Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil

The effects of P and K on grapevines (Vitis vinifera L.) var. Muscat Rosada were evaluated four years, considering the same levels of N. The experiment was conducted at the Vicuña Experimental Station (30° S; 70°44’ W) of the Instituto de Investigaciones Agropecuarias (INIA). The soil is a...

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Autores principales:	Sierra B,Carlos, Alfaro P,Rubén
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2008
Materias:	grapes fertilization phosphorus potassium
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000300010
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spelling	oai:scielo:S0718-583920080003000102018-10-01Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley SoilSierra B,CarlosAlfaro P,Rubén grapes fertilization phosphorus potassium The effects of P and K on grapevines (Vitis vinifera L.) var. Muscat Rosada were evaluated four years, considering the same levels of N. The experiment was conducted at the Vicuña Experimental Station (30° S; 70°44’ W) of the Instituto de Investigaciones Agropecuarias (INIA). The soil is alluvial antropic miscellaneous (Entisols). Three fertilization treatments were established: 1) N 160 + P2O5 200 + K2O 300; 2) N 160 + P2O5 0 + K2O 300; and 3) N 160 + P2O5 200 + K2O 0. At the beginning of the experiment, grape vines received all the phosphate fertilizers, 200 kg ha-1 of P2O5 as triple superphosphate in Treatments 1 and 3. Nitrogen was applied as urea for four years. The applications were initiated when the vine buds measured 20 cm. The K was applied to the soils of Treatments 1 and 2, at a dosage of 200 kg ha-1 K2O, using potassium sulphate. Between berry set and 30 d before harvest, 100 kg ha-1 K2O were applied as potassium sulphate by fertigation. Significant effects of the P fertilization were observed by the second year, with increased cluster numbers per plant. K also increased grape fruit yield by the third year. This response was obtained with less than 5 mg kg-1 of P available in the soil and less than 145 mg kg-1 of exchangeable K in the soil. The initially low content of available K and P suggests a high probability of response to the application of both elements.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.68 n.3 20082008-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000300010en10.4067/S0718-58392008000300010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	grapes fertilization phosphorus potassium
spellingShingle	grapes fertilization phosphorus potassium Sierra B,Carlos Alfaro P,Rubén Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil
description	The effects of P and K on grapevines (Vitis vinifera L.) var. Muscat Rosada were evaluated four years, considering the same levels of N. The experiment was conducted at the Vicuña Experimental Station (30° S; 70°44’ W) of the Instituto de Investigaciones Agropecuarias (INIA). The soil is alluvial antropic miscellaneous (Entisols). Three fertilization treatments were established: 1) N 160 + P2O5 200 + K2O 300; 2) N 160 + P2O5 0 + K2O 300; and 3) N 160 + P2O5 200 + K2O 0. At the beginning of the experiment, grape vines received all the phosphate fertilizers, 200 kg ha-1 of P2O5 as triple superphosphate in Treatments 1 and 3. Nitrogen was applied as urea for four years. The applications were initiated when the vine buds measured 20 cm. The K was applied to the soils of Treatments 1 and 2, at a dosage of 200 kg ha-1 K2O, using potassium sulphate. Between berry set and 30 d before harvest, 100 kg ha-1 K2O were applied as potassium sulphate by fertigation. Significant effects of the P fertilization were observed by the second year, with increased cluster numbers per plant. K also increased grape fruit yield by the third year. This response was obtained with less than 5 mg kg-1 of P available in the soil and less than 145 mg kg-1 of exchangeable K in the soil. The initially low content of available K and P suggests a high probability of response to the application of both elements.
author	Sierra B,Carlos Alfaro P,Rubén
author_facet	Sierra B,Carlos Alfaro P,Rubén
author_sort	Sierra B,Carlos
title	Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil
title_short	Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil
title_full	Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil
title_fullStr	Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil
title_full_unstemmed	Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil
title_sort	potassium and phosphorus in muscat rosada grape yield in elqui valley soil
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000300010
work_keys_str_mv	AT sierrabcarlos potassiumandphosphorusinmuscatrosadagrapeyieldinelquivalleysoil AT alfaropruben potassiumandphosphorusinmuscatrosadagrapeyieldinelquivalleysoil
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Potassium and Phosphorus in Muscat Rosada Grape Yield in Elqui Valley Soil

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