Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands
In response to the extensive development of upland rice on the hillsides of the Malagasy highlands, alter-native cropping systems based on conservation agriculture have been recommended to halt loss of soil fertility. To assess the yield performances of these cropping systems, an experiment was set up in 2003 at Andranomanelatra (1640 m asl) in the Malagasy highlands. Grain yield, yield components, biomass accumulation and nitrogen uptake of upland rice were analyzed in the 2004-2005, 2006-2006, and 2006-2007 seasons, and root length density was measured in the 2007-2008 season. The rice crop was planted every second year following two different crops: maize intercropped with soybean (M + S, with both conventional tillage and no tillage) and maize intercropped with Brachiaria ruziziensis (M + B only with no tillage). For each cropping system, two levels of fertilization were used: no fertilizer or applica-tion of organic inputs and mineral fertilizer. The season, cropping system, and fertilization treatment had significant effects on rice grain yields. Higher yields were associated with a greater number of plants per m2, which decreased significantly over the three seasons, probably due to the highly variable beginning of the rains, and in the final season, with attacks by soil insects. The rice yield with conventional tillage was the highest and differed significantly from rice yield when maize was intercropped with Brachiaria under the no-till system, but not when the maize was intercropped with soybean with no tillage. In all three seasons, grain yields were closely linked to crop N at harvest. Differences in N uptake between treatments appeared very early in the crop cycle. Under conventional tillage, root length density at 68 days after sow-ing was higher between 0 and 30 cm depth than with no tillage. In these cold highlands conditions, plant establishment appeared to be more difficult with no tillage and resulted in reduced plant development and plant N uptake, particularly when rice was planted after maize intercropped with Brachiaria.
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dig-cirad-fr-566083 |
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Francia |
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Europa del Oeste |
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Biblioteca del CIRAD Francia |
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eng |
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F08 - Systèmes et modes de culture F04 - Fertilisation F07 - Façons culturales F50 - Anatomie et morphologie des plantes riz pluvial Oryza système de culture rendement des cultures non-travail du sol rotation culturale fertilisation engrais azoté densité système racinaire Zea mays Glycine max Brachiaria ruziziensis http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5435 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_8511 http://aims.fao.org/aos/agrovoc/c_6662 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_3301 http://aims.fao.org/aos/agrovoc/c_26419 http://aims.fao.org/aos/agrovoc/c_4510 F08 - Systèmes et modes de culture F04 - Fertilisation F07 - Façons culturales F50 - Anatomie et morphologie des plantes riz pluvial Oryza système de culture rendement des cultures non-travail du sol rotation culturale fertilisation engrais azoté densité système racinaire Zea mays Glycine max Brachiaria ruziziensis http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5435 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_8511 http://aims.fao.org/aos/agrovoc/c_6662 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_3301 http://aims.fao.org/aos/agrovoc/c_26419 http://aims.fao.org/aos/agrovoc/c_4510 |
spellingShingle |
F08 - Systèmes et modes de culture F04 - Fertilisation F07 - Façons culturales F50 - Anatomie et morphologie des plantes riz pluvial Oryza système de culture rendement des cultures non-travail du sol rotation culturale fertilisation engrais azoté densité système racinaire Zea mays Glycine max Brachiaria ruziziensis http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5435 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_8511 http://aims.fao.org/aos/agrovoc/c_6662 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_3301 http://aims.fao.org/aos/agrovoc/c_26419 http://aims.fao.org/aos/agrovoc/c_4510 F08 - Systèmes et modes de culture F04 - Fertilisation F07 - Façons culturales F50 - Anatomie et morphologie des plantes riz pluvial Oryza système de culture rendement des cultures non-travail du sol rotation culturale fertilisation engrais azoté densité système racinaire Zea mays Glycine max Brachiaria ruziziensis http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5435 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_8511 http://aims.fao.org/aos/agrovoc/c_6662 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_3301 http://aims.fao.org/aos/agrovoc/c_26419 http://aims.fao.org/aos/agrovoc/c_4510 Dusserre, Julie Chopart, Jean-Louis Douzet, Jean-Marie Rakotoarisoa, Jacqueline Scopel, Eric Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands |
description |
In response to the extensive development of upland rice on the hillsides of the Malagasy highlands, alter-native cropping systems based on conservation agriculture have been recommended to halt loss of soil fertility. To assess the yield performances of these cropping systems, an experiment was set up in 2003 at Andranomanelatra (1640 m asl) in the Malagasy highlands. Grain yield, yield components, biomass accumulation and nitrogen uptake of upland rice were analyzed in the 2004-2005, 2006-2006, and 2006-2007 seasons, and root length density was measured in the 2007-2008 season. The rice crop was planted every second year following two different crops: maize intercropped with soybean (M + S, with both conventional tillage and no tillage) and maize intercropped with Brachiaria ruziziensis (M + B only with no tillage). For each cropping system, two levels of fertilization were used: no fertilizer or applica-tion of organic inputs and mineral fertilizer. The season, cropping system, and fertilization treatment had significant effects on rice grain yields. Higher yields were associated with a greater number of plants per m2, which decreased significantly over the three seasons, probably due to the highly variable beginning of the rains, and in the final season, with attacks by soil insects. The rice yield with conventional tillage was the highest and differed significantly from rice yield when maize was intercropped with Brachiaria under the no-till system, but not when the maize was intercropped with soybean with no tillage. In all three seasons, grain yields were closely linked to crop N at harvest. Differences in N uptake between treatments appeared very early in the crop cycle. Under conventional tillage, root length density at 68 days after sow-ing was higher between 0 and 30 cm depth than with no tillage. In these cold highlands conditions, plant establishment appeared to be more difficult with no tillage and resulted in reduced plant development and plant N uptake, particularly when rice was planted after maize intercropped with Brachiaria. |
