Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Agricultural Science (2064)
- Physical Sciences and Mathematics (1968)
- Plant Biology (1953)
- Plant Pathology (1924)
- Earth Sciences (1920)
-
- Soil Science (1920)
- Weed Science (1913)
- Agriculture (225)
- Agricultural Education (96)
- Agricultural Economics (83)
- Biosecurity (81)
- Horticulture (75)
- Environmental Sciences (64)
- Botany (50)
- Business (49)
- Agribusiness (46)
- Entomology (41)
- Animal Sciences (39)
- Environmental Monitoring (38)
- Other Plant Sciences (32)
- Environmental Indicators and Impact Assessment (25)
- Natural Resources Management and Policy (23)
- Social and Behavioral Sciences (21)
- Medicine and Health Sciences (20)
- Engineering (19)
- Food Science (16)
- Plant Breeding and Genetics (16)
- Institution
-
- University of Kentucky (1886)
- Department of Primary Industries and Regional Development, Western Australia (142)
- University of Nebraska - Lincoln (87)
- University of Arkansas, Fayetteville (60)
- Universitas Padjadjaran (18)
-
- South Dakota State University (17)
- Louisiana State University (8)
- University of the Philippines Los Baños (7)
- Clemson University (4)
- Murray State University (4)
- Chapman University (3)
- Purdue University (2)
- American University in Cairo (1)
- Bellarmine University (1)
- California Polytechnic State University, San Luis Obispo (1)
- Case Western Reserve University (1)
- Chinese Academy of Sciences (1)
- Georgia College (1)
- The University of San Francisco (1)
- Universiti Brunei Darussalam (1)
- University of Louisville (1)
- University of Montana (1)
- University of New Mexico (1)
- University of South Alabama (1)
- Utah State University (1)
- Western Kentucky University (1)
- Wright State University (1)
- Keyword
-
- Grazing (137)
- Trifolium repens (72)
- Sheep (68)
- Cattle (57)
- Lolium perenne (54)
-
- Forage quality (47)
- Nitrogen (46)
- Forage (40)
- Pasture (40)
- Seed production (38)
- Digestibility (36)
- Persistence (35)
- Legumes (34)
- Medicago sativa (34)
- Nutritive value (34)
- Sustainability (34)
- Climate change (33)
- Yield (33)
- Alfalfa (32)
- Management (32)
- Intake (31)
- Seed yield (31)
- Grasses (30)
- Phosphorus (30)
- Silage (29)
- Defoliation (28)
- Tall fescue (28)
- White clover (28)
- Grazing management (27)
- Fertiliser (26)
- Publication
-
- IGC Proceedings (1977-2023) (1881)
- Grains and other field crops factsheets (79)
- Department of Agronomy and Horticulture: Faculty Publications (32)
- Crop, Soil and Environmental Sciences Faculty Publications and Presentations (30)
- Jurnal Kultivasi (18)
-
- Biosecurity factsheets (17)
- Electronic Theses and Dissertations (15)
- Grain and Other Field Crops Research Articles (15)
- Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research (13)
- Animal production and livestock factsheets (10)
- Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023– (9)
- Graduate Theses and Dissertations (9)
- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (8)
- Natural resources factsheets (8)
- The Philippine Agricultural Scientist (7)
- Cornhusker Economics (6)
- Arkansas Agricultural Experiment Station Research Series (5)
- LSU Master's Theses (5)
- Biosecurity Research Articles (4)
- Nebraska Seed Focus (4)
- Agricultural Economics and Agribusiness Faculty Publications and Presentations (3)
- Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research (3)
- Department of Entomology: Dissertations, Theses, and Student Research (3)
- Entomology Faculty Publications (3)
- LSU Doctoral Dissertations (3)
- Agronomy, Horticulture and Plant Science Faculty Publications (2)
- All Dissertations (2)
- Biology, Chemistry, and Environmental Sciences Faculty Articles and Research (2)
- Biosecurity published reports (2)
- Department of Agricultural and Biological Systems Engineering: Faculty Publications (2)
- Publication Type
- File Type
Articles 961 - 990 of 2253
Full-Text Articles in Agronomy and Crop Sciences
The Effect Of Slurry And Dirty Water Application To Swards On Grazing Behaviour In Dairy Cows, S Danby, J A. Laws, P D. Penning, B F. Pain, E Owen
The Effect Of Slurry And Dirty Water Application To Swards On Grazing Behaviour In Dairy Cows, S Danby, J A. Laws, P D. Penning, B F. Pain, E Owen
IGC Proceedings (1977-2023)
In preference tests using pairs of turves in boxes (treated and control), dairy cows were more averse to surface spread than shallow injected slurry and more averse to slurry than dirty water. Effects of slurry persisted for up to 6 weeks, with fewer bites and less herbage removed from treated swards compared to control swards. Aversion to slurry may be decreased by injection. Effects of dirty water persisted for only 14 days.
