scholarly journals On- farm soil management practices for improving some soil properties and productivity of some field crops under salt affected soils at North Delta, Egypt

2017 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
mahmoud Saied ◽  
Gamal Elsanat ◽  
Nasser Talha ◽  
Serry El Barbary
Keyword(s):  
Soil Properties ◽  
Management Practices ◽  
Soil Management ◽  
Field Crops ◽  
Salt Affected Soils ◽  
On Farm

scholarly journals Cropping system effects on soil quality in the Great Plains: Synthesis from a regional project

2006 ◽  
Vol 21 (1) ◽  
pp. 49-59 ◽  
Author(s):  
B.J. Wienhold ◽  
J.L. Pikul ◽  
M.A. Liebig ◽  
M.M. Mikha ◽  
G.E. Varvel ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Great Plains ◽  
Management Practices ◽  
Assessment Tool ◽  
Soil Management ◽  
Assessment Tools ◽  
Soil Functions ◽  
Organic C ◽  
Environmental Function

AbstractSoils perform a number of essential functions affecting management goals. Soil functions were assessed by measuring physical, chemical, and biological properties in a regional assessment of conventional (CON) and alternative (ALT) management practices at eight sites within the Great Plains. The results, reported in accompanying papers, provide excellent data for assessing how management practices collectively affect agronomic and environmental soil functions that benefit both farmers and society. Our objective was to use the regional data as an input for two new assessment tools to evaluate their potential and sensitivity for detecting differences (aggradation or degradation) in management systems. The soil management assessment framework (SMAF) and the agro-ecosystem performance assessment tool (AEPAT) were used to score individual soil properties at each location relative to expected conditions based on inherent soil-forming factors and to compute index values that provide an overall assessment of the agronomic and environmental impact of the CON and ALT practices. SMAF index values were positively correlated with grain yield (an agronomic function) and total organic matter (an agronomic and environmental function). They were negatively correlated with soil nitrate concentration at harvest (an indicator of environmental function). There was general agreement between the two assessment tools when used to compare management practices. Users can measure a small number of soil properties and use one of these tools to easily assess the effectiveness of soil management practices. A higher score in either tool identifies more environmentally and agronomically sustainable management. Temporal variability in measured indicators makes dynamic assessments of management practices essential. Water-filled pore space, aggregate stability, particulate organic matter, and microbial biomass were sensitive to management and should be included in studies aimed at improving soil management. Reductions in both tillage and fallow combined with crop rotation has resulted in improved soil function (e.g., nutrient cycling, organic C content, and productivity) throughout the Great Plains.

scholarly journals Impact of soil properties on the soil methane flux response to biochar addition: a meta-analysis

2018 ◽  
Vol 20 (9) ◽  
pp. 1202-1209 ◽  
Author(s):  
Weiwei Cong ◽  
Jun Meng ◽  
Samantha C. Ying
Keyword(s):  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Emissions ◽  
Management Practices ◽  
Meta Analysis ◽  
Soil Management ◽  
Methane Flux ◽  
Wide Range ◽  
Flux Response

In an effort to optimize soil management practices that can help mitigate terrestrial carbon emissions, biochar has been applied to a wide range of soil environments to examine its effect on soil greenhouse gas emissions.

Effects of termite sheetings on soil properties under two contrasting soil management practices

Pedobiologia ◽  
2019 ◽  
Vol 76 ◽  
pp. 150573
Author(s):  
J. Lejoly ◽  
J.-T. Cornelis ◽  
E. Van Ranst ◽  
E. Jansegers ◽  
C. Tarpin ◽  
...  
Keyword(s):  
Soil Properties ◽  
Management Practices ◽  
Soil Management

Soil management with cultivated fallows in humid and subhumid Africa

1991 ◽  
Vol 71 (2) ◽  
pp. 147-154 ◽  
Author(s):  
F. A. Adesina
Keyword(s):  
Comparative Analysis ◽  
Soil Properties ◽  
Key Words ◽  
Management Practices ◽  
Soil Management ◽  
Gliricidia Sepium ◽  
Soil Restoration ◽  
Available Phosphorus ◽  
Fallow Management

