Table 12.

Postharvest soil ammonium bicarbonate-diethylenetriamine pentaacetate (AB-DTPA) extrated P (mg kg⁻¹) as influenced by maize and wheat cropping supplied with 144 mM KH₂PO₄ foliar solution at given soil-applied P levels in calcareous soils.

Foliar P	Method	P Levels (kg ha−1)				Mean
		0	20	40	60
Year I
0	BC	1.37	1.65	2.13	2.45	1.90
0	BD	1.72	2.07	2.40	2.81	2.25
144 mM	BC	2.24	2.74	3.02	3.33	2.83
144 mM	BD	2.55	3.02	3.41	3.73	3.17
Year II
0	BC	1.49	1.81	2.33	2.60	2.05
0	BD	1.80	2.26	2.57	3.01	2.41
144 mM	BC	2.35	2.81	3.20	3.42	2.94
144 mM	BD	2.74	3.34	3.57	3.86	3.38
Average Across Methods
No Foliar spray	-	1.59	1.94	2.35	2.72	2.15 b
Foliar P	-	2.47	2.97	3.30	3.58	3.08 a
-	BC	1.86	2.25	2.67	2.95	2.43 b
-	BD	2.20	2.67	2.99	3.35	2.80 a
Year I	-	1.97	2.37	2.74	3.08	2.54
Year II	-	2.09	2.55	2.92	3.22	2.70
Mean		2.03 d	2.46 c	2.83 b	3.15 a

BC and BD indicate broadcast application and band application, respectively. Means with different letters in each column are significantly different (p = 0.05).