Forage production potential of oat (Avena sativa)-lucerne (Medicago sativa L.) intercropping systems

2018 ◽  
Vol 10 (2) ◽  
pp. 132
Author(s):  
VC Ganvit ◽  
Vaishali Hsurve ◽  
Seema Sharma ◽  
JB Ganvit
Keyword(s):  
Medicago Sativa ◽  
Avena Sativa ◽  
Forage Production ◽  
Production Potential ◽  
Medicago Sativa L

Farmer-directed on-farm experimentation examining the impact of companion planting barley and oats on timothyalfalfa forage establishment in central Newfoundland

2004 ◽  
Vol 84 (1) ◽  
pp. 217-221 ◽  
Author(s):  
D. Spaner and A. G. Todd
Keyword(s):  
Hordeum Vulgare ◽  
Medicago Sativa ◽  
Avena Sativa ◽  
Phleum Pratense ◽  
Forage Production ◽  
Hordeum Vulgare L ◽  
Medicago Sativa L ◽  
On Farm ◽  
The Impact ◽  
Phleum Pratense L

Oats (Avena sativa L.) or barley (Hordeum vulgare L.) sown at increasing seeding rates of 23, 45 and 68 kg ha-1 with a timothy (Phleum pratense L.)-alfalfa (Medicago sativa L.) mixture (harvested at cereal soft dough) resulted in increasing forage yields containing decreasing alfalfa, crude protein, P and Ca percentage in the planting year. Barley out-yielded oats by 11% in the planting year. Oats or barley sown at seeding rates up to 68 kg ha-1 do not impede underseeded forage establishment or forage production in the subsequent year in central Newfoundland. The implications of farmer-directed on-farm experimentation are discussed. Key words: Hordeum vulgare L., Avena sativa L., Phleum pratense L, Medicago sativa L., underseeding

Estimación de biomasa aérea de forrajes de invierno bajo riego a través de un dron

2019 ◽  
Vol 12 (4) ◽  
Author(s):  
Francisco Gavi Reyes ◽  
César Botello-Aguillón ◽  
Leonardo Tijerina-Chávez ◽  
Arturo Galvis-Spíndola ◽  
Rodrigo Roblero-Hidalgo
Keyword(s):  
Medicago Sativa ◽  
Avena Sativa ◽  
Medicago Sativa L

E Objetivo: Desarrollar un procedimiento para estimar biomasa con imágenes digitales captadas desde un dron y modelación 3D (ID-Dron-3D) aplicable en alfalfa (Medicago sativa L.) y avena forrajera (Avena sativa L.). Diseño/metodología/aproximación: Con una cámara digital acoplada al dron se obtuvieron imágenes antes de la cosecha de los cultivos, que fueron procesadas con software para luego estimar volumen de biomasa. En cada cultivo se midió altura de la planta y área cosechada, volumen aparente y real de biomasa, y peso de biomasa fresca y seca. Resultados: Con base en el análisis de regresión se obtuvieron modelos lineales a una p<0.05 para predecir: biomasa fresca en avena (R2=0.70) y alfalfa (R2 =0.47); y biomasa seca en avena (R2=0.78) y en alfalfa (R2=0.31) mediante ID-Dron-3D. Limitaciones del estudio/implicaciones: Considerando las R2 de los modelos obtenidos, los resultados en la avena forrajera fueron mejores, respecto a los detectados en alfalfa, lo cual se puede deber a la mayor variabilidad de la cobertura vegetal, ya que, en algunas unidades de muestreo, las plantas de alfalfa no cubrían completamente el suelo. Hallazgos/conclusiones: El rendimiento de biomasa fresca y seca de ambos cultivos se correlacionó significativamente con su respectivo volumen aparente estimado con imágenes digitales tomadas desde un dron y su procesamiento 3D (ID-Dron-3D).

The Genus Pithomyces in South Africa

Bothalia ◽  
1972 ◽  
Vol 10 (4) ◽  
pp. 509-516 ◽  
Author(s):  
W. F. O. Marasas ◽  
Ingrid H. Schumann
Keyword(s):  
South Africa ◽  
Medicago Sativa ◽  
South African ◽  
Lolium Perenne ◽  
Avena Sativa ◽  
Free State ◽  
Eastern Cape Province ◽  
Eastern Cape ◽  
Lolium Perenne L ◽  
Medicago Sativa L

Descriptions are given of South African isolates of  Pithomyces sacchari (Speg.) M. B. Ellis, Pithomyces chartarum (Berk. Curt.) M. B. Ellis and  Pithomyces karoo  Marasas Schumann, sp. nov.  P. sacchari and P. chartarum were isolated from Medicago sativa L. seed.  P. chartarum was also isolated from dead leaves of Lolium perenne L. and  Sporobolus capensis (Willd.) Kunth. plants from artificial pastures in the eastern Cape Province.  P. karoo was isolated from stems of Gnidia polycephala (C.A. Mey.) Gilg and  Rhigozum trichotomum Burch, from the Karoo, Cape Province and from Avena sativa L. stubble collected in the Orange Free State.

