期刊论文

中文

生态环境学报

1674-5906

2009

18

4

1522-1526

10.16258/j.cnki.1674-5906.2009.04.053

国家“十一五”科技支撑计划资助项目（2006BAD25B08）；

本校为第一机构

通过田间试验,研究了免耕(T1)、翻耕(T2)、免耕+秸秆覆盖(T3)、翻耕+秸秆覆盖(T4)、翻耕+秸秆深埋(T5)5种耕作方式下土壤理化状况及玉米(Zea mays L)产量.结果表明,使用了秸秆的耕作方式(T3、T4、T5)有利于改良土壤的理化性状、提高玉米产量;翻耕与免耕相比,翻耕能改良土壤物理性状、提高土壤有机质和氮素含量、提高玉米产量,但翻耕土壤中有效磷和速效钾的含量比免耕土壤中低.T5对降低耕层土壤容重、增加土壤孔隙度、提高土壤含水量、改善土壤结构、提高有机质和氮素含量及提高玉米产量有最好的效果;T3对提高耕层土壤有效磷和速效钾含量最明显,对改善土壤结构也表现出较好的效果.因此,丘陵区红壤...

Soil physi-chemical characters and maize yield were investigated under field experiments in Shashi county of Hunan province with 5 cultivation treatments which were： no-plough （T1）, plough（T2）, no-plough and covered with straw（T3）, plough and covered with straw（T4）, plough and bury straw（T5）. The results showed that the cultivations with straw including T3, T4 and T5 improved soil physi-chemical properties and increased maize yield. Compared with no-plough treatment, plough not only caused the improvement of soil physical characters,...