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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

More from TILLAGE

Crops And Methods For Soil Improvement

A Bit Of Arithmetic
A Clean Seed-bed
A Few Combinations Are Safest
A Practical Test
A Southern Legume
A Three Years' Rotation
Acid Phosphate
Acquaintance With Terms
Adaptation To Eastern Needs
Affecting Physical Condition
All The Nitrogen From Clover
Alsike Clover
Amount Of Application
Amount Of Manure

Elimination Of Competition

Weeds pump the water out of the soil, use
up available plant-food, and compete for the sunlight. Tillage is given
for several reasons, and one is the destruction of weeds. A weeder
which stirs the soil only an inch or two deep is an excellent destroyer
of weeds when they are starting, but after the weeds are well-rooted,
the weeder acts only as a cultivator for the plants that should be
destroyed. Modern cultivators have fine teeth that let the surface
remain nearly level, and they do their best work when the weeds are
small. The use of "sweeps" should be more general. The blades are so
placed that they slip under the surface, letting the soil fall back so
that a mulch is formed.

Next: Length Of Cultivation

Previous: Controlling Root-growth

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