赤泥不同施用量对镉污染稻田水稻光合特性及产量的影响  

Effect of Different Amounts of Red Mud on Photosynthetic Characteristics and Yield of Rice in Cd Polluted Soil

作　　者：田杰[1] 罗琳[1] 范美蓉[1,2] 廖育林[1,3] 魏建宏[1] 刘艳[1] 

机构地区：[1]湖南农业大学,湖南长沙410128 [2]长沙环境保护职业技术学院 [3]湖南省土壤肥料研究所

出　　处：《现代农业科技》2011年第11期271-273,共3页Modern Agricultural Science and Technology

基　　金：国家自然科学基金项目(50874046);湖南教育厅科技项目(08A032)

摘　　要：通过盆栽试验研究了赤泥不同施用量对镉污染稻田水稻光合特性及产量的影响。结果表明:赤泥施用量为50 g/盆时水稻产量达到最高,其主要作用是促进了水稻有效穗形成,提高了千粒重、结实率和每盆粒重等产量相关性状。同时得出:利用赤泥修复酸性土壤镉污染能改善稻田土壤生态环境,可实现水稻增产,但赤泥施用量要考虑水稻生长特性和栽培环境,适量施入。Pot experiments were conducted to study the effect of different amounts of red mud on photosynthetic characteristics and yield of rice in Cd polluted soil.The results showed that rice reached the highest yield as application of red mud up to 50 g/pot.The main cause of yield promotion by red mud was that red mud is favor to form the rice effective ear and improve yield-related traits including panicle number per plant,seed setting rate and 1 000-grain weight.Meanwhile,it could be concluded that it was feasible for remediation of acidic soil contaminated by Cd using red mud to improve soil ecological environment,make the rice grow better,but the fittest usage of red mud should be considered growth characteristics and planting environment of rice.

关 键 词：赤泥 施用量 镉污染 水稻 光合特性 产量 

分 类 号：S141.6[农业科学—肥料学] S511[农业科学—农业基础科学]