搜索结果: 1-12 共查到“农学 soil physical properties”相关记录12条 . 查询时间(0.25 秒)
Effect of the skid trail cross section and horizontal alignment on forest soil physical properties
soil bulk density ground-based skidding cross slope Civil3D software Bahramnia forest
2017/6/26
Horizontal alignment and cross section characteristics of a skid trail in a ground-based skidding system including curves, wheel ruts and cross slope can impact on the forest soil. In this study the m...
Variations in selected soil physical properties with landforms and slope within an inland valley ecosystem in Ashanti region of Ghana
bulk density landscape position moisture content particle size distribution sawah rice field total porosity
2015/3/3
One peculiar feature of the inland valleys abundant in West Africa is their site-specific hydrology, underlain mainly by the prevailing landforms and topography. Development and management of these la...
Effect of Cutting Regime on Soil Physical Properties of Wet Thistle Meadows
soil physical properties wet grassland
2015/3/1
Changes of selected soil physical properties (porosity P, soil organic matter SOM, bulk density ρd, particle
density ρz
, characteristics of water retention capacity – maximum capillary water capac...
Reduced tillage for tobacco (Nicotiana tabacum L.) production in East Cuba. Soil physical properties and crop yield
soil conditions tobacco production
2014/10/28
The area devoted to growing tobacco (Nicotiana tabacum L.) in the province of Granma, Cuba, accounted for nearly 2600 ha in the year 1997, which represented the 4% of the total tobacco plantation area...
Long-term effects of management systems on crop yield and soil physical properties of semi-arid tropics of Vertisols
Broadbed and Furrow System Minimum Tillage Long-Term Experiment Sustainability
2013/3/5
Long-term experiments can be used to assess management induced changes in soil properties and sustainability of the management system in terms of the productivity. Such data are scanty, especially in ...
Effect of Crop Residue on Soil Physical Properties and Rice Yield on an Acid Ultisol at Abakaliki, Southeastern Nigeria
Crop Residue Acid Soil Physical Properties Rice Cultivars Rice Growth Rice Yield
2010/11/16
A study was conducted in 2005 and 2006 to evaluate the effect of different types of crop
residue mulch on soil physical properties and rice yield. The crop residue treatments were dry rice straw, bur...
SPRING TRITICALE YIELDING AND CHANGES IN SELECTED SOIL PHYSICAL PROPERTIES RESULTING FROM DIFFERENT PRE-SOWING CULTIVATION METHODS
pre-sowing cultivation physical properties of soil spring triticale nitrogen fertilisation
2009/3/30
The application of different soil cultivation methods before sowing increased the values of investigated physical soil properties when simultaneously the depth of cultivation and soil compaction were ...
Tillage and mulch effects on some soil physical properties in shallow red brown terrace soils of Bangladesh
Soil Physical Properties Tillage and Mulch Effects
2009/3/12
A field and laboratory experiment was conducted during 2000-2001 and 2001-2002 to estimate the tillage and mulch effects on physical properties of soil. The experiment was laid out in split-plot desig...
Effect of Tillage Implements and Operating Speeds on Soil Physical Properties and Wheat Emergence
Primary soil tillage soil physical properties wheat emergence
2009/1/9
Tillage is an operation to improve soil conditions for optimal crop emergence and yield. Different tillage implements and operational variables may affect soil physical properties. An experiment with ...
Effect of the change of accompanying cation of mineral nitrogen fertilizers on soil physical properties
slaking structural properties loamy soil Na and Ca as cations
2008/11/19
abstract50 cm increased and the slaking resistance decreased on those plots. The other soil structural properties determined were not significantly affected. The reason behind these unexpected finding...
Soil physical properties under winter wheat grown with different tillage systems at selected locations
soil water content soil bulk density soil stability in water readily-dispersible clay (RDC)
2008/11/11
The aim of this research was to determine in 2006 and 2007 the effects of different tillage systems on the soil physical properties: bulk density, water content and stability. Analyses of physical pro...
Soil compaction effect on the soil physical properties and the content of nutrients in spring barley (Hordeum vulgare L.) and spring wheat (Triticum aestivum L.)
soil compaction soil properties spring barley spring wheat nutrients
2010/1/13
The long-term use of heavy-weight agricultural machinery has caused extensive and lasting phenomena of degradation, especially in the basic layer of soil. The influence of soil compaction by heavy tra...