燃煤烟气脱硫废弃物对宁夏银川北部中度盐碱地及油葵生长发育的影响

采用田间试验方法,采用3种施用量(3.0、、4.5、6.0 kg/m2),研究了燃煤烟气脱硫废弃物改良宁夏银川北部中度盐碱地的效果及其对油葵生长发育的影响.结果表明,在一定的农艺措施下,与对照相比,不同施用量的脱硫物,均可降低土壤的全盐含量和pH值,提高油葵的出苗率,增加油葵的生物量和产量.当施入量为3.0 kg/m2时,改良效果最为明显,全盐和pH值分别下降了21.4%和5%;出苗率、鲜重、干重和产量分别增加了67.6%、53.9%、77.8%和72.3%.

Effect of Desulphurized Waste on Improving the Middle Saline-Alkaline Soil and on Growing and Development Oil Sunflower in Northern of Yinchuan of Ningxia Province

The field experiment with 3 application levels of desulphurized waste of flue gas(3.0,4.5,6.0 kg/m2) showed that,under the some agricultural measure,comparing to contrast,the different application levels of desulphurized waste could all decrease the soil salt content and pH value,increase the rate of seedling,the fresh and dry weight and yield of oil sunflower.Adding 3.0 kg/m2 desulphurized waste had a best amended effect as that the soil salt content and pH value were decreased by 21.4% and 5%,respectively,the rate of seedling,fresh weight,dry weight and yield per 666.7 m2 were increased by 67.6%,53.9%,77.8%,72.3%,respectively.