Next Article in Journal
Biological Control of the Raspberry Eriophyoid Mite Phyllocoptes gracilis Using Entomopathogenic Fungi
Next Article in Special Issue
Nitrogen Effect on Growth-Related Parameters and Evaluation of Portulaca oleracea as a Phytoremediation Species in a Cr(VI)-Spiked Soil
Previous Article in Journal
Astilbe and Coneflower Growth as Affected by Fertilizer Rate and Substrate Volumetric Water Content
Previous Article in Special Issue
Valorization of Spent Coffee Grounds, Biochar and other residues to Produce Lightweight Clay Ceramic Aggregates Suitable for Nursery Grapevine Production
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Horticulturae
Volume 7
Issue 3
10.3390/horticulturae7030053
horticulturae-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Effects of Municipal Solid Waste Compost Supplemented with Inorganic Nitrogen on Physicochemical Soil Characteristics, Plant Growth, Nitrate Content, and Antioxidant Activity in Spinach

by
Rui M. A. Machado
1,*,
Isabel Alves-Pereira
2,*,
Miguel Robalo
1 and
Rui Ferreira
2
1
MED—Mediterranean Institute for Agriculture, Environment and Development & Departamento de Fitotecnia, Escola de Ciências e Tecnologia, Universidade de Évora, 7002-554 Évora, Portugal
2
MED—Mediterranean Institute for Agriculture, Environment and Development & Departamento de Química, Escola de Ciências e Tecnologia, Universidade de Évora, 7002-554 Évora, Portugal
*
Authors to whom correspondence should be addressed.
Horticulturae 2021, 7(3), 53; https://doi.org/10.3390/horticulturae7030053
Submission received: 24 February 2021 / Revised: 14 March 2021 / Accepted: 15 March 2021 / Published: 17 March 2021
(This article belongs to the Special Issue Soil, Water and Nitrates Management in Horticultural Production)
Browse Figures
Versions Notes

Abstract

In this study, we evaluated the effects of municipal solid waste compost supplemented with inorganic N on the physicochemical properties of soil, plant growth, nitrate concentration, and antioxidant activity in spinach. Experiments were carried out in neutral and acidic soils that were low in organic matter. A fertilized soil was used as a control, while four compost treatments—two compost rates of 35 and 70 t ha−1, supplemented or not with inorganic N (92 kg N ha−1 as Ca (NO3)2)—were applied by fertigation. The addition of compost increased the soil organic matter content and pH in both soils. The compost supplementation with N greatly increased the shoot dry weight and spinach fresh yield by nearly 109%. With the highest compost rate and 43% N applied, the yield increased in both soils, similar to results obtained in fertilized soil (3.8 kg m−2). The combined application of compost and N could replace inorganic P and K fertilization to a significant extent. The compost application at both rates and in both soils considerably decreased shoot Mn concentrations.
Keywords: soil organic matter; acidic soil; pH; nitrogen; nutrient uptake; photosynthetic pigments; antioxidant activity; Spinacia oleracea soil organic matter; acidic soil; pH; nitrogen; nutrient uptake; photosynthetic pigments; antioxidant activity; Spinacia oleracea

Share and Cite

MDPI and ACS Style

Machado, R.M.A.; Alves-Pereira, I.; Robalo, M.; Ferreira, R. Effects of Municipal Solid Waste Compost Supplemented with Inorganic Nitrogen on Physicochemical Soil Characteristics, Plant Growth, Nitrate Content, and Antioxidant Activity in Spinach. Horticulturae 2021, 7, 53. https://doi.org/10.3390/horticulturae7030053

AMA Style

Machado RMA, Alves-Pereira I, Robalo M, Ferreira R. Effects of Municipal Solid Waste Compost Supplemented with Inorganic Nitrogen on Physicochemical Soil Characteristics, Plant Growth, Nitrate Content, and Antioxidant Activity in Spinach. Horticulturae. 2021; 7(3):53. https://doi.org/10.3390/horticulturae7030053

Chicago/Turabian Style

Machado, Rui M. A., Isabel Alves-Pereira, Miguel Robalo, and Rui Ferreira. 2021. "Effects of Municipal Solid Waste Compost Supplemented with Inorganic Nitrogen on Physicochemical Soil Characteristics, Plant Growth, Nitrate Content, and Antioxidant Activity in Spinach" Horticulturae 7, no. 3: 53. https://doi.org/10.3390/horticulturae7030053

APA Style

Machado, R. M. A., Alves-Pereira, I., Robalo, M., & Ferreira, R. (2021). Effects of Municipal Solid Waste Compost Supplemented with Inorganic Nitrogen on Physicochemical Soil Characteristics, Plant Growth, Nitrate Content, and Antioxidant Activity in Spinach. Horticulturae, 7(3), 53. https://doi.org/10.3390/horticulturae7030053

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop