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Articles 2191 - 2220 of 302419

Full-Text Articles in Physical Sciences and Mathematics

Effects Of Grazing Damage On White Clover Stolon Morphology, J R. Caradus, D F. Chapman Jun 2024

Effects Of Grazing Damage On White Clover Stolon Morphology, J R. Caradus, D F. Chapman

IGC Proceedings (1993-2023)

In two trials the effect of white clover stolon growing point removal due to grazing damage by sheep on stolon growth and morphology was investigated. Damage to the main stolon growing point did not affect stolon branch appearance rate, so that with a reduced node appearance rate on main stolons there was an increased proportion of nodes branching on damaged stolons. Compensatory growth by branch stolons after main stolon growing point removal occurred when measured as stolon elongation rate.

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Carbohydrate Reserves Of Perennial Grasses: Effect Of Drought And Defoliation Intensity, S P. Boschma, M J. Hill, J M. Scott, J J. Lutton Jun 2024

Carbohydrate Reserves Of Perennial Grasses: Effect Of Drought And Defoliation Intensity, S P. Boschma, M J. Hill, J M. Scott, J J. Lutton

IGC Proceedings (1993-2023)

The carbohydrate reserves of six perennial grasses were measured during exposure to drought and defoliation over spring-summer and summer-autumn seasons. Of the six species assessed, tall fescue (Festuca arundinacea) and perennial ryegrass (Lolium perenne) had the highest level of reserves while wallaby grass (Danthonia richardsonii) had the lowest levels. The results indicate that during the spring-summer period drought intensity had a greater effect on plant reserves than defoliation intensity. However, defoliation had a greater effect on reserves during the summer-autumn period. It is suggested that tiller reserves may be most affected when drought is …

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Development And Fate Of Seedlings Of Three Temperate Legumes Following Oversowing, M H. Awan, P D. Kemp, D J. Barker, M A. Choudhary Jun 2024

Development And Fate Of Seedlings Of Three Temperate Legumes Following Oversowing, M H. Awan, P D. Kemp, D J. Barker, M A. Choudhary

IGC Proceedings (1993-2023)

Oversown seeds of subterranean clover (Trifolium subterraneum L.), strawberry clover (T. fragiferum L.) and caucasian clover (T. ambiguum Bieb.) were monitored for 40 days to identify the stage of development at which the seed of these temperate pasture legumes failed at varying moisture levels. Intact sods of glyphosate-sprayed pasture were taken to a glasshouse, subjected to factorial combination of three soil surface moisture levels (low, medium, high) and three legume species. Overall, 70, 52 and 31% of seed of subterranean, strawberry and caucasian clovers,respectively, produced a visible radicle or seedling. The greatest loss of potential seedlings occured following …

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Effects Of Nitrogen Fertilizer On The Growth Of Ryegrass With Different Tolerances To Pulling, E R. Thom, V T. Van Vught, R J. Mccabe, C D. Waugh, B.J L. Koch, H L. Lagoda Jun 2024

Effects Of Nitrogen Fertilizer On The Growth Of Ryegrass With Different Tolerances To Pulling, E R. Thom, V T. Van Vught, R J. Mccabe, C D. Waugh, B.J L. Koch, H L. Lagoda

IGC Proceedings (1993-2023)

Plots of high endophyte pipeline ryegrass (Lolium perenne L.) lines, coded A1 and A3, were established on the Dairying Research Corporation No 2 Dairy in May, 1994. Three plots of each line were drilled on a silt loam and three on a peaty silt loam soil. Half the area of each plot received nitrogen (N) fertiliser (30 kg N/ha) following grazings from September, 1995 to February, 1996. Line A1 consistently pulled more than did A3 and pulling was worse on the peat. N fertiliser increased post-flowering tillering especially for A1. Line A1 had a higher leaf shear strength (6.21 …

