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Horticulturae
Special Issues
Using Residual Materials as Fertilizers
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Using Residual Materials as Fertilizers

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Plant Nutrition".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 5017

Special Issue Editors

Prof. Dr. Wilfried Rozhon

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Guest Editor
Department of Agriculture, Ecotrophology, and Landscape Development, Anhalt University of Applied Sciences, 06406 Bernburg, Saxony-Anhalt, Germany
Interests: plant nutrition; orphan crops; analytical methods, including HPLC, UHPLC, GC, mass spectrometry, optical spectroscopy, electrophoresis and quantitative PCR; separation and analysis of chiral molecules; enzyme assays; inhibitors
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Annette Deubel

E-Mail Website
Guest Editor
Department of Agriculture, Ecotrophology, and Landscape Development, Anhalt University of Applied Sciences, 06406 Bernburg, Saxony-Anhalt, Germany
Interests: effectivity of cash crop production (intensity of fertilization and crop protection); tillage effects on crop yield, quality, and soil properties; plant nutrition, especially long-term effects of P and K fertilization; adaptation of crop production to climate change
Dr. Sabine von Tucher

E-Mail Website
Guest Editor
Professorship of Crop Physiology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Alte Akademie 12, 85354 Freising, Germany
Interests: nutrient (use) efficiency (particularly P, S, N) in the plant–soil system; effectiveness of mineral and organic fertilizers as a source for the plant P, S and N demand; plant nutritional quality as affected by mineral nutrition; nutrient turnover in the environment

Special Issue Information

Dear Colleagues,

To prepare fertilizers, considerable amounts of inorganic compounds are required, many of which are obtained by mining. Economically recoverable reserves of such resources are finite and, particularly for phosphorus, shortages of these resources are expected in the near future. As potassium is a more abundant element, the situation is less concerning; however, its extraction causes environmental problems. In addition, raw materials, obtained by mining, are often contaminated with undesirable elements, such as heavy metals and radioactive elements. For nitrogen, which is the third key component of fertilizers and is required in huge amounts, there is no risk of shortage of raw materials. However, the synthesis of required compounds, mainly ammonia and nitrates, requires a lot of energy.

Due to the increasing world population, even more fertilizers will be required to maintain high horticultural productivity. Thus, research for techniques that enable alternative materials to be employed, particularly residual materials, as fertilizers is of utmost importance.

This Special Issue aims to collect manuscripts that present novel ideas, strategies and techniques for using or applying residual materials (sewage sludge, sewage sludge ash, fermentation residues, biomass ash, etc.) as fertilizers, or using them as a source for the extraction of plant nutrients. In addition, manuscripts that compare the growth and yield of horticultural crops fertilized with such alternative products, and with conventional fertilizers, are suitable for this Special Issue.

Original manuscripts and review articles that address the aforementioned topics, or similar topics, are highly welcome. For reviews, communication of a brief proposal is recommended prior to manuscript preparation, to avoid overlaps with other submissions.

Prof. Dr. Wilfried Rozhon
Prof. Dr. Annette Deubel
Dr. Sabine von Tucher
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fertilizers
  • phosphorus
  • potassium
  • nitrogen
  • sulfur
  • micro nutrients
  • sewage sludge ash
  • fermentation residues
  • biomass ash

Published Papers (3 papers)

