scholarly journals Soil structure recovery following compaction – short‐term evolution of soil physical properties in a loamy soil

2021 ◽  
Author(s):  
Thomas Keller ◽  
Tino Colombi ◽  
Siul Ruiz ◽  
Stan Schymanski ◽  
Peter Weisskopf ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Structure ◽  
Soil Physical Properties ◽  
Short Term ◽  
Loamy Soil ◽  
Term Evolution

scholarly journals Physical Properties of Texturally Different Soils After Application of Biochar Substrates

2020 ◽  
Vol 66 (2) ◽  
pp. 45-55
Author(s):  
Dušan Šrank ◽  
Vladimír Šimanský
Keyword(s):  
Soil Moisture ◽  
Physical Properties ◽  
Sandy Soil ◽  
Farmyard Manure ◽  
Total Porosity ◽  
Soil Physical Properties ◽  
Climatic Conditions ◽  
Soil Amelioration ◽  
Loamy Soil ◽  
Different Soils

AbstractScientific studies show that the efficiency of biochar can be improved by its combination with other fertilisers. For this reason, fertiliser manufacturers are working to create products that combine biochar with other soil fertility enhancers suitable for different soil-climatic conditions. In this study, two types of biochar substrates (1. biochar blended with farmyard manure, and 2. biochar blended with farmyard manure as well as with digestate) at rates of 10 and 20 t/ha were applied alone or in combination with other manure and mineral fertilisers. These were added to Arenosol (sandy soil, Dolná Streda, Slovakia) and Chernozem (loamy soil, Veľké Úľany, Slovakia) to evaluate the soil physical properties to test the potential of these amendments for soil amelioration in texturally different soils. The results showed that the application of biochar substrates alone increased soil moisture, the volume of capillary pores, and decreased aeration and volume of non-capillary pores. The application of biochar substrates with mineral fertilisers increased aeration, content of water-stable macro-aggregates (WSAma), total porosity, and decreased soil moisture and the content of water-stable micro-aggregates (WSAmi) in sandy soil. In loamy soil, when compared to unfertilised control, the biochar treatments increased content of WSAma, content of dry-sieved macro-aggregates, and decreased content of WSAmi and content of dry-sieved micro-aggregates. The combination of biochar substrates together with manure had no effect on changes in the physical properties of loamy soil.

Short-Term Effects of Land Leveling on Soil Physical Properties and Microbial Biomass

2003 ◽  
Vol 67 (5) ◽  
pp. 1405-1417 ◽  
Author(s):  
K. R. Brye ◽  
N. A. Slaton ◽  
M. C. Savin ◽  
R. J. Norman ◽  
D. M. Miller
Keyword(s):  
Microbial Biomass ◽  
Physical Properties ◽  
Soil Physical Properties ◽  
Short Term ◽  
Land Leveling ◽  
Short Term Effects

scholarly journals Temporary effect of chiseling on the compaction of a Rhodic Hapludox under no-tillage

2012 ◽  
Vol 36 (2) ◽  
pp. 547-555 ◽  
Author(s):  
Sâmala Glícia Carneiro Silva ◽  
Álvaro Pires da Silva ◽  
Neyde Fabíola Balarezo Giarola ◽  
Cássio Antônio Tormena ◽  
João Carlos de Moraes Sá
Keyword(s):  
Physical Properties ◽  
Bulk Density ◽  
Soil Physical Properties ◽  
No Tillage ◽  
Short Term ◽  
Wetting And Drying ◽  
Soil Layers ◽  
Structural Recovery ◽  
One Year ◽  
High Degree

