摘要
为了探索土壤重金属净化新技术,研究以白沙土+锯末灰基质为材料,在起垄栽培条件下进行了水稻重金属净化试验,考察重金属元素、电动净化、土壤清残剂D1和叶面清残剂L3对水稻经济性状的影响。结果表明:有效穗、穗粒数、实粒数、生物产量、经济系数的最大影响因素均为重金属锌,空壳数的最大影响因素为清残剂L3,千粒重的最大影响因素为重金属铜,经济产量的最大影响因素为重金属镉;适当浓度的镉、铜处理对水稻生长有一定的促进作用;铅、锌、铬处理对水稻经济性状产生负面影响;电动净化与清残剂处理降低了土壤的有效养分含量;锌处理极显著降低水稻的有效穗数而导致减产。
In order to explore the new soil heavy metal purification technology, rice heavy metal purification experiment was carried out under the condition of ridge cultivation using peisei ＋ sawdust substrate to investigate the effects of heavy metal elements, electric purification, soil scavenger D1 and L3 on rice economic characters. The results showed that the most influential factors of effective panicles, grains per panicle, number of grains, biological yield and economic coefficient were all heavy metal zinc. The largest influencing factor of empty shell number was L3, and the largest influencing factor of 1000-grain weight was heavy metal copper. The largest influencing factor of economic output is heavy metal cadmium. The appropriate concentration of cadmium and copper treatment has certain effect on rice growth. Lead, zinc and chromium treatment had negative effects on rice economic characters. Electric purification and residual treatment reduced the effective nutrient content of soil. Lead, zinc and cadmium directly affect the effective spike count of rice.
作者
赵志坚
李先
王芊
彭选明
李宏告
吴丽君
李青峰
ZHAO Zhi-jian;LI Xian;WANG Qian;PENG Xuan-ming;LI Hong-gao;WU Li-jun;LI Qing-feng(Hunan Academy of Sciences Institute of Cereals and Oils in Shaoyang City, Shaoyang 422000, PRC;Hunan Institute of Nuclear Agricultural Science and Space Breeding,Changsha 410125, PRC;Hunan Horticulture Research Institute, Changsha 410125, PRC)
出处
《湖南农业科学》
2018年第4期40-43,51,共5页
Hunan Agricultural Sciences
基金
湖南农业科技创新资金创新联盟子项目(nky20170202003)
关键词
水稻
经济性状
重金属
清残剂
电动净化
rice
economic characteristics
heavy metals
residues
electric purifcation