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Principles Of Tree Management In The Grazing Lands Of Queensland, Australia, J C. Scanlan, E J. Turner Jun 2024

Principles Of Tree Management In The Grazing Lands Of Queensland, Australia, J C. Scanlan, E J. Turner

IGC Proceedings (1993-2023)

The key factors that influenced the appropriateness of clearing were identified for Queensland. The first stage was to identify endangered and vulnerable vegetation types, with final agreement being that clearing would not be undertaken in these regional ecosystem types. For other regional ecosystems, the degree of clearing that was appropriate was determined from the original and current extent of that ecosystem type, the sustainability of any development and any off-site effects of clearing. The maximum slope suitable for clearing, the width of riparian buffers and other corridors were also determined. These local guidelines for tree clearing became a central part …

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Influence Of Five Cutting Frequencies On The Production Of Medicago Sativa Cultivars In The Boland Of South Africa, T Oberholzer, J M. Van Heerden Jun 2024

Influence Of Five Cutting Frequencies On The Production Of Medicago Sativa Cultivars In The Boland Of South Africa, T Oberholzer, J M. Van Heerden

IGC Proceedings (1993-2023)

The use of fixed interval cutting management for lucerne was studied for four cultivars (CUF101, Condor, SA Standard and Alfagraze) of four dormancy classes. Five fixed cutting intervals ranging from two to ten weeks were imposed for three years on irrigated stands at Elsenburg Research Station in the Boland of South Africa. The experimental design was a 4 by 5 split-plot randomised block with three replications. The four main plots were four cultivars split into five subplots containing five cutting treatments. The more winter dormant cultivar, Alfagraze, was least sensitive to cutting frequency and relatively more productive than the other …

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Tiller Dynamic Of Dwarf Elephantgrass (Pennisetum Purpureum Cv. Mott) Under Defoliation, T Clavero Jun 2024

Tiller Dynamic Of Dwarf Elephantgrass (Pennisetum Purpureum Cv. Mott) Under Defoliation, T Clavero

IGC Proceedings (1993-2023)

A field study was conducted at the Animal Production Research Center of the University of Zulia, Venezuela. The objective of this experiment was to evaluate the tiller dynamic of dwarf elephantgrass (Pennisetum purpureum cv. Mott) under three cutting frequencies (CF) 28, 42 and 56 days and three cutting heights (CH) 10, 20 and 40 cm in order to estimate basal (BT), aerial (AT) and dead tillers (DT). The experiment was laid out as a split-plot trial with three replications. The number of basal tillers increased as CF was shortened and CH was increased. The intensity of defoliation independent of CF …

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Animal Productivity And Dynamics Of Native Pastures Improved With Oversown Legumes In Uruguay, D F. Risso, E J. Berretta Jun 2024

Animal Productivity And Dynamics Of Native Pastures Improved With Oversown Legumes In Uruguay, D F. Risso, E J. Berretta

IGC Proceedings (1993-2023)

Natural pastures in large areas of Uruguay can be improved by fertilization with phosphorus (P) and surface sowing of adapted legumes, promoting an increased forage production and quality, with the consequent higher carrying capacity and better animal performance. A study was conducted to evaluate two improved grasslands with two stocking rates under rotational grazing. Such improvements resulted from the oversowing of: 1) white clover (Trifolium repens) plus birdsfoot trefoil (Lotus corniculatus); and 2) annual lotus (Lotus subbiflorus). In these pastures, with important presence of legumes, a higher frequency of C3 and winter species, high levels …

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Emergence Of Small And Large Seeded Grasses: Importance Of Shoot Strength, M Andrews, M E. Andrews, C Watson, S M. Percival Jun 2024

Emergence Of Small And Large Seeded Grasses: Importance Of Shoot Strength, M Andrews, M E. Andrews, C Watson, S M. Percival

IGC Proceedings (1993-2023)