Short-lived intercrop forages affect long-term yields of alfalfa and wildrye grass mixtures

2002 ◽  
Vol 82 (1) ◽  
pp. 67-74
Author(s):  
A. J. Leyshon ◽  
P. G. Jefferson ◽  
J. Waddington
Keyword(s):  
Medicago Sativa ◽  
Avena Sativa ◽  
Forage Yield ◽  
Perennial Grasses ◽  
Forage Production ◽  
Elymus Trachycaulus ◽  
Psathyrostachys Juncea ◽  
Russian Wildrye ◽  
Slender Wheatgrass

Widely seeded rows (>60 cm) of perennial grasses have exhibited greater long-term yield stability, but allow weed invasion in the first years after establishment. A 9-yr study was conducted at a semiarid site at Swift Current, Saskatchewan, Canada, to determine the effects of intercropping oats (Avena sativa L.) and slender wheatgrass [Elymus trachycaulus (Link) Gould ex Shinners] between rows of Russian wildrye [Psathyrostachys juncea (Fisch.) Nevski], and Altai wildrye [Leymus angustus (Trin) Pilger] seeded in 90-cm spacings either alone or in alternate rows with alfalfa (Medicago sativa L.). Two rows of oats depressed grass forage production in the year following establishment. Slender wheatgrass intercrops reduced grass forage yield and alfalfa forage yield. However, slender wheatgrass contributed to increased total forage yields while it persisted in the mixture. By the fifth year, it had disappeared from the Russian wildrye plots but persisted 2 more years when intercropped with Altai wildrye. Interseeded companion crops, either annual or short-lived perennials, for forage will give short-term yield gains, but long-lived perennial forages may not recover from the competition in the long-term. Key words: Avena sativa, Elymus trachycaulus, Psathyrostachys juncea, Leymus angustus, Medicago sativa, forage yield

scholarly journals Características productivas de cultivos forrajeros en sistemas de producción de leche, Nariño, Colombia

2020 ◽  
pp. 177-192
Author(s):  
David Felipe Nieto-Sierra ◽  
Diego Hernán Meneses-Buitrago ◽  
Sonia Patricia Morales-Montero ◽  
Filadelfo Hernández-Oviedo ◽  
Edwin Castro-Rincón
Keyword(s):  
Medicago Sativa ◽  
Vicia Faba ◽  
Beta Vulgaris ◽  
Avena Sativa ◽  
Raphanus Sativus ◽  
Raphanus Sativus L ◽  
Medicago Sativa L

Introducción. El pasto es la fuente principal de alimentación de los rumiantes, sin embargo, este no es capaz de aportar los nutrientes necesarios requeridos para su mantenimiento y productividad, sumado a esto, en el trópico alto es muy notable la estacionalidad de producción de forrajes, por lo que es muy importante conocer otras alternativas de alimentación. Objetivo. Caracterizar y evaluar diez cultivos forrajeros como fuentes alternativas de suplementación en sistemas de producción de leche en el trópico alto de Nariño. Materiales y métodos. El estudio se realizó en tres localidades (L1, L2 Y L3) representativas de la cuenca lechera del departamento de Nariño entre noviembre de 2016 y setiembre de 2017. Se empleó un diseño de bloques completos al azar (BCA) con diez tratamientos Vicia faba (alpargata), Vicia faba (roja), Vicia faba (común), Zea mayz var. ICA V-305, Raphanus sativus L., Beta vulgaris, Avena sativa var. Cayuse, Phalaris sp., Medicago sativa L. var. moapa, Medicago sativa L. var. 10 10, tres repeticiones y comparación de medias al 0,05. Al momento de la cosecha se estimó: rendimiento de forraje verde y materia seca, proteína cruda (PC), fibra detergente neutro (FDN), fibra detergente ácido (FDA), lignina, hemicelulosa, digestibilidad de la materia seca y energía neta de lactancia (ENL). Resultados. Las especies destacadas fueron la haba (las tres variedades) y la remolacha forrajera, por su rendimiento y calidad nutricional, las cuales presentaron valores entre 7,48 y 20,24 % para PC y 1,14 y 1,49 Mcal kg-1 para ENL. Se presentaron diferencias entre tratamientos para cada localidad, tanto en las variables productivas como en las nutricionales. Conclusión. Las especies forrajeras de mayor rendimiento productivo y calidad nutricional fueron la haba (roja, común y alpargata) y la remolacha.

