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Articles 12061 - 12090 of 291668

Full-Text Articles in Physical Sciences and Mathematics

Utilisation Sylvopastorale De L'Espinal (Acacia Caven) Dans L'Aire Climatique Mediterraneenne Du Chili. Influence De L'Arbre Sur La Vegetation Pastorale, C Ovalle, J Avendano Jun 2025

Utilisation Sylvopastorale De L'Espinal (Acacia Caven) Dans L'Aire Climatique Mediterraneenne Du Chili. Influence De L'Arbre Sur La Vegetation Pastorale, C Ovalle, J Avendano

IGC Proceedings (1977-2023)

L'espinal constitue d'une strate ligneuse dominee par l'arbre autochtone, Acacia caven, et d'une strate herbacee dominee par ��es therophytes d'origine circummediterraneenne, est la forma­tion vegetale pastorale d'importance economique majeure du Chili mediterraneen. L'amelioration pastorale de l'espinal, du fait de la presence simultanee des deux strates de vegetation, se heurte toujours a la question de la place, de !'utilisation ou du role d' Acacia caven par rapport a la strate herbacee dans le systeme ecologique complexe. Une premiere partie des resultats sur !'influence de l'arbre a ete presentee par Ovalle (1986) et Ovalle et Aven­dano (1987). Cette contribution ajoute des resultats …

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Grazing Pressure By Sheep: Consequences For Pasture Stability In An Australian Mulga Woodland, K C. Hodgkinson, J W. Terpstra Jun 2025

Grazing Pressure By Sheep: Consequences For Pasture Stability In An Australian Mulga Woodland, K C. Hodgkinson, J W. Terpstra

IGC Proceedings (1977-2023)

The mulga woodlands are an extensive (1.6 km2) native pas­ture type in semi-arid and arid Australia and mainly utilised for wool production (merino sheep). The dominant shrub/treee species is mulga (Acacia aneura) which usually occurs in groves across slopes. Pastures comprise perennial grasses and ephem­eral forbs. Continuous grazing by sheep and cattle and fire suppression has led to widespread degradation of these pastures; perennial grasses have diminished in abundance and been replaced by ephemeral forbs and inedible shrubs. This paper reports the grazing pressure on Thryridolepis mit­chelliana (a perennial grass ubiquitous in mulga woodlands but commonly diminished in abundance) …

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Buried Viable Seeds In The Alberta Foothills Under High Intensity Low Frequency Grazing And The Resemblance To Seed Rain, R Lagroix-Mclean, Jane R. King Jun 2025

Buried Viable Seeds In The Alberta Foothills Under High Intensity Low Frequency Grazing And The Resemblance To Seed Rain, R Lagroix-Mclean, Jane R. King

IGC Proceedings (1977-2023)

Sudies describing seed banks and seed rain on native rangelands are few in number although it is recognized that there is an abundance of viable seed within the soil (Rabinowitz, 1981; Johnston et al., 1969). The seed bank and seed rain represent an integral part of the potential for recruit­ment or regeneration of species into the sward (Rabinowitz, 1981). The role of seed banks in succession is yet to be com­pletely understood. Field experiments were conducted to describe seed bank and seed rain on a Canadian native prairie and to evaluate the impact of high intensity low frequency graz­ing on …

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The Structure Of The Grass/Clover Sward And Its Implications In Sward Management, Alison Davies Jun 2025

The Structure Of The Grass/Clover Sward And Its Implications In Sward Management, Alison Davies

IGC Proceedings (1977-2023)

In attempting to formulate management rules for perennial ryegrass/white clover pastures it is important to try to dis­tinguish between changes in clover content which result from management, and those which result from the different responses of grass and clover to the changing environment. This paper discusses the similarities and differences between the response patterns of components of growth in grass and clover and attempts to show how the differences between the two species my be exploited to control the balance between them.