Inter-specific relationships between mean seed weight (MSW), coleoptile and mesocotyl length and width, shoot strength and emergence from 15 mm sowing depth were examined for six temperate pasture grass species ranging in MSW from 0.34 - 10.4 mg. For all species, coleoptile + mesocotyl length was greater for emerged than non-emerged seedlings. Across species, emergence % was not significantly correlated with coleoptile + mesocotyl length but it was significantly correlated with mean seed weight and coleoptile and mesocotyl width. Shoot strength increased with increased coleoptile width. It is proposed that decreased emergence % with decreased seed weight across species at …

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Yield And Quality Of Cereal And Cereal-Pea Companion Crops And Their Effect On Alfalfa Establishment, J E. Johnston Jun 2024

Yield And Quality Of Cereal And Cereal-Pea Companion Crops And Their Effect On Alfalfa Establishment, J E. Johnston

IGC Proceedings (1993-2023)

This study was carried out to determine the effect of management practices (harvest maturity, cereal species, mixtures with field peas (Pisum sativum)) on the yield and quality of cereal companion crops harvested for forage and the impact of those practices on subsequent alfalfa (Medicago sativa) yields. Replicated factorial experiments were conducted at three locations in northern Ontario from 1993 to 1995. Companion crop forage yields were increased and quality decreased by harvesting as the heads emerged as compared to the late boot stage. Triticale (X Triticosecale) was lower yielding than either oats (Avena sativa) …

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The Effect Of Different Oversown Legume Species And Row Spacings Upon The Production Of Degraded Cultivated Pastures, M R. Colabelli, A Mazzanti Jun 2024

The Effect Of Different Oversown Legume Species And Row Spacings Upon The Production Of Degraded Cultivated Pastures, M R. Colabelli, A Mazzanti

IGC Proceedings (1993-2023)

The establishment and growth of three leguminous plants Medicago sativa (A), Trifolium pratense (TR) and Lotus corniculatus (LC) was analysed. They were oversown on three different row spacings (10, 20 y 40 cm) on September 12, 1994. Density was estimated by marking and sequential counting of seedlings. Growth was estimated from Leaf Area Index (LAI) and from forage accumulation per area unit on three dates: D1 = 26/01/95; D2 = 11/04/95; D3 = 5/12/95. Total forage accumulation was higher (p<0.05) for the treatments oversown with TR in D1 at the smaller distances (average from 10 and 20 cm, 4130 kg DM/ha, 46% higher than treatment control (C); all the other treatments did not differ from C). In D2 there were no differences between treatments (average 1995 kg DM/ha); in D3 there were no differences among the oversown treatments (average 2498 kg DM/ha) and forage accumulation was 59% higher than C. There was no difference in seedling density between oversown legumes A and TR but both were higher (p<0.05) than that of LC. The relationship between the LAI of the oversown legume and that of the vegetation present was higher (p<0.05) for TR than for the rest of the treatments: D1, TR=1.43, A=0.21, LC=0.1; D2, TR=1.62, A=0.31, LC=0.2 and D3, TR=1.91, A=0.86, LC=1.05 . It is concluded that it is feasible to increase yield and modify botanical composition of degraded pastures by oversowing legumes.

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Seasonal Changes In Photosynthetic Rate Of 6 Panicum Genotypes, Q S. Cai, Y Ishii, K Ito Jun 2024

Seasonal Changes In Photosynthetic Rate Of 6 Panicum Genotypes, Q S. Cai, Y Ishii, K Ito

IGC Proceedings (1993-2023)

Three varieties each in Panicum maximum (PM) and P. coloratum (PC) were measured for the seasonal changes in the gas exchange rate in the field at Miyazaki, Japan. The gross photosynthetic rate (Pg) under the same photosynthetic active radiation (PAR) of 1000 μmol m-2s-1 and the dark respiratory rate (Rd) of leaf blade under the mean environmental air temperature on the measuring day differed among six varieties from autumn to the next spring. With the decrease in air temperature, the Pg and the Rd in the varieties of PM (typically, coldsensitive Natsukaze (NAT)) declined more rapidly than those of PC …

