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Improving Livestock Production Assuring Natural Grassland Ecosystem Conservation: Three Key Management Practices At Farm Level, Oscar Blumetto, Santiago Scarlato, Andrés Castagna, Guadalupe Tiscornia, Andrea Ruggia, Gerónimo Cardozo
Improving Livestock Production Assuring Natural Grassland Ecosystem Conservation: Three Key Management Practices At Farm Level, Oscar Blumetto, Santiago Scarlato, Andrés Castagna, Guadalupe Tiscornia, Andrea Ruggia, Gerónimo Cardozo
IGC Proceedings (1977-2023)
Ecosystem changes by human activities are a central topic in environmental discussions and temperate grasslands are among the most altered ecosystems on the planet (Millenium Ecosystem Assessment, 2005). The Rio de la Plata grasslands are among of the most extended temperate grasslands in the world, along with the prairie system of North America, the grasslands in east Europe and Mongolia, the grassvelds in South Africa and the New Zealand plains. They cover the central-eastern part of Argentina, Uruguay and south of Brazil. Natural grasslands are very rich in terms of number of species, reaching up to more than 3,000 vascular …
Assessment Of Animal Palatability For Domestic Developed Italian Ryegrass Lolium Multiflorum Lam. In South Korea, Jong-Geun Kim, Hyung-Soo Park, Han-Jong Ko, Jong-Sung Jeong, Meing-Joong Kim
Assessment Of Animal Palatability For Domestic Developed Italian Ryegrass Lolium Multiflorum Lam. In South Korea, Jong-Geun Kim, Hyung-Soo Park, Han-Jong Ko, Jong-Sung Jeong, Meing-Joong Kim
IGC Proceedings (1977-2023)
About 5.6 million tons of forage were consumed in ruminant animals in Korea. But, most of them were supplied in rice straw (2 million ton) and more than one million ton of forage was imported from oversea. As a matter of fact, the self-sufficiency rate of high quality forage was 44 % (2.5 million ton). The research institute had started breeding programs of forage varieties (orchardgrass, Tall fescue and Italian ryegrass), Their remarkable breeding program resulted in release of a synthetic species Italian ryegrass (Lolium multiflorum Lam.) which was more cold-tolerant, much higher yielding than introduced varieties and more …
Milk Production In Goats On Veld Hay Supplemented With Selected Legume Forages, Katsande Simbarashe, Joseph J. Baloyi, F. V. Nherera-Chokuda, N. T. Ngongoni
Milk Production In Goats On Veld Hay Supplemented With Selected Legume Forages, Katsande Simbarashe, Joseph J. Baloyi, F. V. Nherera-Chokuda, N. T. Ngongoni
IGC Proceedings (1977-2023)
Alternative affordable sources of feed such as forage legumes that provide protein, vitamins and mineral elements, which are lacking in mature natural grassland pastures, especially during the dry season (Baloyi et al. 2008), can be an option. The high protein content of these legumes suggests that they have high potential for use as protein supplements in goat feeding. However, there is need for an in-depth study of the utilization of different legume forages for milk production in goats. Gusha et al. (2014) reported that supplementing with legume hays could improve poor quality roughage intake in goats. Snyman (2010) observed lower …
Carbon And Nitrogen Stocks In Integrated Crop Livestock, Valdinei T. Paulino, Erika M. L. C. Teixeira, Marcos Siqueira Neto
Carbon And Nitrogen Stocks In Integrated Crop Livestock, Valdinei T. Paulino, Erika M. L. C. Teixeira, Marcos Siqueira Neto
IGC Proceedings (1977-2023)
Soil organic matter (SOM) is recognized as an important characteristic of sustainable agricultural systems in the tropics and temperate regions. It is considered an integrated characteristic of physical, chemical and biological soil conditions and has been used as a soil quality index in different land uses and management practices (Lal 2011). Environmental, social, and financial imbalances have occurred, requiring producers to become more efficient. A system of intercropping grain crops with forages can provide enough forage in the dry season to maintain nutritional quality of livestock and even promote weight gain (Castro Filho et al. 1991). An integrated crop-livestock system …
Influence Of Stocking Rate, Grazing Season Length And Dairy Cow Genetic Strain On The Nitrogen Balance Of Grass Based Dairy Production Systems, Deirdre Hennessy, Willie Ryan, Laurence Shalloo