This paper examines those variations in soil properties of woody fallows that may be expected as a result of the use of the tree Gliricidia sepium (Jacq.) in fallow management in the forest areas of Nigeria. A comparative analysis of fallows of the tree and natural fallows was carried out. The results show that differences might be expected between the soil under the two fallow types with respect to pH, boron and available phosphorus. It is suggested that the tree is a suitable species for fallow enhancement in terms of soil restoration but that its use would involve some modification of soil management practices such as the amount and type of fertilizers applied. Key words: Gliricidia sepium, fallow management, soil restoration, woody fallows

EFFECTS OF VARIOUS SOIL PROPERTIES AND MANAGEMENT PRACTICES ON INFRARED SCAN AND PANCHROMATIC IMAGERY FROM PORTAGE LA PRAIRIE, MANITOBA

1973 ◽  
Vol 53 (4) ◽  
pp. 445-457
Author(s):  
W. MICHALYNA ◽  
R. G. EILERS
Keyword(s):  
Soil Properties ◽  
Surface Structure ◽  
Soil Structure ◽  
Management Practices ◽  
Sandy Soils ◽  
Soil Management ◽  
Plant Residue ◽  
Soil Factors ◽  
Surface Conditions ◽  
Surface Moisture

Data and imagery are presented to show the effects of various soil factors, surface conditions, and soil management practices on the response on IR scan imagery. Generally, sandy soils could be differentiated from medium- and fine-textured soils; medium-textured soils could not be differentiated from the fine-textured ones. Drainage features could readily be differentiated but produced varying response depending on amount of surface moisture and surface structure. Soil structure and aggregation appear to affect response more than the size of the separates (i.e., the texture) in medium- to fine-textured soils. Salinity, silt wash, plant residue, and grass canopy resulted in lower response on IR imagery than cultivated soils without these conditions. Salt efflorescence, silt wash, and residue resulted in a higher response on panchromatic imagery.

scholarly journals Slope position and management practices as factors influencing selected properties of topsoil

2019 ◽  
Vol 70 (2) ◽  
pp. 137-146
Author(s):  
Vladimír Šimanský ◽  
Martin Juriga ◽  
Łukasz Mendyk
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Properties ◽  
Soil Structure ◽  
Management Practices ◽  
Soil Management ◽  
Slope Position ◽  
Structure Parameters ◽  
Slope Gradient ◽  
Mean Weight Diameter

Abstract An interaction between the slope position and type of soil management practices could be one of the most important factor affecting several soil properties including soil structure. Therefore, we evaluated selected soil properties including soil structure parameters in relation to slope gradient and soil management practices between Trakovice and Bučany villages (western Slovakia). The sampling sites were located in two adjacent, gently sloping fields with a NW-SE orientation. The sites also differ in soil management type: Field No. 1 was used as arable land with intensive cultivation (IC) of crops, while a greening system (GS) had been established on Field No. 2. Soil samples were taken from five geomorphological zones at each slope: summit, shoulder, back-slope, toe slope and flat terrain under the slope. Results showed that soil pH, content of soil organic matter (SOM) and carbonates depended on land use of the slopes. In GS, the water-stable macro-aggregates (WSAma) 0.5–3 mm (favourable size fraction) displayed statistical significant quadratic polynomial trend along the slope gradient. In IC the values of mean weight diameter of dry sieved aggregates (MWDd) decreased significantly along the slope gradient, while in GS the opposite trend was observed. In IC significant correlations between carbonates content (r=-0.775, P<0.01), humic acids (HA) content (r=0.654, P<0.05), colour quotients of humic substances (r=-0.706, P<0.05), colour quotients of HA (r=-0.723, P<0.05) and MWDd were determined. In GS higher content of carbonates was followed by a decrease in content WSAma, MWDd, mean weight diameter of wet sieved aggregates (MWDw) and stability index of aggregates. At the same time stabile and labile soil organic matter improved soil structure parameters in GS.

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