Assessment Of Drought Resistance For 17 Alfalfa Varieties At The Seedling Stage,
2020
Beijing Academy of Agriculture and Forestry Sciences, China
Assessment Of Drought Resistance For 17 Alfalfa Varieties At The Seedling Stage, Lin Meng, Peichun Mao, Qiang Guo
IGC Proceedings (1977-2023)
Alfalfa is a crop of relative water demand, and the good quality, the high and stable yield could be obtained directly depending on water supplies and strong or weak drought resistance ability of alfalfa cultivars (Geng 1995; Chen and Jia 2000). To guide steady and effectively development of alfalfa industrialization in the arid and semi-arid regions of China, we systematically selected the excellent drought resistant alfalfa cultivars, and then identified and assessed their drought resistant capacity. In this study, a pot experiment was conducted by simulating drought stress in a greenhouse to assess the drought resistance of seventeen alfalfa cultivars …
Effect Of Forage Brassica On Subsequent Soil Water Content And Yield Of Dual-Purpose Winter Wheat In Rainfed Region Of Northwestern China,
2020
Lanzhou University, China
Effect Of Forage Brassica On Subsequent Soil Water Content And Yield Of Dual-Purpose Winter Wheat In Rainfed Region Of Northwestern China, Yuanbo Liu, Lihua Tian, Qingping Zhang, Yuying Shen
IGC Proceedings (1977-2023)
The dual-purpose performance of winter wheat used for both forage and grain production has been explored as an alternative practice for filling the feed gap during winter and spring in agricultural areas of the Loess Plateau. Profit-ability is still restricted however, because of a three month summer fallow period between harvest and planting of the subsequent wheat crop. During this 3 month period 60% of the annual precipitation occurs, limiting the effective use of soil water and compounding the risk of soil erosion. Thus it is important to cultivate some forage crops with higher water consumption, protecting the ecological environment …
Using Forages To Conserve Water In Semi-Arid Irrigated Cropping Systems,
2020
Texas Tech University
Using Forages To Conserve Water In Semi-Arid Irrigated Cropping Systems, Rick Kellison, V. G. Allen, C. P. Brown, D. L. Doerfert, P. N. Johnson, S. J. Maas, C. P. West
IGC Proceedings (1977-2023)
The Texas High Plains are part of the largest, contiguously irrigated cropland in the USA, and draws water from the Ogallala aquifer. High crop prices, increased demand for maize for ethanol production, and severe drought have increased water depletion rates. Research has shown that integrating forages and grazing cattle into the cotton-dominant cropping system can reduce overall water use (Allen et al. 2012) while still offering farmers positive net returns (Johnson et al. 2013). Integrating forages with row crops also reduces needs for nitrogen (N) fertilizer, rebuilds soil organic matter (Acosta-Martinez et al. 2010), and reduces fossil energy …
Flexible Forage Systems For Variable Water Supplies,
2020
Department of Primary Industries, Australia
Flexible Forage Systems For Variable Water Supplies, Mary-Jane E. Rogers, Alister Lawson, Kevin Kelly
IGC Proceedings (1977-2023)
The dairy industry in northern Victoria, Australia is primarily based on the border check irrigation of temperate forage species over the spring to autumn period. Traditionally, dairy cows have grazed the perennial species (white clover and perennial ryegrass) and annual pastures (based on short-lived ryegrasses and subterranean or Persian clover). However, due to a more variable climate – particularly a period where the annual rainfall has been significantly less than the long-term average – the summer irrigation allocations have been substantially lower and more variable than the preceding 20-30 years. Under this climate scenario, dairy farmers are re-evaluating their feed …
Delayed Sowing Decreased Lucerne Dry Matter Yield Over Two Seasons,
2020
Lincoln University, New Zealand
Delayed Sowing Decreased Lucerne Dry Matter Yield Over Two Seasons, Richard Sim, Derrick Moot
IGC Proceedings (1977-2023)
Lucerne (Medicago sativa L.) can be sown in New Zealand from late spring (October) to early autumn (March). In the establishment season, greatest drymatter (DM) yields are normally attained from sowing early and production lost from delayed sowing is only considered in the establishment season. The objective of this research is to determine if sowing date continues to have an effect on DM yield in year two and how the partitioning of DM between the above and below ground plant fractions is influenced by sowing date.
