties belonging to Phalaris tuberosa, Festuca arundinacea, Brom us catharticus, Dactylis glomerata and one variety (Asso) of Loli um multiflorum. Among legume, varieties of Medicago sativa furnished highest D.M.Y. that outyielded best grasses. The earliest growth has been exhibited by Lolium multiflorum (cv. Asso), Festuca arundinacea (cv. Maris Jebel), Phalaris …
Assessment Of Agronomic Performance Of Large Numbers Of Plant Accessions Using A Computerized Data Management System,
2025
Forage Research Project, Indonesia
Assessment Of Agronomic Performance Of Large Numbers Of Plant Accessions Using A Computerized Data Management System, D A. Ivory, A Ella, J Nulik, R Salam, M E. Siregar, S Yuhaeni
IGC Proceedings (1977-2023)
A major research effort has been directed to finding suitable forage species for animal production in various regions of Indonesia. The two difficulties common to most preliminary evaluation studies of large numbers of diverse groups of forage plants is in deciding firstly what plant attributes should be assessed and secondly, the methods to be used in the management and analysis of large masses of data. A set of minimum plant attributes has been used for both grasses, herbaceous legumes and tree legumes in experiments at a number of key testing sites in Indonesia. A computerized system of data management from …
Forage Attributes Of The Perennial Groundnut Arachis Pintoi In A Tropical Savanna Environment In Colombia, B Grof
IGC Proceedings (1977-2023)
In the continuing search for superior germplasm of tropical legumes adapted to Oxisol savanna conditions, a study of the perennial wild species of groundnut (peanut), Arachis pintoi, was initiated at Carimagua Research Station on the eastern plains (Llanos Orientales) of Colombia. A pintoiis an agronomically little-known legume pasture species indigenous to South America. Its performance in grazed association with four different Brachiaria spp. was evaluated in terms of dry matter yield and animal weight gain. A. pintoi was successful under conditions of heavy grazing (2.4 animal units/ha) employed on a year-round basis. Total grass and legume dry matter (DM) yields …
The Effect Of Previous Experience Of Animals On Subsequent Preference In A Palatability Grazing Trial, C Lascano, P Hoyos, R Schultze-Kraft, M C. Amexquita
IGC Proceedings (1977-2023)
Previous experience of test animals has been mentioned as a factor which may affect grazing preference of cattle. Palatability trials have usually been conducted without allowing animals to previously graze individual forage species under evaluation. A cafeteria trial was designed to study the effect of previous grazing of individual species in the palatability ranking of six tropical legumes. Results indicated that short-term previous experience of the test animals affected the magnitude of the palatability index of the most palatable legume on the first days of the trial, but did not affect the overall palatability ranking of species. Therefore, it would …
Effects Of Frequency And Height Of Defoliation On Forage Yield And Crude Protein Content Of Flemingia Macrophylla (Flemingia),
2025
University of Science and Technology, Ghana
Effects Of Frequency And Height Of Defoliation On Forage Yield And Crude Protein Content Of Flemingia Macrophylla (Flemingia), E O. Asare
IGC Proceedings (1977-2023)
Defoliation studies were conducted over a period of 3 years on the same stands to determine the effects of 3 heights 5, 20 and 35cm and 3 intervals, 8, 12 and 14 weeks of cutting on leaf dry matter (DM) yield and nutritive value of Flemingia macrophylla (Flemingia) a potential fodder shrub. Both height and interval of cutting had significant effect on leaf DM yield. There was significant interaction between frequency and height of cutting. Leaf DM yield decreased with lowering of cutting height and increased through increasing interval between cuts. The 14-week cutting interval and 35cm cutting height treatment …
Growth Of Tropical Grasses Under Different Temperatures: Pearl Millet X Napiergrass Interspecific Hybrids,
2025
The Volcani Center
Growth Of Tropical Grasses Under Different Temperatures: Pearl Millet X Napiergrass Interspecific Hybrids, T Kipnis, I Granot, A Dovrat
IGC Proceedings (1977-2023)
Irrigated perennial grasses of tropical origin are important fodder crops in Israel (32°N). However, in contrast to the tropics, hot bright summers alterate with cool winters in Mediterranean regions, and, during the growing season, the diurnal temperature variation is about 13°C. A study to investigate the growth of tropical pearl millet x napiergrass interspecific hybrids in a Mediterranean environment was undertaken. The response to temperature was studied in a phytotron under conditions of high solar radiation. The plants were grown under various temperature combinations ranging from 17/12 to 32/27°C (day/night), and from a constant temperature regime up to a diurnal …
