不同施肥年限下作物产量及土壤碳氮库容对增施有机物料的响应
盖霞普1,刘宏斌1,杨波1,王洪媛1(
),翟丽梅1,雷秋良1,武淑霞1,任天志2
),翟丽梅1,雷秋良1,武淑霞1,任天志2
Responses of Crop Yields, Soil Carbon and Nitrogen Stocks to Additional Application of Organic Materials in Different Fertilization Years
GAI XiaPu1,LIU HongBin1,YANG Bo1,WANG HongYuan1(),ZHAI LiMei1,LEI QiuLiang1,WU ShuXia1,REN TianZhi2
),ZHAI LiMei1,LEI QiuLiang1,WU ShuXia1,REN TianZhi2
图1. 增施有机肥及秸秆还田对作物产量和氮肥偏生产力的影响
每个柱状图上的不同小写（连续施肥11年后）和大写（连续施肥27年后）字母表示差异显著
Fig. 1. Response of crop yields and partial factor productivity of nitrogen (PFPN) to additional application of organic manure and straw incorporation
Different lowercase (11 years fertilization) or uppercase (27 years fertilization) letters above each bar indicate significant differences, P<0.05
