Reasons For The Premature Decline In Astragalus Adsurgens Stands In Kerqin Sandy Land,
2023
Chinese Academy of Agricultural Sciences, China
Reasons For The Premature Decline In Astragalus Adsurgens Stands In Kerqin Sandy Land, Qizhong Sun, Z. L. Wang, J. G. Han, Y. W. Wang, G. R. Liu
IGC Proceedings (1977-2023)
Diseases partly account for reductions in Astragalus adsurgens stand longevity. The effect of some cultural practices on the control of pests and diseases have been reported (Hou, 1986; Nan, 1996), but few reports have detailed the relationship among soil fertiliser status, diseases and premature stand decline. This study was conducted to investigate these relationships in order to extend the longevity of Astragalus adsurgens stands.
Improvement Of The Mediterranean Agro-Silvopastoral System Montado,
2023
INIAP, Portugal
Improvement Of The Mediterranean Agro-Silvopastoral System Montado, J. Potes, H. Babo, D. Navas
IGC Proceedings (1977-2023)
"Montado" is an old man-made agro-silvopastoral system, with three vegetation components (trees, shrubs and herbs) used for multiple species animal husbandry in extensive production systems (Potes & Babo, 2003). Several authors have reported on the improvement of Mediterranean annual self-reseeding pastures (Espejo-Diaz, 1996) and increased stocking rates.
Tiller Dynamic Of Guineagrass (Panicum Maximum) Under Defoliation,
2023
University of Zulia, Venezuela
Tiller Dynamic Of Guineagrass (Panicum Maximum) Under Defoliation, T. Clavero, R. Razz
IGC Proceedings (1977-2023)
Guineagrass (Panicum maximum) is a perennial warm season bunchgrass native to Africa that has been introduced to many tropical areas. Its management is important because of its important role in animal production. Total production of herbage and the persistence of tufted grasses can be markedly reduced when the grass is defoliated too frequently and too intensively (Clavero, 1997). In order to determine the proper management for optimum production and long term persistence, it is important to study the effect of cutting practices on tiller dynamics of guineagrass.
Effect Of Plant Population And Phosphorus Fertilizer Application On Dry Matter And Seed Yield Of Two Lablab (Lablab Purpureus) Varieties In Botswana,
2023
Department of Agricultural Research, Botswana
Effect Of Plant Population And Phosphorus Fertilizer Application On Dry Matter And Seed Yield Of Two Lablab (Lablab Purpureus) Varieties In Botswana, K. C. Kawonga, F. P. Wandera, S. Mangope, P. Mutshewa, B. M. Lefofe
IGC Proceedings (1977-2023)
Lablab has high potential as a protein source to grazing livestock especially during the dry season in arid Botswana. It produced 8.5t dry matter (DM)/ha and had 14% crude protein with 60% digestibility (APRU, 1988; Aganga, 2003). Lack of agronomic data on lablab production was probably the reason why some farmers in Botswana got yields as low as 300 kg/ha (APRU, 1987). Therefore, a trial of two lablab varieties was conducted to determine the effect of plant population and phosphorus (P) on DM yield.
Forage Yield And Structural Traits Of Tanzaniagrass (Panicum Maximum) At Four Canopy Heights,
2023
EMBRAPA, Brazil
Forage Yield And Structural Traits Of Tanzaniagrass (Panicum Maximum) At Four Canopy Heights, Carlos A. M. Gomide, Ana C. Ruggieri, R. A. Reis, J. A. Gomide, J. H. De A. Rangel, E. O. Almeida
IGC Proceedings (1977-2023)
Pasture forage production is based on the growth of tillers (Hodgson, 1990). Although the effect of canopy height and structural traits on productivity of temperate grasses are well known e.g. (Bircham & Hodgson,1983; Binnie & Chestnut, 1994) tiller studies on tropical pasture species are scarce.
