Deficiencies Flashcards
What are signs of good nitrogen concentration in plants
Rapid plant growth
Dark green vegetation
High protein content in seeds
What are signs of poor nitrogen concentration in plants?
Slow growth, small plants
Pale green or yellow (due to lack of chlorophyll)
Necrosis(death) in older leaves as N is used in younger leaves
What are phosphorus’ essential roles?
Required for optimum growth and reproduction
Involved in energy transfer in plants
Production and development of cells
Transfer DNA to new cells
Seed formation and development
What signs are there a soil has sufficient phosphorus concentration?
Vigorous growth
Early maturing
Increased resistance
Improved flower formation
Increased stalk/stem strength
What are signs of poor phosphorus concentrations in soils?
Stunted growth
Lack of fruits or flowers
Wilting
Discoloured blue-purple leaves
Delayed maturity
What are potassium’s essential roles?
Protein synthesis
Translocation of carbohydrates
Regulation of plant stomata and water use
Promotion of disease resistance
Activation of plant enzymes
What are signs of. Sufficient potassium concentrations in a soil?
Increased crop yields
Increased root growth
What are signs of a potassium deficiency?
Reduced crop yield
Scorching of leaves(chlorosis) along lead margins
Slow growth
Poorly developed root system
Weak stalks, leading to lodging in cereals
Low sugar content in fruits
What is a role of calcium in plants
It is needed for cell wall development
What is nitrogen a component of?
Component of chlorophyll
Component of amino acids
Component of DNA
Component of ATP
