Sourgrass densities affecting the initial growth and macronutrient content of coffee plants
The objective of this work was to evaluate the coexistence effects of coffee (Coffea arabica) with densities of sourgrass (Digitaria insularis) on crop macronutrient content and plant growth. The experiment was conducted in plots where one coffee plant was maintained in coexistence with 0 (weed-free check), 1, 2, 4, 8, and 16 sourgrass plants, using a completely randomized design with three replicates. Reduction of coffee growth and macronutrient content, except P that increased, started when the coexistence occurred with sourgrass plants in a density of 1 plant per plot. In general, macronutrient content was reduced by 18-50%, while growth characteristics were reduced by 9-41%, when coffee plants coexisted with 16 plants of sourgrass. Thus, sourgrass competition for nutrients was a strong factor limiting coffee plant growth.
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Sociedade Brasileira da Ciência das Plantas Daninhas
2013
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oai:scielo:S0100-835820130001000122012-12-10Sourgrass densities affecting the initial growth and macronutrient content of coffee plantsCarvalho,L.BAlves,P.L.C.ABianco,S Coffea arabica Digitaria insularis competition additive experiment nutrients The objective of this work was to evaluate the coexistence effects of coffee (Coffea arabica) with densities of sourgrass (Digitaria insularis) on crop macronutrient content and plant growth. The experiment was conducted in plots where one coffee plant was maintained in coexistence with 0 (weed-free check), 1, 2, 4, 8, and 16 sourgrass plants, using a completely randomized design with three replicates. Reduction of coffee growth and macronutrient content, except P that increased, started when the coexistence occurred with sourgrass plants in a density of 1 plant per plot. In general, macronutrient content was reduced by 18-50%, while growth characteristics were reduced by 9-41%, when coffee plants coexisted with 16 plants of sourgrass. Thus, sourgrass competition for nutrients was a strong factor limiting coffee plant growth.info:eu-repo/semantics/openAccessSociedade Brasileira da Ciência das Plantas Daninhas Planta Daninha v.31 n.1 20132013-03-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000100012en10.1590/S0100-83582013000100012 |
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Carvalho,L.B Alves,P.L.C.A Bianco,S |
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Carvalho,L.B Alves,P.L.C.A Bianco,S Sourgrass densities affecting the initial growth and macronutrient content of coffee plants |
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Carvalho,L.B Alves,P.L.C.A Bianco,S |
| author_sort |
Carvalho,L.B |
| title |
Sourgrass densities affecting the initial growth and macronutrient content of coffee plants |
| title_short |
Sourgrass densities affecting the initial growth and macronutrient content of coffee plants |
| title_full |
Sourgrass densities affecting the initial growth and macronutrient content of coffee plants |
| title_fullStr |
Sourgrass densities affecting the initial growth and macronutrient content of coffee plants |
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Sourgrass densities affecting the initial growth and macronutrient content of coffee plants |
| title_sort |
sourgrass densities affecting the initial growth and macronutrient content of coffee plants |
| description |
The objective of this work was to evaluate the coexistence effects of coffee (Coffea arabica) with densities of sourgrass (Digitaria insularis) on crop macronutrient content and plant growth. The experiment was conducted in plots where one coffee plant was maintained in coexistence with 0 (weed-free check), 1, 2, 4, 8, and 16 sourgrass plants, using a completely randomized design with three replicates. Reduction of coffee growth and macronutrient content, except P that increased, started when the coexistence occurred with sourgrass plants in a density of 1 plant per plot. In general, macronutrient content was reduced by 18-50%, while growth characteristics were reduced by 9-41%, when coffee plants coexisted with 16 plants of sourgrass. Thus, sourgrass competition for nutrients was a strong factor limiting coffee plant growth. |
| publisher |
Sociedade Brasileira da Ciência das Plantas Daninhas |
| publishDate |
2013 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000100012 |
| work_keys_str_mv |
AT carvalholb sourgrassdensitiesaffectingtheinitialgrowthandmacronutrientcontentofcoffeeplants AT alvesplca sourgrassdensitiesaffectingtheinitialgrowthandmacronutrientcontentofcoffeeplants AT biancos sourgrassdensitiesaffectingtheinitialgrowthandmacronutrientcontentofcoffeeplants |
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