Forage Yield In Two Tropical Grasses At Different Cutting Intervals And N Levels,
2023
Universidad Autónoma Chapingo, Mexico
Forage Yield In Two Tropical Grasses At Different Cutting Intervals And N Levels, Enrique Cortés Díaz, H. Diaz-Solis, A. Saldívar-Fitzmaurice, W. Grant, A. Martínez-Garza, A. Martínez-Hernandez
IGC Proceedings (1977-2023)
Cutting interval and N level determine forage yield in grasses (Whitehead, 1995). Coastcross-1 (Cynodon dactylon and Tifton 68 (Cynodon spp) are tropical grasses of high forage yield potential (Burton, 1972; Burton et al., 1993).
Root Systems In Tropical Pasture Restoration Treatments In Rondônia, Brazil,
2023
CENA, Brazil
Root Systems In Tropical Pasture Restoration Treatments In Rondônia, Brazil, M. C. Piccolo, K. C. Augusti, C. Neill, L. Fante Junior, M. Bernoux, C. C. Cerri
IGC Proceedings (1977-2023)
Soil management can influence physical and chemical soil properties, with fundamental differences in root system development. Our objectives were to quantify carbon (C) and nitrogen (N) concentrations, dry mass and length of roots subjected to different restoration treatments of degraded pasture.
Economic Methodology For Pasture Grass And Legume Seed Production,
2023
Instituto de Ciencia Animal, Cuba
Economic Methodology For Pasture Grass And Legume Seed Production, D. M. Cino, G. Febles, M. F. Díaz, F. Funes
IGC Proceedings (1977-2023)
The importance and complexity of the industrial process of seed production is known. Thus, conditions should be established for achieving and efficiently controlling the activity in order to know production costs, selling prices and to guarantee economic efficiency. The objective of this paper was to evaluate from an economic point of view, seed production of species of tropical grasses and legumes based on a preliminary methodology facilitating the control of the whole activity.
Integration Of Forage Production In Rice-Based Cropping Systems For Mitigating Forage Crisis Of Ruminant Livestock - Studies In Bangladesh,
2023
Bangladesh Agricultural University, Bangladesh
Integration Of Forage Production In Rice-Based Cropping Systems For Mitigating Forage Crisis Of Ruminant Livestock - Studies In Bangladesh, M. A. Akbar, M. S. U. Bhuiyan, M. S. Islam
IGC Proceedings (1977-2023)
Intensive rice cropping in Bangladesh is causing alarming shortages of forage and low ruminant productivity. This is also causing degeneration of soil fertility. Therefore it is imperative to identify some approach to integrate fodder production into rice cropping systems on rural farms. The integration of legume forage may improve soil fertility and soil structure, thus enhancing crop yield and may provide high quality feed for livestock (Haque 1992). Studies were done to investigate the effects of rice/forage integration on forage yield, soil fertility and also on milk yield of cows fed on the grown forages.
Evaluating The Economic And Environmental Sustainability Of Integrated Farming Systems,
2023
U.S. Department of Agriculture
Evaluating The Economic And Environmental Sustainability Of Integrated Farming Systems, C. A. Rotz, M. A. Sanderson, M. Wachendorf, F. Taube
IGC Proceedings (1977-2023)
Economic and environmental sustainability has become a major concern for forage-based animal production in Europe, North America and other parts of the world. Development of more sustainable farming systems requires an assimilation of experimental and modelling research. Field research is critical for supporting the development and evaluation of models, and modelling is needed to integrate farm components for predicting the long-term effects and interactions resulting from farm management changes. Experimentally supported simulation provides a tool for evaluating and comparing farming strategies and predicting their effect on the watershed, region and beyond.
