In the framework of research on the environmental consequences of soil compaction, the impact of soil compaction and tillage systems on uptake and losses of nutrients, in particular nitrogen, are discussed. Evidence is presented to indicate interactive relationships between the amount of soil compaction, root growth, soil water and soil aeration status, and nutrient supply and uptake by plants. The importance of soil structure and pore size distribution in influencing the transport of nutrients in compacted soil is illustrated. Emphasis is given to the negative effects of soil compaction on components of the environment due to nutrient leaching, surface runoff and gaseous losses to the atmosphere.

Effects of soil compaction and tillage systems on uptake and losses of nutrients

(...) When a soil is compacted, bulk density increases and porosity decreases as larger pores are compressed, producing a soil with a greater proportion of fine pores. The resulting soil has a reduced capacity for the movement of water and air, and offers greater resistance to root penetration. Compaction increases the diffusion rate of nutrients, as soil particles are moved closer together. This effect may, in fact, increase nutrient uptake per unit length of root; however, total plant uptake is generally reduced because the increased root penetration resistance reduces root growth. (...)

Relationship between Wheel-Traffic-Induced Soil Compaction, Nutrient Availability, and Crop Growth: A Review

Na agricultura moderna, o trafego de maquinas sobre o solo e a principal causa da compactacao, que, muitas vezes, causa decrescimos da produtividade de soja. O objetivo deste estudo foi avaliar o desenvolvimento de cultivares de soja, considerando os niveis de compactacao do solo. Para tal, foi realizado um experimento em Jaboticabal, SP, em Latossolo Vermelho textura media. Os tratamentos de compactacao foram: T0 = 0; T1* = 1; T1 = 1; T2 = 2; T4 = 4 e T6 = seis passadas, no mesmo local, de um trator de 11 t, uma ao lado da outra, perfazendo toda a superficie do solo. No tratamento T1*, a compactacao ocorreu quando o solo estava mais seco para obter um menor nivel de compactacao. O delineamento experimental foi inteiramente casualizado em parcelas subdivididas (seis niveis de compactacao e quatro cultivares), com quatro repeticoes. Foram coletadas amostras indeformadas de solo nas camadas de 0,03-0,06; 0,08-0,11; 0,15-0,18 e 0,22-0,25 m, para determinacao dos atributos fisicos. Em dezembro de 2003, foram semeados os cultivares de soja (Glycine max) IAC Foscarin 31, MG/BR 46 (Conquista), BRS/MG 68 (Vencedora) e IAC 8-2. O cultivar de soja IAC Foscarim 31 foi o mais produtivo no Latossolo Vermelho, quando comparado aos cultivares MG/BR 46 (Conquista), BRS/MG 68 (Vencedora) e IAC 8-2. Os valores de resistencia do solo a penetracao a partir dos quais a produtividade dos cultivares de soja decresceu foram de 2,24 a 2,97 MPa, conforme os cultivares.

/pdf/efeito-da-compactacao-na-produtividade-de-cultivares-de-soja-490zcww0og.pdf

Efeito da compactação na produtividade de cultivares de soja em latossolo vermelho

http://directory.umm.ac.id/Data%20Elmu/jurnal/A/Applied%20Soil%20Ecology/Vol13.Issue1.Sep1999/379.pdf

The effects of forest practices on earthworm populations and soil microbial biomass in a hardwood forest in Missouri

Soil compaction caused by wheel traffic is a major driver of soil degradation in modern agriculture and thus, a threat to agricultural sustainability. To improve the predictive capacity of compaction models and to support decision-making that implements site-specific practices for ameliorating soil compaction effects in modern agriculture, we need quantitative syntheses of the effect of soil compaction on soil physical properties and crop types. In this work, we used a meta-analytical approach to summarize results from 51 published articles on the impacts of soil compaction attributed to machinery axle load, wheel passes, compaction events and tire inflation pressure on soil bulk density (ρb), degree of compactness (DC), penetration resistance (PR), volume of water filled pores at field capacity (θFc), air permeability (ka) at field capacity, saturated hydraulic conductivity (ksat), and grain yield of corn (Zea mays L.), wheat (Triticum aestivum L.), barley (Hordeum vulgare L.) and soybean (Glycine max L.). Results from this meta-analysis (MA) showed that compaction increased soil mechanical strength shown by increased soil ρb, DC and PR. However, an increase in soil strength was more pronounced in the medium- and coarse-textured soils, and mainly in the topsoil (0–30 cm depth). Penetration resistance for the non-compacted soil (control) treatment was 1.21 MPa for the coarse-textured, 1.11 MPa for the medium-textured and 0.93 MPa for the fine-textured soils. Soil compaction on average, increased PR by 99, 94 and by 41 percent in the medium-, coarse- and fine-textured soils. Compaction decreased hydraulic conductivity characterized by ka and ksat from the topsoil down to the subsoil (>40 cm depth), and grain yield of corn, wheat, barley, and soybean. Overall, compaction decreased grain yield on average by 6–34 percent. Findings of the MA suggest that soil hydraulic properties may be more sensitive indicators to reflect the impact of soil compaction on soil structure and pore system functions in the soil profile. Future efforts should place a greater emphasis on the publication of complete metadata that allows replication and accurate comparison of results across studies and on providing open access to original datasets that can be used to improve our understanding of the effect of traffic-induced compaction on soil functioning, including crop production.

A meta-analysis of the impact of traffic-induced compaction on soil physical properties and grain yield

Soil Compaction Effects on Soybean Nodulation, N2 (C2H4) Fixation and Seed Yield1

Tillage Effects on Soybean Nodulation, N2(C2H4) Fixation, and Seed Yield1

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

G. E. Ham

Author Tools

Chat about Author

Papers

Soil Compaction Effects on Soybean Nodulation, N2 (C2H4) Fixation and Seed Yield1

Tillage Effects on Soybean Nodulation, N2(C2H4) Fixation, and Seed Yield1