Influence Of Stocking Rate, Grazing Season Length And Dairy Cow Genetic Strain On The Nitrogen Balance Of Grass Based Dairy Production Systems, Deirdre Hennessy, Willie Ryan, Laurence Shalloo
IGC Proceedings (1977-2023)
Stocking rate (SR), grazing season (GS) length and Holstein-Friesian (HF) strain can have a profound effect on the productivity of grass-based milk production systems. The optimum SR is that which gives the maximum sustainable economic output of product per unit area. Increasing SR increases output per ha, but also requires increased inputs of feed and fertilizer. Increasing the proportion of grazed grass utilized for milk production improves the economic sustainability of the system (Dillon et al. 2008). Nitrogen (N) use efficiency is one of the key drivers of environmentally and economically sustainable agricultural production systems. Achieving the optimum balance …
Urinary Recovery Of Dicyandiamide (Dcd) Pulse-Dosed Into The Rumen Of Non-Lactating Dairy Cows, And The Effects Of Applying Urine With Dcd To Lysimeters On Nitrous Oxide And Nitrate Leaching In Ireland, Patrick J. O’Connor, Eva Lewis, Helen Slattery, Deirdre Hennessy
Urinary Recovery Of Dicyandiamide (Dcd) Pulse-Dosed Into The Rumen Of Non-Lactating Dairy Cows, And The Effects Of Applying Urine With Dcd To Lysimeters On Nitrous Oxide And Nitrate Leaching In Ireland, Patrick J. O’Connor, Eva Lewis, Helen Slattery, Deirdre Hennessy
IGC Proceedings (1977-2023)
Urine excreted by dairy cows is a source of nitrogen (N) to the sward. The N content of urine is high, up to 1000 kg N/ha and is usually in excess of sward requirements. Surplus N is usually lost through a number of pathways including nitrate (NO3-) leaching and nitrous oxide (N2O) emissions. Dicyandiamide (DCD), a nitrification inhibitor, has been shown to reduce NO3- leaching and N2O emissions when applied as a fine particle suspension (FPS) to grazed paddocks. The objectives of the study were to: (1) quantify the recovery of DCD in …
Improving The Phosphorus Efficiency Of Temperate Australian Pastures, Richard J. Simpson, Graeme A. Sandral, Richard A. Culvenor, Megan H. Ryan, Hans Lambers, Phillip G. H. Nichols, Richard C. Hayes
Improving The Phosphorus Efficiency Of Temperate Australian Pastures, Richard J. Simpson, Graeme A. Sandral, Richard A. Culvenor, Megan H. Ryan, Hans Lambers, Phillip G. H. Nichols, Richard C. Hayes
IGC Proceedings (1977-2023)
Phosphorus (P) is a key input necessary for high production in many temperate, grass-legume pasture systems in Australia because the pastures are situated on P-deficient and moderate to highly P-sorbing soils. A consequence of P-sorption in these soils is that much more P must be applied as fertiliser than will be exported in animal products. The P balance efficiency (PBE=100*Pexport/Pinputs) of grazing enterprises (e.g. wool, meat, milk and live animal export) is about 10-30% and compares poorly with some other agricultural enterprises (e.g. 45-54% for grain production; McLaughlin et al. 1992; Weaver and …
Leaching Of Nitrate From A Grassland Field, Abdulfatah F. Aboufayed
Leaching Of Nitrate From A Grassland Field, Abdulfatah F. Aboufayed
IGC Proceedings (1977-2023)
Agricultural activities are the major cause of non-point pollution. Mechanization of agriculture, artificial fertilizer use and overall intensification of farming has played a major role in the increased incidence of pollution by agricultural activities. Carton et al. (2006) reported the effects of agricultural practices on nitrate leaching from an intensively managed dairy farm and showed that mean concentrations of nitrate nitrogen in the groundwater beneath the farm during the two monitoring years exceeded the maximum admissible concentration (MAC) for drinking water. While average nitrate nitrogen concentration in soil water were less than MAC, there was a trend for increased nitrogen …
Should Native Pastures Be Fertilised?, Jo I. Powells, Doug J. Alcock, Luke C. Pope, Denys Garden
Should Native Pastures Be Fertilised?, Jo I. Powells, Doug J. Alcock, Luke C. Pope, Denys Garden
IGC Proceedings (1977-2023)