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Effets Du Pietinement Des Bovins Sur Le Trefle Blanc Pur Ou En Association, Francoise Vertes Jun 2025

Effets Du Pietinement Des Bovins Sur Le Trefle Blanc Pur Ou En Association, Francoise Vertes

IGC Proceedings (1977-2023)

Le pietinement des bovins en mauvaises conditions de por­tance, !ors du dernier paturage d'automne ou de la mise a l'herbe au printemps, etant le principal facteur de deterioration de la structure des sols (Lauden, 1986), nous en avons etudie Jes effets sur Jes plantes et Jes sols, a l'echelle stationnelle, en Breta­gne. Une double demarche analytique et synthetique permet de quantifier a court et moyen terme Jes consequences directes et indirectes du pietinement (Morion,. 1983). Une premiere experimentation (1987) concerne un pietine­ment de printemps, plus ou moins intense; la deuxieme (1987-1988) integre Jes effets d'un pietinement d'hiver, cumule ou non …

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Changes Under Sheep Grazing In The Species Composition Of Sown Pastures With Special Reference To White Clover, J Gajda, M Warda, J Sawicki, Anna Kotakowska Jun 2025

Changes Under Sheep Grazing In The Species Composition Of Sown Pastures With Special Reference To White Clover, J Gajda, M Warda, J Sawicki, Anna Kotakowska

IGC Proceedings (1977-2023)

White clover is a valuable component of pasture (Thomson, 1978). The level of nitrogen fertilization and the method of pas­ture utilization (Mackenzie, 1982), as well as habitat conditions (Lenoble, 1975) have a decided effect upon the persistence of this species in the sward. However, the stability of white clover in the sward is a complex problem and further studies are required. This paper records changes in the species composition of pasture sward caused by sheep grazing with special reference to white clover.

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Variation With Season And Node Position In Carbohydrate Content Of White Clover Stolons, M.J M. Hay, A.C P. Chu, M V. Knighton, S Wewala Jun 2025

Variation With Season And Node Position In Carbohydrate Content Of White Clover Stolons, M.J M. Hay, A.C P. Chu, M V. Knighton, S Wewala

IGC Proceedings (1977-2023)

Storage of carbohydrate in stolon of field-grown white clover (Trifolium repens L.) is important as up to 60 % of dry matter is in stolons and their carbohydrate content is high relative to roots (Harris et al., 1983). Previously no account has been taken of node position when the carbohydrate status of stolons has been assessed. Most field-grown white clover is clonal, with older nodes continually dying as new nodes are formed, hence the pattern of carbohydrate storage of individual nodes may differ. The objectives of this study were to determine the carbo­hydrate status of individual nodes at different …

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Simulation Of The Effect Of Stolon Death Rates On Branching Structure Of White Clover Plants, V J. Thomas, M.J M. Hay, P.C D. Newton Jun 2025

Simulation Of The Effect Of Stolon Death Rates On Branching Structure Of White Clover Plants, V J. Thomas, M.J M. Hay, P.C D. Newton

IGC Proceedings (1977-2023)

Simulation is a technique whose value is greatest in two areas. The first of these involves the discipline of examining the system being modelled, and, as a result, being forced to obtain accurate information on the parameters which significantly influence the system. The second area involves estimating the effect of changes in system parameters, and from this establish­ing which factors have substantial effects on the output vari­ables considered. In the model of white clover growth considered here a con­siderable number of input parameters were used. These parameters were derived from data of variable reliability. In particular, the death rate data …

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Grazing Management Effects On Perennial Ryegrass And White Clover Triller Populations, W F. Hunt Jun 2025

Grazing Management Effects On Perennial Ryegrass And White Clover Triller Populations, W F. Hunt

IGC Proceedings (1977-2023)

Pasture grazing managements have clearly identifiable effects on plant morphology, density and species composition. Typ­ically, swards grazed continuously by sheep have relatively high populations of relatively small perennial ryegrass tillers while rotationally grazed swards contain rather fewer large/ tillers (Chapman and Clark 1984, Suckling 1959, Mitchelle and Glen­day 1958, Collet et al., 1981). Generally, more severe defoli­ations are associated with greater tiller densities (Davies 1977). Management induced increases in tiller populations of per­ennial pastures are possible because plants tiller freely when competition for light is reduced by herbage removal (Hunt and Field 1978). If left undisturbed, tiller density is finally …

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Manipulating The Plastic Response Of White Clover Through Grazing, In A Cool, Temperate Climate In New Zealand, R.J M. Hay, G S. Baxter Jun 2025

Manipulating The Plastic Response Of White Clover Through Grazing, In A Cool, Temperate Climate In New Zealand, R.J M. Hay, G S. Baxter

IGC Proceedings (1977-2023)

In Southland, New Zealand, a wide range of grazing systems are practised, from continuous set-stocking to year round rot­ational grazing. A problem is the apparent decline in contri­bution of white clover (Trifolium repens L.) to total sward pro­duction in older pastures. Cereal and brassica crops, which depleted soil N, were traditionally sown each year and used to ensure that about 20 % of any farm consisted of clover-domi­nant two and three year old pastures. Carran (pers. comm.) suggests that all-grass-farming has removed the N-deficit incentive for clover growth. Farmlet tri­als at the Gore Regional Station, DSIR, have shown that …