Applications Of Height-Based Grazing Management In Mixed Swards, A Singh, J E. Johnston, E A. Clark
Applications Of Height-Based Grazing Management In Mixed Swards, A Singh, J E. Johnston, E A. Clark
IGC Proceedings (1977-2023)
Grazing efficiency and livestock performance were compared on swards rotationally grazed down to either 50 or 100 mm for three years. With a fixed entry height of 200-250 mm, standing swards of mixed grasses and white clover (Trifolium repens L.) were stratified into 50 mm vertical layers both pre- and post-grazing. Through four or five cycles of grazing each year for three years, a fixed entry height range stabilized total standing herbage at 3250 to 3690 kg OM ha-1. Organic matter on-offer above 100 mm was 36, 45, and 43% of total standing herbage in the three years, compared …
Ingestive Behavior Of Fistulated And Intact Sheep Grazing Grass And Legumes Indoors And Outdoors, Y M. Gong, J Hodgson, M G. Lambert
Ingestive Behavior Of Fistulated And Intact Sheep Grazing Grass And Legumes Indoors And Outdoors, Y M. Gong, J Hodgson, M G. Lambert
IGC Proceedings (1977-2023)
Components of short-term ingestive behaviour were recorded for fistulated and intact sheep grazing turves in indoor crates, and for esophageal-fistulated sheep grazing swards in situ in outdoor cages. Perennial ryegrass, orchard grass and white clover at vegetative and reproductive growth stages were offered to the sheep. Bite weight, depth, area and volume did not differ between sheep grazing indoors and outdoors, nor between intact and fistulated sheep. Bite rate of fistulated sheep was slower indoors than outdoors (25.3 versus 32.1 bites/min), and intact sheep had a higher biting rate (36.7 versus 25.3 bites/min) than fistulated sheep. Bite weight was over-estimated …
Dairy Production From Pasture In Southern China, P.N P. Matthews, J Hodgson, A.C P. Chu, W L. Jiang, C B. Luo
Dairy Production From Pasture In Southern China, P.N P. Matthews, J Hodgson, A.C P. Chu, W L. Jiang, C B. Luo
IGC Proceedings (1977-2023)
This paper covers the development of dairy production systems as part of the UNDP funded Agro-grasslands Systems Development Project in Guizhou Province, China. The basic philosophy for the project was for local adaptation of New Zealand technology for developing dairy production systems based on pastures. The dairy production systems were established and the outputs of the project successfully achieved. Net incomes of smallholder farmers increased from a baseline of RMB $140 to RMB $1740 per annum over a three year period. Based on the experienced gained in setting up these systems local researchers, administrators, extension personnel and smallholders were able …
Trace Mineral Status Of Beef Cattle Grazing Semiarid Rangelands Of North Mexico, J R. Kawas, G T. Armienta, E Olivares, O Torress, J J. Kawas, F Garza
Trace Mineral Status Of Beef Cattle Grazing Semiarid Rangelands Of North Mexico, J R. Kawas, G T. Armienta, E Olivares, O Torress, J J. Kawas, F Garza
IGC Proceedings (1977-2023)
Trace mineral concentrations of soil, forage and serum of range cattle of the northeast Mexico state of Nuevo Leon were determined in both wet and dry seasons of 1992. For each season, collections were made at twenty-four ranches within eleven counties of three regions. A total of 220 soil, 680 forage and 220 blood samples were collected and analyzed. No differences (P<0.05) between regions were obtained for Zinc (28.0 to 34.9 ppm) or Copper (4.4 to 5.4 ppm). Molybdenum concentrations were greater in the northern (2.1 ppm) than in the central (1.6 ppm) or southern (1.5 ppm) regions. Considering the critical levels in forages for Zinc (30 ppm) and Copper (10 ppm) reported by the National Research Council (1984), Zinc concentrations may be marginally deficient, whereas Copper concentrations were deficient in all three regions, in both seasons, and in grasses and woody species.