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Research

12 pages, 1251 KiB  
Article
Creeping Bentgrass Nutritional, Morphological, and Putting Green Performance Response to Ca/Mg-Silicate Slag Liming Agent
by Derek T. Pruyne and Maxim J. Schlossberg
Horticulturae 2023, 9(9), 958; https://doi.org/10.3390/horticulturae9090958 - 24 Aug 2023
Cited by 1 | Viewed by 1042
Abstract
While not classified as an essential plant nutrient, silicon (Si) assimilation following exogenous Si application has enhanced the wear resistance of cool-season turfgrass. Given this beneficial supplementation of lignin by Si reported in epidermal tissue of monocotyledonous plants, our research objective was to [...] Read more.
While not classified as an essential plant nutrient, silicon (Si) assimilation following exogenous Si application has enhanced the wear resistance of cool-season turfgrass. Given this beneficial supplementation of lignin by Si reported in epidermal tissue of monocotyledonous plants, our research objective was to quantify root morphology, vegetative nutrition and vigor, soil chemistry, and putting green performance in response to split applications of pelletized liming agents rich in Si and/or Ca and Mg. Field evaluation of granular liming agent treatment, 2441 kg (ha year)−1, was conducted on creeping bentgrass (Agrostis stolonifera L. cv. Penn G-2) putting green maintained in the Mid-Atlantic US. Pelletized Ca/Mg-SiO3 slag or dolomitic limestone treatments were conducted in frequent split applications and incorporated into the upper 5 cm of the rootzone. Measurements of canopy color and density, shoot growth as clipping yield, soil pH, Si and nutrient content of clippings, and soil extractable Si were performed each season. Cumulative Ca/Mg-SiO3 application (kg ha−1) increased mean acetic acid (HOAc) extractable Si by 35 to 60 mg kg−1 and leaf Si content by 1.0 to 1.5 mg g−1. However, neither putting green canopy quality, shoot nutrient concentration, 5 to 15 cm depth root length density nor ball roll distance was improved by liming agent treatment. Liming agent-treated or untreated plots showed statistical, yet inconsistent, differences in clipping yield 4, 14, 15, 16, and 17 months from initiation (MFI). This thorough shuffling of treatment rank, resulting in identical experiment-wide means precludes the expectation of dependably superior vigor by any. Full article
(This article belongs to the Special Issue Using Residual Materials as Fertilizers)
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11 pages, 433 KiB  
Article
A Predictive Model of Nutrient Recovery from RAS Drum-Screen Effluent for Reuse in Aquaponics
by Joseph Tetreault, Rachel L. Fogle, Ashly Ramos and Michael B. Timmons
Horticulturae 2023, 9(3), 403; https://doi.org/10.3390/horticulturae9030403 - 21 Mar 2023
Cited by 1 | Viewed by 1739
Abstract
Controlled environment agriculture (CEA) optimizes growth parameters for vegetable and aquaculture production and can be used to address growing global food insecurity. Recirculating aquaculture systems (RAS) generate a nutrient-dense effluent that may result in environmental pollution, but with treatment and integration with hydroponic [...] Read more.
Controlled environment agriculture (CEA) optimizes growth parameters for vegetable and aquaculture production and can be used to address growing global food insecurity. Recirculating aquaculture systems (RAS) generate a nutrient-dense effluent that may result in environmental pollution, but with treatment and integration with hydroponic vegetable production may be repurposed as a naturally derived nutrient solution. This work developed a preliminary model using the system feed rate to calculate a plant-essential nutrient discharge rate in RAS effluent. Loading rate equations were created to calculate the daily mass of nutrients entering the system through fish feed, and discharge rate equations were created to calculate the grams of each nutrient discharged in the effluent per kilogram of feed. Data from previous published work were used for validation. The loading-rate percentage discharged for nutrients present in the effluent was between 2.71% and 64.5%, with several nutrients being prominent pollutants and all being required for vegetable growth. This work provides the preliminary framework for calculating nutrient discharge rates, which can be used to mitigate pollution or develop more precise, naturally derived hydroponic nutrient solutions for a circular bioeconomy in CEA. Full article
(This article belongs to the Special Issue Using Residual Materials as Fertilizers)
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16 pages, 3900 KiB  
Article
Effects of Sewage Treatment Water Supply on Leaf Development and Yield of Tuberous Roots in Multilayered Sweet Potato Cultivation
by Takahiro Suzuki, Masaru Sakamoto, Hiroshi Kubo, Yui Miyabe and Daisuke Hiroshima
Horticulturae 2023, 9(3), 309; https://doi.org/10.3390/horticulturae9030309 - 24 Feb 2023
Viewed by 1769
Abstract
To develop a way to mass-produce sweet potatoes (Ipomoea batatas (L.) Lam.) as an energy crop to replace fossil fuels, the effects of using a sewage supply as a fertilizer and heat source were investigated. When 25 pots planted with sweet potato [...] Read more.
To develop a way to mass-produce sweet potatoes (Ipomoea batatas (L.) Lam.) as an energy crop to replace fossil fuels, the effects of using a sewage supply as a fertilizer and heat source were investigated. When 25 pots planted with sweet potato vine seedlings were arranged in three layers and cultivated for 160 days from June to November by supplying treated sewage to the root zone, the yield of tuberous roots reached 19.5 kg m−2 due to the massive growth of leaves. In addition, when sweet potato seedlings were replanted in December and treated sewage was supplied to maintain the irrigation water temperature above 15 °C even in winter, overwintering cultivation was successful and 8.4 kg m−2 of tuberous roots were harvested in July. As a result, the annual production rate for 12 months increased to 25.3 kg m−2, about 10 times the national average of 2.4 kg m−2 for open-field cultivation. The results far exceed previously reported maximum production of resource crops, such as sugarcane and eucalyptus, suggesting that the mass production of sweet potatoes by supplying treated sewage could provide an alternative to fossil fuels on a large scale. Full article
(This article belongs to the Special Issue Using Residual Materials as Fertilizers)
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