MgO Fertilizer Sole and Combined with Organic and Inorganic Fertilizers: Effect on Soil Chemical Properties, Turmeric Performance, and Quality in a Tropical Alfisol

Table 5

Effect of Mg fertilizer, PM, NPK fertilizer, and their combinations on mineral and vitamin contents of turmeric rhizome (means of 2017 & 2018 pooled).

	Na (%)	K (%)	Mg (%)	Ca (%)	Fe (%)	Vitamin C (%)	Vitamin A (%)
Control	142.6f	101.7f	221.2e	81.6e	7.2f	1.2f	4.5f
Poultry manure (PM)	256.3c	125.8d	323.3c	136.6ab	17.2ab	2.5ab	13.6b
NPK 15-15-15	201.7d	130.1ab	285.7d	92.4d	14.7d	1.8d	9.5d
MgO fertilizer	192.6e	110.5e	368.3b	100.1cd	12.7e	1.5e	7.3e
PM + MgO	527.8a	129.3cd	402.1a	140.4a	18.1a	2.8a	15.6a
NPK + MgO	321.6b	137.7a	286.3d	96.7cd	15.6cd	2.0c	10.6cd

Values followed by similar letters under the same column are not significantly different at p = 0.05 according to Duncan’s multiple range test.