Plant Macronutrients Flashcards
What are the 9 plant Macronutrients?
Carbon, Oxygen, Hydrogen, Nitrogen, potassium, calcium, Magnesium, phosphorus, Sulfur
What % of carbon is in dry tissue?
45%
What are he major functions for carbon and what is an early visual sign of nutrient deficiency?
Major component of plants organic compounds and an early sign is poor growth.
What % of oxygen is in the dry tissue?
45%
What are he major functions for oxygen and what is an early visual sign of nutrient deficiency?
Major component of plants organic compounds and an early sign is poor growth.
What % of Hydrogen is in the mass dry tissue?
6%
What are he major functions for Hydrogen and what is an early visual sign of nutrient deficiency?
Major component of plants organic compounds the result is wilting, poor growth.
What % is nitrogen in mass dry tissue?
1.5%
What are he major functions for Nitrogen and what is an early visual sign of nutrient deficiency?
Component of nucleus acids, proteins, and chlorophyll and an early sign of nutrient deficiency is chlorosis at the tips of older leaves ( common in heavily cultivated soils or soils low in organic material)
What % is potassium?
1.0%
What are he major functions for potassium and what is an early visual sign of nutrient deficiency?
Cofactor of many enzymes; major solute functioning in water balance; operation of stomata. An early visual deficiency sign would be Mottling of older leaves, with drying of leaf edges; weak stems; roots poorly developed (common in acidic or sandy soils)
What is the % in calcium?
0.5%
What are he major functions for calcium and what is an early visual sign of nutrient deficiency?
Important component of middle lamella and cell walls; maintains membrane functions; signal transduction. An early sign is crinkling of young leaves; death of terminal buds ( common in acidic or sandy soils)
What % is Magnesium?
0.2%
What are he major functions for Magnesium and what is an early visual sign of nutrient deficiency?
Component of chlorophyll; cofactor of many enzymes. Earl visual signs of deficiency chlorosis between veins, found in older leaves( common in sandy and acidic soils)
