Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile

In Cauquenes (35º58' S lat., 72º17' W long.), VII Region, Chile, in a granitic soil, the productivity and persistence of six mixtures with different percentages of annual legumes were evaluated: M1 Trifolium subterraneum (Ts); M2: Ts and Medicago polymorpha (Mp); M3: Ts, Mp and Trifolium m...

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Autores principales:	Avendaño R.,Julia, Ovalle M.,Carlos, del Pozo L.,Alejandro, Fernández E.,Fernando, Porqueddu,Claudio
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2005
Materias:	annual legumes pastures Trifolium subterraneum Medicago polymorpha Trifolium michelianum Ornithopus compressus Biserrula pelecinus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200006
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spelling	oai:scielo:S0365-280720050002000062005-08-26Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of ChileAvendaño R.,JuliaOvalle M.,Carlosdel Pozo L.,AlejandroFernández E.,FernandoPorqueddu,Claudio annual legumes pastures Trifolium subterraneum Medicago polymorpha Trifolium michelianum Ornithopus compressus Biserrula pelecinus In Cauquenes (35º58' S lat., 72º17' W long.), VII Region, Chile, in a granitic soil, the productivity and persistence of six mixtures with different percentages of annual legumes were evaluated: M1 Trifolium subterraneum (Ts); M2: Ts and Medicago polymorpha (Mp); M3: Ts, Mp and Trifolium michelianum (Tb); M4: Ts, Mp, Tb and Ornithopus compressus (Op); M5: Ts, Mp, Tb, Op and Biserrula pelecinus (Bp) and M6: 20% of each species. The replacement of 50% of the initial seeding rate of Ts by other legumes reduced the population of Ts, particularly in the second and third year. The higher seed production of Mp in mixtures of two or more species in the first two years contributed to the great regeneration of Mp in the third year (1,000-2,000 seedlings m-2 of Mp vs. 100-240 seedlings m-2 of Ts). As a consequence, specific contribution and biomass production of Mp in mixtures (M2-M6) were higher than Ts in the second and third year. The specific contribution of Tb in the mixtures was low (between 4.3 to 17%) in the three years; and that of Op and Bp was almost null in all years. Total aerial biomass fluctuated between 1,673 to 2,020 (P ≥ 0,05) and 3,520 to 4,395 (P ≥ 0,05) kg DM ha-1 in the first and second year, respectively. In the third year, the mixtures with two and five species (M2: 5,838; M5: 5,643 and M6: 5,678 kg DM ha-1) exceeded (P ≤ 0,05) the treatment with Ts only (3,905 kg DM ha-1).info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAAgricultura Técnica v.65 n.2 20052005-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200006en10.4067/S0365-28072005000200006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	annual legumes pastures Trifolium subterraneum Medicago polymorpha Trifolium michelianum Ornithopus compressus Biserrula pelecinus
spellingShingle	annual legumes pastures Trifolium subterraneum Medicago polymorpha Trifolium michelianum Ornithopus compressus Biserrula pelecinus Avendaño R.,Julia Ovalle M.,Carlos del Pozo L.,Alejandro Fernández E.,Fernando Porqueddu,Claudio Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile
description	In Cauquenes (35º58' S lat., 72º17' W long.), VII Region, Chile, in a granitic soil, the productivity and persistence of six mixtures with different percentages of annual legumes were evaluated: M1 Trifolium subterraneum (Ts); M2: Ts and Medicago polymorpha (Mp); M3: Ts, Mp and Trifolium michelianum (Tb); M4: Ts, Mp, Tb and Ornithopus compressus (Op); M5: Ts, Mp, Tb, Op and Biserrula pelecinus (Bp) and M6: 20% of each species. The replacement of 50% of the initial seeding rate of Ts by other legumes reduced the population of Ts, particularly in the second and third year. The higher seed production of Mp in mixtures of two or more species in the first two years contributed to the great regeneration of Mp in the third year (1,000-2,000 seedlings m-2 of Mp vs. 100-240 seedlings m-2 of Ts). As a consequence, specific contribution and biomass production of Mp in mixtures (M2-M6) were higher than Ts in the second and third year. The specific contribution of Tb in the mixtures was low (between 4.3 to 17%) in the three years; and that of Op and Bp was almost null in all years. Total aerial biomass fluctuated between 1,673 to 2,020 (P ≥ 0,05) and 3,520 to 4,395 (P ≥ 0,05) kg DM ha-1 in the first and second year, respectively. In the third year, the mixtures with two and five species (M2: 5,838; M5: 5,643 and M6: 5,678 kg DM ha-1) exceeded (P ≤ 0,05) the treatment with Ts only (3,905 kg DM ha-1).
author	Avendaño R.,Julia Ovalle M.,Carlos del Pozo L.,Alejandro Fernández E.,Fernando Porqueddu,Claudio
author_facet	Avendaño R.,Julia Ovalle M.,Carlos del Pozo L.,Alejandro Fernández E.,Fernando Porqueddu,Claudio
author_sort	Avendaño R.,Julia
title	Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile
title_short	Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile
title_full	Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile
title_fullStr	Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile
title_full_unstemmed	Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile
title_sort	subterranean clover mixtures with other annual legumes for granitic soils of the subhumid mediterranean dryland zone of chile
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200006
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Subterranean Clover Mixtures with other Annual Legumes for Granitic Soils of the Subhumid Mediterranean Dryland Zone of Chile

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