Agronomy 2016

What is considered to be stored food in plants?

• fats

• carbohydrates

• proteins

• fructose

An onion is a:

• modified stem

• modified leave structure

• corm

• bulb

The method of irrigation which is least subject to water loss by evaporation is:

• surface drip

• subsurface drip

• ditch and rill

• sprinkler

Which of the following crop is in the nightshade, or solanaceae, family?

• potato

• peanut

• popcorn

• cabbage

Which of the following soil types would be described as strongly leached, acid, forest soils?

• vertisols

• histosols

• inceptisols

• peptosols

Which of the following is an uptake form of nitrogen?

• NO₃

• NH₃

• N₂

• NO₂

Which of the following soil textures would likely have the lowest soil fertility?

• clay

• loamy sand

• silt loam

• sand

A chlorophyll meter determines if _ is sufficient in a plant.

• P

• K

• S

• N

_ is a major factor in the way pests are transported to host crops.

• wind

• water

• fog

• snow

If you want to maximize the amount of vegetative cover left on the soil, which of the following tillage practices should you use?

• moldboard plow

• no till

• strip till

• ridge tillage