Factor Rain intensity (mm/h)	Straw mulching		No straw mulching
	Runoff loss	Sediment loss	Runoff loss	Sediment loss
	Zn (mg/ha)
1.06	48.74 ± 3.71^bc	465.67 ± 24.17^c	115.17 ± 24.39^d	1266.80 ± 1180.08^b
1.27	11.81 ± 1.40^c	58.16 ± 4.95^c	147.98 ± 24.85^d	690.61 ± 48.24 ^b
1.35	53.61 ± 28.86^b	167.56 ± 10.38^c	226.25 ± 27.34^c	922.22 ± 262.37^b
1.59	24.15 ± 5.15^bc	183.02 ± 8.43^c	94.20 ± 18.63^d	1137.25 ± 85.02^b
2.10	14.51 ± 1.08^c	194.37 ± 16.72^c	109.21 ± 14.18^d	1838.94 ± 111.02^b
4.65	60.90 ± 18.77^b	1323.06 ± 787.23^b	133.52 ± 4.34^d	2770.96 ± 514.79^b
5.48	109.45 ± 20.19^a	620.89 ± 20.06^bc	350.40 ± 58.89^a	1723.79 ± 216.01^b
6.04	62.32 ± 2.50^b	298.98 ± 24.11^c	301.48 ± 39.15^ab	1865.87 ± 260.87^b
10.54	120.30 ± 23.80^a	2060.42 ± 556.19^a	268.25 ± 12.65^bc	9804.07 ± 3156.91^a
	Cu (mg/ha)
1.06	12.71 ± 1.16^bc	378.89 ± 8.80^bc	6.28 ± 4.04^b	1092.33 ± 1062.18^bc
1.27	2.75 ± 0.33^cd	48.37 ± 5.14^d	13.40 ± 12.29^b	590.63 ± 84.11^c
1.35	2.86 ± 0.15^cd	141.27 ± 9.59^cd	10.05 ± 3.31^b	785.65 ± 230.55^c
1.59	3.14 ± 3.57^cd	126.77 ± 27.17^cd	13.09 ± 1.82^b	905.56 ± 57.09^c
2.10	1.12 ± 0.53^d	157.49 ± 14.22^cd	18.95 ± 1.32^b	1615.99 ± 166.92^bc
4.65	12.33 ± 11.13^bc	990.10 ± 379.62^a	10.48 ± 6.55^b	2259.57 ± 371.05^b
5.48	67.10 ± 3.07^a	490.89 ± 8.28^b	12.71 ± 8.93^b	1287.93 ± 81.34^bc
6.04	4.47 ± 2.11^cd	241.94 ± 24.73^bcd	45.96 ± 3.55^a	1648.33 ± 269.59^bc
10.54	20.58 ± 3.45^b	1049.79 ± 47.47^a	39.30 ± 13.15^a	4508.10 ± 1099.13^a
	Mo (mg/ha)
1.06	2.33 ± 0.58^a	17.28 ± 3.47^c	2.92 ± 2.26^ab	44.80 ± 42.23^b
1.27	0.41 ± 0.03^b	1.85 ± 0.10^d	2.72 ± 0.25^ab	25.89 ± 4.44^b
1.35	0.39 ± 0.003^b	5.27 ± 0.08^cd	0.88 ± 0.38^b	30.44 ± 8.49^b
1.59	0.58 ± 0.22^b	13.81 ± 10.00^cd	0.91 ± 0.16^b	40.55 ± 2.23^b
2.10	0.33 ± 0.01^b	5.82 ± 0.17^cd	1.38 ± 0.12^b	71.74 ± 9.98^b
4.65	1.14 ± 0.33^b	31.41 ± 11.2^b	1.26 ± 0.20^b	91.84 ± 4.67^b
5.48	2.78 ± 0.07^a	16.79 ± 0.59^c	3.86 ± 0.78^a	46.57 ± 3.69^b
6.04	0.86 ± 0.13^b	9.00 ± 1.34^cd	3.80 ± 0.34^a	68.71 ± 4.31^b
10.54	2.25 ± 0.71^a	68.28 ± 5.86^a	3.62 ± 1.12^a	346.85 ± 74.92^a