Considerable research has been conducted in recent years demonstrating the ongoing benefits of phosphorus (P) fertiliser in achieving and maintaining higher levels of production from native pastures (Graham 2006; Garden et al. 2003; Lodge et al. 2003; Michalk et al. 2003). However Garden et al. (2003), Hill et al. (2004) and Dorrough et al. (2008) all question the sustainability of this practice by highlighting changes in species composition of these pastures with regard to increasing the introduced annual grass and broadleaf weed components at the expense of the native grasses and forbs but in …
Efficient Use Of Phosphorus In Temperate Grassland Systems, Richard J. Simpson, Alan E. Richardson, Shirley N. Nichols, James R. Crush
Efficient Use Of Phosphorus In Temperate Grassland Systems, Richard J. Simpson, Alan E. Richardson, Shirley N. Nichols, James R. Crush
IGC Proceedings (1977-2023)
Phosphorus (P) fertilisers are important for high production in many grassland systems. However, there are increasing environmental, economic and strategic issues associated with using P, which is a non-renewable and “effectively finite” global resource. We review the P balance of temperate pastures to identify the factors that contribute to inefficient P use and discuss ways to improve P use efficiency. The most immediate gains can be made by ensuring that pastures are not over-fertilised. Plants with low critical P requirements, particularly as a result of better root foraging, will be important. Root traits such as fine roots (root diameter), branching, …
Nitrogen Management In Grasslands And Forage-Based Production Systems–Role Of Biological Nitrification Inhibition (Bni), Guntur V. Subbarao, Idupulapati M. Rao, K. Nakahara, Y. Ando, K. L. Sahrawat, T. Tesfamariam, J. C. Lata, S. Boudsocq, J. W. Miles, Manabu Ishitani, M. Peters
Nitrogen Management In Grasslands And Forage-Based Production Systems–Role Of Biological Nitrification Inhibition (Bni), Guntur V. Subbarao, Idupulapati M. Rao, K. Nakahara, Y. Ando, K. L. Sahrawat, T. Tesfamariam, J. C. Lata, S. Boudsocq, J. W. Miles, Manabu Ishitani, M. Peters
IGC Proceedings (1977-2023)
Nitrogen (N), being the most critical and essential nutrient for plant growth, largely determines the productivity in both extensive- and intensive- grassland systems. Nitrification and denitrification processes in the soil are the primary drivers generating reactive-N: NO3-, N2O, and NO, and is largely responsible for N-loss and degradation of grasslands. Suppressing nitrification can thus facilitate the retention of soil-N to sustain long-term productivity of grasslands and forage-based production systems. Certain plants can suppress soil nitrification by releasing inhibitors from roots, a phenomenon termed ‘biological nitrification inhibition’ (BNI). Recent methodological developments (e.g. bioluminescence assay …
Effect Of Water Harvesting And Re-Seeding On Forage Biomass Production From Rangelands In Sheikan Locality, North Kordofan State, Sudan, Sahar Ezzat, Mekki A. Omer, Babo Fadlalla
Effect Of Water Harvesting And Re-Seeding On Forage Biomass Production From Rangelands In Sheikan Locality, North Kordofan State, Sudan, Sahar Ezzat, Mekki A. Omer, Babo Fadlalla
IGC Proceedings (1977-2023)
This study was conducted at Sheikan Locality, North Kordofan State, Sudan. The area has a unimodal annual rainfall of 300-400 mm occurring during July-October. The main economic activities are crop and livestock production. Livestock are raised either under sedentary or migratory systems where natural grazing is practiced. The dominant livestock species are sheep, cattle, goats and camels. A main determinant of livestock production is low forage production resulting from low soil moisture due to low total precipitation and is also due to poor water infiltration rate associated with the prevalent type of sandy clay soils locally known as “gardud”. These …
Pastoral Land Use And Grazing Measurement Through Remotely Sensed Data, Mahesh Kumar Gaur, Arun Kumar Misra, Khem Chand, Mounir Louhaichi, Douglous E. Johnson, M. M. Roy, Ashutosh Sarker
Pastoral Land Use And Grazing Measurement Through Remotely Sensed Data, Mahesh Kumar Gaur, Arun Kumar Misra, Khem Chand, Mounir Louhaichi, Douglous E. Johnson, M. M. Roy, Ashutosh Sarker
IGC Proceedings (1977-2023)
