Hello, I have a query, what I can understand you are not calculating N value in molecular weight as it is already in N form, but, what if I have a fertilizer which has nitrogen in Nitrate (NO3-) or Ammonia (NH3) form, do I need to convert the N value then by the same method you have shown in this video? e.x. for Ammonia to get correct N value do I need to deduct molecular weight of 4 Hydrogen atoms from NH3 to get correct number of N value in Ammonia?
The thing that is super confusing to me is why do they call it an npk ratio when it's not a ratio but a percentage? Can you explain this to me. Some people further add to my confusion when they actually use it as a ratio, for example a product with npk value of 24,6,6 has an npk ratio of 4:1:1 Is it a ratio or percentage?
Technically, the ratio is missing a fourth term being the filler, but is not included because it is implied. Ratios when speaking generally are comparisons of qualities; thus, whether it is a ratio comparing percentages, that is allowed.
@@happydays2190 100% represents the entire weight. If you subtract the terms of the ratio from 100%, you get a percentage that is not nutrients, which we call the filler.
Hello, I have a query, what I can understand you are not calculating N value in molecular weight as it is already in N form, but, what if I have a fertilizer which has nitrogen in Nitrate (NO3-) or Ammonia (NH3) form, do I need to convert the N value then by the same method you have shown in this video? e.x. for Ammonia to get correct N value do I need to deduct molecular weight of 4 Hydrogen atoms from NH3 to get correct number of N value in Ammonia?
No, it's not necessary to do that
what are the methods of fertilizer application
An example would be spray applicators
Brilliant! Thank you!
The thing that is super confusing to me is why do they call it an npk ratio when it's not a ratio but a percentage? Can you explain this to me. Some people further add to my confusion when they actually use it as a ratio, for example a product with npk value of 24,6,6 has an npk ratio of 4:1:1
Is it a ratio or percentage?
Technically, the ratio is missing a fourth term being the filler, but is not included because it is implied. Ratios when speaking generally are comparisons of qualities; thus, whether it is a ratio comparing percentages, that is allowed.
@@StudyForceOnline so is it a ratio or a percentage?
@@StudyForceOnline what do you mean by filler
@@happydays2190 100% represents the entire weight. If you subtract the terms of the ratio from 100%, you get a percentage that is not nutrients, which we call the filler.
A ratio comparing percentages, but what makes it special is that the filler part is not included as a term, hence not your conventional ratio
as student lrealy understand, l can go infront of my fellow members and do like the way you teach me
l really like that😊
Thank for teaching npk very thank
What if the numbers are given in decimal format like 0.21-0.11-0.16 is that the same as 21-11-16?
Unlikely, as I have seen them written in decimal only to mean less than a percent. Are there any other details given?
Conversion of K2O to K also seems wrong. If K2O is 7.5 lb, K should be 6.2257 lb not 1.8675 lb.
Correct, 50 lb * 0.1245 = 6.225 lb of elemental potassium (K). Thank you!
In Q.1 the term fertilizer grade should be used instead of fertilizer ratio.
"fertilizer analysis" or "fertilizer ratio" is more popular where I live