Forage production and quality of tropical forage legumes submitted to shading

ABSTRACT: Find shade-tolerant species is essential to the success of silvopastoral systems, increasingly frequent in recent years. In legumes, which have potential of biological nitrogen fixation, there is a great lack of knowledge when in shaded environments.The cultivation of four tropical forage (Neonotonia wightii, Pueraria phaseoloides, Macrotyloma axilare and Arachis pintoi) was evaluated when submitted to artificial shade levels (30, 50 and 70% shade) and in full sun during water and drought seasons. The design used was in randomized complete blocks in a sub-divided plot scheme with four replications. In the Water-season the Forage Peanuts had higher forage production in full sun (11 ton ha-1 DM), and under shade did not differ from Perennial Soybean, higher than the others in all levels of shade. In Drought-season the forage production was 61% lower than in Water-season. The highest crude protein levels were reported in Forage Peanuts, Tropical Kudzu and Perennial Soybean, 19.0; 18.3 and 18.2% respectively in the Water-season. Forage Peanuts is a good option for use in silvopastoral systems although there is a small reduction in forage production (average of 23.7%). In general, species of fabaceae showed a greater reduction in forage production in the period of water deficit; however, shading at levels of 30% to 50% contribute to mitigation of water shortage. Although, there is a small reduction in forage production, withexception of perennial soybeans in dry season, it is advisable to use tropical forage legumes in silvopastoral systems, since forage quality is not affected by shade.

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Performance of temperate and subtropical forage legumes when over-seeding native pastures in the basaltic region of Uruguay

Australian Journal of Experimental Agriculture ◽

10.1071/ea03131 ◽

2005 ◽

Vol 45 (3) ◽

pp. 279 ◽

Cited By ~ 6

Author(s):

D. Real ◽

C. A. Labandera ◽

J. G. Howieson

Keyword(s):

Agricultural Research ◽

Soil Microbiology ◽

Ex Situ ◽

Research Station ◽

Forage Production ◽

Forage Legumes ◽

Plant Breeding Program ◽

Selection Parameter ◽

Native Pastures ◽

Biological Nitrogen

In 1997, an integrated plant breeding program was initiated at the National Agricultural Research Institute (INIA) Uruguay, to develop forage legumes and root nodule bacteria which were able to be productive in co-existence with the native (grass-dominant) vegetation when grazed by cattle and sheep. The program was conducted in parallel with rhizobial strain selection by the Rhizobium–Biological Nitrogen Fixation Unit of the Soil Microbiology Department of the Ministry of Livestock, Agriculture and Fisheries of Uruguay and the Centre for Rhizobium Studies (CRS), Murdoch University, Western Australia. Between 1998 and 2000, 326 temperate and subtropical forage legume species originating from 38 ex-situ seed collections were evaluated in 3 plantings on: red lithosol, black lithosol and vertisol soils at Glencoe Research Station in Uruguay. Row–column field designs were used. Forage production at the end of the second year of evaluation was used as the key selection parameter for the introduced legumes because their success required persistence in the pasture either vegetatively or by natural reseeding. This study identified a set of promising legumes and strains of Rhizobium that are now available for further study and breeding in Uruguay as well as other countries with a similar climate. The methodology developed in this study may be applicable to forage selection programs in which competition between annual and perennial species is expected to influence outcomes.

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How to Quantify Biological Nitrogen Fixation in Forage Legumes in the Field

Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture - Current Plant Science and Biotechnology in Agriculture ◽

10.1007/978-1-4020-8252-8_14 ◽

2008 ◽

pp. 47-48 ◽

Cited By ~ 2

Author(s):

Georg Carlsson ◽

Kerstin Huss-Danell

Keyword(s):

Nitrogen Fixation ◽

Biological Nitrogen Fixation ◽

Forage Legumes ◽

Biological Nitrogen

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IRRIGAÇÃO DE PASTAGENS VIA PIVÔ CENTRAL, NA BOVINOCULTURA DE CORTE.

