Soil productivity from the sandy pampas region under the present agricultural conditions

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Fil: Díaz Zorita, Martín. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.

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Autor principal: Díaz Zorita, Martín
Formato: article Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2012
Materias:
DRYLAND SUSTAINABLE AGRICULTURE
ZERO TILLAGE
FERTILIZATION
SOYBEAN
CORN
Acceso en línea:http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2012diazzorita
Aporte de:
FAUBA Digital - Facultad de Agronomía (UBA) de Universidad de Buenos Aires
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spelling snrd:2012diazzorita2021-10-15T16:56:07Z Díaz Zorita, Martín 2012 Fil: Díaz Zorita, Martín. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. Fil: Díaz Zorita, Martín. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. During the last decade, major changes in the organization, extension and intensifi cation of the agricultural systems from the sandy pampas region are observed. Crop production is mostly performed under continuous zero tillage and with the application of fertilizers. In this region, strong relationships between crop yields and soil properties, mostly related to water and nutrient storage, have been described. The purpose of this presentation is to discuss, supported by specifi c local long-term fi eld trials, about several of the changes in the productivity of the soils of the region under the present management practices. Soil organic matter levels decrease under continuous tillage practices after systems with pastures. But, the application of zero tillage practices contributed to maintain the original soil productivity properties. Production systems established on degraded soils frequently show less water use effi ciency, mainly when are cropped with maize (Zea mays L.). The establishment of continuous fertilization programs based on the suffi ciency for low mobility nutrients (e.g. Phosphorus) shows reduction in the soil extractable levels of the nutrient and lower mean crop production compared with maintenance fertilization programs. The use of winter cover crops in soybean (Glycine max (L.) Merrill) monoculture enhances physical soil properties without benefits on crop yields. The crop and soil management practices widely performed during this period have contributed to the soil conservation and to the water use efficiency. However, the application of sufficiency fertilization programs could conduct to the reduction in the levels of soil extractable nutrients and in crop productivity. The present agricultural land use in the region requires to intensify in the use of indexes for the diagnosis of soils productivity independently of the actual relationships with today`s yields. The delimitation of homogeneous areas for the application of efficient soil management practices is needed for the conservation and enhancement of soils productivity capability. application/pdf http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2012diazzorita eng info:eu-repo/semantics/openAccess openAccess http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4 Agrociencia Uruguay Vol.16, no.3, special issue 84-88 http://www.fagro.edu.uy DRYLAND SUSTAINABLE AGRICULTURE ZERO TILLAGE FERTILIZATION SOYBEAN CORN Soil productivity from the sandy pampas region under the present agricultural conditions article info:eu-repo/semantics/article info:ar-repo/semantics/artículo publishedVersion info:eu-repo/semantics/publishedVersion
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-140
collection FAUBA Digital - Facultad de Agronomía (UBA)
language Inglés
orig_language_str_mv eng
topic DRYLAND SUSTAINABLE AGRICULTURE
ZERO TILLAGE
FERTILIZATION
SOYBEAN
CORN
spellingShingle DRYLAND SUSTAINABLE AGRICULTURE
ZERO TILLAGE
FERTILIZATION
SOYBEAN
CORN
Díaz Zorita, Martín
Soil productivity from the sandy pampas region under the present agricultural conditions
topic_facet DRYLAND SUSTAINABLE AGRICULTURE
ZERO TILLAGE
FERTILIZATION
SOYBEAN
CORN
description Fil: Díaz Zorita, Martín. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.
format article
Artículo
Artículo
publishedVersion
publishedVersion
author Díaz Zorita, Martín
author_facet Díaz Zorita, Martín
author_sort Díaz Zorita, Martín
title Soil productivity from the sandy pampas region under the present agricultural conditions
title_short Soil productivity from the sandy pampas region under the present agricultural conditions
title_full Soil productivity from the sandy pampas region under the present agricultural conditions
title_fullStr Soil productivity from the sandy pampas region under the present agricultural conditions
title_full_unstemmed Soil productivity from the sandy pampas region under the present agricultural conditions
title_sort soil productivity from the sandy pampas region under the present agricultural conditions
publishDate 2012
url http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2012diazzorita
work_keys_str_mv AT diazzoritamartin soilproductivityfromthesandypampasregionunderthepresentagriculturalconditions
_version_ 1790354994658017280

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