论文部分内容阅读
在设施栽培条件下,研究不同秸秆还田方式对土壤盐分空间运移的影响,通过测定分析不同秸秆还田方式处理对不同深度土壤全盐、电导率、硝酸盐、pH值,比较不同处理盐分指标的差异,并对不同盐分指标进行相关性分析。结果表明:2 000kg/667m2行下秸秆反应堆处理之间差异不明显,但与无秸秆处理相比,不同行下秸秆反应堆处理能够降低0~10cm土层土壤全盐20.16%~21.75%,降低10~20cm土层土壤全盐13.25%~24.40%;能够降低0~10cm土壤硝酸盐25.00%~25.80%,降低20~30cm土层土壤硝酸盐22.41%~24.75%;土壤全盐与土壤硝酸盐极显著正相关,土壤全盐与土壤pH值极显著负相关。
The effects of different straw returning methods on the spatial movement of soil salinity were studied under the condition of planting cultivation. The effects of different straw returning methods on soil salinity, conductivity, nitrate, pH, Indicators of differences, and different salt index correlation analysis. The results showed that there was no significant difference between the treatments of 2 000 kg / 667 m 2 straw reactor, but compared with no straw treatment, the treatment of straw reactor could reduce 20.16% ~ 21.75% of the total soil salt in 0 ~ 10 cm soil layer and 10 20.25 cm soil layer can reduce 13.25% -24.40% of total salt in 20 cm soil layer, 25.00% -25.80% nitrate in 0-10 cm soil layer and 22.41% -24.75% nitrate layer in 20-30 cm soil layer, Significantly positive correlation between soil total salt and soil pH was significantly negatively correlated.