Chapter 4 & 5 Flashcards
What is the preparation of the soil to provide a favorable environment for seed placement and germination and crop growth?
Tillage
Does conventional tillage
a. use plows and harrows
b. prepares the field for crop production
c. both of these
c. both of these
What breaks up the soil and usually buries residue?
Primary tillage
(T or F)
Secondary tillage produces a finer seedbed.
True
(T or F)
The moldboard plow is only used with secondary tillage
False
Lister plows have how many moldboard plows attached to them?
2
Where one plant emits chemicals from the roots that suppress growth of other plants is called what?
allelopathy
Practice of harvesting two crops from the same piece of ground in the same year is called?
double cropping
This is applied to farming in low-rainfall areas without irrigation.
dry-land farming
(T or F)
Fallow is the practice of leaving the soil crop and weed free to store moisture.
True
The movement of soil particles from one place to another is called?
soil erosion
Tilth is considered what?
The ability to do work
Crops with fibrous roots tend to hold the soil in place and reduce erosion.
sod crops
What is the term used to describe the growing of selected crops in a regular order on any field?
crop rotation
(T or F)
Terracing is the practice of constructing embankments or ridges across sloping soils.
True