About 60 percent of the world's pasture land (about 2.2 million sq km), just less than half the world's usable surface is covered by grazinglands. These are distributed between arid, semi arid and sub humid, humid, temperate and tropical highlands zones. This supports about 360 million cattle (half of which are in the humid savannas), and over 600 million sheep and goats, mostly in the arid rangelands (grasslands) (IFAD, 2005). Grasslands around the world can have drastically different grazing management systems depending on the political, social, economic, and cultural settings. Livestock grazing is the predominant type of land use, providing …
Modeling Of The Fukushima Daiichi Nuclear Power Plant Derived Radioactive Cesium Dynamics In Grazing Grassland, Mikinori Tsuiki, Moe Yamashita, Yasuko Togamura, Fumiaki Akiyama, Kiyoshi Hirano, Daigo Yamada, Yasuyuki Ide, Takeshi Shibuya
Modeling Of The Fukushima Daiichi Nuclear Power Plant Derived Radioactive Cesium Dynamics In Grazing Grassland, Mikinori Tsuiki, Moe Yamashita, Yasuko Togamura, Fumiaki Akiyama, Kiyoshi Hirano, Daigo Yamada, Yasuyuki Ide, Takeshi Shibuya
IGC Proceedings (1977-2023)
The damage to the Fukushima Daiichi Nuclear Power Plant incurred following the Great East Japan Earthquake and tsunami on March 11, 2011 resulted in serious radioactive pollution of Eastern Japan. In some grasslands of this area, radioactive cesium (Cs) content of grasses exceeded the provisional safety standard for use as feed for dairy and beef cattle of 100 Bq kg–1 fresh weight, and the livestock industry has been seriously affected in numerous ways: needing to dispose of polluted forage, grazing prohibitions, declines in beef prices, suspensions of shipping beef to market, and blanket testing of beef cattle (Manabe et …
The Value Of Modeling Botanical Composition Change In Grasslands, Karl Behrendt
The Value Of Modeling Botanical Composition Change In Grasslands, Karl Behrendt
IGC Proceedings (1977-2023)
The integration of grassland dynamics, livestock production and economics is necessary to improve decision making regarding grassland resource development and management. Within a sward, the relative competitive ability of different species and the way management interacts with the environment both play a significant role in determining the competition between species, future states of the grassland sward, ecological impact of the grassland and its potential for livestock production (Kemp and King, 2001). The impact of botanical composition shifts on grassland productivity will depend on the nutritive value and yield potential of the invasive species against those of the resident species. The …
Assessment Of Grasslands And Livestock Production In Kangra Valley Of Himachal Pradesh, S. Radotra, Inder Dev, A. Kanan, Birbal Singh
Assessment Of Grasslands And Livestock Production In Kangra Valley Of Himachal Pradesh, S. Radotra, Inder Dev, A. Kanan, Birbal Singh
IGC Proceedings (1977-2023)
In Himachal Pradesh 89.96 percent as per 2011 census of population lives in rural areas. The mainstay of the people of Himachal Pradesh is agriculture and has an important place in the economy of the State. Agricultural census shows that 87.95 percent of the total holdings are of small and marginal. Rearing of livestock is an integral component of rural economy (Anonymous, 2014). Livestock depend to a certain extent on fodder and grass grown on common property resources (CPR) as well as on crops and residues. Animal production is an integral part and forms part of the earning of small …
Effect Of Plateau Pika (Ochotonacurzionae) Disturbance On Soil Microelements Content In Alpine Meadow, Tingting Jia, Zhenggang Guo, Yu Xiao, Yuying Shen
Effect Of Plateau Pika (Ochotonacurzionae) Disturbance On Soil Microelements Content In Alpine Meadow, Tingting Jia, Zhenggang Guo, Yu Xiao, Yuying Shen
IGC Proceedings (1977-2023)
The plateau pika (Ochotonacurzoniae) creates the extensive disturbance on alpine meadow ecosystem in the QinghaiTibetan Plateau (Smith and Foggin, 1999, Delibes-Mateos et al., 2011), especially on soil nutrient (Davidson et al., 2012). Previous studies show that intermediate active burrows of plateau pika improved soil macro-element (organic matter, total nitrogen and total phosphorus) in alpine meadow (Guo et al., 2012). However, there is little knowledge about the underlying contribution of plateau pika disturbance in determining soil microelement in alpine meadow. The density of active burrow entrances is used to divide the disturbances levels of plateau pika to …
Range Dynamic And Sustainability Of Mediterranean Grassland, Zalmen Henkin, Eugene D. Ungar, Avi Perevolotsky, Yehuda Yehuda, Serge Landau, Marcelo Sternberg
