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Soil Fertility Maintenance and Restoration in Sustainable Agriculture

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Agriculture".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 1992

Special Issue Editors


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Guest Editor
CERNAS - Research Centre and Department of Food Industry, Polytechnic Institute of Viseu, 3504-510 Viseu, Portugal
Interests: sustainability in agri-food ecosystems; nitrogen mineralization; cover crops; organic farming; plant nutrition; nutrient cycling

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Guest Editor
LEAF, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal
Interests: nutrients (nitrogen and phosphorous) and carbon cycling in soils amended with organic residues; management, treatment and valorization of organic wastes from agricultural activities; management of nutrients (nitrogen, phosphorous and potassium) at farm and field scale; soil and water contamination by nitrates and phosphates; emissions of greenhouse gases (CO2, CH4, N2O) and ammonia from agricultural activities
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Special Issue Information

Dear Colleagues,

The demand to feed the growing world population presents many challenges, most notably the requirement to respond to the growing pressure for food by ensuring sustainable food systems. The need to keep environmental impact to a minimum and promote ecosystem health is fundamental to guaranteeing a promising future for the coming generations. The demand for sustainable agriculture is thus becoming more significant.

The sustainability of an agroecosystem depends significantly on the proper management of soil fertility. Soil fertility management is the foundation of agriculture and is essential for sustainable agricultural production. Soil fertility and plant nutrition are important components of plant production. The productive capacity of soils requires the provision of adequate and balanced amounts of nutrients to ensure adequate plant growth.

Soil fertility management among the most important processes affecting crop productivity and sustainability. Improper agricultural management can lead to soil depletion and have negative impacts on the environment.

Some of the goals of this new decade are to improve sustainable production methodologies and reduce negative environmental impacts. Therefore, it is of special importance to investigate practices that allow the restoration and promotion of soil fertility to maximize agricultural production. However, we must also look to preserve and protect the quality of soil, water and natural resources.

This Special Issue will focus on current research and the most recent advances in sustainable soil fertilization strategies.

Topics of interest include (but are not limited to) the use of organic materials (cover crops, composts, biochar, etc.) or minerals (natural zeolites, etc.) to restore degraded soils, covering biogeochemical and environmental aspects. Contributions may focus on:

  • Valorization and recycling of agricultural wastes.
  • Examples of field and laboratory experiments.
  • Effects of soil amendments on the nitrogen and phosphorous cycle.

Dr. Adelaide Perdigão
Dr. David Fangueiro
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. Sustainability is an international peer-reviewed open access semimonthly 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 2400 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

  • soil amendments
  • sustainable agriculture
  • cover crops
  • compost
  • slurries
  • natural zeolites
  • biochar
  • nitrogen cycle
  • phosphorous cycle
  • organic farming

Published Papers (2 papers)

