黄河故道区域不同种植模式及秸秆还田方式对土壤的改良效果

刘莹, 李洁, 赵凌霄, 李春喜, 姜丽娜, 张黛静, 马建辉

The Effects of Different Planting Patterns and Straw Returning to Field on Soil Improvement in the Yellow River Course Region

Liu Ying, Li Jie, Zhao Lingxiao, Li Chunxi, Jiang Lina, Zhang Daijing, Ma Jianhui

表1 不同种植模式下土壤化学性质

Table 1 Soil chemical properties under different cropping patterns

土层 Soil depth (cm) 处理 Treatment 有机质 Organic matter (g/kg) 全氮 Total N (g/kg) 全磷 Total P (g/kg) 全钾 Total K (g/kg) 碱解氮 Alkaline hydrolysis N (mg/kg) 速效磷 Available P (mg/kg) 速效钾 Available K (mg/kg) pH 0~10 WM 32.28a 1.11a 0.65a 1.78a 103.00a 9.67d 108.90b 7.66b WMWP 31.29a 0.89b 0.62ab 1.78a 75.00b 18.30c 106.93b 7.95a P 20.46c 0.70d 0.57b 1.76a 63.67c 36.87b 133.10a 7.95a WP 24.99b 0.78c 0.61ab 1.71b 61.67c 43.63a 139.93a 8.00a 10~20 WM 33.79a 1.16a 0.59a 1.79a 106.67a 10.23d 97.87c 7.73c WMWP 32.76a 0.85b 0.55b 1.76b 75.00b 18.87c 118.57bc 7.89b P 21.10b 0.66d 0.53c 1.73c 57.00c 25.13b 135.3ab 7.90b WP 23.16b 0.73c 0.54bc 1.72c 57.33c 28.07a 152.47a 8.04a 20~30 WM 33.16a 1.03a 0.54a 1.77a 95.00a 15.27bc 70.53d 7.94c WMWP 30.64b 0.81b 0.51b 1.76a 67.67b 13.60c 90.33c 8.13ab P 19.40c 0.50c 0.35d 1.72b 60.00b 16.50ab 120.83a 8.18a WP 20.37c 0.49c 0.45c 1.73b 40.67c 18.10a 105.60b 8.12ab 30~40 WM 24.26a 0.45a 0.35a 1.72a 41.30a 7.00a 62.30a 8.28a WMWP 22.95b 0.41b 0.30c 1.70b 30.00b 8.03a 59.90a 8.28a P 18.89d 0.32c 0.25d 1.67bc 32.67b 4.30b 56.97a 8.21a WP 20.60c 0.31c 0.33b 1.66c 30.67b 5.13b 63.03a 8.19a 40~50 WM 24.19a 0.41a 0.31a 1.69b 49.00a 6.33a 61.10a 8.29a WMWP 22.75a 0.39a 0.25c 1.72a 26.33bc 6.60a 44.03b 8.32a P 21.87a 0.31b 0.29b 1.58c 29.33b 2.50b 31.00c 8.25ab WP 22.71a 0.33b 0.32a 1.68b 23.74c 2.50b 43.74b 8.20b