Range Dynamic And Sustainability Of Mediterranean Grassland, Zalmen Henkin, Eugene D. Ungar, Avi Perevolotsky, Yehuda Yehuda, Serge Landau, Marcelo Sternberg
IGC Proceedings (1977-2023)
Mediterranean grasslands are a highly diverse and complex ecological resource of considerable economic and environmental importance. Herbaceous plant production that determines the carrying capacity of these grasslands for beef cattle husbandry is not only influenced by climatic factors, habitat characteristics, soil fertility and depth, but also by the stocking density and the nature of the grazing system (Gutman et al., 1999). The yearly Mediterranean pasture cycle is characterized by a temperate, winter-spring growing season and a hot, dormant, summer-autumn dry season. Consequently, pasture growth dynamics result in extremely low biomass availability at the beginning of the rainy season and …
Net Herbage Accumulation Rate (Nhar) Of Plantain And Chicory Based Sward Mixes, Sharini Carol Somasiri, Paul R. Kenyon, Peter D. Kemp, Patrick C. H. Morel, Stephen T. Morris
Net Herbage Accumulation Rate (Nhar) Of Plantain And Chicory Based Sward Mixes, Sharini Carol Somasiri, Paul R. Kenyon, Peter D. Kemp, Patrick C. H. Morel, Stephen T. Morris
IGC Proceedings (1977-2023)
The managed grasslands of New Zealand have a range of forage species comprising grasses and legumes that can be grown and utilised in a wide range of conditions (Saggar et al., 2007). Perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) are the dominant grass and legume species found in these grasslands (Hodgson et al., 2005; Waghorn and Clark, 2004). Annual pasture production is affected by the soil moisture status, nutrient levels and temperatures (Valantine and Kemp, 2007). Therefore, monthly pasture production can vary from year to year. Net herbage accumulation rate (NHAR) is …
Inventory Of Important Fodder Plants Of Ladakh Himalaya, Suheel Ahmad, J. P. Singh, D. K. Verma
Inventory Of Important Fodder Plants Of Ladakh Himalaya, Suheel Ahmad, J. P. Singh, D. K. Verma
IGC Proceedings (1977-2023)
In Ladakh, livestock rearing is a major activity in the livelihoods of the population and contributes greatly to income generation in the region and therefore alleviating poverty. In agro-pastoral animal husbandry systems of Leh, Khaltsey, and Nubra blocks and limited areas in Nyoma and Durbok, villagers live in settled communities and practice sedentary agriculture, but they also keep relatively large herds of livestock to augment income and meet dietary and fibre subsistence needs (Ahmed, 2002). Due to prolonged and extreme cold winter, the agriculture season is very short which starts from May and ends by September depending upon different altitudes. …
Seasonal Influence On Botanical Composition Of Plantain, Chicory, White- And Red-Clover Based Herbage Mixes, Sharini Carol Somasiri, Paul R. Kenyon, Peter D. Kemp, Patrick C. H. Morel, Stephen T. Morris
Seasonal Influence On Botanical Composition Of Plantain, Chicory, White- And Red-Clover Based Herbage Mixes, Sharini Carol Somasiri, Paul R. Kenyon, Peter D. Kemp, Patrick C. H. Morel, Stephen T. Morris
IGC Proceedings (1977-2023)
Use of herb based sward mixes that are productive in different weather conditions could be an effective option to provide feed requirements for finishing lambs year round compared to ryegrass (Lolium perenne L.)/white clover (Trifolium repens L.) sward in New Zealand (Kemp et al., 2010). Herbs such as plantain (Plantago lanceolata L.) and chicory (Cichorium intybus L.) and the legumes such as white clover and red clover (Trifolium pratense L.) as pure swards are known to improve lamb performance compared to ryegrass/white clover. Therefore, there is scope to have …
Characterization And Mapping Of Halophyte Vegetation Using Gis And Remote Sensing Technique In Kachchh Plane Of Gujarat, India, J. P. Singh, D. Deb, R. Srinivasan, R. S. Chaurasia, Archana Singh, Ashwini Kumar, M. Shamsudheen
Characterization And Mapping Of Halophyte Vegetation Using Gis And Remote Sensing Technique In Kachchh Plane Of Gujarat, India, J. P. Singh, D. Deb, R. Srinivasan, R. S. Chaurasia, Archana Singh, Ashwini Kumar, M. Shamsudheen
IGC Proceedings (1977-2023)
