内蒙古灌溉马铃薯氮肥减施依据及措施
陈杨,秦永林,于静,贾立国,樊明寿

Basis and Measures for Reducing Nitrogen Fertilizer on Irrigated Potato in Inner Mongolia
Yang Chen,Yonglin Qin,Jing Yu,Liguo Jia,Mingshou Fan
表3 有机肥替代化肥对马铃薯产量的影响
Table 3 Effects of organic fertilizer replacing chemical fertilizer on potato yield
处理
Treatment
氮肥被替代比例(%)
Replacement ratio of nitrogen fertilizer
氮肥(kg/hm2)
Nitrogen fertilizer
产量(t/hm2)
Yield
增产率(%)
Yield increase
1 0 300 40.0c -
2 30 300 42.2b 5.5
3 60 300 45.4a 13.5
4 100 300 39.4c -1.5