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Characteristics Of Individual White Clover Plants In Grazed Swards, M J.M Hay, J L. Brock, V J. Thomas Jun 2025

Characteristics Of Individual White Clover Plants In Grazed Swards, M J.M Hay, J L. Brock, V J. Thomas

IGC Proceedings (1977-2023)

Compared to the large volume of agronomic research on white clover (Trifolium repens L.), studies on the growth and morphology of individual plants constituting the population under grazing are few (Brock et al., 1988). Increased knowledge of the clonal growth and seasonal behaviour of individual white clover plants is seen as essential (Snaydon, 1985) if the mechanisms governing persistence and productivity in mixed grazed swards are to be understood. Seasonal growth patterns of white clover vary with environment (Jones, 1982) and this paper describes seasonal variation in some characteristics of individual white clover plants in grazed swards in a temperate …

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The Influence Of Physical And Biochemical Characteristics Upon The Selection Of White Clover By Grazing Sheep, J Hodgson, D A. Clark, S Wewala Jun 2025

The Influence Of Physical And Biochemical Characteristics Upon The Selection Of White Clover By Grazing Sheep, J Hodgson, D A. Clark, S Wewala

IGC Proceedings (1977-2023)

Observations have been made on the reactions of sheep to variations in leaf mark (Cahn and Harper, 1976) and cyanogenic glucoside concentration (Corkill, 1952) in white clover (Trifolium repens L.), but little is known about the rela­tive importance of alternative visual and biochemical cues in selective behaviour under grazing conditions. This paper reports the results of two studies at DSIR Grasslands Division, Palmerston North, New Zealand on the reactions of grazing sheep to white clover plants exhibiting substantial genotypic variation in leaf size and colour, leaf mark, and cyanogenic glucoside potency.

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Interactions Between Parent Stolons And Branches In Assimilate Partitioning In White Clover (Trifolium Repens L.), D F. Chapman, M J. Robson, R W. Snaydon Jun 2025

Interactions Between Parent Stolons And Branches In Assimilate Partitioning In White Clover (Trifolium Repens L.), D F. Chapman, M J. Robson, R W. Snaydon

IGC Proceedings (1977-2023)

In temperate regions of the world, white clover (Trifolium repens L.) persists in permanent pastures by vegetative repro­duction (Chapman 1987). Thus stolon branching is vital for the perennation of the species. There is, however, no information available on physiological relationships between branches and parent stolons, or on the degree of physiological integration of whole clover plants. Clover spreads laterally by stolon exten­sion and in extremely heterogenous environments, like grazed pastures, parts of a single plant may encounter different levels of stress (defoliation, nutrient levels, shading). Physiological integration (eg. mutual exchange of carbohydrate between branches and parent stolon) may allow …

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The Effect Of Accumulated Herbage Mass In Winter And Spring On White Clover Development, A S. Laidlaw, J A. Withers Jun 2025

The Effect Of Accumulated Herbage Mass In Winter And Spring On White Clover Development, A S. Laidlaw, J A. Withers

IGC Proceedings (1977-2023)

Clover development in long term mixed swards is variable due to, among other factors, the complex interaction between grass and clover. A previous study has shown that grazing gras­s/clover swards with sheep for a short period during winter/spring may result in higher clover content and clover drymatter yield in summer than in swards ungrazed during winter/spring, while nitrogen fertilizer has the reverse effect (Laidlaw and Steward 1987). It was concluded that these treatments, by varying the amount of herbage accumulated in spring, controlled the amount of light passing to the base of the sward and so determined the rate of …

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Towards Developing A Model Of Persistence And Production For White Clover, M J. Hill, K A. Archer, K J. Hutchinson Jun 2025

Towards Developing A Model Of Persistence And Production For White Clover, M J. Hill, K A. Archer, K J. Hutchinson

IGC Proceedings (1977-2023)

The development of a model which successfully simulates the response of white clover Trifolium repens L. to environmental variables affecting persistance would be of great value for defining critical limiting processes. In Australia, persistence is determined by the impact of climate, competition and grazing on the processes of generation, from seed or by stolons (Jones, 1980; Archer and Robinson, 1988). Here we outline a model of white clover persistence and production in eastern Australia. In Australia the four critical phases in the lifecycle of white clover where the environment can threaten persistence are : late autumn and winter when germination …