Forage-Based Seasonal Dairying In South Louisiana, H A. Deramus, L Labbe, K Ingawa, W A. Atkinson, M J. Simon, J D. Roussel
Forage-Based Seasonal Dairying In South Louisiana, H A. Deramus, L Labbe, K Ingawa, W A. Atkinson, M J. Simon, J D. Roussel
IGC Proceedings (1977-2023)
The effects on the net profit and total milk production were compared using two levels of grain supplementation and forage-only feeding in a program of seasonal dairying in South Louisiana using management intensive grazing. Treatments were 8 kg grain, 4 kg grain, and 0 grain supplementation. Annual ryegrass (Lolium multiflorium) and clovers (Trifolium incarnatum, and T. Alexandrinum) were grazed intensively with 51 multiparous Jersey and Holstein cows in mid-lactation in 1993-1995. Milk production, milk fat, milk protein, and blood urea nitrogen were measured. Milk and protein models were all highly significant for all classes. Daily milk …
Influence Of Sheep And Goats On The Natural Succession, H D. Matthes, S Demise, M Schubert, H Mohring
Influence Of Sheep And Goats On The Natural Succession, H D. Matthes, S Demise, M Schubert, H Mohring
IGC Proceedings (1977-2023)
A study was conducted to examine the effect of extensively-grazed pasture on the botanical composition. The trails were carried out in the year 1992 to 1995. For the study different breeds of sheep with the stocking rate of 30 sheep with their lambs / 2.6 ha were used. For the mixed-grazing a ratio of 20 sheep and 10 goats with their lambs / 2.6 ha were used. It is not possible to control all problem species with the help of sheepgrazing only. In contrast to that, it was concluded that goats grazed off all problem species quite effectively. Botanical composition …
Influence Of Different Breeds Of Pigs To The Natural Succession, H D. Matthes, A.C D. Micklich, G Dietl, H Mohring, W Jentsch
Influence Of Different Breeds Of Pigs To The Natural Succession, H D. Matthes, A.C D. Micklich, G Dietl, H Mohring, W Jentsch
IGC Proceedings (1977-2023)
The aim of this study was to find out the effect of pigs on the natural succession. We used 4 different breeds of pigs for our investigations. Because of the grazing behaviour and their rooting activity the total number of plants increased up to 30%. But the vegetation quickly returned to conditions prior to rooting, if the rooting activity fails to happen. Rooting activity of pigs on floodplain soil and following grazing in the next spring after rooting permits seeds of different species of plants to germinate and develop in the plant free areas. These plants often have little chance …
Infograz: A Data Base For Tropical Grazing Systems, K G. Rickert, J Carter, C K. Mcdonald
Infograz: A Data Base For Tropical Grazing Systems, K G. Rickert, J Carter, C K. Mcdonald
IGC Proceedings (1977-2023)
INFOGRAZ is a prototype of a comprehensive relational database that describes the management of, and stores information from, grazing experiments in northern Australia associated with the wool, beef, and dairy industries. It provides permanent storage and public access for detailed measurements on climate, soil, plants, and animals, which are a valuable resource for future pasture scientists and computer modellers of grazing systems. Thus it will prevent the detailed observations being lost with the passage of time. Verified data from each experiment are stored in tables which can be distributed on CD-ROM, along with procedures to access the data and use …
Greater Aperture Counteracts Effects Of Reduced Stomatal Density On Water Use Efficiency: A Case Study On Sugarcane And Meta-Analysis, Daniel Lunn, Baskaran Kannan, Amandine Germon, Alistair Leverett, Thomas E. Clemente, Fredy Altpeter, Andrew D.B. Leakey
Greater Aperture Counteracts Effects Of Reduced Stomatal Density On Water Use Efficiency: A Case Study On Sugarcane And Meta-Analysis, Daniel Lunn, Baskaran Kannan, Amandine Germon, Alistair Leverett, Thomas E. Clemente, Fredy Altpeter, Andrew D.B. Leakey
Department of Agronomy and Horticulture: Faculty Publications
Stomata regulate CO2 and water vapor exchange between leaves and the atmosphere. Stomata are a target for engineering to improve crop intrinsic water use efficiency (iWUE). One example is by expressing genes that lower stomatal density (SD) and reduce stomatal conductance (gsw). However, the quantitative relationship between reduced SD, gsw, and the mechanisms underlying it is poorly understood. We addressed this knowledge gap using low-SD sugarcane (Saccharum spp. hybrid) as a case study alongside a meta-analysis of data from 10 species. Transgenic expression of EPIDERMAL PATTERNING FACTOR 2 from Sorghum bicolor (SbEPF2) in sugarcane …
Effects Of Two Grazing Conditions On The Reproductive Achievement Of Male Alpaca In The Northern Peru Grasslands, C Pinares, E Malpartida, S Cortez
Effects Of Two Grazing Conditions On The Reproductive Achievement Of Male Alpaca In The Northern Peru Grasslands, C Pinares, E Malpartida, S Cortez
IGC Proceedings (1977-2023)
Alpaca have recently been introduced to the northern Peru grasslands (Jalca). Effects of two systems of grazing management, co-grazing (with sheep) under fair grassland condition (CGFC) versus exclusive grazing under good grassland condition (EGGC), upon the reproductive achievement was examined from the 6th to the 16th month of age. Each system involved 20 Huacaya animals, managed by individual herders. Availability of herbage preferred by alpaca (HMA) and animal measurements (herbage intake, liveweight, testicle size, penis release from preputial attachments, plasma testosterone) were monitored monthly. Puberty, judged by the penis release from the preputial attachments, was achieved by 7 …
Experiences Of Eight Ohio Beef And Sheep Producers With Year Round Grazing, H M. Bartholomew, S L. Boyles, B Carter, E Vollborn, D Miller, R M. Sulc
Experiences Of Eight Ohio Beef And Sheep Producers With Year Round Grazing, H M. Bartholomew, S L. Boyles, B Carter, E Vollborn, D Miller, R M. Sulc
IGC Proceedings (1977-2023)
Livestock producers participated in a demonstration project to extend the grazing season and evaluate dormant forage quality and yield. Differences were not detected in yields among forage species but yield differences existed among sites. Yield estimates did not change over time across all forage species but some sites were only able to participate for two months. Producers utilizing fescue beyond November had reductions in herbage mass. Crude protein, available crude protein, acid detergent fiber, and neutral detergent fiber content differed among forage species and sites. Energy and lignin content were similar for all forage species and sites. Sodium and copper …
Forage Production Of Irrigated Lecerne- Grass Mixtures Grazed By Sheep, M L. Enrique, D P. Minon
Forage Production Of Irrigated Lecerne- Grass Mixtures Grazed By Sheep, M L. Enrique, D P. Minon
IGC Proceedings (1977-2023)