One of the pressures of a burgeoning population is need to increase agricultural production through both irrigated agriculture and the development of land that was previously regarded as marginal. About 8.56 m ha land in India is affected by salt. Out of this, about 1.2 m ha land is in Gujarat which is next to Uttar Pradesh (1.295 m ha). Kachchh, the second largest district of the country, has more than 53% of the total geographical area under Ranns (salt-marshy lands). The soil salinity in this region ranges from 3.2 to 32 EC and sodicity from 8.0 to 10.0 pH. …
Evaluation Of Grasslands Of Mahboobnagar District, Telangana State, M. Shanti, T. Shashikala, R. V. T. Balazzii Naaiik, Ch. Chiranjeevi, R. Susheela, M. Anuradha
Evaluation Of Grasslands Of Mahboobnagar District, Telangana State, M. Shanti, T. Shashikala, R. V. T. Balazzii Naaiik, Ch. Chiranjeevi, R. Susheela, M. Anuradha
IGC Proceedings (1977-2023)
Telangana state is gifted with rich livestock resources; 50.3 lakh cattle, 41.9 lakh buffaloes, 128.7 lakh sheep and 46.7 lakh goats ( Livestock census, 2012).The district of Mahboobnagar in this newly formed State is known for its huge cattle, sheep and goat population. The district ranks first in sheep (37, 30,689) and goat (6, 87,066) population among all districts of state, though ranks second and sixth in cattle and buffalo population, respectively (Live stock census, 2012). The most common sources of fodder to feed these livestock are crop residues (68%), forages from common property resources (CPRs) like forests, pastures and …
Mapping Of Thar Desert Grasslands Using High Resolution Carto-Data (A Case Study Of Jodhpur District), Mahesh Kumar Gaur, Pratap Chandra Moharana, C. B. Pandey, R. K. Bhatt
Mapping Of Thar Desert Grasslands Using High Resolution Carto-Data (A Case Study Of Jodhpur District), Mahesh Kumar Gaur, Pratap Chandra Moharana, C. B. Pandey, R. K. Bhatt
IGC Proceedings (1977-2023)
The spatio-temporal condition and trend of grasslands in India at village-level is still not known completely. Historical and contemporary monitoring and assessment protocols are primarily based on the wisdom, knowledge and experience of village-level revenue officer (patwari) which is just significant from the statistical point of view. Contrastingly, such grassland areas are considered to be of high priority by government authorities for the long-term conservation of biodiversity. Protection, development and sustainable use of grasslands are very important for the rural economy and livestock. The major grasslands now survive west of isohyets 200 to 250 mm rainfall where livestock …
Grasslands Of Arid Kachchh, India: Present Status And Management Strategies For Higher Productivity, Devi Dayal, Shamsudheen Mangalassery
Grasslands Of Arid Kachchh, India: Present Status And Management Strategies For Higher Productivity, Devi Dayal, Shamsudheen Mangalassery
IGC Proceedings (1977-2023)
The hot arid region covers an area of 31.70 million hectares in India, covering seven states that include Rajasthan, Gujarat, Punjab, Haryana, Andhra Pradesh, Karnataka and Maharashtra. The arid region in Gujarat is distributed in eight districts namely, Kachchh (100% of the district area), Jamnagar (80%), Surenderanagar (29%), Junagadh (20%), Banaskantha (18%), Mehsana (7%), Ahmadabad (6%) and Rajkot (6%). Gujarat accounts for 19.6% of the total arid zone in the country of which Kachchh district alone accounts for more than 70% arid area of the state (Shamsudheen et al., 2009). Under the conditions of low and erratic precipitation, high evapotranspiration …
Relationship Between Soil Chemical And Physical Properties And Vegetation In The Latest Decade Of Alpine Grasslands Of Southern Qinghai, China, Sachiko Idota, Jiahua Yang, Manabu Tobisa, Xiaoqin Li, Guomei Li, Rende Song, Haizhu Li, Nobumi Hasegawa, Masahiro Tasumi, Naoyuki Yamamoto, Aya Nishiwaki, Yasuyuki Ishii
Relationship Between Soil Chemical And Physical Properties And Vegetation In The Latest Decade Of Alpine Grasslands Of Southern Qinghai, China, Sachiko Idota, Jiahua Yang, Manabu Tobisa, Xiaoqin Li, Guomei Li, Rende Song, Haizhu Li, Nobumi Hasegawa, Masahiro Tasumi, Naoyuki Yamamoto, Aya Nishiwaki, Yasuyuki Ishii
IGC Proceedings (1977-2023)
