农业环境科学学报2012，Vol.31Issue(4)：764-767,4.
酸性和中性水田土壤施用硅肥的效应研究Ⅱ.对水稻吸收硅素及产量的影响
Effect of Silicon Fertilizer in Acid and Neutral Paddy Field Soils Ⅱ .Effect on Silicon Uptake and Yield of Rice
摘要
Abstract
Pot experiments were conducted to study the effects of silicon fertilizer on silicon uptake during the growth stages of rice and yield of rice in acid and neutral paddy field soils in northern China to investigate the mechanisms of different types of silicon fertilizer on improving soil silicon supplying ability, plant silicon nutrition and rice yield. The results showed that silicon content in rice plants decreased greatly from jointing to heading stage, and then increased slowly. Silicon fertilizer could obviously improve the silicon content of rice plants. Silicon content in the treatments with blast furnace slag or mixture of blast furnace slag and glucose, was significantly higher than those in the control and other treatments. However the silicon content of rice plants was not increased in the treatment with sodium metasilicate in neutral paddy field soil. In the acidic paddy field soil, yield of rice increased obviously by applying silicon fertilizer. The mixture of blast furnace slag with glucose increased the yield by 16.99%.There was significant positive linear correlation between silicon content and rice yield. The rice yield was not increased with the application of silicon fertilizer in neutral paddy field soil. In conclusion, the fertilizer of mixture of blast furnace slag and glucose could improve silicon supplying capacity in the soil and increase the yield of rice, especially in acid paddy soil.关键词
水田土壤/土壤溶液/硅/水稻/产量/高炉渣Key words
paddy field soil/ soil solution/ silicon/ rice/ yield/ blast furnace slag分类
农业科技引用本文复制引用
杨丹,张玉龙,杨东伟,刘鸣达..酸性和中性水田土壤施用硅肥的效应研究Ⅱ.对水稻吸收硅素及产量的影响[J].农业环境科学学报,2012,31(4):764-767,4.基金项目
国家自然科学基金(40971175) （40971175）
辽宁省自然科学基金(20062114) （20062114）