The forage production and botanical changes of lucerne cultivars in pure stands and in grass mixtures were studied in a split-plot experiment with irrigation and sheep grazing. The non dormant lucerne cultivars (Medicago sativa) CUF 101, Monarca SPINTA, P 30 and common were the main plots, and tall fescue (Festuca arundinacea), canarygrass (Phalaris aquatica), cocksfoot (Dactylis glomerata), tall wheatgrass (Thynopirum ponticum) and prairie grass (Bromus catharticus) were the subplots. The experiment was grazed 3, 6 and 4 times during 3 years. Total yield was similar for all lucerne …
Oat Grazing: Forage Composition And Supplementation Response, A J. Freddi, M J. Arzadun, A A. Pissani, P Sastre
Oat Grazing: Forage Composition And Supplementation Response, A J. Freddi, M J. Arzadun, A A. Pissani, P Sastre
IGC Proceedings (1977-2023)
Oat forage (Avena sativa), which has low soluble carbohydrates (SC) and high soluble protein (SP) content, can reduce liveweight gain of grazing animals; supplementation with grain and low degradability protein may serve to counteract the effect. A grazing trial was carried out on two soils with different nitrogen (NO3 -) availability, from 16 April 1994 to 6 September 1994. Steers were randomly allocated to 3 treatments: low nitrogen (LN), high nitrogen (HN) and high nitrogen with supplementation (HNS). Forage of LN showed lower SP (p<0.05) during the first month of grazing, and higher SC (p<0.05), than HN during the first two months of the trial. Animal liveweight gain was: 892, 909 and 775 g/an/day for LN, HNS and HN, respectively, with animals in HN of significantly lower liveweight gain (p<0.05). Under the conditions of this trial, animals grazing on oat forage with lower SC and higher SP had lower liveweight gain and responded to supplementation.
Native And Introduced Forage Systems For Cow-Calf Production, S W. Coleman, W A. Phillips, J D. Volesky
Native And Introduced Forage Systems For Cow-Calf Production, S W. Coleman, W A. Phillips, J D. Volesky
IGC Proceedings (1977-2023)
The objectives of this study was to compare a highly productive introduced warm-season perennial grass to native range for cowcalf production over two years. Three systems, 1) native range with pelleted soybean or cottonseed meal as winter protein supplement (NC); 2) native range with wheat pasture (NW); and 3) Plains Bluestem with wheat pasture (PB) were compared. Protein supplements were given twice weekly and cows grazing wheat pasture were allowed 6 hrs to graze. Cows on NW were heavier with higher condition at breeding in the spring of 1994 than those on NC and cows on PB were heavier and …
Rotational Stocking And Soil Nutrient Distribution On Hawaiian Grasslands, B W. Mathews, J P. Tritschler, L E. Sollenberger
Rotational Stocking And Soil Nutrient Distribution On Hawaiian Grasslands, B W. Mathews, J P. Tritschler, L E. Sollenberger
IGC Proceedings (1977-2023)
A naturalized kikuyu (Pennisetum clandestinum Hochst. ex Chiov.) grassland was grazed by heifers (Bos taurus) for 2 years to determine the effects of two rotational stocking methods (short vs. long grazing periods) on soil N, P, K, Ca, Mg, and S distribution in paddocks with natural shade. Additionally, kikuyugrass-greenleaf desmodium (Desmodium intortum Urb.) paddocks were used to evaluate soil nutrient distribution in rotationally stocked paddocks (long grazing periods) without shade. In the study with shade, soil N, P, and K distribution did not differ between stocking methods. These nutrients accumulated within 15 m of shade, but did not …
Relationship Between Height And Sward Quality In Rotational Dairy Systems, M R. Mosquera-Losada, A Gonzalez-Rodriguez
Relationship Between Height And Sward Quality In Rotational Dairy Systems, M R. Mosquera-Losada, A Gonzalez-Rodriguez
IGC Proceedings (1977-2023)