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Some Factors Causing Temporal And Spatial Variation In White Clover Performance In Grazed Swards, S A. Grant, C A. Marriott Jun 2025

Some Factors Causing Temporal And Spatial Variation In White Clover Performance In Grazed Swards, S A. Grant, C A. Marriott

IGC Proceedings (1977-2023)

Stolon burial as a result of earthworm activity and poaching is common on many soil types in autumn and winter. The covering of soil is thought to protect against frost and thus be­nefit winter survival. On heavy soils in wet conditions treading can result in stolon burial during the growing season (Grant et al., 1988). The extent to which burial at this time adversely affects clover is unknown. Urination by grazing animals depos­its the equivalent of 300-600 kg N/ha locally on the sward. Since the addition of fertiliser N to mixed grass-clover swards favours grass at the expense of clover, …

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The Growth Of White Clover (Trifolium Repens L.) In Field Swards In Wales. A Review., D Wilman Jun 2025

The Growth Of White Clover (Trifolium Repens L.) In Field Swards In Wales. A Review., D Wilman

IGC Proceedings (1977-2023)

The purpose of the paper is to review some studies of white clover (Trifolium repens L.) growth in field swards in Wales, which were supervised by the author in the period 1976-88. White clover is a valuable species, from the point of view of both nitrogen fixation and animal nutrition, but it is used successfully on only a small proportion of farms in the United Kingdom. Studies such as those reviewed should contribute to greater success in white clover use.

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Evaluation Of Mixed Pastures Including Trifolium Pratense Under Grazing, L A. Romero Jun 2025

Evaluation Of Mixed Pastures Including Trifolium Pratense Under Grazing, L A. Romero

IGC Proceedings (1977-2023)

The feeding system for milk and beef production in the Cen­tral Region of Santa Fe province (Argentine) is based on semi­permanent and seasonal pastures along with conserved forage. Generally, legumes and grasses mixtures are used, the more usual species being lucerne (Medicago sativa), red clover (Tri­folium pratense), prairie grass (Bromus catharticus), and also chicory (Cichorium intibus). These mixtures produce high amount of dry matter (DM) with a high nutritive value and an useful life span of three to five years. The objective of this research was to evaluate three mixed pastures with red clover …

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Regrowth Of The Components Of Two Legume/Grass Associations Following Grazing On Acid Soils Of The Eastern Plains Of Colombia, J Fischer, D Thomas Jun 2025

Regrowth Of The Components Of Two Legume/Grass Associations Following Grazing On Acid Soils Of The Eastern Plains Of Colombia, J Fischer, D Thomas

IGC Proceedings (1977-2023)

The low nutritive status of the neotropical savannas may be improved by using a forage legume, either to supplement the savanna, or as a component of a grass-legume pasture to replace it. The two stoloniferous legumes Arachis pintoi and Desmodium ovalifolium form promising associations with various species of Brachiaria (Grof, 1985; Thomas and Grof, 1986), but there are very few data on their reaction to grazing. The relation between growth rate and the amount of leaf material is central to understanding how systems of grazing management influence plant relations. Because the palatability of the two legumes above differ, under contrasting …

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Effects Of Sheep Grazing On Dry Matter Production And Persistence Of A Lucerne Crop, I Delgado Enguita Jun 2025

Effects Of Sheep Grazing On Dry Matter Production And Persistence Of A Lucerne Crop, I Delgado Enguita

IGC Proceedings (1977-2023)

In Spain, lucerne is mainly grown on irrigated areas for hay production and dehydration industry. The utilization of lucerne under grazing is very infrequent, due to the detrimental effects on both, animal health and plants persistence that have been attributed to it. However, lucerne dry matter (DM) pro­duction and quality in addition of being its cultivation more economical than grasses, offer interesting advantages to be used as a green forage (Delgado, 1984). New Zealand workers (Agronomy Society of New Zealand, 1982) have stressed that lucerne could be successfully managed under grazing when long resting periods were provided between short grazing …

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The Survival Of Seed Of Subterranean Clover Following Ingestion By Sheep, C T. De Koning, E D. Carter Jun 2025

The Survival Of Seed Of Subterranean Clover Following Ingestion By Sheep, C T. De Koning, E D. Carter

IGC Proceedings (1977-2023)