Simulation Of Pasture Phase Options For Mixed Livestock And Cropping Enterprises,
2023
CSIRO Plant Industry, Australia
Simulation Of Pasture Phase Options For Mixed Livestock And Cropping Enterprises, L. Salmon, A. D. Moore, J. F. Angus
IGC Proceedings (1977-2023)
In southern Australia, 50% of grain-producing farms also run beef and/or sheep enterprises. Legume pasture leys are used to replace soil nitrogen and manage crop disease risks. Deep-rooted perennials, predominantly lucerne (Medicago sativa), are replacing annual Trifolium subterraneum-based leys to increase pasture production. They also have the environmental benefits of limiting soil acidity, rising water tables and dryland salinity. After recent droughts depletion of soil water by lucerne has penalised wheat yields. Decision support tools can help farmers evaluate the long-term effects of grazed annual and perennial leys on animal and crop production at the whole farm …
Overseeding Cereal Rye And Annual Ryegrass Into Soyabean For Forage As Part Of A Multifunctional Cropping System,
2023
University of Missouri
Overseeding Cereal Rye And Annual Ryegrass Into Soyabean For Forage As Part Of A Multifunctional Cropping System, L. B. Smith, R. L. Kallenbach
IGC Proceedings (1977-2023)
In the lower Midwest, the longest period of inadequate forage supply from pasture is from mid- December through mid-March (Matches & Burns, 1995). Livestock producers in this region are looking for high quality forage for winter grazing (Kallenbach et al., 2003). Annual ryegrass (Lolium multiflorum Lam.) and cereal rye (Secale cereale L.) are two forages that Missouri's beef producers are interested in to extend the grazing season. The objective of this research was to determine how seeding date impacts the establishment, growth, and forage production of annual ryegrass and cereal rye when planted into soyabean fields …
Previous Grass-Lucerne Mixtures Affect Barley Yield And Quality In A Semiarid Location Of The Canadian Prairie Region,
2023
Agriculture and Agri-Food, Canada
Previous Grass-Lucerne Mixtures Affect Barley Yield And Quality In A Semiarid Location Of The Canadian Prairie Region, P. G. Jefferson, F. Selles, R. P. Zentner, R. Lemke
IGC Proceedings (1977-2023)
In the semiarid region of the Canadian prairies perennial forages are not rotated with annual crops because previous experiments reported negative impacts (Kilcher and Anderson 1963; Campbell et al. 1990). However, previous research used persistent species while short-lived species could have less adverse effect. Our objective was to compare three grass species in three lucerne mixtures terminated with tillage or herbicide for effects on barley grain, N concentration, and N uptake.
Canavalia Brasiliensis: A Multipurpose Legume For The Sub-Humid Tropics,
2023
CIAT, Columbia
Canavalia Brasiliensis: A Multipurpose Legume For The Sub-Humid Tropics, A. Schmidt, M. Peters, A. Franco, R. Schultze-Kraft
IGC Proceedings (1977-2023)
Canavalia brasiliensis Mart. ex Benth. ("Brazilian jackbean") is a weakly perennial, prostrate to twining herbaceous legume with a wide natural distribution in the New World tropics and subtropics. In comparison with C. ensiformis ("jackbean"), research reports on C. brasiliensis are scattered and restricted to studies done in Latin America. The species develops a dense and extensive, deep-reaching root system and subsequently tolerates a 5-6 month dry period. Based on studies that generally were done with only one genotype, it is adapted to a wide range of soils, including very acid, low-fertility soils. Its main use is as green manure, for …
Relative Forage Yield Of Intercropped Lucerne (Medicago Sativa L.) And Winter Forage Cereals,
2023
Universidad Nacional de Río Cuarto, Argentina
Relative Forage Yield Of Intercropped Lucerne (Medicago Sativa L.) And Winter Forage Cereals, T. Pereyra, H. Pagliaricci, A. Ohanian
IGC Proceedings (1977-2023)
In tropical regions of the world intercropping is mainly associated with the production of maize for grain, while in temperate areas it is associated with the efficient production of forage. There is increasing interest in the development of cereal - legume intercropping in some temperate regions (reviewed by Mason & Pritchard, 1987). The aim of this study was to compare the relative forage yield of intercropped lucerne and cereal.
