宁夏大学学报（自然科学版）2011，Vol.32Issue(3)：288-292,5.DOI:64-1006/N.20110715.1645.006
脱硫废弃物改良盐碱地对水稻生长发育及土壤的影响
Effect of Desulphurization Waste on Rice Growing Development and Soil
摘要
Abstract
The effect of desulphurization waste on the rice growth development and the soil environment are studied when the different amounts of desulphurization waste are applied in the saline-alkali soils of Ningxia. The results show that when the saline-alkali soils are fertilized the different amounts of desulphurized waste, the growth development of rice are improved, rice leaf area are increased, rice biomass and yield are increased. The amount of the desulphurized waste + amendments is (2. 5+0. 5) t/666. 7 m2 and the irrigation water volume is 100 m3/666. 7 m2, which is the best experiment treatment to improve the saline-alkali soil. Compared with the controlling the rice leaf area index, dry weight and yield is increased 56. 4 % ,232. 9% and 259. 6% , respectively. The number of grains per head, the weight of one thousand grains and the length of rice's neck are obviously increased, the rice sterile grain rate is significantly decreased. After the rice field are used with desulphurized waste, the proportion of Naf + K+/Ca2+ + Mg2+ in soil are decreased. Therefore, it is concluded that exchangeable sodium ion in soil is easily replaced by calcium ion, the effect of sodium ion on the soil ecosystem and rice growth are declined owning to irrigation and the desulphurized waste during rice growth.关键词
脱硫废弃物/盐碱地/改良/水稻/生长发育Key words
desulphurized waste/ saline-alkali soil/ improvement/ rice/ growth and development分类
农业科技引用本文复制引用
陈永伟,马琨,胡景田,张丽..脱硫废弃物改良盐碱地对水稻生长发育及土壤的影响[J].宁夏大学学报（自然科学版）,2011,32(3):288-292,5.基金项目
国家科技支撑计划(河套地区盐碱地改良利用技术集成与示范)基金资助项目(2007BAC08B05) （河套地区盐碱地改良利用技术集成与示范）
