施肥方法对小麦专用控释氮肥肥效的影响

刘苹, 谭德水, 徐钰, 林海涛, 李彦, 宋效宗, 沈玉文, 刘兆辉

Effects of Fertilization Methods of Self-Made Wheat-Specific Controlled-Release Nitrogen Fertilizer on Fertilizer Efficiencies

Ping LIU, DeShui TAN, Yu XU, HaiTao LIN, Yan LI, XiaoZong SONG, YuWen SHEN, ZhaoHui LIU

表5 施肥方法对土壤氮素表观平衡的影响

Table 5 Effect of fertilization methods on apparent nitrogen balance

试验地点 Test point 处理 Treatment 氮素投入 Nitrogen input (kg·hm-2) 作物氮输出 Crop N output (kg·hm-2) 土壤氮素表观平衡 Soil apparent N balance (kg·hm-2) 茌平 Chiping CK1 210 156.3a 53.7a CK2 210 141.4a 68.6a CRF1 210 146.2a 63.8a CRF2 210 145.6a 64.4a CRF3 210 147.8a 62.2a 泰安 Taian CK1 225 291.3a -66.3b CK2 225 277.1ab -52.1ab CRF1 225 273.8ab -48.8ab CRF2 225 309.7a -84.7b CRF3 225 247.4b -22.4a 桓台 Huantai CK0 0 44.4c -44.4c CK1 180 146.0a 34.0b CK2 180 123.6b 56.4a CRF1 180 127.7ab 52.3ab CRF2 180 132.9ab 47.1ab CRF3 180 134.1ab 45.9ab