Nutrient content in poultry manure

Dear friends,

Please have a look at this news item 'Nutrient content in poultry manure' appeared in 'Farm Queries' section of 'The Hindu' on 20/08/2009.

An email that was sent to 'farmqueries@thehindu.co.in' requesting it to rectify the mistake in the article to clear the doubts of it's readers is reproduced here below:.

"Dear Sir,

I regret to note that for a reply to a query about 'Poultry Manure' in 'Farm Queries' section on 20/08/2009 it has been wrongly stated as 'the fertilizer value of 1 ton of dried cage poultry manure is equivalent to 100 Kgs of Urea, 150 kgs of Super Phosphate, 50 kgs of Potash Etc..

The correct nutrient value could be in the approx maximum range of 3% N, 2.5% P and 1.6% K (i.e 60Kgs of Urea, 150 Kgs of Super phosphate and 27 Kgs of Potash)
Please clarify your stand."

Nutrient contents of a well digested caged poultry manure is as follows:

N	3%
P	2.5%
K	1.6%
S	1%
Calcium - Ca	7%
Magnesium - Mg	1%
Sodium - Na	0.4%
Iron - Fe	1600 ppm
Manganese - Mn	580 ppm
Zinc - Zn	310 ppm
Copper - Cu	40 ppm
Boron -	10 ppm
Molybdenum - Mo	3 ppm
Residual Qty.	Pure humus
PH	7.4 (Alkaline)

Comments from readers and fellow bloggers in this regard is eagerly awaited.

Regards,
Vishnu Sankar

(Please have a look at this detailed article published by The Hindu on 28/10/2009 on the same line)