Effects of Stubble Management on Soil Fertility and Crop Yield of Rainfed Area in Western Loess Plateau, China

Table 1

Soil chemical and physical properties at the start of experiment.

Depth (cm)	Bulk density (g cm^−3)	Organic matter (g kg^−1)	Total N (g kg^−1)	Total P (g kg^−1)	Olsen P (mg kg^−1)	Available K (mg kg ^−1)	pH
0–5	1.29	13.15	0.85	0.83	5.81	290.09	8.30
5–10	1.23	12.86	0.87	0.84	5.02	274.00	8.40
10–30	1.32	11.95	0.78	0.79	2.14	202.47	8.30