I am also in the same boat as Arig_exec.
Yes for an “intended to be farmer” with some formal education, it is misleading as one one tends to dissect and get into the roots. But for a rural farmer, it does not matters as he is simply not bothered. I think that is the problem with we guys.
Here is a link which gives some basic info, but again some holes are left out.
sunset.com/garden/garden-bas … 000015144/
Best thing would be for an hands on Guru to explain in simple terms. I for sure know that N-P-K forms some percentage of proportion. Thus a 16:16:8 indicates out of 100 total, 16% is Nitrogen, Again 16% is Phosphorous and 8% is Potash.
Now the question arises, is it pure Nitrogen or as a compound, If so then then its % of pure NPK again becomes negligible. Another confusion is if you see the recommended dosage for some plants crops, then per acre is a few hundred kgs of each. I doubt whether this % of NPK really makes any difference. But seeing the plants under Hydroponics, gives different thoughts. !!
For Banana it is given here at Jain. Every one says Banana is one plant where you can see the difference immediately on NPK application.
This 200gm of N, some 70 gm of P and some 300 gm of K per plant in its life cycle to me looks very negligible, A banana plant with its produce weighs around 150 to 200 KG. making me tilt towards Organic methods.
Some recommended NPK for other crops are also a pittance. 100 to 200 KGs per Hectare (2.5 Acres). To apply or not to apply is a big confusion. Because for an hectare this is a small %.
Cowherd a senior and an hands on person, on this forum has very very clearly explained this. In organic methods tons and tons of microbes do this and produce NPK and provide it to plants. So make these microbes thrive in soil by organic methods.
Confusion , confusion and more confusion !!!.
On other hand, @ my house no NPK but Banana grows without a care for this world. Again at the same place it is surviving ratoon after ratoon… Only thing is what ever organic waste generated @ my house lands at this bananas bottom.
Gurus kindly step in. Both Organic and Inorganic followers kindly pitch in. With collective effort lets clear this confusion forever.