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. 2022 Jul 14;12:11997. doi: 10.1038/s41598-022-16035-3

Table 8.

NPK composition of P sources.

Source Total N P K
(%)
RP 17.1
PM 2.26 1.4 1.28
FYM 1.35 0.88 1.03

RP, PM and FYM stands for rock phosphate, poultry manure and farm yard manure.