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Relation Between Growth In Summer And The Overwintering Ability In Hybrid Pennisetum And Napiergrass Genotypes, Y Ishii, K Ito, S Shinohara Jun 2024

Relation Between Growth In Summer And The Overwintering Ability In Hybrid Pennisetum And Napiergrass Genotypes, Y Ishii, K Ito, S Shinohara

IGC Proceedings (1993-2023)

The growth in summer and the overwintering ability of interspecific hybrid (Hy) between pearl millet (Pennisetum glaucum) and napiergrass (P. purpureum) was compared with those of two napiergrass varieties, i.e. Wruk Wona (Wr) and Merkeron (Me) in the field. The Hy had smaller dry matter yield (DMY) and mean tiller weight with higher tiller number and in vitro dry matter digestibility (IVDMD) than Wr and Me at the end of July, but DMY and IVDMD were not significantly different among genotypes in November. Regrown percentage of plants, number and dry weight of regrown tillers after overwintering were the …

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Moisture Stress In Hill Country Pastures Of New Zealand, I Valentine Jun 2024

Moisture Stress In Hill Country Pastures Of New Zealand, I Valentine

IGC Proceedings (1993-2023)

Moisture stress is a recognised factor in the persistence of desirable pasture species of naturalised hill country pastures of New Zealand. Two variables in a soil water balance model are examined here for their contribution to maintaining plant cover. Soil water infiltration is not a limiting factor even though these hill country soils will respond to lime and this response is believed to be due to its effect on the physical properties of the soil. However, the effect of microtopography and wind direction does reduce soil water input.

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Effect Of Nitrogen Input On Performance Of A Sodseeded Temperature Legume-Grass Mixture, M W. Alison Jun 2024

Effect Of Nitrogen Input On Performance Of A Sodseeded Temperature Legume-Grass Mixture, M W. Alison

IGC Proceedings (1993-2023)

The objective of this study was to determine the effect of N application rate and timing on forage production when an annual ryegrass (Lolium multiflorum Lam.) and red clover (Trifolium pratense L.) mixture is overseeded on a warm-season grass sward. Nitrogen was applied soon after planting in the fall at rates of 0, 38, 76 and 114 kg ha-1 and in late February at 0, 56 and 112 kg ha-1. Fall and winter N rates were included in a 4 x 3 factorial arrangement. Forage production was measured monthly from February through June and botanical composition was determined …

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Understanding Growth Dynamics Of Rangeland Species Under Unlimited Water And Rainfed Conditions, K L. Shropshire, J W. Stuth Jun 2024

Understanding Growth Dynamics Of Rangeland Species Under Unlimited Water And Rainfed Conditions, K L. Shropshire, J W. Stuth

IGC Proceedings (1993-2023)

This experiment was conducted to determine the maximum potential yield of native plant species when maintained in an unlimited water and natural rainfed environments to support the PHYGROW forage production model. Samples of the dominant rangeland plant species found in Central Texas were collected eight times during a 365 day period in 1995-96. Weight per unit basal area, and canopy area increased significantly throughout the growing season in bunchgrasses and sod/rhizomatous grasses, respectively, in water unlimited plots. Individual plant weight of forbs increased with irrigation, although it was only significant for the legume, Texas Bluebonnet. Woody plants exhibited little response …

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Effects Of Seasonal Cutting Regimes On The Dm Yield Of Temperate Pastures. Ii. Response To Frequency Of Defoliation Of A Five-Year Old Sown Pasture, E A. Moliterno, R A. Zanoniani Jun 2024

Effects Of Seasonal Cutting Regimes On The Dm Yield Of Temperate Pastures. Ii. Response To Frequency Of Defoliation Of A Five-Year Old Sown Pasture, E A. Moliterno, R A. Zanoniani

