- Zero-Till begins with this important operation.
Your answer:
Planting with a zero-till drill.
Spraying emerging weeds prior to seeding.
Buying a zero-till drill.
Straw and chaff spreading with the combine.
- Spreading straw and chaff is best accomplished by...
Your answer:
a spring tooth harrow.
a rotary hoe.
cattle grazing in the crop stubble.
a properly adjusted straw\chaff spreader on the combine.
- Ten inches of standing crop stubble filled with snow may provide how many inches of water?
Your answer:
Over 3" of water.
1"-3" of water.
.1" of water.
.5" of water.
- A diverse crop rotation is important in zero-till. The most diverse crop rotation shown below is...
Your answer:
wheat, barley, oats
wheat, canola
corn, soybeans
wheat, peas, corn
- Soil disturbance from tillage...
Your answer:
plants weed seeds that otherwise would not germinate.
damages soil fungi important to most crops.
crushes soil aggregates leading to crusting, reduced infiltration and water holding capacity.
all of the above.
- The best herbicide in a no-till system is...
Your answer:
one that kills annual grassy weeds.
a healthy and vigorously growing crop.
one that is non-selective.
one that kills broadleaf weeds.
- This crop nutrient should be increased 10-15% during the first few years of no-till until the soil reaches a new biologic equillibrium.
Your answer:
Iron
Nitrogen
Phosphorous
Potassium
- How much of the soil surface should be covered with crop residue to limit water evaporation?
Your answer:
35%
15%
65%
45%
- Zero-till crops can and should be seeded shallow because...
Your answer:
the soil is typically moist close to the surface.
a zero-till drill is not capable of seeding deep.
zero-till drills are not capable of seeding through old crop residue.
young plant roots cannot reach the fertilizer.
- To switch to zero-till you must be willing to...
Your answer:
use a lot more herbicides.
sell all of your existing farm equipment.
buy a bigger combine.
become a student of zero-till.