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Agronomy
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Role of Organic Amendments in Carbon and Nutrient Cycling, and...
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Role of Organic Amendments in Carbon and Nutrient Cycling, and Soil Functionality

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Farming Sustainability".

Deadline for manuscript submissions: closed (15 August 2021) | Viewed by 3611

Special Issue Editor

Dr. Lukas Van Zwieten

grade E-Mail Website
Guest Editor
NSW Department of Primary Industries, 1243 Bruxner Highway, Wollongbar, NSW 2477, Australia
Interests: organic amendments; soil C cycling; biochar systems; N-cycle and emissions of nitrous oxide; soil function and impact of agricultural inputs
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Organic amendments (OAs) are commonly applied in horticulture and intensive and, to a lesser extent, extensive agricultural systems. However, the outcomes from these practices are not particularly well understood. This Special Edition will focus on:

1) how OAs interact with soil organic matter, resulting in changes to the SOM pool and associated priming effects, and what characteristics of the OAs (e.g., stoichiometric ratio) and receiving soils control this interaction

2) quantification and/or prediction of “how much” and “when” a nutrient becomes plant available (from the OA or through SOM priming, and the role of edaphic and climate variables)

3) the role of OAs in controlling specific soil functions, and the development of resilience to stressors. The Special Edition will accept reviews and meta-analyses where they help to address the questions posed by this Special Edition, as well as controlled mechanistic studies and field trials.

Dr. Lukas Van Zwieten
Guest Editor

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. Agronomy 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 2600 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

  • organic amendments
  • soil C cycling
  • biochar systems
  • N-cycle and emissions of nitrous oxide
  • soil function and impact of agricultural inputs

Published Papers (1 paper)

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Research

15 pages, 2834 KiB  
Article
Effects of Organic Amendments on the Improvement of Soil Nutrients and Crop Yield in Sandy Soils during a 4-Year Field Experiment in Huang-Huai-Hai Plain, Northern China
by Yingxing Zhao, Yuanquan Chen, Hongcui Dai, Jixiao Cui, Lin Wang and Peng Sui
Agronomy 2021, 11(1), 157; https://doi.org/10.3390/agronomy11010157 - 15 Jan 2021
Cited by 18 | Viewed by 3046
Abstract
To address the low productivity of sandy farmlands, our study aimed to conduct a comparative study on the effects of different organic amendment (OA) inputs for the potential improvement of crop yield and soil quality in sandy alkaline farmlands through the selection of [...] Read more.
To address the low productivity of sandy farmlands, our study aimed to conduct a comparative study on the effects of different organic amendment (OA) inputs for the potential improvement of crop yield and soil quality in sandy alkaline farmlands through the selection of a suitable OA. This study set up straw (ST) returning as control and chemical fertilizer (CF) treatment as a side control, and chose three OAs returning as treatments, including pig manure (PM), biogas residue (BR), and straw biochar (BC), for improving soil fertility, with all amendments having matched doses of nitrogen (N). The experiment was conducted at the Wuqiao Experimental Station (37°41 N, 116°37 E) of China Agricultural University in Hebei Province, China, from October 2012 to September 2016. The cropping rotation was the winter wheat (Triticum aestivum L.)-summer maize (Zea mays L.) rotation system. Through a consecutive four-year field experiment, the principal results showed that three types of OA application significantly increased soil organic carbon from 1.46 g kg−1 to 8.24 g kg−1, soil total N from 0.21 g kg−1 to 0.64 g kg−1, soil available potassium from 55.85 mg kg−1 to 288.76 mg kg−1, and soil available phosphate from 4.86 mg kg−1 to 65.00 mg kg−1 in the 0–20 cm soil layer. The BR was the most effective in improving soil nutrients as compared with the ST. The PM and BR treatments were more conducive to promoting crop yield by 6–20% than ST, and the BC treatment significantly reduced the yield of winter wheat by 19% and summer maize by 8%. As the BR and PM treatments improved the soil nutrient content and significantly increased crop yield, these were the top choices for transforming the low-yield sandy farmlands. Full article
(This article belongs to the Special Issue Role of Organic Amendments in Carbon and Nutrient Cycling, and Soil Functionality)
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