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An Excess Of Nitrogen
Controlling Root-growth
Cultivation Of Plants
Desirable Physical Condition Of The Soil
Elimination Of Competition
Method Of Plowing
The Breaking-plow
The Disk Harrow
Time Of Plowing
Types Of Plows

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Acquaintance With Terms
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Affecting Physical Condition
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Amount Of Application
Amount Of Manure

The Breaking-plow

Land containing enough clay to give it an excellent
soil inclines to become firm. During the growth of a crop, when plant
roots fill the soil and prevent deep stirring, the particles pack
closely together, limiting the power of the land to make fertility
available. The presence of organic matter counteracts, in part, this
packing tendency, but there are few soils that remain permanently
mellow. The breaking-plow is used to loosen the soil, and to undo the
firming that has been taking place while plant roots prevented deep
tillage. At the same time the plow may be used to bury organic matter
below the surface, affording a clean seed-bed. In some soils it has
value in bringing inert soil to the surface, and in mixing the soil

Next: Types Of Plows

Previous: Desirable Physical Condition Of The Soil

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