Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield

The negative impact of N over-fertilization has acquired importance in rose (Rosa spp.) growers in Colombia. The nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) has been considered a valuable alternative to diminish the N losses by leaching and to enable more efficient N use efficiency...

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Autores principales:	García-Castro,Alexandra, Restrepo-Díaz,Hermann
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2013
Materias:	Chlorophyll fluorescence leaf nitrogen concentration nitrate leaching nitrogen use efficiency
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200011
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spelling	oai:scielo:S0718-583920130002000112018-10-01Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yieldGarcía-Castro,AlexandraRestrepo-Díaz,Hermann Chlorophyll fluorescence leaf nitrogen concentration nitrate leaching nitrogen use efficiency The negative impact of N over-fertilization has acquired importance in rose (Rosa spp.) growers in Colombia. The nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) has been considered a valuable alternative to diminish the N losses by leaching and to enable more efficient N use efficiency in crops. The objective of the present work was to study the effect of DMPP on the mineral N (NH4+- N and NO3--N) content in soil and water leaching, and physiological characteristics of rose plants. A greenhouse experiment was performed for 10 wk. Four-year-old ’Charlotte’ rose cultivars grafted on ’Natal Briar’ were grown in soil and fertirrigated daily with a complete nutrient solution containing 170 mg N L-1. Two N fertilizers (uncoated urea [UA], and urea + 1% DMPP [UDMPP]) were used. Results showed that UDMPP did not show any advantages on dry mass accumulation, N use efficiency, leaf area, number of marketable stems, SPAD readings, chlorophyll fluorescence, and leaf N concentration. Despite all these results, the addition of the inhibitor reduced mean NO3-N concentrations in the percolated water by 65.81%. These results suggest that UDMPP could be a valuable tool to reduce NO3-- N leaching losses by retaining applied N in the ammoniacal form.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.73 n.2 20132013-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200011en10.4067/S0718-58392013000200011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chlorophyll fluorescence leaf nitrogen concentration nitrate leaching nitrogen use efficiency
spellingShingle	Chlorophyll fluorescence leaf nitrogen concentration nitrate leaching nitrogen use efficiency García-Castro,Alexandra Restrepo-Díaz,Hermann Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield
description	The negative impact of N over-fertilization has acquired importance in rose (Rosa spp.) growers in Colombia. The nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) has been considered a valuable alternative to diminish the N losses by leaching and to enable more efficient N use efficiency in crops. The objective of the present work was to study the effect of DMPP on the mineral N (NH4+- N and NO3--N) content in soil and water leaching, and physiological characteristics of rose plants. A greenhouse experiment was performed for 10 wk. Four-year-old ’Charlotte’ rose cultivars grafted on ’Natal Briar’ were grown in soil and fertirrigated daily with a complete nutrient solution containing 170 mg N L-1. Two N fertilizers (uncoated urea [UA], and urea + 1% DMPP [UDMPP]) were used. Results showed that UDMPP did not show any advantages on dry mass accumulation, N use efficiency, leaf area, number of marketable stems, SPAD readings, chlorophyll fluorescence, and leaf N concentration. Despite all these results, the addition of the inhibitor reduced mean NO3-N concentrations in the percolated water by 65.81%. These results suggest that UDMPP could be a valuable tool to reduce NO3-- N leaching losses by retaining applied N in the ammoniacal form.
author	García-Castro,Alexandra Restrepo-Díaz,Hermann
author_facet	García-Castro,Alexandra Restrepo-Díaz,Hermann
author_sort	García-Castro,Alexandra
title	Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield
title_short	Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield
title_full	Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield
title_fullStr	Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield
title_full_unstemmed	Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield
title_sort	evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (dmpp)-coated urea on nitrogen leaching and rose (rosa spp.) yield
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200011
work_keys_str_mv	AT garciacastroalexandra evaluationoffertilizationwithuncoatedureaand34dimethylpyrazolephosphatedmppcoatedureaonnitrogenleachingandroserosasppyield AT restrepodiazhermann evaluationoffertilizationwithuncoatedureaand34dimethylpyrazolephosphatedmppcoatedureaonnitrogenleachingandroserosasppyield
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Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield

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