期刊论文

Influences of Sod Culture on the Physical and Chemical Characteristics of Soil in Hilly Pyrus pyrifolia Orchard of Eastern Hunan

中文

湖北农业科学

0439-8114

2011

50

8

1593-1595

10.14088/j.cnki.issn0439-8114.2011.08.041

国家科技部农业科技成果转化资金项目（2008GB2D200219）； 湖南省科技计划项目（2009CK4017）；

本校为第一机构

为给丘陵果园生草栽培种植模式提供理论依据,在湖南省浏阳市对丘陵砂梨（Pyrus pyrifoliaNakai）园生草栽培区和清耕区（对照）的土壤理化性质进行了对比研究。结果表明,生草栽培在旱季可显著提高0～35 cm土层土壤的含水量,蓄水保墒效果明显;春季可提高30 cm处土层地温,夏季可降低地温2℃左右,同时使土壤容重降低、总孔隙度显著提高;与清耕区相比,生草栽培区0～20 cm土层的有机质、全氮、全磷、全钾含量有所增长,速效磷、速效钾的含量也显著高于清耕区,但速效氮含量有所下降,比清耕区降低了4.34%。

A sod culture experiment was carried out in hilly pear（Pyrus pyrifolia Nakai） orchard in Liuyang city of Hunan province to investigate the physical and chemical characteristics of soil between the areas of soils treated with sod culture management and tillage management（CK） in order to provide theoretical basis for sod culture in hilly pear orchard.The results showed that sod culture could increase water storage of 0～35 cm deep soils and soil moisture in pear orchard during the dry season.It not only increased the temperature of 30 cm deep...