土壤氧化还原电位

杂交水稻根际供氧对土壤氧化还原电位和产量的影响

Effects of Oxygen Supply in the Rhizosphere on Soil Eh and Hybrid Rice Yield

稻田土壤氧化还原电位

Soil redox potential of paddy field

以杂交稻组合Ⅱ优7954为材料，研究根际供氧对稻田土壤的氧化还原电位及水稻产量和物质生产的影响。

The effects of oxygen supply in the rhizosphere on the Eh ( oxidation reduction potential ) of soil and rice yield in planting troughs were studied , with the hybrid rice combination ⅱ You 7954 as the material .

污灌以后，随土壤含水量、氧化还原电位和pH值的变化，氨化作用、硝化作用和反硝化作用依次成为氮素转化的主要机制。

After irrigating , with the variation of moisture , oxygen and pH value , the ammonification , nitrification and de nitrification are successively the major causes of nitrogen trasformation in the soil .

一般认为，土壤淹水后，土壤氧化还原电位降低，提高了磷的有效性，促进了磷释放。

In general , the soil flooded will decrease the Eh , improve the availability and release of phosphorus .

土壤中铁、锰通过对土壤氧化还原电位及根膜形成的影响而影响甲烷的排放。

It has been found that the effects of soil Fe and Mn on soil methane emission were caused by affecting soil Eh and root plate .

2稻-鸭-鱼共栖生态系统中，土壤环境条件得到明显的改善，土壤氧化还原电位增加10.98mv，还原物质总量、活性还原物质总量分别降低1.46cmol/kg、1.25cmol/kg。

In rice-duck-fish complex ecosystem , the environmental of soil gets obvious improvement . Soil oxidation-reduction potential increased 10.98 mv , reduced material total amount , activation reduced material total amount reduced 1.46cmol/kg , 1.25cmol/kg respectively . 3 .

结果显示，淹水后土壤pH、总酚酸含量升高，总有机酸含量显著增加，而土壤的电导率、氧化还原电位和铵态氮含量则显著下降。

The results showed that pH value and phenolic acid content of soil were increased slightly while the organic acid concentration was increased significantly after flooding . However , EC value , Eh value and ammonium nitrogen content decreased significantly .