Dynamic Simulation And Definition Of Crop Coefficient For Typical Steppe In Inner Mongolia, China,
2020
Meteorological Research Institute of Inner Mongolia, China
Dynamic Simulation And Definition Of Crop Coefficient For Typical Steppe In Inner Mongolia, China, Hou Qiong
IGC Proceedings (1977-2023)
There are few reference values for crop coefficients for natural grassland in FAO Irrigation and Drainage papers. The aim of this paper was to define crop coefficients under different water conditions for typical steppe vegeation in Inner Mongolia, based on actual observation data and statistical analysis, so as to accurately calculate the water demand and actual evapotranspiration of plant community in Inner Mongolia.
The North Wyke Farm Platform: Methodologies Used In The Remote Sensing Of The Quantity And Quality Of Drainage Water,
2020
Rothamsted Research, UK
The North Wyke Farm Platform: Methodologies Used In The Remote Sensing Of The Quantity And Quality Of Drainage Water, Bruce A. Griffith, Jane M. B. Hawkins, Robert J. Orr, Martin S. A. Blackwell, Phil J. Murray
IGC Proceedings (1977-2023)
The North Wyke Farm Platform(NWFP) for agri-environmental research in temperate grassland was established in the UK in 2010 (Orr et al. 2011). Here we describe the instrumentation and methodologies used to monitor the quantity and quality of drainage water at a total of 15 H-flumes draining 5 sub-catchments within three farmlets. Each of 15 flume laboratories is supplied with 3 kW of mains power and connected to both fibre optic and UHF (Ultra High Frequency) radio networks for data exchange. The radio data network also provides telemetry for rain gauges and soil temperature/moisture probes located away from the flumes …
Managing Water Resources In Australian Temperate Pastures,
2020
Department of Primary Industries, Australia
Managing Water Resources In Australian Temperate Pastures, David Mitchell
IGC Proceedings (1977-2023)
Increasing the amount of perennial vegetation changes the water balance at both farm and catchment scale. At the farm scale, changes to the flows of water and salt are generally as expected, though some perverse outcomes may occur, such as a shortage of surface water for stock. From a catchment perspective, downstream users are little affected by decreases in streamflow volumes, river flows appear to be more typical of pristine flows, and upstream landholders benefit from improved resilience.
Effect Of Water Harvesting And Re-Seeding On Forage Biomass Production From Rangelands In Sheikan Locality, North Kordofan State, Sudan,
2020
Sudan University of Science and Technology, Sudan
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 …
Soil And Water Conservation And Integrated Management In Watershed Ecosystem Of The Loess Plateau, China,
2020
Northwest A&F University, China
Soil And Water Conservation And Integrated Management In Watershed Ecosystem Of The Loess Plateau, China, Guobin Liu, Gaolin Wu, Guoliang Wang, David Mitchell
IGC Proceedings (1977-2023)
The Loess Plateau is well known for severe soil erosion and ecosystem degradation. The key issues in this region are the food security (grain), ecological security and a sustainable economy. This paper reviews a range of studies on ecological restoration, and management and the benefit at watershed scale on the Loess Plateau. This includes several successful cases and failures in soil conservation. The paper presents practical soil conservation measures and related benefit analysis, and discusses some effective methods adopted in soil erosion control, research directions and future perspectives for the Loess Plateau.