IGC Proceedings (1993-2023)

The effects of three frequencies (15; 30 and 45 days) of defoliation were assessed on a five-year-old temperate pasture composed of tall fescue (Festuca arundinacea Schreb.), white clover (Trifolium repens L.) and birdsfoot trefoil (Lotus corniculatus). Total annual DM yield showed a significant lower production for the most frequent defoliation management, 30 and 45 days frequency treatments averaging 32% more forage production with no statistical difference between them. Spring was the only season in which the more lenient defoliation significantly outyielded the 15- day interval treatment, which made up for the annual difference recorded. Through the …

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Effects Of Seasonal Cutting Regimes On The Dm Yield Of Temperate Pastures. I. Response Of A Second-Year Sown Pasture, E A. Moliterno, R A. Zanoniani, C Tafernaberry Jun 2024

Effects Of Seasonal Cutting Regimes On The Dm Yield Of Temperate Pastures. I. Response Of A Second-Year Sown Pasture, E A. Moliterno, R A. Zanoniani, C Tafernaberry

IGC Proceedings (1993-2023)

The effects of combined frequencies and intensities of defoliation were assessed through different sward heights at cutting time and residual stubble heights on a second-year temperate pasture composed of tall fescue (Festuca arundinacea Schreb.), white clover (Trifolium repens L.) and birdsfoot trefoil (Lotus corniculatus). Frequencies of defoliation could only be evaluated in autumn and winter since soil water deficit became especially critical in spring and summer. Main differences in yield within seasons were due to a combination of the intensity of defoliation at which the particular treatment was managed and that of the previous season. …

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Sward Structure Change And Production Increases Following Spring Grazing Management, A Hernandez Garay, J Hodgson, C Matthew Jun 2024

Sward Structure Change And Production Increases Following Spring Grazing Management, A Hernandez Garay, J Hodgson, C Matthew

IGC Proceedings (1993-2023)

The objective of this experiment was to study sward structure effects on production of perennial ryegrass-white clover swards with and without white clover following lax spring grazing periods of different duration. Two periods of 6 (short release - SR) and 12 (long release - LR -) weeks of lax grazing were compared against a conventional hard grazing throughout (early control - EC). Treatments were arranged in a factorial design with 3 replicates. Changes in sward structure were reflected in herbage production before (spring) and after the control period (summer-autumn). During spring, herbage mass was increased as a consequence of an …

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Effects Of Cutting Height On Yield And Quality Of Five Napier Cultivars, S T. Jorgensen, S Tudsri, A Pookpakdi, O Stolen Jun 2024

Effects Of Cutting Height On Yield And Quality Of Five Napier Cultivars, S T. Jorgensen, S Tudsri, A Pookpakdi, O Stolen

IGC Proceedings (1993-2023)

Results of this experiment revealed that dry matter yield of five Napier grass species increased with higher stubble and that a delay in closing date had produced a negative effect on regrowth for the following season, especially, when low cutting height had been imposed. The nitrogen and phosphorus percentage in leaf and stem materials were not affected by cutting height. Potassium percentage and NDF% were lower for herbage with 0 cm cutting height compared to 30 cm cutting. Among the different cutting intensities, 20 cm and 30 cm cutting height can be recommended through the growing season.

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Effects Of Grazing And Mowing On Leymus Chinensis Grassland In The Songnen Plain Of Northeastern China, R Z. Wang, E A. Ripley Jun 2024

Effects Of Grazing And Mowing On Leymus Chinensis Grassland In The Songnen Plain Of Northeastern China, R Z. Wang, E A. Ripley

IGC Proceedings (1993-2023)