Irriga ◽

10.15809/irriga.2009v14n4p492-503 ◽

2009 ◽

Vol 14 (4) ◽

pp. 492-503 ◽

Cited By ~ 2

Author(s):

Leonardo Pretto de Azevedo ◽

João Carlos Cury Saad

Keyword(s):

Solar Radiation ◽

Dry Matter ◽

Irrigation System ◽

Economic Feasibility ◽

Forage Production ◽

Advantages And Disadvantages ◽

Forage Plants ◽

Matter Production ◽

Tropical Forage ◽

Center Pivot

Irrigação de pastagens via pivô central, na bovinocultura de corte. Leonardo Pretto de Azevedo1; João Carlos Cury Saad21 Instituto Federal de São Roque, São Roque, SP, [email protected] de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, Botucatu, SP, 1 RESUMO O presente trabalho teve como objetivo apresentar o sistema de irrigação de pastagens via pivô central na bovinocultura de corte brasileira, bem como discutir a viabilidade econômica desta prática em diferentes regiões do país. Foram apresentados fatores importantes na produção de massa seca de forrageiras tropicais, como temperatura, radiação solar, adubação e água. Também foram apresentadas as vantagens e desvantagens do sistema, bem como uma breve discussão de sua viabilidade econômica. Concluiu-se que a irrigação de pastagens pode ser uma técnica economicamente viável para regiões específicas do Brasil, considerando-se os fatores envolvidos e esclarecendo que apenas o fornecimento de água às culturas não resolve o problema da estacionalidade durante o inverno. UNITERMOS: pivô central, forrageiras, viabilidade econômica AZEVEDO, L. P.; SAAD, J. C. C. Pasture irrigation under center pivot for beef cattle. 2 ABSTRACT The aims of this work were to show the pasture irrigation system by center pivot with Brazilian cattle and to discuss the economic feasibility of this technique in different regions of the country. Important parameters to dry matter production of tropical forage plants, as temperature, solar radiation, fertilization, and water requirement were shown Also, the system advantages and disadvantages and a discussion about economic feasibility of this technique were presented. It was concluded that pasture irrigation is a feasible and economical technique to some specific Brazilian regions, depending on appropriated parameters. This work also concludes that just water supply is not enough to assure forage production avoiding reduction in dry production in the winter. KEYWORDS: center pivot, pasture, economic feasibility

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Nutrient intake, digestibility and nitrogen balance of two temperate and two tropical forage legume hays fed to New Zealand white rabbits

Nigerian Journal of Animal Production ◽

10.51791/njap.v46i1.2492 ◽

2019 ◽

Vol 46 (1) ◽

pp. 132-142

Author(s):

T. T. Akpensuen ◽

J. T. Amodu ◽

R. J. Tanko ◽

S. B. Abdu ◽

O. A. T. Namo ◽

...

Keyword(s):

New Zealand ◽

Trifolium Repens ◽

Crude Protein ◽

Dry Matter ◽

The Other ◽

Forage Legume ◽

Forage Legumes ◽

Crude Fibre ◽

Tropical Forage ◽

New Zealand White Rabbits

An experiment was carried out to evaluate two temperate forage legumes (Trifolium pratense and Trifolium repens) and two tropical forage legumes (Stylosanthes guianensis and Centrosema molle) for hay intake and digestibility in the cool tropical climate of Vom, Jos, Plateau State of Nigeria. The legumes were planted in the month of June, 2016 and harvested at early-podding stage for hay. Sixteen (16) growing male New Zealand White rabbits were used for the digestibility study. The rabbits were arranged in a Completely Randomised Design and in individual cages measuring 55 cm x 39 cm x 40 cm. Nutrient contents, intake and digestibility in rabbits were determined. Crude protein content was significantly (P<0.01) higher in T. repens (18.38%) compared to T. pratense (16.50 %), whereas S. guianensis produced the least value of 13.83%. The crude fibre content of the hay was significantly higher (P<0.0I) in S. guianensis (37.29 %) compared to the other forage legumes. Dry matter intake was significantly (P<0.01) higher in rabbits fed T. repens (77.88%) compared to T. pratense (76.57%), and the lowest value of 62.97% was obtained in S. guianensis. Crude protein intake was significantly (P<0.01) higher in rabbits fed T. repens (15.05 g d-1) compared to those fed T. pratense (12.71 g d-1), but S. guianensis had the least value of 8.64 g d-1. On the other hand, rabbits fed S. guianensis hay had a higher (P<0.01) crude fibre intake (23.39%). Trifolium repens was significantly (P<0.01) higher in dry matter and crude protein digestibility (64.79 and 85. 88 %), while S. guianensis had lower values of 56.89 and 71.33%, respectively. Trifolium repens also had a significantly (P<0.01) higher total nitrogen intake and retained compared to the other forage legumes. Nitrogen retained in T. repens was 2.40 g d-1 compared to 1.87 g d-1 in T. pretense, while S. guianensis had the lowest of 1.34 g d-1. The temperate forage legume hays were higher in nutrient content, intake and digestibility compared to the tropical legume hays. Therefore, the forage crops may serve as better supplementary feeds for livestock feeding especially during the dry season.

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