Evaluation of tedera [(Bituminaria bituminosa (L.) C.H. Stirton var. albomarginata]) as a forage alternative for sheep in temperate southern Australia

2012 ◽  
Vol 63 (12) ◽  
pp. 1135 ◽  
Author(s):  
M. C. Raeside ◽  
Z. N. Nie ◽  
S. G. Clark ◽  
D. L. Partington ◽  
R. Behrendt ◽  
...  
Keyword(s):  
Medicago Sativa ◽  
Nutritive Value ◽  
Field Experiments ◽  
Early Winter ◽  
Forage Production ◽  
High Rainfall ◽  
Forage Species ◽  
Bituminaria Bituminosa ◽  
Medicago Sativa L ◽  
Perennial Legume

Bituminaria bituminosa (L.) C.H. Stirton, commonly known as tedera, is a perennial legume of interest in Australia due to its adaptation to Mediterranean environments. Field experiments were conducted at two sites in Victoria, Australia, a high rainfall site at Hamilton and a low rainfall site at Bealiba, to evaluate tedera var. albomarginata lines against other forage species. At Hamilton, tedera achieved similar seedling densities to lucerne (Medicago sativa L.) following sowings in late spring 2009 and early winter 2010 (30–60 seedlings/m2). Forage production from the spring-sown tedera was between 1.0 and 2.3 t DM/ha at harvests in March and May 2010, but from May onwards the species failed to remain productive and its content in the swards decreased to become <10%. Forage production from all early winter-sown tedera swards was low (<0.5 t DM/ha). At Bealiba, some of the tedera lines outyielded lucerne. The tedera at Bealiba had a vigour rating of 8.3, on a scale of 1–10, in the summer of 2008–09, after surviving three summers. The tedera lines evaluated are unlikely to persist in cold wet winter environments but in drier zones tedera may persist and offer good DM yields of high nutritive value.

EVALUATION OF FACTORS AFFECTING YIELD REDUCTION IN MATURE ALFALFA (Medicago sativa L.)

1984 ◽  
Vol 64 (4) ◽  
pp. 901-907 ◽  
Author(s):  
E. R. JONES ◽  
R. H. SWAIN ◽  
K. W. BELL ◽  
R. B. CARROLL
Keyword(s):  
Medicago Sativa ◽  
Stand Density ◽  
Yield Reduction ◽  
Root Weight ◽  
Nonstructural Carbohydrates ◽  
Forage Production ◽  
Foliar Diseases ◽  
Total Nonstructural Carbohydrates ◽  
Crown Tissue ◽  
Medicago Sativa L

Alfalfa (Medicago sativa L.) stand longevity continues to be a problem even though progressive management practices are followed. The following parameters were evaluated on mature alfalfa stands to determine what factors were responsible for stand thinning: forage production, stand density, foliar and crown-root diseases, root and crown tissue weights, and total nonstructural carbohydrate levels. Foliar diseases did not affect stand density; however, three of five anthracnose-resistant cultivars had denser stands than susceptible parents. Fusarium infection was quite high but did not appear to be related to stand density. Individual root weight, root mass, and total nonstructural carbohydrates were not good indicators of stand density.Key words: Alfalfa stand longevity, foliar diseases, crown and root rot, root and crown tissue weight, total nonstructural carbohydrates, forage production

scholarly journals Efeitos alelopáticos de algumas leguminosas e gramíneas sobre a flora invasora

1990 ◽  
Vol 47 (1) ◽  
pp. 1-10 ◽  
Author(s):  
A.R.M. Medeiros ◽  
L.A.S. Castro ◽  
A.A. Lucchesi
Keyword(s):  
Medicago Sativa ◽  
Trifolium Repens ◽  
Avena Sativa ◽  
Lolium Multiflorum ◽  
Medicago Sativa L ◽  
Trifolium Repens L

Foram estudados os efeitos alelopáticos produzidos por cinco espécies vegetais: as gramíneas Avena sativa L., e Lolium multiflorum Lamb.; e as leguminosas Vicia sp., Mediaago sativa L. e Trifolium repens L. Canteiros isolados foram preparados, adubados e semeados de acordo com as recomendações técnicas usuais. Nos resultados obtidos observou-se alta incidência de invasoras nos canteiros de Trifolium repens L. e Medicago sativa L., contrastando com os canteiros de Avena sativa L. e Lolium multiflorum Lamb., onde poucas foram as espécies encontradas; enquanto o canteiro de Vicia sp. manteve posição intermediária. Com base nos dados obtidos, pode-se recomendar as duas gramíneas como cultura de cobertura com propriedades alelopáticas, assim como a Vicia sp. quando desejar-se além da redução das plantas invasoras, matéria orgânica para incorporação.

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