生物炭基保水剂对土壤水分及油菜生长的影响

发布时间：2019-07-02 20:05

【摘要】：为考察生物炭基保水剂对土壤及作物的作用效果,利用自制的生物炭基保水剂,采用铝盒法和盆栽法探讨了不同种类保水剂对土壤持水保水性能及油菜生长的影响。结果表明:施用生物炭基保水剂可以有效提高土壤的持水保水性能,提高油菜的地上生物量及水分利用效率;生物炭基保水剂B作用效果最优,与对照相比,土壤饱和含水率提高13.54%,土壤水分蒸发速率降低31.98%,油菜地上生物量增加30%~50.1%,土壤水分利用效率提高56.7%~110.9%,本研究可为低成本、高效保水剂的开发及应用提供参考。
[Abstract]:In order to investigate the effect of biological carbon based water retaining agent on soil and crops, the effects of different kinds of water retaining agent on soil water holding capacity and rape growth were studied by aluminum box method and pot planting method. The results showed that the application of biological carbon based water retaining agent could effectively improve the water holding and water retention performance of soil and improve the above ground biomass and water use efficiency of rape. Compared with the control, the saturated soil moisture content increased by 13.54%, the soil water evaporation rate decreased by 31.98%, the above-ground biomass of rapeseed increased by 30% 鈮，

本文编号：2509188