Organic Materials Used in Agriculture, Horticulture, Reconstructed Soils, and Filtering Applications

Caron, Jean; Heinse, Robert; Charpentier, Sylvain

doi:10.2136/vzj2015.04.0057

Cited by 15 publications

(14 citation statements)

References 22 publications

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“…In the last few decades, pine bark has been used successfully in Mexico and U.S.A. Due to its physical properties of high porosity and adequate drainage, it is now considered an important component for the production of containerized seedlings [21,27,28]. Similarly, raw pine sawdust has been used successfully as a component in combination with pine bark and peat moss, to produce Pinus seedlings [22].…”

Section: Introductionmentioning

confidence: 99%

Alternative Substrates and Fertilization Doses in the Production of Pinus cembroides Zucc. in Nursery

Aispuro

Prieto-Ruíz

Aldrete

et al. 2020

Forests

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Rooting substrate and fertilization are key components in the production of containerized seedlings, as they can influence the morphological and physiological characteristics of the plants, which in turn can impact outplanting performance. The objective of the study was to evaluate the effect of four substrates based on mixtures of peat moss (PM), composted bark (CB) and raw pine sawdust (PS), combined with two doses of controlled release fertilizer (CRF) and one non-fertilized control, on the growth of Pinus cembroides Zucc. in the nursery. The treatments were: M1: 50+25+25, M2: 25+25+50, M3: 25+50+25 and M4: 50+50+0 of PM+ CB+ PS (% by volume), respectively. Fertilizer treatments used a controlled release fertilizer (Multicote®): F1: 3 kg m−3 and F2: 6 kg m−3 and a control (WF: with no added fertilizer). The treatments were distributed in a randomized complete block design, with a factorial arrangement of 4 × 3 and six replications. The variables evaluated were: height, seedling diameter, dry biomass, Dickson Quality Index, N, P and K content. Regardless of the substrate, the high fertilizer dose (6 kg m−3) improved most morphological variables. In addition, the high fertilizer dose resulted in foliar N, P and K concentrations within recommended ranges for all substrates. The substrate containing only peat moss and composted bark (M4 + F1 and M4 + F2) had the best growth response. However, the substrate composed of 25% peat moss, 50% composted bark and 25% raw pine sawdust with the high fertilizer dose (M3 + F2) resulted in acceptable seedling growth, and may be preferred if the cost of the substrate is a concern to nursery manager.

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Section: Introductionmentioning

confidence: 99%

Alternative Substrates and Fertilization Doses in the Production of Pinus cembroides Zucc. in Nursery

Aispuro

Prieto-Ruíz

Aldrete

et al. 2020

Forests

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“…The organic component provides high porosity, low bulk density, and nutrient retention (e.g., water, nutrient ions) (Raviv et al, 1986), which makes Sphagnum peat moss a strongly suitable option with widespread use (Carlile et al, 2015;Robinson and Lamb, 1975). However, increasing expense and competing uses for peat (Caron et al, 2015), impacts of its harvest on wetland ecosystems (Barkham, 1993;Robertson, 1993), including loss of peat bogs as a key global C sink (Cleary et al, 2005), and its perception as unsustainable (Caron et al, 2015) have spurred recent investigations of substitutes for peat in soil-free substrates, including biomass waste products such as compost and sawdust (e.g., Ceglie et al, 2015;Maas and Adamson, 1972;Wright et al, 2009;Álvarez et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Substitution of peat moss with softwood biochar for soil-free marigold growth

Margenot

Griffin

Alves

et al. 2018

Industrial Crops and Products

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A B S T R A C TPeat moss has historically been a key component of soil-free substrates in the greenhouse and nursery industries. However, the increasing expense of peat, negative impacts of peat mining on wetland ecosystems, and growing perception of peat as unsustainable have led to investigation for alternatives. Biochar (BC) is a promising substitute for peat, yet the majority of studies examine additions of BC to peat-based substrates rather than replacing the peat component or employ relatively low substitution rates. Furthermore, at high substitution rates the alkalinity common to many BCs may increase substrate pH and adversely impact plant production. We evaluated BC substitution for peat and pH adjustment of resulting substrates on marigold (Tagetes erecta L.) performance under standard greenhouse conditions. A high pH (10.9) softwood BC (800°C) was substituted for peat in a standard 70:30 (v/v) peat:perlite mixture at 10% total volume increments. Substrate pH was either not adjusted or adjusted to pH 5.8 using a BC by-product, pyroligneous acid (PLA). Germination was inhibited in pH adjusted substrates with high BC substitution (50-70% total substrate volume) likely due to higher dosages of PLA needed to neutralize pH. At harvest (flowering stage, 9 weeks) the initial pH gradient (4.4-10.4) in substrates that were not pH adjusted had converged to pH 5.6-7.5, and BC substitution for peat did not negatively impact marigold biomass or flowering. At low substitution rates (10-30% total substrate volume), marigold biomass and leaf SPAD values were greater than the control peat-perlite mixture (0% BC). This study demonstrates that softwood BC can be considered as a full replacement for peat in soil-free substrates, and even at high rates (70% total substrate volume) does not require pH adjustment for marigold production. Crop-and BC-specific considerations and economic potential should be investigated for wider application.

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“…Bark is also becoming scarce due to demand from other uses, reduced timber harvests, and rising prices [40,41]. The demand for sustainable alternatives to peat and bark has prompted research to develop alternative substrates [35,37,42,43,44,45,46,47,48].…”

Section: Ad Fiber As a Component Of Growth Substrates Used In Containmentioning

confidence: 99%

Approaches for adding value to anaerobically digested dairy fiber

Peláez-Samaniego

Hummel

Liao

et al. 2017

Renewable and Sustainable Energy Reviews

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One of the consequences of the increase of large dairy concentrated feeding operations (CAFOs) is the abundance of dairy manure that needs to be disposed of or used in some way. CAFOs can become bio-refineries, harnessing the manure for heat, power, fuel, chemicals, fertilizers, fiber, wood composites, and biochar for production of multiple value-added co-products. The objective of this paper is to review options for using dairy manure fiber and its corresponding anaerobically digested (AD) fiber. Bedding for cows remains a common choice for employing the separated AD fiber. However, research has shown that AD fiber has potential for using it as a component of growth substrates used in container plant production systems, for producing composite materials, or as a feedstock for both chemical and thermochemical operations. Potential uses of AD fiber such as composite materials and liquid fuels are proposed based on experiences employing the manure and its fiber (both without a previous AD step and after AD). Thermochemical processing (e.g., liquefaction and pyrolysis) of AD fiber for fuels and chemicals has been conducted at laboratory level and still needs further study at larger scale. Gasification of AD fiber is a promising option since there is potential for integration of current methane production with methane produced from thermal gasification.

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Organic Materials Used in Agriculture, Horticulture, Reconstructed Soils, and Filtering Applications

Cited by 15 publications

References 22 publications

Alternative Substrates and Fertilization Doses in the Production of Pinus cembroides Zucc. in Nursery

Alternative Substrates and Fertilization Doses in the Production of Pinus cembroides Zucc. in Nursery

Substitution of peat moss with softwood biochar for soil-free marigold growth

Approaches for adding value to anaerobically digested dairy fiber

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