Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation

Interest in reusing organic residues as substrate medium in nurseries has increased worldwide as peat availability has been reduced over time. In this study, the effect of fertigation and/or a partial substitution of peat with municipal solid waste compost (MSWC) on the emergence, growth, and nutrit...

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Autores principales:	Papamichalaki,Maria, Papadaki,Anastasia, Tzortzakis,Nikos
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Citrullus lanatus compost growth municipal solid waste peat seed emergence watermelon
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400012
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spelling	oai:scielo:S0718-583920140004000122018-10-01Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigationPapamichalaki,MariaPapadaki,AnastasiaTzortzakis,Nikos Citrullus lanatus compost growth municipal solid waste peat seed emergence watermelon Interest in reusing organic residues as substrate medium in nurseries has increased worldwide as peat availability has been reduced over time. In this study, the effect of fertigation and/or a partial substitution of peat with municipal solid waste compost (MSWC) on the emergence, growth, and nutrition of watermelon (Citrullus lanatus L.) seedlings were tested. The MSWC extracts (MSWC:water at 10-1 and 10-2 dilutions) maintained seedling germination. Under nursery conditions, six media prepared from commercial peat and MSWC were further assessed in conjunction with nutrient application as basic fertilizer (BF) or hydro fertilizer (HF). Adding MSWC to the substrate inhibited seed emergence and mean germination time, whereas fertigation maintained seed emergence in 15% MSWC but decreased in 45% MSWC. Adding 45% MSWC reduced seedling height, leaf number, and fresh weight. The HF increased fresh weight (up to 44%) and growth in seedlings cultivated in 15% MSWC. Leaf photosynthetic rate and stomatal conductance increased (up to 2.6-fold) in MSWC-based (< 45% MSWC) substrates, but no differences were observed in chlorophyll a, chlorophyll b, total carotenoid content, and leaf fluorescence. The HF reduced chlorophyll a and total carotenoids, but increased chlorophyll b content. The K, N, and Na content increased (ranging from 2- to 5-fold) when adding MSWC, whereas P content did not differ. Fertigation benefits seedling nutritive status. Low content (15% to 30%) of MSWC may act as an alternative substitute for peat with more positive effects if minerals are provided through HF.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.4 20142014-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400012en10.4067/S0718-58392014000400012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Citrullus lanatus compost growth municipal solid waste peat seed emergence watermelon
spellingShingle	Citrullus lanatus compost growth municipal solid waste peat seed emergence watermelon Papamichalaki,Maria Papadaki,Anastasia Tzortzakis,Nikos Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation
description	Interest in reusing organic residues as substrate medium in nurseries has increased worldwide as peat availability has been reduced over time. In this study, the effect of fertigation and/or a partial substitution of peat with municipal solid waste compost (MSWC) on the emergence, growth, and nutrition of watermelon (Citrullus lanatus L.) seedlings were tested. The MSWC extracts (MSWC:water at 10-1 and 10-2 dilutions) maintained seedling germination. Under nursery conditions, six media prepared from commercial peat and MSWC were further assessed in conjunction with nutrient application as basic fertilizer (BF) or hydro fertilizer (HF). Adding MSWC to the substrate inhibited seed emergence and mean germination time, whereas fertigation maintained seed emergence in 15% MSWC but decreased in 45% MSWC. Adding 45% MSWC reduced seedling height, leaf number, and fresh weight. The HF increased fresh weight (up to 44%) and growth in seedlings cultivated in 15% MSWC. Leaf photosynthetic rate and stomatal conductance increased (up to 2.6-fold) in MSWC-based (< 45% MSWC) substrates, but no differences were observed in chlorophyll a, chlorophyll b, total carotenoid content, and leaf fluorescence. The HF reduced chlorophyll a and total carotenoids, but increased chlorophyll b content. The K, N, and Na content increased (ranging from 2- to 5-fold) when adding MSWC, whereas P content did not differ. Fertigation benefits seedling nutritive status. Low content (15% to 30%) of MSWC may act as an alternative substitute for peat with more positive effects if minerals are provided through HF.
author	Papamichalaki,Maria Papadaki,Anastasia Tzortzakis,Nikos
author_facet	Papamichalaki,Maria Papadaki,Anastasia Tzortzakis,Nikos
author_sort	Papamichalaki,Maria
title	Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation
title_short	Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation
title_full	Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation
title_fullStr	Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation
title_full_unstemmed	Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation
title_sort	substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400012
work_keys_str_mv	AT papamichalakimaria substitutionofpeatwithmunicipalsolidwastecompostinwatermelonseedlingproductioncombinedwithfertigation AT papadakianastasia substitutionofpeatwithmunicipalsolidwastecompostinwatermelonseedlingproductioncombinedwithfertigation AT tzortzakisnikos substitutionofpeatwithmunicipalsolidwastecompostinwatermelonseedlingproductioncombinedwithfertigation
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Substitution of peat with municipal solid waste compost in watermelon seedling production combined with fertigation

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