The Effectiveness Of Nitrogen Rates On Winter Wheat And White Clover Bi-Cropping Grown For Silage,
2023
Agricultural University of Wroclaw, Poland
The Effectiveness Of Nitrogen Rates On Winter Wheat And White Clover Bi-Cropping Grown For Silage, J. Sowiński
IGC Proceedings (1977-2023)
Whole-crop cereals harvested for silage cover c. 500,000 ha in Europe (Wilkins & Kirilov, 2003). Generally dry matter (DM) yield of small-grain cereals is lower than that of maize. In some investigations, DM yield (of high nutritional value) reached 15 t/ha (Balsdon et al. 1997; Clements et al. 1997). Whole-crop silage produced in a bi-cropping system offers more balanced forage compared to pure cereals and legumes. Nitrogen rates can be decreased with bi-cropping. The aim of this investigation was to compare nitrogen effectiveness using two methods of winter wheat cultivation: direct drilling into stubble and bi-cropping with …
The Influence Of Winter Wheat And White Clover Bi-Cropping System On White Clover Sward Parameters,
2023
Agricultural University of Wroclaw, Poland
The Influence Of Winter Wheat And White Clover Bi-Cropping System On White Clover Sward Parameters, J. Sowiński
IGC Proceedings (1977-2023)
Whole-crop silage produced in a bi-cropping system represents a low-input forage production system (Clements et al., 1997). Depressing competition of white clover (by mowing or spraying with herbicides) when winter wheat starts its growth is necessary in this system. Winter wheat also competes with white clover during crop growth. The number of growing points as well as the length and weight of stolon are the main parameters that characterise the persistence of white clover (Jorgensen & Ledgard, 1997; Marriott & Haystead 1990). The purpose of the present investigation was to study the effects of a bi-cropping system on some …
Options For Improved Biomass Production In Feeding Systems For Dairying In High Rainfall Environments In New Zealand,
2023
New Zealand Institute for Plant and Food Research Limited, New Zealand
Options For Improved Biomass Production In Feeding Systems For Dairying In High Rainfall Environments In New Zealand, John M. De Ruiter, D. R. Wilson, S. Maley, S. M. Henton
IGC Proceedings (1977-2023)
New Zealand dairy production has expanded into marginal climates and soil types on the premise of excellent profitability and efficient utilisation of forage. Annual pasture production in the cool West Coast of the South Island (rainfall 2042-2933 mm) is15,000 kg. Increased farm production and feeding of high quality biomass, from imported feed or supplementary feed crops grown on- farm, are needed to improve milk solid output. Small plot trials with spring and early summer-sown brassicas, cereals and maize were the focus for development of systems to maximise and manage the seasonal feed supply. The effect of sowing time, fertiliser timing …
Implications Of The Use Of Grazing Sheep On Kiwi Fruit Orchard,
2023
Embrapa, Brazil
Implications Of The Use Of Grazing Sheep On Kiwi Fruit Orchard, C. H. E. C. Poli, R. C. Gomes, P. Cinel Filho, M. F. Gomes, A. Zborowki, G. Pires, J. L. Rigon
IGC Proceedings (1977-2023)
In the southern part of Brazil there is an important area of kiwi fruit, mainly cultivated by small farmers. The use of sheep under trees of kiwi fruits could be an interesting alternative for small farmers to reduce their mowing costs, to improve their income and to provide meat for the farmers' family. However there is a lack of information about the damage that the animals could cause to kiwi fruit plants. The objective of this study was to monitor the effect of the use of sheep on a kiwi fruit orchard.
The Effect Of Cutting Regime And Cultivar On Longevity Of Pure Lucerne Stands In Latvia,
2023
Latvia University of Agriculture, Latvia
The Effect Of Cutting Regime And Cultivar On Longevity Of Pure Lucerne Stands In Latvia, Z. Gaile
IGC Proceedings (1977-2023)
Lucerne growing is important for high and excellent quality yields of hay or silage without application of N fertilisers, as well as for increasing crop diversity in crop rotation systems. It is comparatively expensive to establish lucerne stands in Latvia. Different aspects can affect longevity of lucerne stands: suitability of cultivar to specific conditions, soil characteristics, different stress conditions and cutting management, including frequency and height of cutting, and critical rest period in autumn (Sheaffer et al., 1988). The aim of our study was to evaluate the persistence of lucerne stands without renovation while obtaining reasonable yields.
