NR 2 4.01 Soils

Mountains cove with boulders, wet swamps have this land capability

• I

• II

• IV

• V

To reduce erosion and maintain soil organic matter, use the following crop system

• maintenance

• titlth

• improving

• conserving

mountain soil located on severly eroded 10% slope would be placed in the land capability class

• I

• IIw

• IIIs

• IVe

To prevent soil erosion on a hillside, you should

• mulch the area with wood chips

• plant crops across the slope of the hill

• sow different crops on the hilltop from year to year

• plant rows of trees across the direction of the prevailing wind

0% - 6% sloped land with 20" - 40" of sandy topsoil that has rapid water removal and is well drained would be classified as

• I

• IIs

• IIIw

• IVe

High cat-ion exchange number is better for plants because

• decreases diseases

• identifies beneficial insects

• indicates less leaching of nutrients

• indicates a low nutrient reserve

difference between conservation tillage and conventional tillage is

• conservation tillage is done in the winter

• conservation tillage is more expensive to perform

• conventional tillage eliminates plowing

• conventional tillage requires disking of the land

If flowing water is washing topsoil off the land, the land capability subclass is

• e

• s

• t

• w

IVw classfication will have problems with

• drainage

• erosion

• sand

• slope

When purchasing lime as 5 tons per acre can also be listed as 5

• kg

• m

• t

• tk