The Tibetan Plateau is one of the most important ecosystems in the world (Yang et al. 2009), particularly because of the global importance of its climate (Tian et al. 2008; Wang et al. 2008). Grassland ecosystems on the plateau are sensitive to global change, because the plateau is located in marginal land areas where the growth and distribution of plants depend heavily on local climatic conditions (Zhang et al. 1996). The alpine grassland of Qinghai Province in China has been traditionally used for extensive grazing by sheep and yak (Bos grunniens), but is now degraded from …
Comparing Soil Compaction Under Different Grazing Systems With A Virgin Forest Soil To Determine Optimal Stocking Rates, Wellington W. Rocha, Bruno S. Pires, Moacir S. Dias Junior, Rita De C. R. Carvalho
Comparing Soil Compaction Under Different Grazing Systems With A Virgin Forest Soil To Determine Optimal Stocking Rates, Wellington W. Rocha, Bruno S. Pires, Moacir S. Dias Junior, Rita De C. R. Carvalho
IGC Proceedings (1977-2023)
The understanding of how soil physical properties respond to differing grazing practices may help explain the main causes of pasture degradation. Soil compaction has been shown to be a main degradation form of soil and the knowledge of techniques to quantify and rectify this are necessary to maintain optimal yields. This research aims to measure the rupture lines of red yellow latossol under differing pasture grazing practices compared to cropping and a natural forest. With this information it is aimed to calculate the correction factor for stocking rates and traffic of tillage tools. The differing soil management practices examined was, …
Establishing Baseline Values For Soil Quality Indicators In The Southern Cape Of South Africa, Pieter A. Swanepoel, Philip R. Botha, Chris C. Du Preez, Hennie A. Snyman
Establishing Baseline Values For Soil Quality Indicators In The Southern Cape Of South Africa, Pieter A. Swanepoel, Philip R. Botha, Chris C. Du Preez, Hennie A. Snyman
IGC Proceedings (1977-2023)
Commercial dairy farming on pasture is commonly practiced in the southern Cape region of South Africa. In terms of its sustainability, quantification of the impact of dairy-pasture management on soil quality is essential. To comprehend the behaviour of soils in terms of quality, indicators should be assessed to screen the general direction of soil quality within a management system. Development of a soil quality assessment framework necessitates establishment of baseline values for soil quality indicators. The aim of this study was to establish baseline values for soil quality indicators for dairy-pasture soils in the southern Cape. Physical, chemical and biological …
Benefits And Uses Of Nematodes In Grassland Soils, Michael J. Wilson
Benefits And Uses Of Nematodes In Grassland Soils, Michael J. Wilson
IGC Proceedings (1977-2023)
To most grassland farmers nematodes mean trouble: they are important parasites of both pasture plants and livestock. While there is no doubting the considerable losses caused by nematodes, crop and livestock pests represent a tiny minority of the approximately 26,000 described nematode species. Here I examine the beneficial effects of nematodes within grassland systems and their beneficial uses. Nematodes in grassland soils increase plant available nutrients, move beneficial microbes through the rhizosphere and control insect and mollusc herbivores. We can use nematodes as biological control agents, and also as indicators of soil health/quality. While no single group of organisms can …
Assessment Of Methane Production By Goats Under Intermittent Grazing, Naomi C. Meister, Nailson L. S. Lemos, Fernando O. Alari, Victor C. Silva, William Koury Filho, Ana C. Ruggieri
Assessment Of Methane Production By Goats Under Intermittent Grazing, Naomi C. Meister, Nailson L. S. Lemos, Fernando O. Alari, Victor C. Silva, William Koury Filho, Ana C. Ruggieri
IGC Proceedings (1977-2023)
There are 875 million goats worldwide (FAO 2012) and the majority are in developing countries where they are typically raised on pasture. Ruminants release gross energy as methane, which is a greenhouse gas. Mthane mitigation strategies require prior knowledge about emission of methane by animals under different management systems. Intake, quality and type of feed are factors that influence methane emissions, therefore the objective of this study was to investigate how grazing intensity, measured by the residual leaf area index (RLAI), influences methane emission by goats under rotational grazing on Tanzania grass pasture.