Theory:

 plant requirement:

 oxygen carbon dioxide =  most  required

 nitrogen Phosphorus potassium =  macronutrients

 Iron Magnesium Sulphate =  micro  nutrients

 iron magnesium Boron zinc copper chlorine =  micro micronutrients

 types of fertilizers: 

  1.  natural fertilizers:  this is produced by using organic things like cow dung ko dove letter of penzance 
  2.  chemical fertilizers:  plant or organic based fertilizers are processed so that it unlocks the nutrients easily notice given it is known as chemical fertilizers
  3.   bio fertilizers:  the fertilizers increase the quality of bio logical organisms in soil the bacteria except

  Bacteria is like

Rhizobium

Acetobacter

  1.  mixed fertilizers:  this type of fertilizer is the combination of Nitrogen Phosphorus and Potash in one

N   P   K 

20: 20: 0

18: 46: 0

10: 26: 26

This means in the example 18: 46:0

N= 18%

P = 46%

100kg = 18:46

N= 18kg 

P = 46kg

Water soluble fertilizers:

N  P  K 

19:19:19

12: 61: 0

0:52:34

13: 0 45

13:40: 13

This type of fertilizers are made water soluble so these are easier to distribute along with water geyser super advantages in hydroponic systems