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Research

16 pages, 1670 KiB  
Article
Intercropped Maize and Cowpea Increased the Land Equivalent Ratio and Enhanced Crop Access to More Nitrogen and Phosphorus Compared to Cultivation as Sole Crops
by Paulo Dimande, Margarida Arrobas and Manuel Ângelo Rodrigues
Sustainability 2024, 16(4), 1440; https://doi.org/10.3390/su16041440 - 08 Feb 2024
Cited by 1 | Viewed by 647
Abstract
Sub-Saharan African smallholder farmers face challenges due to limited access to commercial fertilizers, affecting food security. Exploring the benefits of intercropping is promising, but evaluating crop performance in specific agroecological contexts is crucial. This study in Vilankulo, Mozambique, conducted over two growth seasons [...] Read more.
Sub-Saharan African smallholder farmers face challenges due to limited access to commercial fertilizers, affecting food security. Exploring the benefits of intercropping is promising, but evaluating crop performance in specific agroecological contexts is crucial. This study in Vilankulo, Mozambique, conducted over two growth seasons (2018 and 2019), aimed to assess the benefits of intercropping maize (Zea mays L.) and cowpea (Vigna unguiculata L., Walp) (M+C) compared to maize (M) and cowpea (C) as sole crops. Key variables for comparison included dry matter yield (DMY), land equivalent ratio (LER), competitive ratio (CR), tissue nutrient concentration, nutrient recovery, and apparent N fixation (ANF). This study also examined the effects on cabbage (Brassica oleracea L.), cultivated as a succeeding crop, and soil properties. In 2018, maize plants were severely affected by drought and did not produce grain. This year, cowpea grain yields were 2.26 and 1.35 t ha−1 when grown as sole crop or intercropped. In 2019, maize grain yield was 6.75 t ha−1 when intercropped, compared to 5.52 t ha−1 as a sole crop. Cowpea grain yield was lower when intercropped (1.51 vs. 2.25 t ha−1). LER values exceeded 1 (1.91 and 1.53 for grain and straw in 2019), indicating improved performance in intercropping compared to sole crops. In 2019, CR was 1.96 for maize grain and 0.58 for cowpea grain, highlighting the higher competitiveness of maize over cowpea. Cowpea exhibited higher average leaf nitrogen (N) concentration (25.4 and 37.6 g kg−1 in 2018 and 2019, respectively) than maize (13.0 and 23.7 g kg−1), attributed to its leguminous nature with access to atmospheric N, benefiting the growth of maize in intercropping and cabbage cultivated as a succeeding crop. Cowpea also appears to have contributed to enhanced phosphorus (P) absorption, possibly due to access to sparingly soluble P forms. In 2019, ANF in M+C was 102.5 kg ha−1, over 4-fold higher than in C (25.0 g kg−1), suggesting maize accessed more N than could cowpea provide, possibly through association with endophytic diazotrophs commonly found in tropical grasses. Full article
(This article belongs to the Special Issue Soil Fertility Maintenance and Restoration in Sustainable Agriculture)
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19 pages, 4967 KiB  
Article
Corn Grain Fatty Acid Contents in Response to Organic Fertilisers from Meat Industry Waste
by Arkadiusz Stępień, Katarzyna Wojtkowiak, Ewelina Kolankowska and Renata Pietrzak-Fiećko
Sustainability 2024, 16(3), 952; https://doi.org/10.3390/su16030952 - 23 Jan 2024
Viewed by 720
Abstract
Organic waste can provide an alternative to synthetic fertilisers for maintaining productivity with limited environmental impact. Our research evaluates the potential use of processed animal waste in corn fertilisation, which may represent a partially closed nutrient cycle of importance in a sustainable agricultural [...] Read more.
Organic waste can provide an alternative to synthetic fertilisers for maintaining productivity with limited environmental impact. Our research evaluates the potential use of processed animal waste in corn fertilisation, which may represent a partially closed nutrient cycle of importance in a sustainable agricultural system. The objective of this study was to evaluate the quantity and quality of fat obtained from corn grain fertilised with meat and bone meal (MBM) produced from animal waste. A static field experiment using MBM was conducted at the Experimental Station in Tomaszkowo (53°71′ N, 20°43′ E), Poland. The field experiment was conducted in 2014–2017 with continuous corn cultivation. The course of weather conditions in the years of this study influenced the fat content, with the lowest amount found in 2016. The application of fertilisers in the form of MBM and mineral fertilisation resulted in a slightly lower fat content compared to the variant without fertilisation. The application of mineral fertilisers and MBM influenced an increase in the content of the predominant C18:2 acid compared to the variant without fertilisation, while the opposite was shown for C18:1 cis-9 acid. The fertiliser variants are most correlated with fat yield and total polyunsaturated fatty acids. The fertiliser variants in their effects on fat yield, fat content, fatty acid profiles, and their ratios can be divided into three groups, which were related to the effects of organic fertilisers during the years of this study. The use of meat and bone meal as fertilisers cannot be regarded as a factor in increasing the fat content of corn grain. Meat and bone meal applied over several years to the same field in the quantities required to achieve optimum yield can be an element that shapes fatty acid profiles. Full article
(This article belongs to the Special Issue Soil Fertility Maintenance and Restoration in Sustainable Agriculture)
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