Height is a good guide for management in dairy systems.Intake by dairy cows depends on amount offered and quality of pasture and for this reason a relationship between that offered and pasture quality with height should be studied. The experiment was conducted in NW of Spain with three different stocking rates in dairy systems. A lower quality sward was found in the taller offered pasture as indicated by its higher ADF and lower CP percentages. Total sward ADF (kg x ha-a) was higher in taller offered pasture, which indicated a lower pasture quality, however the total CP was positively related …
Non-Destructive Methods For The Estimation Of Sward Production, M R. Mosquera-Losada, A Gonzalez-Rodriguez
Non-Destructive Methods For The Estimation Of Sward Production, M R. Mosquera-Losada, A Gonzalez-Rodriguez
IGC Proceedings (1977-2023)
Two non- destructive methods of grass production were compared: grassmeter and sward stick, in order to find an equation for transforming one into the other in dairy rotational systems. Linear, logarithmic and quadratic equations were fitted to the data. Linear equation was preferred by simplicity. General equations which included all the year periods showed no differences between sward stick and grassmeter. A detailed study of the different phenology states showed lower heights with grassmeter than with the sward stick method, which should take into account grazing management height recommendations.
Digital Agriculture Applications In Maize Nutrient Management And Soybean Crop Stands Assessment, Bhawana Acharya
Digital Agriculture Applications In Maize Nutrient Management And Soybean Crop Stands Assessment, Bhawana Acharya
LSU Master's Theses
High soil moisture from frequent excessive precipitation can reduce maize (Zea mays L.) yield and increase nitrogen (N) loss. Early-stage soybeans (Glycine max) are also susceptible to damage under these conditions. Traditional methods for assessing N status in maize and plant stands in soybean are labor-intensive and time-consuming. In this study, UAV remote sensing was used to assess maize N status under different N rates and excessive soil moisture. For soybeans, we compared a blob detection method with the YOLOv8 model to estimate plant density using ground images from a handheld camera. Additionally, YOLOv8 performance was evaluated …
Formation And Development Of The Center For Grassland Studies At The University Of Nebraska, M A. Massengale
Formation And Development Of The Center For Grassland Studies At The University Of Nebraska, M A. Massengale
IGC Proceedings (1977-2023)
The Center for Grassland Studies was formed at the University of Nebraska in 1994 to implement focused interdisciplinary research, educational, and service programs and activities that emphasize the role of grasslands as a natural resource and conservation measure and that enhance the efficiency, profitability, sustainability, and aesthetic value of grasslands, wetlands, and turf. Although the Center is still in a developmental stage, it appears to be accomplishing those objectives.
The Transformation Of Greek Grasslands Under The Impact Of Socio-Economic Factors, R Thanopoulos
The Transformation Of Greek Grasslands Under The Impact Of Socio-Economic Factors, R Thanopoulos
IGC Proceedings (1977-2023)
The impact of socio-economic factors on the transformation of Greek grasslands is examined. Factors like urbanisation, migration, collapse of traditional way of life, social pressure for land distribution, intensification of agriculture shaped the evolution of grasslands. Thus, these factors should be taken into consideration for the planning of grasslands management.
Transcriptome-Wide Genetic Variations In The Legume Genus Leucaena For Fingerprinting And Breeding, Yong Han, Alexander Abair, Julian Van Der Zanden, Madhugiri Nageswara-Rao, Saipriyaa Purushotham Vasan, Roopali Bhoite, Marieclaire Castello, Donovan Bailey, Clinton K. Revell Dr, Chengdao Li, Daniel Real
Transcriptome-Wide Genetic Variations In The Legume Genus Leucaena For Fingerprinting And Breeding, Yong Han, Alexander Abair, Julian Van Der Zanden, Madhugiri Nageswara-Rao, Saipriyaa Purushotham Vasan, Roopali Bhoite, Marieclaire Castello, Donovan Bailey, Clinton K. Revell Dr, Chengdao Li, Daniel Real
Grain and Other Field Crops Research Articles
Leucaena is a versatile legume shrub/tree used as tropical livestock forage and in timber industries, but it is considered a high environmental weed risk due to its prolific seed production and broad environmental adaptation. Interspecific crossings between Leucaena species have been used to create non-flowering or sterile triploids that can display reduced weediness and other desirable traits for broad use in forest and agricultural settings. However, assessing the success of the hybridisation process before evaluating the sterility of putative hybrids in the target environment is advisable. Here, RNA sequencing was used to develop breeding markers for hybrid parental identification in …
Revisiting Fr13a For Submergence Tolerance: Beyond The Sub1a Gene, Waseem Hussain, Mahender Anumalla, Abdelbagi M. Ismail, Harkamal Walia, Vistas Kumar Singh, Ajay Kohli, Sankalp Bhosale, Hans Bhardwaj
Revisiting Fr13a For Submergence Tolerance: Beyond The Sub1a Gene, Waseem Hussain, Mahender Anumalla, Abdelbagi M. Ismail, Harkamal Walia, Vistas Kumar Singh, Ajay Kohli, Sankalp Bhosale, Hans Bhardwaj
Department of Agronomy and Horticulture: Faculty Publications
Rice landrace FR13A is the original donor of the SUB1A gene. FR13A harbors hidden genetic variation that surpasses the submergence tolerance level of SUB1A. Here, we provide an overview of the unique features of FR13A associated with exceptional recovery ability that have been overlooked since the significant discovery of the SUB1 locus. We present a detailed overview of how to underpin the new genes associated with the recovery ability seen in FR13A. Finally, we propose a unique approach to develop rice cultivars that surpass submergence tolerance beyond the SUB1 locus from FR13A.
Data Requirements For Whole-Farm Economic Analysis Of Grazing Alternatives, R O. Burton Jr
Data Requirements For Whole-Farm Economic Analysis Of Grazing Alternatives, R O. Burton Jr
IGC Proceedings (1977-2023)
The purpose of this paper is to contribute to better communications among the agronomists, animal scientists, and agricultural economists on interdisciplinary teams, that wish to provide useful information to forage producers. This is accomplished by discussing major issues and data requirements for whole-farm economic analysis.
Native Grasslands Of Yugoslavia As A Potential For "Biologically High Quality Food" Production - To Be Preserved And Used For The Benefit Of All, Djordjevic-Milosevic Suzana, Negovanovic Dragan, Zakonovic Miodrag
Native Grasslands Of Yugoslavia As A Potential For "Biologically High Quality Food" Production - To Be Preserved And Used For The Benefit Of All, Djordjevic-Milosevic Suzana, Negovanovic Dragan, Zakonovic Miodrag
IGC Proceedings (1977-2023)
Natural grasslands are the base of the livestock production in the hilly-mountainous regions of Yugoslavia. Poor economic power of the owners of these areas brought about a complete dying out of agricultural production in these regions in the last few years. In the same time, the lack of financial resources made it impossible for the farmers to use the fertilisers, protective and other chemical agents which result in a high degree of environmental preservation. Due to current economic policy at this time the population has moved out and there is no industrialisation. The revival of agriculture on the hilly-mountainous regions …
Some Economics Problems Of Range Resource Analysis In Free And Open Access Environment, E Tedonkeng Pamo
Some Economics Problems Of Range Resource Analysis In Free And Open Access Environment, E Tedonkeng Pamo
IGC Proceedings (1977-2023)
Economic analysis has been the traditional means by which the costs and benefits of rangeland conservation and sustained development have been identified. Conventional analysis has proved inadequate for dealing with the following realities : (1) open access in circumstances of poorly defined common-resource ownership tends to encourage over exploitation; (2) many costs of rangeland degradation involve externalities that will occur in the future; (3) the values of preservation and sustained management are substantial and can be translated into financial assistance; and (4) benefits from rangeland are not often appreciated because of lack of knowledge from rangeland. Recent approaches to economic …
Studies On The Distribution And Formation Of The Meadows In China, Feng Guojun, Zhang Xiujun, Zhu Libuo, Wei Shaocheng, Zhang Yongliang
Studies On The Distribution And Formation Of The Meadows In China, Feng Guojun, Zhang Xiujun, Zhu Libuo, Wei Shaocheng, Zhang Yongliang
IGC Proceedings (1977-2023)
The lowland meadows are distributed on the Northeast Plains in the temperate zone in China, and its area became less and less with an increase of longitude. There are some regularities for the distribution of montane meadows, sub-montane meadows and cold-alpinal meadows. And the distribution and formation for meadows are independent upon the zonal climate and their environmental soil moisture.
