不同生物有机肥对贵州高海拔春马铃薯生长及土壤肥力的影响

张萌,芶久兰,魏全全,陈龙,何佳芳

Effects of Different Biological Organic Fertilizers on the Growth of Spring Potato and Soil Fertility at High Altitude Region in Guizhou Province

Meng Zhang,Jiulan Gou,Quanquan Wei,Long Chen,Jiafang He

表6 不同处理对耕层（0~20cm）土壤养分含量的影响

Table 6 Effects of different treatments on nutrient content of topsoil (0~20cm)

处理 Treatment pH 有机质(g/kg) Organic matter 全氮(g/kg) Total nitrogen 碱解氮(mg/kg) Alkali nitrogen 全磷(g/kg) Total phosphorus 有效磷(mg/kg) Available phosphorus 全钾(g/kg) Total potassium 速效钾(mg/kg) Available potassium T1 5.31a 36.89c 2.12b 116.16c 1.25a 52.65c 12.24a 57.0b T2 5.43a 70.59a 3.23a 141.41a 1.40a 58.40bc 12.28a 70.0ab T3 5.35a 58.70b 2.93a 140.24a 1.39a 73.00b 12.58a 71.0ab T4 5.43a 34.06c 2.96a 128.26b 1.29a 61.00bc 12.34a 63.0b T5 5.40a 64.50ab 3.13a 135.31ab 1.30a 88.70a 13.25a 72.0ab T6 5.47a 55.08b 3.08a 133.29ab 1.45a 60.30bc 12.80a 79.5a