摘要
对传统耕法、宽窄行立茬交替休闲+条带深松、宽窄行立茬+秸秆粉碎还田+条带深松、宽窄行立茬+秸秆条带覆盖+条带深松、宽窄行立茬+全方位深松5个耕作模式下土壤呼吸速率进行研究。结果表明,少免耕模式与传统耕法相比土壤呼吸速率降低,宽窄行立高茬+秸秆粉碎还田+条带深松降低最为明显,降低了42.63%。相关分析表明,土壤呼吸速率与土壤温度存在显著线性关系。
The researching result of soil respiration showed that the rate of soil respiration of reduced tillage was slowest with comparison of CK,moreover,soil respiration of wide and narrow spacing rotation planting with high stubble＋ straw crashed＋ strap deep tillage,decreased of 42.63% under five treatments of conventional tillage（CK）,wide and narrow spacing rotation planting with high stubble＋ strap deep tillage,wide and narrow spacing rotation planting with high stubble＋ straw crashed＋ strap deep tillage,wide and narrow spacing rotation planting with high stubble＋ straw＋ strap deep tillage,wide and narrow spacing rotation planting with high stubble＋ deep tillage comprehensively.There was line-regression relationship between rate of soil respiration and soil temperature through analysis.
出处
《玉米科学》
CAS
CSCD
北大核心
2011年第2期105-108,113,共5页
Journal of Maize Sciences
基金
国家农业科技成果转化资金项目(2009GB2B100078)
吉林省科技发展计划项目(20096025)
关键词
玉米
秸秆还田
土壤呼吸速率
保护性耕作
Maize
Returning straw into field
Soil respiration
Conservation tillage