Effects of mowing and grazing on a Leymus chinensis grassland in the Songnen plain of northeastern China were studied using eight replicates of four grazing and mowing treatments. Canopy cover and biomass of the dominant species (L. chinensis) were lower, and cover of the halophyte Suaeda corniculata higher, on grazed than ungrazed; ungrazed plots showed a response to mowing, but not grazing; species diversity increased with grazing and mowing. This study found dissimilar effects of grazing and mowing on plant populations, canopy biomass and structure in L. chinensis grassland. Possible interactions between the principal disturbances on the grassland are …

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Overgrazing Impact Upon Rangeland Ecosystems Of Kazakstan Deserts, K Karibayeva Jun 2024

Overgrazing Impact Upon Rangeland Ecosystems Of Kazakstan Deserts, K Karibayeva

IGC Proceedings (1993-2023)

Vegetation dynamics trends are studies in connection with natural and human-induced factors. Interrelation of rangeland ecosystems with climate and grazing type is revealed. Degression, demutation and dynamics regulation diagrams are given for different conditions of use. Some quantitative and qualitative criteria were elaborated for rangeland ecosystems assessment. Ecosystem degradation indicators were identified, methods were elaborated for making subject maps for environmental assessment and sustainable management of grasslands. A method of seasonal cartographic rangeland cadastre was elaborated by the example of Volga - Ural sands on the basis of the map (S. 1:500,000)

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Forage Quality Of 'Matua' Bromegrass (Bromus Wildenowii), L G. Brown, J K. King Jun 2024

Forage Quality Of 'Matua' Bromegrass (Bromus Wildenowii), L G. Brown, J K. King

IGC Proceedings (1993-2023)

Research on forage quality of ‘Matua’ prairiegrass (Bromus wildenowii) is limited in Kentucky. Due to hot summers, mild winters and a 200-day long growing season in Kentucky, quality as well as management practices may differ from those reported in research from other climates. The objective of this study was to evaluate the forage quality of cool-season grasses including Matua, grazing bromegrass (Bromus stamineus), smooth bromegrass (Bromus inermis), tall fescue (Festuca arundinacea) and orchardgrass (Dactylis glomerata). The experiment was conducted in the field and greenhouse. Four harvests were obtained from each. Quality analyses …

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Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi Jun 2024

Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi

IGC Proceedings (1993-2023)

Productivity of pasture consisting of both unimproved and improved areas was investigated in terms of conversion efficiency of solar energy into products and nutrient intake of animal. It was shown that animal production is mainly supported by the improved area in spring and late-autumn while the production is supported together by both areas in summer by reasons of increases in productivity of the unimproved area and productive depression in the improved area. CP/DE balance of grazed herbage was close to the requirement ofthe animal in the case where the unimproved area was grazed with the improved area rather than in …

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Grassland Productivity In The Indian Himalaya And Performance Of Introduced Temperate Forage Species In Cold And Semi-Arid Environment, J R. Sharma, A N. Ghosh Jun 2024

Grassland Productivity In The Indian Himalaya And Performance Of Introduced Temperate Forage Species In Cold And Semi-Arid Environment, J R. Sharma, A N. Ghosh

IGC Proceedings (1993-2023)

Grasslands in the Himalayan ranges, particularly in the middle altitudes, are over-exploited by both sedentary and nomadic flocks. No systematic studies have been made to assess the productivity and carrying capacity of these grasslands so that suitable improvement measures could be adopted. A study conducted in the Shimla district of Himachal Pradesh (HP) at 2092, 2400 and 2895 meters above mean sea level (amsl) and varying soil conditions, showed that protection alone increased dry matter production between 9 and 188% over a three year period and average production in the third year from lower to higher altitude grasslands was 101.1, …

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Perception Of Rangeland By Herders In Northern Cameroon, E Tedonkeng Pamo, P Scholte Jun 2024

Perception Of Rangeland By Herders In Northern Cameroon, E Tedonkeng Pamo, P Scholte

IGC Proceedings (1993-2023)

