Chapter 3 Flashcards
(T or F)
Soil fertility is achieved by understanding what promotes and increases soil quality for optimal plant productivity.
True
Primary nutrients needed by plants are
nitrogen, phosphorus, potassium
Decomposed organic matter is called
compost
___________take lots of nitrogen from the soil
Legumes
_______ is the byproduct of steel manufacturing.
Slag
_______________ are required in large amounts
Macronutrients
_______________ are required in small amounts
Micronutrients
Tiny clay and humus particles carrying a slight electrical charge are called _________________
soil colloids
An anion is ___________
negatively charged
A particle of silicate clay is called a
micelle
A surface function where plants take nutrients out of the soil solution is called
absorption
(T or F)
Soil Ph can either be acidic or alkaline.
True
Defined as the number of positive charges a sample of soil can hold
cation exchange capacity
Are exchangeable cations exchanged easily?
exchanged very easily
A circular arrangement of leaves is called
rosetting
T or F?
Plants are autotrophic.
True
What nutrient is needed to make plant protein?
nitrogen
iron
potassium
magnesium
nitrogen
A plant with a nitrogen deficiency has:
green leaves
stunted growth with yellowing leaves
healthy root system
tall green stem
stunted growth with yellowing leaves
Magnesium is needed to make what in a plant
protein
chlorophyll
photosynthesis
chlorophyll
When a plant has a potassium deficiency the leaves will look like.
green with yellow veins
yellow with yellow veins
green with green veins
yellow with green veins
yellow with green veins
T or F?
Potassium is needed for a plant to have a healthy immune system.
True
Phosphate deficiency turns the veins in the leaves this color;
purple
blue
green
yellow
purple
T or F ?
Hydroponics is a new agriculture practice where plant are grown in water instead of soil.
True
Stimulates early growth and root formation, hastens maturity, promotes seed production, makes plants hardy
Phosphorus
Potassium
Magnesium
Nitrogen
Calcium
Sulfur
Phosphorus
Improves plant’s ability to resist disease and cold, aids in the production of carbohydrates
Phosphorus
Potassium
Magnesium
Nitrogen
Calcium
Sulfur
Potassium
An ingredient of chlorophyll. Aids in the translocation of starch within a plant, essential for formation of oils and fats
Phosphorus
Potassium
Magnesium
Nitrogen
Calcium
Sulfur
Magnesium
Promotes rapid vegetative growth and gives plants healthy green color
Phosphorus
Potassium
Magnesium
Nitrogen
Calcium
Sulfur
Nitrogen
Aids in the movement of carbohydrates in plants, essential to healthy cell walls and root structure
Phosphorus
Potassium
Magnesium
Nitrogen
Calcium
Sulfur
Calcium
Aids in the formation of oils and parts of the protein molecules
Phosphorus
Potassium
Magnesium
Nitrogen
Calcium
Sulfur
Sulfur
Promotes formation of Vitamin A, excess is very toxic
Copper
Molybdenum
Chlorine
Iron
Zinc
Boron
Manganese
Copper
Required by plants for use of nitrogen
Copper
Molybdenum
Chlorine
Iron
Zinc
Boron
Manganese
Molybdenum
Required in photosynthetic reactions of plants
Copper
Molybdenum
Chlorine
Iron
Zinc
Boron
Manganese
Chlorine
Essential for formation of chlorophyll, releases energy from sugars and starches
Copper
Molybdenum
Chlorine
Iron
Zinc
Boron
Manganese
Iron
An essential constituent of several important enzyme systems in plants. It controls the synthesis of indoleacetic acid, an important plant growth regulator. The micronutrient most often needed by western crops
Copper
Molybdenum
Chlorine
Iron
Zinc
Boron
Manganese
Zinc
Aids in the assimilation of calcium; amount required is extremely small
Copper
Molybdenum
Chlorine
Iron
Zinc
Boron
Manganese
Boron
Serves as an activator for enzymes in growth processes. Assists iron in chlorophyll formation. Generally required with zinc in foliar spraying of citrus
Copper
Molybdenum
Chlorine
Iron
Zinc
Boron
Manganese
Manganese
