Sentences with phrase «undisturbed soil»
"Undisturbed soil" refers to soil that has not been altered, dug up, or disrupted in any way. It is in its natural state and has not been disturbed by human activities or natural processes. Full definition
Instead of the traditional practice of plowing land and discing or harrowing it to prepare the seedbed, and then using a mechanical cultivator to control weeds in row crops, farmers simply drill seeds directly through crop residues into undisturbed soil, controlling weeds with herbicides when necessary.
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Dennis says the advantages of concrete slabs include building on grade over undisturbed soil, if conditions allow, which means the required labor, excavation, and forming costs can be held to a minimum.
«Unfortunately, Rhizoctonia persists in undisturbed soil and serves as annual reservoir of this fungus which is most pronounced in undisturbed direct - seeded fields.»
Modern scientists identify and measure past eruptions using layers of volcanic debris found in ice cores, lake sediments, and other undisturbed soils.
«You have some of the soil conservation benefits derived from left over plant tissue on the soil surface and undisturbed soil structure in the in - between row positions where you don't till.
(4) Liquid manure storage tanks shall be placed on undisturbed soil free of any organic, deleterious and extraneous materials and capable of supporting the superimposed design loads from the tanks.
Farmers can simply drill their seeds through crop stubble into undisturbed soil.
The nitrogen levels in the leaves over the graves skyrocketed to five times greater than those in the leaves over the undisturbed soil.