【作者】 刘云超；

【导师】 李跃进；

【作者基本信息】 内蒙古农业大学 ， 土壤学， 2008， 硕士

【摘要】 本研究运用室内模拟试验的方法,系统的研究了燃煤烟气脱硫副产物这种改良剂对海流园区碱土和学校农场土壤(非碱化土壤)的pH值,速效氮,速效磷,速效钾以及铁,铜、锌、猛、钼等五种微量营养元素的有效化的影响。确定碱土改良剂最适施用量,研究结果如下:1.改良剂对海流碱土的改良效果较为明显。施用改良剂后,土壤pH值显著降低,对营养元素中的碱解氮、速效磷及微量元素铁、铜、锌、锰的有效化影响呈现显著的正效应;水溶性有机质和有效钼的影响呈现显著的负效应;对碱土速效钾的影响呈现负效应,但没有达到显著水平。2.在非碱化土壤中施用改良剂后,土壤pH值虽然降低,但没有达到显著水平;对营养元素中的碱解氮及微量元素铁、锰的有效化影响呈现显著的正效应;水溶性有机质和有效钼的影响呈现显著的负效应。3.海流碱土施用改良剂达到1500～2000kg/667m2,改良时间30天以后,改良效果显著。更多还原

【Abstract】 The paper studies on the effects of the desulphurization byproduct in Coal-fired Flue Gas on the content of pH, available nitrogen, phosphorus, potassium, Fe, Cu, Zn, Mn in the HaiLiu Park area alkaline soil and school farm soil (non-alkaline soil)with the indoor simulation test method. Finally, determined the optimal application rate of Solonetzs amendment, the results are as follows:1. The effects of amendment on HaiLiu Park area alkaline soil were obvious. After applying amendment, soil pH value reduced obviously; the effects on alkali-hydrolyzable nitrogen, rapidly available phosphorus, Fe, Cu, Zn, Mn were positive and significant. The effects on dissolved organic matter and available molybdenum were negative and significant. Although the effects on rapidly available potassium were negative, it did not reach significant levels.2. In the application of amendment in non-alkali soil, although it lowers the soil pH value, the effects did not reach significant levels; the effective effects on alkali-hydrolyzable and Fe, Mn presented significant and positive; the effects on dissolved organic matter and available molybdenum were negative and significant. Solution Of organic matter and the impact of effective molybdenum show significant negative effects.3. Alkaline earth currents to the general application of conditioner when the application rate of amendment reached 1500 ~ 2000 kg/667m2, and the time was over 30 days, the improving effect was significant.更多还原