format |
article |
topic_facet |
F08 - Systèmes et modes de culture F04 - Fertilisation F07 - Façons culturales F50 - Anatomie et morphologie des plantes riz pluvial Oryza système de culture rendement des cultures non-travail du sol rotation culturale fertilisation engrais azoté densité système racinaire Zea mays Glycine max Brachiaria ruziziensis http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5435 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_8511 http://aims.fao.org/aos/agrovoc/c_6662 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_3301 http://aims.fao.org/aos/agrovoc/c_26419 http://aims.fao.org/aos/agrovoc/c_4510 |
author |
Dusserre, Julie Chopart, Jean-Louis Douzet, Jean-Marie Rakotoarisoa, Jacqueline Scopel, Eric |
author_facet |
Dusserre, Julie Chopart, Jean-Louis Douzet, Jean-Marie Rakotoarisoa, Jacqueline Scopel, Eric |
author_sort |
Dusserre, Julie |
title |
Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands |
title_short |
Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands |
title_full |
Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands |
title_fullStr |
Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands |
title_full_unstemmed |
Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands |
title_sort |
upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands |
url |
http://agritrop.cirad.fr/566083/ http://agritrop.cirad.fr/566083/1/document_566083.pdf |
work_keys_str_mv |
AT dusserrejulie uplandriceproductionunderconservationagriculturecroppingsystemsincoldconditionsoftropicalhighlands AT chopartjeanlouis uplandriceproductionunderconservationagriculturecroppingsystemsincoldconditionsoftropicalhighlands AT douzetjeanmarie uplandriceproductionunderconservationagriculturecroppingsystemsincoldconditionsoftropicalhighlands AT rakotoarisoajacqueline uplandriceproductionunderconservationagriculturecroppingsystemsincoldconditionsoftropicalhighlands AT scopeleric uplandriceproductionunderconservationagriculturecroppingsystemsincoldconditionsoftropicalhighlands |
_version_ |
1792498311589003264 |
spelling |
dig-cirad-fr-5660832024-01-28T20:52:02Z http://agritrop.cirad.fr/566083/ http://agritrop.cirad.fr/566083/ Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands. Dusserre Julie, Chopart Jean-Louis, Douzet Jean-Marie, Rakotoarisoa Jacqueline, Scopel Eric. 2012. Field Crops Research, 138 : 33-41.https://doi.org/10.1016/j.fcr.2012.09.011 <https://doi.org/10.1016/j.fcr.2012.09.011> Upland rice production under conservation agriculture cropping systems in cold conditions of tropical highlands Dusserre, Julie Chopart, Jean-Louis Douzet, Jean-Marie Rakotoarisoa, Jacqueline Scopel, Eric eng 2012 Field Crops Research F08 - Systèmes et modes de culture F04 - Fertilisation F07 - Façons culturales F50 - Anatomie et morphologie des plantes riz pluvial Oryza système de culture rendement des cultures non-travail du sol rotation culturale fertilisation engrais azoté densité système racinaire Zea mays Glycine max Brachiaria ruziziensis http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5435 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_8511 http://aims.fao.org/aos/agrovoc/c_6662 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_3301 http://aims.fao.org/aos/agrovoc/c_26419 Madagascar http://aims.fao.org/aos/agrovoc/c_4510 In response to the extensive development of upland rice on the hillsides of the Malagasy highlands, alter-native cropping systems based on conservation agriculture have been recommended to halt loss of soil fertility. To assess the yield performances of these cropping systems, an experiment was set up in 2003 at Andranomanelatra (1640 m asl) in the Malagasy highlands. Grain yield, yield components, biomass accumulation and nitrogen uptake of upland rice were analyzed in the 2004-2005, 2006-2006, and 2006-2007 seasons, and root length density was measured in the 2007-2008 season. The rice crop was planted every second year following two different crops: maize intercropped with soybean (M + S, with both conventional tillage and no tillage) and maize intercropped with Brachiaria ruziziensis (M + B only with no tillage). For each cropping system, two levels of fertilization were used: no fertilizer or applica-tion of organic inputs and mineral fertilizer. The season, cropping system, and fertilization treatment had significant effects on rice grain yields. Higher yields were associated with a greater number of plants per m2, which decreased significantly over the three seasons, probably due to the highly variable beginning of the rains, and in the final season, with attacks by soil insects. The rice yield with conventional tillage was the highest and differed significantly from rice yield when maize was intercropped with Brachiaria under the no-till system, but not when the maize was intercropped with soybean with no tillage. In all three seasons, grain yields were closely linked to crop N at harvest. Differences in N uptake between treatments appeared very early in the crop cycle. Under conventional tillage, root length density at 68 days after sow-ing was higher between 0 and 30 cm depth than with no tillage. In these cold highlands conditions, plant establishment appeared to be more difficult with no tillage and resulted in reduced plant development and plant N uptake, particularly when rice was planted after maize intercropped with Brachiaria. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/566083/1/document_566083.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.fcr.2012.09.011 10.1016/j.fcr.2012.09.011 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2012.09.011 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.fcr.2012.09.011 |