| 翻压绿肥对京郊沙质潮土腐殖质结合形态及土壤物理性状的影响 |
| |
| 引用本文： | 熊顺贵,成春彦.翻压绿肥对京郊沙质潮土腐殖质结合形态及土壤物理性状的影响[J].中国农业大学学报,1991(3):58-61. |
| |
| 作者姓名： | 熊顺贵 成春彦 |
| |
| 作者单位： | 北京农业大学;北京市农科院; |
| |
| 摘 要： | 采用长期定位的方法,研究了翻压绿肥(田菁)后对京郊沙质潮土腐殖质结合形态及土壤物理性质的影响。结果表明:①连续翻压绿肥,可增加土壤有机物质的数量,促进土壤有机质的累积和腐殖质各组分的变化。②土壤中三种不同形态腐殖质含量顺序为紧结态>联结态>游离态。③连续长期翻压绿肥可使土壤容重减少,孔隙总量和毛管孔隙增加,土壤团粒结构有所改善,土壤中的大、中、小孔隙比例趋于合理,土壤保水性能明显增强。
|
| 关 键 词： | 腐殖质形态 绿肥 容重 田间持水量 |
EFFECT OF PLOUGHING IN GREEN MANURE ON THE HUMUS FORMS AND PHYSICAL PROPERTIES OF SANDY LIGHT MEADOW SOILS |
| |
| Xiong Shungui.EFFECT OF PLOUGHING IN GREEN MANURE ON THE HUMUS FORMS AND PHYSICAL PROPERTIES OF SANDY LIGHT MEADOW SOILS[J].Journal of China Agricultural University,1991(3):58-61. |
| |
| Authors: | Xiong Shungui |
| |
| Institution: | Xiong Shungui (Beijing Agricultural University),Cheng Chunyan (Beijing Academy of Agrcultaral Sciences) |
| |
| Abstract: | A long-term local experiment was conducted to study on the effect of ploughing in green manure on the humus forms and physical properties of a sandy li- ght meadow soils.The obtained results show that continuing ploughing in green ma- nure benefits the accumulation of soil organic matter and promotes the transformation of humic substances.The humic acids and humic fractions increased 2.2% and 7.1% separately,and fulvie acid fraction decreased 2.7% in comparison with the check. And HA/FAratios were found rob... |
| |
| Keywords: | humus forms green manure bulk density field capacity |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国农业大学学报》浏览原始摘要信息 |
| 点击此处可从《中国农业大学学报》下载免费的PDF全文 |
