旱区有机肥替代氮肥对多年连作土壤理化性质和马铃薯品质的影响

胡新元, 柳永强, 谢奎忠, 孙小花, 罗爱花

Effects of Organic Fertilizer Replacing Nitrogen Fertilizer on Soil Physical Chemistry Properties and Potato Quality under Continuous Cropping in Arid Area

Hu Xinyuan, Liu Yongqiang, Xie Kuizhong, Sun Xiaohua, Luo Aihua

表2 有机肥替代氮肥对马铃薯连作土壤养分的影响

Table 2 Effects of organic fertilizer replacing nitrogen fertilizer on soil nutrient under continuous cropping of potato

处理 Treatment 碱解氮 Alkaline hydrolysis of nitrogen (mg/kg) 有效磷 Available phosphorus (mg/kg) 速效钾 Quick-acting potassium (mg/kg) 全氮 Total N (g/kg) 全磷 Total P (g/kg) 全钾 Total K (g/kg) CK 114.13±5.24a 22.20±3.13b 148.67±14.06b 0.95±0.13a 0.88±0.07a 21.77±3.31a NR15/C5 111.40±3.26ab 25.50±2.06b 161.00±9.56ab 0.91±0.08a 0.89±0.09a 20.77±2.23a NR30/C10 94.03±7.42b 31.63±3.22ab 216.00±8.01a 0.86±0.08b 0.92±0.08a 22.67±0.95a NR45/C15 79.17±3.58c 35.87±1.78ab 200.33±12.44a 0.86±0.16b 0.96±0.15a 21.36±4.27a NR60/C20 82.83±7.51c 43.63±1.66a 191.00±10.25a 0.72±0.20c 0.95±0.12a 23.80±2.81a