Mechanical chiseling has been used to alleviate the effects of compaction in soils under no-tillage (NT). However, its effect on the soil physical properties does not seem to have a defined duration period. The purpose of this study was to evaluate the behavior of the bulk density (BD) and degree of compaction (DC) at different soil depths, after chiseling in no-tillage, for one year. The experiment was performed in Ponta Grossa, Paraná State, Brazil, using an Oxisol (Rhodic Hapludox). Bulk density and DC were previously measured in an area under NT for 16 years, then immediately after chiseling (CHI) in May 2009, six months after chiseling (CHI6M) in October 2009 and one year after chiseling (CHI12M) in May 2010. In the layers 0.0-0.10, 0.10-0.20 and 0.20-0.30 m, there was a significant BD reduction CHI and a marked increase CHI6M. The BD values measured CHI12M were similar to those before tillage. Chiseling reduced the DC in the layers 0.0-0.10 m and 0.10-0.20 m, but returned to the initial values one year later. During the evaluation periods CHI, CHI6M and CHI12M, the BD increased in the layer 0.30-0.40 m, compared with NT. The highest DC values were observed six months after chiseling; nevertheless the structural recovery of the soil was considerable, possibly due to the high degree of soil resilience and the influence of the wetting and drying cycles detected in the study period. The chiseling effects, evaluated by BD and DC, lasted less than one year, i.e., the beneficial short-term effects of chiseling on the reduction of the surface BD increased the risk of compaction in deeper soil layers.

scholarly journals The Effects of Enclosing Cultivated Land on the Physical Properties of Soil in the Loess Hill Region of Ordos

2016 ◽  
Vol 18 (3) ◽  
pp. 1-14
Author(s):  
Lin Wang ◽  
Fengna Xue ◽  
Wenbang Gao ◽  
Jing Shi ◽  
Shanshan Sun ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Moisture Content ◽  
Soil Bulk Density ◽  
Soil Physical Properties ◽  
Ecological Systems ◽  
Cultivated Land ◽  
Short Term ◽  
Native Flora ◽  
Hill Region ◽  
Properties Of Soil

Abstract Protection of the environment by returning farmland to forest and grassland through enclosing areas of land to permit regeneration of native flora is being implemented in the Loess hill region of China. Soil physical properties are important components of ecological systems, as comparisons between cultivated and enclosed areas demonstrate. The results showed: the soil moisture content in the enclosed area was 14.6% and that in the cultivated area was 14%; the soil bulk density and soil porosity were respectively 1.45 g/cm3 and 45.28% in the enclosed areas, and respectively 1.46 g/cm3 and 44.79% in cultivated land. The alteration of soil physical properties was not big between cultivated areas and enclosed areas in the short term.

TILLAGE PRACTICES ON A NORTHERN CLAY SOIL: EFFECTS OF SOD BREAKING METHODS ON CROP PRODUCTION AND SOIL PHYSICAL PROPERTIES

1986 ◽  
Vol 66 (3) ◽  
pp. 385-395 ◽  
Author(s):  
M. C. J. GREVERS ◽  
A. A. BOMKE
Keyword(s):  
Physical Properties ◽  
Soil Temperature ◽  
Crop Production ◽  
Soil Structure ◽  
Aggregate Size ◽  
Growing Season ◽  
Soil Physical Properties ◽  
Minor Effect ◽  
Tillage Practices ◽  
A Minor

Crop production in northern regions is mainly affected by a short growing season, and can also be further limited on heavy-textured soils by cool, wet spring conditions. Selected sod breaking practices were carried out resulting in maximum differences with respect to sod burial and soil physical properties. Soil physical properties measured included bulk density, air-filled porosity, aggregate size distribution, surface roughness and soil temperature. The main effects of the different tillage systems were: (1) differences in soil structure in terms of density and air-filled porosity, and (2) differences in the degree of residue incorporation. Moldboard plowing resulted in more favorable aeration porosity and soil temperature in spring than chisel plowing or discing. Rotovating prior to either moldboard plowing or chisel plowing had only a minor effect on soil physical conditions. In general the more effective the tillage was in incorporating crop residue and thatch, the higher was the subsequent soil temperature during the first 5 wk of the growing season. The differences in crop production followed the same trend as did differences in soil structure. This effect persisted through the third cropping season. Increasing levels of fertilizer N increased barley yields in all tillage treatments but did not offset the effect of physical differences caused by the tillage implements. Key words: Northern soils, tillage, soil temperature, soil structure, fertilizer nitrogen, barley

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