Fertilizers Flashcards
Any material supplemented to the soil or applied to the plant to supply the essential elements for plant nutrition
Fertilizer
Fertilizer Grade
Guaranteed percentage of total N, available Phosphorus p2o5, water soluble potassium (k2o
Total percentage of nutrients in a fertilizer material(add elements)
Total plant food
a material that holds the fertilizer in a form of a suitable use
Carrier; 100% - Total plant food = carrier
amount of N potassium and phosphorus in kg that is recommended per hectare
Fertilizer Recommendation
(COF) plant or animal origin material that has undergone decomposition
Natural Organic
ex. chicken manure, compost
fertilizer material that is a synthetic product of chemical reaction of raw materials
Chemical or inorganic
a. Natural Chemical- potassium , rick phosphate b. Synthetic chemical-ammonium phosphate, complete fertilizer
contain only 1 of the 3 major elements
Single Fertilizer
ex. urea, ammonium sulfate, muriate of potash
contain only 2 of the 3 major elements
Incomplete Fertilizers
ex. ammonium phosphate, 17-0-17
contain all the 3 major elements
Complete fertilizers
ex. 14-14-14,17-17-17,10-15-15
Contain 2 or more of the major fertilizer elements that are supplied by 2 or more fertilizer materials
Mixed Fertilizers
ex. ap+mp
ammonium phosphate
(16-20-0)
urea
(46-0-0)
ammonium sulfate
(21-0-0)
solophos
(0-18-0)