Shortage oflivestock feed is common in the summer-autumn period in the Mediterranean-type environment of southern Australia. There is a gradual decline of both quality and quan­tity of dry pasture residues and heavy grazing may severely deplete seed reserves. Carter (1981) showed how sheep pro­gressively eliminated medic pods and seeds from hard-setting soil. Pastures based on subterranean clover (Trifolium subterra­neum L.), hereafter referred to as sub clover, can also be severely depleted of seed reserves even though some seed is buried in the soil. While the survival of ingested seed has long been recognized as a means of spreading legumes …

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Effect Of Regrowth Interval Upon Canopy Structure And Utilization Of Aeschynomene-Limpograss Pastures, J E. Moore, L E. Sollenberger, K A. Albrecht, P T. Beede, W F. Brown Jun 2025

Effect Of Regrowth Interval Upon Canopy Structure And Utilization Of Aeschynomene-Limpograss Pastures, J E. Moore, L E. Sollenberger, K A. Albrecht, P T. Beede, W F. Brown

IGC Proceedings (1977-2023)

During mid-summer through early autumn, limpograss ( Hemarthria altissima) herbage may have crude protein con­centration below 7 %, and performance of growing cattle on limpograss pasture is often low (Sollenberger et al., 1988). Overseeding with Aeschynomene americana may improve for­ age intake and nutritive value. Deferred grazing of an aeschynomene-limpograss association has potential to provide high-quality forage into mid-autumn. Because grass and legume do not have similar growth rates, changes in canopy structure may occur during late season which influence forage utilization by grazing cattle. The objective was to compare plant canopy characteristics to diet composition and ingestive behavior of …

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Effects Of Variation In Seasonal Grazing Pressure And Mechanisms Of Adaptation To Grazing In Lotononis Bainesii, H Fujita, L R. Humphreys Jun 2025

Effects Of Variation In Seasonal Grazing Pressure And Mechanisms Of Adaptation To Grazing In Lotononis Bainesii, H Fujita, L R. Humphreys

IGC Proceedings (1977-2023)

Lotononis bainesii is valued for its ready acceptance by stock, high nutritive value and cold tolerance, but its utility has been limited by the inexplicably high year to year variation in its contribution to the farm feed supply. Pott et al. (1983) showed that lotononis is short-lived; the persistence of yield depends more upon seedling regeneration than upon vegetative replace­ment through nodal rooting. No continuous fixed stocking regime from 7 to 28 sheep ha-1 favoured lotononis (Poot and Humphreys, 1983), and this paper discusses the effects of vari­ations in seasonal stocking rate and of factors influencing the development of a …

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Response Of Perennial Vigna Species To Grazing On A Subtropical Spodosol, W D. Pitman Jun 2025

Response Of Perennial Vigna Species To Grazing On A Subtropical Spodosol, W D. Pitman

IGC Proceedings (1977-2023)

Evaluations of persistence of tropical legume accessions in single-row plantings in bahiagrass ( Paspalum notatum) pastures at Ona, Florida (27° 26' N latitude) have identified the perennial Vigna species, V. adenantha and V. parkeri cv. Shaw creeping vigna, as adapted plants with potential for pasture use (Pitman and Kretschmer, 1984; Pitman et al., 1988). Both of these species flower indeterminately and in response to decreas­ing day length. Thus, only small quantities of seed have been obtained each year prior to defoliation of plants by frost. Eval­uation of V. adenantha in small pastures has been facilitated by the …

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Dynamics Of A Tropical Grass-Legume Sward In The Subtropics And Its Effect On Animal Performance, M J. Williams, A C. Hammond, W T. Butts, W E. Kunkle Jun 2025

Dynamics Of A Tropical Grass-Legume Sward In The Subtropics And Its Effect On Animal Performance, M J. Williams, A C. Hammond, W T. Butts, W E. Kunkle

IGC Proceedings (1977-2023)

Rhizoma perennial peanut ( Arachis glabrata Benth.) is a for­age legume species adapted to the well-drained soils of subtropical United States (Prine et al., 1981). Management studies with perennial peanut have concentrated on hay pro­duction and animal performance based on pure stands (Prine, 1981 ; Sollenberger et al., 1987). Mixtures of perennial peanuts and various tropical grasses have performed well in small plot studies, but the interrelationship of grass and perennial peanuts under grazing and the consequence this relationship has on stand productivity and animal performance has not been investigated. The summer grazing phase of a backgrounding systems trial, which …

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Influence Of Winter Treading On Lucerne, R B. Wynn-Williams, M B. Rea, R G. Purves, B T. Hawthorne Jun 2025