Sward Structure Under Continuous And Rotation Grazing, V Pavlu, J Velich
Sward Structure Under Continuous And Rotation Grazing, V Pavlu, J Velich
IGC Proceedings (1977-2023)
Sward structure under continuous (CG) and rotational (RG) grazing system was studied at an experimental pasture in the Jizerské hory mountains. Herbage mass and vertical distribution was assessed by cutting ten quadrats (0.1 x 0.5 m) and separated into grass, white clover, dandelion, other forbs and dead material. The proportions of grasses was higher at RG (on average 51% of the pasture mass) than at CG (41%). In the years with normal amount and distribution of precipitation the proportion of white clover was higher at CG (17%) than at RG (9%). The lack of summer precipitation damaged more significantly the …
Beef Cattle Production On Renovated Grass Pastures In Savannas Of Brazil, V.P B. Euclides, M.C M. Macedo, M P. Oliveira
Beef Cattle Production On Renovated Grass Pastures In Savannas Of Brazil, V.P B. Euclides, M.C M. Macedo, M P. Oliveira
IGC Proceedings (1977-2023)
A 3-year grazing trial was conducted, to study animal production on degraded grass pastures, renovated by two levels of fertilization. All paddocks were divided into halves: one received 1.5 t/ha of dolomitic limestone, 400 kg/ha of a fertilizer formula 0-16-18 and 50 kg/ha of microelements (FL1); and the other 3.0 t/ha , 800 kg/ha and 50 kg/ ha of the same fertilizers (FL2). Productivity on FL2 pastures was greater than that on FL1 pastures, averaging 565 and 395 kg of liveweight gain (LWG)/ha/year, respectively. For all grasses the productivity in both fertilizer treatments decreased linearly from the first to the …
Pasture Attributes And Live-Weight Gain Of Lambs Grazing With Different Supplementation Levels, P A. Martinez-Hernandez, M Meza-Nieto, J Perez-Perez, R Barcena, J G. Herrera
Pasture Attributes And Live-Weight Gain Of Lambs Grazing With Different Supplementation Levels, P A. Martinez-Hernandez, M Meza-Nieto, J Perez-Perez, R Barcena, J G. Herrera
IGC Proceedings (1977-2023)
The purpose of this study was to determine pasture attributes, liveweight gain and stocking rate from a mixed pasture grazed by lambs recieving different supplementation levels. There were four treatments: in two, lambs grazed at 4 or 8% herbage allowance, no supplement; in the other two, lambs grazed at 4% herbage allowance plus a concentrate to cover 25 and 30 or 50 and 60% of estimated daily needs of metabolizable energy and crude protein. Pasture was of perennial and annual ryegrass, orchard grass and red clover. Pre and postgrazing forage mass, crude protein and dead material were not different (P …