Composts as Horticultural Substrates for Vegetable Transplant Production

Sterrett, S. B.

doi:10.1201/9781420026221.ch10

Cited by 30 publications

(40 citation statements)

References 30 publications

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“…Using good crop substrates is therefore critical (Sterrett, 2001;Lazcano et al, 2009). Transplants, compared with direct sowing, are a more reliable method of ensuring the proper establishment of a range of commercial horticultural crops with high economic value.…”

Section: Chlamentioning

confidence: 99%

“…However, peat is mainly imported from northern Europe and has recently become more expensive and its properties more variable. The extensive use of peat as a substrate has led growers to consider replacing it in the medium-to long-term (Sterrett, 2001) with alternatives, including organic residues following the composting process (Siminis and Manios, 1990;Castillo et al, 2000). The need to recycle wastes and the increasing environmental pressure against peat extraction leads to increasing interest in the feasibility of substituting peat with organic waste and by-products.…”

Section: Introductionmentioning

confidence: 99%

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

Papamichalaki

Papadaki

Tzortzakis

2014

Chilean J. Agric. Res.

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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.

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Section: Chlamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Papamichalaki

Papadaki

Tzortzakis

2014

Chilean J. Agric. Res.

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“…The production of vegetable seedlings, especial in Mediterranean countries with great field and greenhouse crops expansion, is a highlycompetitive business; uniform and rapid seed emergence is essential prerequisites to increase yield, quality, and profits in crops. Use of good crop substrates with appropriate physicochemical properties, is therefore critical [1].…”

Section: Introductionmentioning

confidence: 99%

Untitled

2014

J Plant Biol Soil Health

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The impacts of municipal solid waste compost (MSWC) in different contents were evaluated in melon (Citrulus melo L.) seed germination and seedling production in nurseries study. up to 10 -6 dilutions) of MSWC evaluated for seed priming/germination in Petri dishes. The MSWC extracts at 10 -1 -10 -6 enhanced (up to 20%) seedling germination as well as shoot and root radicle length. However, pure extracts (at 10 -0 ) delayed the seed germination for 3 days which was less than 25%. Under nursery conditions, six media [(% v/v): peat: MSWC (100:0) as control; peat:MSWC (85:15); peat: MSWC (70:30); peat:MSWC (55:45); peat:MSWC (40:60) and peat:MSWC (0:100)] were prepared from commercial peat and MSWC. Seedling growth/development parameters were assessed. Seed emergence enhanced when low MSWC content (< 30%) used while increased MSWC content (>60%) reduced (up to 80%) emergence and delayed up to 6 days the emergence time. Under nursery conditions, addition of MSWC (especially in content greater than 30%) reduced leaf numbers produced, seedling fresh weight (and dry matter content), chlorophyll a and total carotenoids content. Increased MSWC content into the substrate affected negatively the seedling height and leaf internal CO 2 concentration. Stem diameter, leaf fluorescence and chlorophyll b content accelerated when 15-45% MSWC content used into the substrate. No significant differences observed in leaf stomatal conductance in plants grown in different MSWC contents. No visual phytotoxicity obtained macroscopically. Thus, low content (up to 30%) of MSWC may act as an alternative substitute of peat in melon seedling production.

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“…Numerous studies have addressed the use of compost in nursery plant production, and have analyzed its chemical, physical, and biological properties [5, 6]. It has been found that mixtures of compost with perlite (20–50% MSWC) in nurseries may be used as substrates without the need for additional mineral fertilizer [7].…”

Section: Introductionmentioning

confidence: 99%

Use of Fertigation and Municipal Solid Waste Compost for Greenhouse Pepper Cultivation

Tzortzakis

Gouma

Dagianta

et al. 2012

The Scientific World Journal

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Municipal solid waste compost (MSWC) and/or fertigation used in greenhouse pepper (Capsicum annuum L.) cultivation with five different substrates with soil (S) and/or MSWC mixtures (0–5–10–20–40%) used with or without fertigation. Plants growth increased in 10–20% MSWC and fertigation enhanced mainly the plant height. Fruit number increased in S : MSWC 80 : 20 without fertilizer. Plant biomass increased as MSWC content increased. There were no differences regarding leaf fluoresces and plant yield. The addition of MSWC increased nutritive value (N, K, P, organic matter) of the substrate resulting in increased EC. Fruit fresh weight decreased (up to 31%) as plants grown in higher MSWC content. Fruit size fluctuated when different MSWC content used into the soil and the effects were mainly in fruit diameter rather than in fruit length. Interestingly, the scale of marketable fruits reduced as MSWC content increased into the substrate but addition of fertilizer reversed this trend and maintained the fruit marketability. MSWC affected quality parameters and reduced fruit acidity, total phenols but increased fruit lightness. No differences observed in fruit dry matter content, fruit firmness, green colour, total soluble sugars and EC of peppers and bacteria (total coliform and E. coli) units. Low content of MSWC improved plant growth and maintained fruit fresh weight for greenhouse pepper without affecting plant yield, while fertigation acted beneficially.

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Composts as Horticultural Substrates for Vegetable Transplant Production

Cited by 30 publications

References 30 publications

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

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

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Use of Fertigation and Municipal Solid Waste Compost for Greenhouse Pepper Cultivation

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