不同秸秆还田方式对土壤碳氮含量及高油玉米产量的影响

被引：17

作者：

刘玲 ^{[1
]}

刘振 ^{[2
]}

杨贵运 ^{[1
]}

李晓莎 ^{[1
]}

韩惠芳 ^{[1
]}

宁堂原 ^{[1
]}

李增嘉 ^{[1
]}

商艳丽 ^{[3
]}

马俊然 ^{[3
]}

机构：

[1] 山东农业大学农学院,作物生物学国家重点实验室,土肥资源高效利用国家工程实验室

[2] 山东农业大学林学院

[3] 平原县农业局

来源：

水土保持学报 | 2014年 / 28卷 / 05期

关键词：

秸秆还田; 土壤碳; 土壤氮; 高油玉米产量;

D O I：

10.13870/j.cnki.stbcxb.2014.05.033

中图分类号：

S141.4 [堆肥、沤肥];

学科分类号：

摘要：

设置4种秸秆还田方式(沼液还田、有机肥还田、秸秆粉碎还田和常规施肥),以常规玉米郑单958为对照,分析不同秸秆还田方式下高油玉米5580田土壤碳氮含量及产量的变化。结果表明,4种秸秆还田方式下高油玉米5580田土壤有机碳、全氮及微生物碳氮含量均大于常规玉米郑单958田;土壤有机碳、全氮和微生物碳氮含量的变化与玉米生育进度保持一致,均在吐丝期达到最大值。4种秸秆还田方式对土壤有机碳、全氮和微生物碳氮含量贡献为秸秆粉碎还田>有机肥还田>沼液还田>常规施肥,而对它们间关系及玉米产量的影响则为有机肥还田>秸秆粉碎还田>沼液还田>常规施肥。结果表明,种植用于饲用途径高油玉米利于土壤碳氮的积累,秸秆经过不同处理还田后对玉米均有增产效果,尤其有机肥还田增产效果显著(高油5580增产9.25%,郑单958增产27.43%)。可见,土壤碳氮及产量的变化不仅受秸秆还田方式的影响,玉米用途对其也具有一定的作用。

引用

页码：187 / 192

页数：6

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