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Soybean compressibility and bulk density
(Amer Soc Agricultural Engineers, 2000-11-01)
The objective of this project was to study the influence of surcharge pressure and moisture content on the compressive behavior and bulk density of soybeans. Three varieties were selected with varying dimensions and shapes. ...
Cotton root volume and root dry matter as function of high soil bulk density and soil water stress
(2008-12-01)
Soil compaction reduces root growth, affecting the yield, especially in the Southern Coastal Plain of the USA. Simulations of the root restricting layers in greenhouses are necessary to develop mechanisms which alleviate ...
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho
(2008-04-01)
The aim of this work was to evaluate the effect of soil compaction caused by tractor wheel traffic on the limiting water range (LLWR), shoot growth and levels of compaction and four replications in a completely randomized ...
Effect of Densification Conditions on Physical Properties of Pellets Made From Sawmill Residues
(2016)
Sawmill residues produced in wood processing of Pilon (Hyeronimaalchorneoides)
and Eucalyptus (Eucalyptus spp) species, were used to fabricate pellets with experimental design
equipment. Different manufacturing conditions ...
EFFECTS OF CLAY FRACTION MINERALOGY ON PHYSICAL ATTRIBUTES OF A YELLOW ULTISOL TREATED WITH CHISELING
(Soc Brasil Engenharia Agricola, 2020-07-01)
The objective of this study was to evaluate the influence of minerals in the clay fraction on physical attributes of Yellow Ultisol cultivated with sugarcane and prepared with two different treatments: chiseling across the ...
Corn root length density and root diameter as affected by soil compaction and soil water content
(2007-01-01)
Negative effects of soil compaction have been recognized as one of the problems restricting the root system and consequently impairing yields, especially in the Southern Coastal Plain of the USA. Simulations of the root ...
Adubação verde em Citrus: Influência na porosidade e retenção de água de um latossolo vermelho-escuro do noroeste do estado de São Paulo
(2001-01-01)
The objective of this research was to study the porosity, bulk density and retention of water of an Oxisol, located in the Northwestern region of Sn̄o Paulo state, Brazil. The soil was cultivated with Citrus sp., to which ...
Root growth and nutrient accumulation in cover crops as affected by soil compaction
(2002-03-25)
Crop rotation using cover crops with vigorous root systems may be a tool to manage soils with some degree of compaction. Root and shoot growth as well as nutrient accumulation by summer species suitable for crop rotation ...
Near infrared spectroscopy for soil bulk density assessment
(WILEY-BLACKWELL PUBLISHING, INC, 2009)
P>Soil bulk density values are needed to convert organic carbon content to mass of organic carbon per unit area. However, field sampling and measurement of soil bulk density are labour-intensive, costly and tedious. ...
Bulk density and relationship air/water of horticultural substrate
(Universidade de São Paulo (USP), Escola Superior de Agricultura Luiz de Queiroz (ESALQ), 2004-01-01)
Alterações na densidade do substrato durante o cultivo das plantas modificam suas propriedades físicas. O trabalho teve como objetivos caracterizar fisicamente dois substratos hortícolas e avaliar o efeito da densidade na ...