Range scientists have always had the mistaken idea that herders cannot appraise, characterize or assess the state of their rangeland or range resource. From observations made in northern Cameroon, it appears that herders know the pastoral environment in which they operate probably better than many range scientists. They do not seem to have a good idea on range trends. However, from their pattern of range utilization over time it is possible to have an assessment of the state and trend of rangeland. A wide range of information on the pastoral knowledge of rangeland is needed to develop a sustained range …

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Nutrient Content Of Saskatchewan Native Range Plants, Zoheir Abouguendia Jun 2024

Nutrient Content Of Saskatchewan Native Range Plants, Zoheir Abouguendia

IGC Proceedings (1993-2023)

This study reports on the nutrient content and digestibility of five cool-season grasses common in the Mixed-Prairie Ecoregion of Saskatchewan, Canada: (1) green needlegrass (Stipa viridula Trin.); (2) needle-and-thread (Stipa comata Trin & Rupr.); (3) western porcupinegrass (Stipa curtiseta (Hitchc.) Backworth); (4) northern wheatgrass (Agropyron dasystachyum (Hook.) Scribn.); and (5) western wheatgrass (Agropyron smithii Rydb.). Plant material was collected monthly and analyzed for invitro organic matter digestibility ( IVOMD), crude protein (CP), P, Ca, ADF and NDF. All species showed similar intra-seasonal pattern in the various parameters studied and no species x month interactions were …

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Negative Hypergeometric Series And Taylor's Power Law In Occurrence Of Plant Populations In Semi-Natural Grassland In Japan, M Shiyomi, T Egawa, Y Yamamoto Jun 2024

Negative Hypergeometric Series And Taylor's Power Law In Occurrence Of Plant Populations In Semi-Natural Grassland In Japan, M Shiyomi, T Egawa, Y Yamamoto

IGC Proceedings (1993-2023)

Attempts were made to determine whether the spatial distribution of the plant species composing vegetation of a semi-natural grassland is heterogeneous, using negative hypergeometric series (NHG) and Taylor’s power law (TPL). The occurrence of each species was observed, in an area of the grasslands, using 100 quadrats with a size of 50 cm x 50 cm, each of which was divided into 4 small quadrats with an area of 25 cm x 25 cm. For all species dominating in the grassland, good fits to the NHG and TPL were obtained. Species which grow stolons, rhizomes and tillers for propagation such …

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Recultivation And Revitalization Of Karst's Regions With Sheep And Goats As A Tool, M Pogacnik, P Juntes, D Kompan, T Vidrih, M Kotar Jun 2024

Recultivation And Revitalization Of Karst's Regions With Sheep And Goats As A Tool, M Pogacnik, P Juntes, D Kompan, T Vidrih, M Kotar

IGC Proceedings (1993-2023)

The main goal of our project is to revitalize abandoned karstic regions on the principles of silvopastoral systems based on traditional husbandry of goats and sheep and by causing minimal disturbances to the nature. Results of our two year experiment show positive effects on land cleaning and quantity and quality of the turf. However, restriction of animals to a fenced area, where the feed is of a lesser quality also has negative effects on the animals.

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Introduction Of White Clover In Native Grasslands Of Bhutan-Impact, Potential, And Problems, W Roder, K Wangdi, P Gyamtsho Jun 2024

Introduction Of White Clover In Native Grasslands Of Bhutan-Impact, Potential, And Problems, W Roder, K Wangdi, P Gyamtsho

IGC Proceedings (1993-2023)

Important genera of native grass species common to the grasslands of Bhutan include: Schizachyrium, Arundinella, Agropyron, Agrostis, Bromus, and Helictorichon. White clover was first introduced to the country in 1970. White clover introduction and application of P increased dry matter production of native grasslands from <2 t ha-1 to >10 t ha-1. In the elevation range ,2000-3500 m white clover is the best fodder species for improving existing grassland. Fast expansion of the species through adoption by farmers spreading by grazing animals has caused some panic and demands for a reassessment of its potential.

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