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2. 增施有机肥及秸秆还田对土壤有机碳库容及其变化量剖面分布的影响
同一图的不同小写字母代表差异显著（P<0.05）,重复数=3。下同。“a”表示连续施肥11年后土壤碳库;“b”表示连续施肥27年后土壤碳库;“c”表示有机碳库变化量（有机碳库b-有机碳库a）
Fig. 2. Responses of soil organic carbon (SOC) stocks and variations to additional application of organic manure and straw incorporation
Different letters indicate significant difference for the results in the same column (P<0.05). Three replicates in the study. The same as below. “a” represent SOC stocks after 11 years fertilizations; “b” represent SOC stocks after 27 years fertilizations; “c” represent variations of SOC stocks (SOC stocks b-a)