Soil Quality Parameters And Carbon Stock As Influenced By Fodder Grasses And Organic Amendments In An Alfisol Of Northeastern India,
2020
ICAR Research Complex for NEH Region, India
Soil Quality Parameters And Carbon Stock As Influenced By Fodder Grasses And Organic Amendments In An Alfisol Of Northeastern India, Anup Das, G. Ramkrushna, Jayanta Layek, A. S. Panwar, S. V. Ngachan, D. P. Patel
IGC Proceedings (1977-2023)
Intensive tillage, cultivation along the slope, low input, minimal nutrient replacement and high rainfall are among major causes of land degradation in the north eastern hill (NEH) region (Ghosh et al. 2009). Maintaining and enhancing soil quality are crucial to sustaining agricultural productivity and environmental quality (Lal, 2004). Continuous cropping, without use of conservation-effective measures, has negative effects on the soil and environment (e.g., loss of SOC, soil erosion, water pollution). Thus, soil management methods are needed that enhance use efficiency of inputs, reduce losses and minimize adverse impacts on the environment (Bilalis et al. 2009). Perennial grasses provide …
A Method For Assessing Multiples Ecosystem Services From Grasslands Based On Vegetation Characteristics. An Example From Norwegian Semi-Natural Grasslands,
2020
CIRAD, France
A Method For Assessing Multiples Ecosystem Services From Grasslands Based On Vegetation Characteristics. An Example From Norwegian Semi-Natural Grasslands, Simon Taugourdeau, Line Johansen, Sølvi Wehn
IGC Proceedings (1977-2023)
Ecosystem services are human benefits provided by ecosystems and related to the characteristics of the vegetation (de Bello et al., 2010).Semi-natural grasslands provide a large set of ecosystem services and are thus important ecosystems in boreal landscapes. The vegetation of semi-natural grasslands differ regarding land use, soil and climate. Consequently, also provision of ecosystem services from semi-natural grasslands will vary among various types of semi-natural grasslands. Here, we propose a method to develop indicators of ecosystem services from semi-natural grassland using the DEXI® software (Bohanec and Raikovic, 1990).
Pastoral Land Use And Grazing Measurement Through Remotely Sensed Data,
2020
Central Arid Zone Research Institute, India
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,
2020
Iwate University, Japan
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,
2020
Charles Sturt University, Australia
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 …
Bfast: A Replacement Of Climate Indicators For Monitoring Time-Series Using Modis,
2020
Gorgan University, Iran
Bfast: A Replacement Of Climate Indicators For Monitoring Time-Series Using Modis, Naghmeh Gholami Baghi, Jens Oldeland
IGC Proceedings (1977-2023)
Monitoring changes is critical information for rangeland management because vegetation is seasonally fluctuating green base protection of soil, therefore it is necessary to evaluate it at long-term period. In this study, abrupt and gradual trend changes were detected using BFAST and EVI-16 days of MODIS production. Time series results showed that 2000-2003 period was stable history and abrupt changes included 2003 onwards on monitoring history. The most negative trends were situated at center above of area with salty soil. Other parts of study area had positive and moderate trend. Our results suggest that BFAST is an automatic and repeatable …
Remote Sensing And Gis Techniques For Forage Production Assessment And Management Of Northern Chhattisgarh In India,
2020
Indian Grassland and Fodder Research Institute, India
Remote Sensing And Gis Techniques For Forage Production Assessment And Management Of Northern Chhattisgarh In India, Nur Salim Ekka, S. K. Gupta
IGC Proceedings (1977-2023)
Grasslands play a vital ecological and environmental role in global carbon balance and climate change. In the prairie provinces of Canada, grasslands occupy approximately 25 M ha of the land base and provide a valuable resource to the multi-billion dollar cattle industry. In recent years, remote sensing technology has been applied for estimating the fractional cover of arid grasslands and savannah ecosystems (Asner and Heidebrecht, 2003; Marsett et al. 2006; Guerschman et al., 2009). Grassland, a specific ecosystem, occurs naturally on all continents excluding Antarctica (White et al., 2000). Remote sensing imagery needs to be converted into tangible information …
Assessment Of Grasslands And Livestock Production In Kangra Valley Of Himachal Pradesh,
2020
Indian Grassland and Fodder Research Institute, India
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,
2020
Lanzhou University, China
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,
2020
Agricultural Research Organization, Israel
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 …
