Impact of Addition of FGDB as a Soil Amendment on Physical and Chemical Properties of an Alkali Soil and Crop Yield of Maize in Northern China Coastal Plain

Table 6

Soil texture of experimental plots (USDA classification).

Size fraction for depth interval	0–10 cm				10–20 cm
	Sand (%)	Silt (%)	Clay (%)	Increase over silt (silt 34.12%)	Sand (%)	Silt (%)	Clay (%)	Increase over silt (silt 31.23%)
2011
T0	8.51	34.12	57.37	0	4.11	31.23	64.66	0
TI	8.64	37.15	54.21	3.03	4.53	43.12	52.35	11.89
T2	8.53	38.44	53.03	4.32	4.62	45.64	49.74	14.41
T3	8.47	40.13	51.4	6.01	5.84	46.87	47.29	15.64
T4	8.54	41.62	49.84	7.5	6.12	48.45	45.43	17.22
2012
T0	8.53	36.34	55.13	2.22	4.33	36.23	59.44	5
TI	8.79	39.46	51.75	5.34	4.53	47.12	48.35	15.89
T2	8.83	39.64	51.53	5.52	5.32	49.64	45.04	18.41
T3	8.56	44.83	46.61	10.71	6.15	49.96	43.89	18.73
T4	8.69	44.78	46.53	10.66	6.89	51.46	41.65	20.23

Average of triplicate measurements.