Influence Of Winter Treading On Lucerne, R B. Wynn-Williams, M B. Rea, R G. Purves, B T. Hawthorne

IGC Proceedings (1977-2023)

Most lucerne (Medicago sativa L.) in New Zealand is grazed at some time during the year. In the growing season it is recommended that the grazing duration be short, 2-4 days, although it can be extended to 14 days without much effect. However during the dormant season, normally mid June to late July in Canterbury, using lucerne stands as a run-off or for feeding hay for extended periods has been recommended. Lobb (1967) showed that feeding hay to sheep on dormant lucerne significantly reduced perennial weed invasion especially on irri­gated stands. Throught and Kain (1977) showed that winter grazing …

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Rates Of Destruction Of Growing Points Of Pasture Legumes By Grazing Cattle, R J. Clements Jun 2025

Rates Of Destruction Of Growing Points Of Pasture Legumes By Grazing Cattle, R J. Clements

IGC Proceedings (1977-2023)

Twining tropical pasture legumes such as Siratro ( Macropti­lium atropurpureum) are unable to persist under sustained heavy grazing, whereas prost��ate legumes such as white clover (Trifolium repens) persist well. The reasons for this are not fully understood. Survival of individual Siratro plants is reduced by heavy grazing (Jones and Bunch, 1988). The destruction of growing points of erect legumes during grazing may reduce growth and weaken the plants. The effects of graz­ing pressure on the demography of growing points and on turn­over of plant tissue have been studied at this Laboratory since 1984. Some results are reviewed briefly …

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Response Of Stargrass To Grazing Management, P Mislevy, F G. Martin, B J. Downs, K L. Singer Jun 2025

Response Of Stargrass To Grazing Management, P Mislevy, F G. Martin, B J. Downs, K L. Singer

IGC Proceedings (1977-2023)

Grazing management as it relates to stubble height (SH) and plant height above the stubble (PH) is important in maintai­ning herbage in a juvenile stage while producing high forage yield and maintaining good species persistence (Adjei et al., 1980, Crowder, 1985). The purpose of this experiment was to determine the effect of grazing management treatments (SH and PH) on yield, quality and persistence of three stargrass cultivars. However, due to brevity, quality will not be presented in this paper.

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Seasonal Variation Of Cattle Daily Gain, Plant Characteristics And Solar Energy Conversion Efficiency In Grazing Pastures Of Dactylis Glomerata And Of Festuca Arundinacea, T Okubo, Y Kurokawa, M Hirakawa, K Matsui Jun 2025

Seasonal Variation Of Cattle Daily Gain, Plant Characteristics And Solar Energy Conversion Efficiency In Grazing Pastures Of Dactylis Glomerata And Of Festuca Arundinacea, T Okubo, Y Kurokawa, M Hirakawa, K Matsui

IGC Proceedings (1977-2023)

Herbage intake, digestibility and leafiness or bulk density are well known as the main factors affecting the performance of grazing animals. But even in case where these factors are not so different, daily gain still varies among seasons or individuals (Blaser et al., 1981). In order to solve these problems by modeling approach (Okubo & Jacquard, 1985), seasonal changes in plant production, daily gain of cattle live-weight and seasonal variations in solar energy conversion into cattle gain were measured, and the importance (Okubo et al., 1985) of gross efficiency of digestible energy to net energy was discussed.

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Effect Of Grazing Interval On Yield, Quality And Persistence Of Swazigrass (Digitaria Swazilandensis Stent) In Southern Ghana, A Larbi, M B. Adjei, F K. Fianu Jun 2025

Effect Of Grazing Interval On Yield, Quality And Persistence Of Swazigrass (Digitaria Swazilandensis Stent) In Southern Ghana, A Larbi, M B. Adjei, F K. Fianu

IGC Proceedings (1977-2023)

Swazigrass ( D. swazilandensis Stent) is a little known peren­nial grass introduced to Ghana from South Africa. It spreads rapidly, forms a low dense sward and grows well on poor soils (White et al., 1959; Bogdan, 1977). Therefore, it has a high potential for pasture improvement in the grassland regions of Ghana, which are dominated by grass species of low pro­ductivity, growing on soils deficient in nitrogen and phos­phorus (Nye and Bertheu.i-, 1957). Swazigrass compared favor­ably in yield and quality to most introduced and native species under cutting management (Nkrumah-Antiedu, 1981). Since cutting provides an imperfect guide to grazing, this …

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