Macro porosity - Study guides, Class notes & Summaries

A soil has a bulk density of 1.3 g/cm^3, a particle density of 2.6g/cm^3, a total porosity of .5 and a gravimetric water content of 0.2. Calculate the water-filled porosity. correct answer: .26 After a growing season of heavy tillage traffic across a soil, a soil property that is affected is: correct answer: bulk density From a biological point of view, the most important role of structural development in clayey textured soils is to provide an increase in: correct answer: macro porosity...

SCSC 301 Exam with Practice Questions and Answers A soil has a bulk density of 1.3 g/cm3, a particle density of 2.6 g/cm3, a total porosity of .5, and a gravimetric water content of .2. calculate the water-filled porosity. a) .2 b) .24 c) .26 d) .5 e) 1.30 ANSWER c After a growing season of heavy tillage traffic across a soil, a property that is affected is: a) texture b) bulk density c) particle density d) consistence e) color ANSWER B From a biological point of view, the...

After a growing season of heavy tillage traffic across a soil, a soil property that is affected is: correct answer: bulk density From a biological point of view, the most important role of structural development in fine textured soils is to provide an increase in: correct answer: macro porosity The purity of light reflected by a soil is called: correct answer: chroma A word used to describe the consistence of soil is: correct answer: firm In a soil, having a color of 10YR 4/1, th...

SCSC 301 Exam 2 with Questions and Answers Soil Atmosphere ANSWER -Varies from atmosphere -Contains 2 main gases needed for the two most important biological processes -High CO2, lower O2 than atmosphere -vital for soils to exchange gases Photosynthesis - consumes CO2 and H2O and releases O2 and produces sugars Respiration - Consumes O2 and releases CO2, H2O, and energy -Microbes and plant roots need O2 and removal of CO2 C6H12O6 + 6O2 --> <-- 6CO2 + 6H2O Oxygen Availabi...

After a growing season of heavy tillage traffic across a soil, a soil property that is least affected is: correct answer: Particle density From a biological point of view, the most important role of structural development in clayey textured soils is to provide an increase in: correct answer: macro porosity The purity of light reflected by a soil is called: correct answer: chroma A word used to describe the consistence of a soil is: correct answer: plastic A soil horizon in which ...

____ is added to acidic soil because it adjusts pH to the point that most soil macro- and micro-nutrients are plant available. - Lime __________ had humans on its soil for more than 46,000 years, had few inputs from the outside world, was near the equator, and no European explorers until the 1930s. - Papua New Guinea ___________ will catch fire during harvest of sugar cane in Florida (only one soil order will catch fire). - Histosols 1 billion people go to bed hungry every night...why? Eno...

SCSC 301 Exam 1 (Graded A Plus) with Questions and Answers After a growing season of heavy tillage traffic across a soil, a soil property that is affected is: ANSWER bulk density From a biological point of view, the most important role of structural development in fine textured soils is to provide an increase in: ANSWER macro porosity The purity of light reflected by a soil is called: ANSWER chroma A word used to describe the consistence of soil is: ANSWER firm In a soil, having a...

TAMU SCSC 301 Final Exam Questions with Complete Solutions After a growing season of heavy tillage traffic across a soil, a soil property that is least affected is: - Answer-Particle density /.From a biological point of view, the most important role of structural development in clayey textured soils is to provide an increase in: - Answer-macro porosity /.The purity of light reflected by a soil is called: - Answer-chroma /.A word used to describe the consistence of a soil is: - Answer...

Practices that add organic matter and reduce tillage can be expected to most significantly increase the ________ in a soil. - ANSWER Porosity The percentages of which soil components represent the minimum information necessary in order to determine the textural class of a soil? - ANSWER Only two of sand, silt, and clay Polysaccharides produced by soil microbes and similar synthetic polymers applied to soils are largely responsible for the crusts that form when rain follows tillage. T/F - A...