腐殖酸对植烟土壤理化性状影响的研究  

Effect of Humic Acid on Soil Physical and Chemical Properties in Tobacco Field

作　　者：叶协锋[1] 凌爱芬[2] 刘清华 郝伟宏[4] 李彦涛[4] 薛庆梅 刘国顺[1] 

机构地区：[1]河南农业大学国家烟草栽培生理生化研究基地,烟草行业栽培重点实验室,郑州450002 [2]凉山州烟草公司,四川西昌615000 [3]平顶山市烟草公司,河南平顶山467000 [4]郏县烟草公司,河南郏县467100

出　　处：《中国农业科技导报》2010年第6期120-125,共6页Journal of Agricultural Science and Technology

基　　金：河南省烟草专卖局重点科研项目(HYKJ200703)资助

摘　　要：2006-2007年在河南郏县进行田间试验,研究腐殖酸对植烟土壤物理和化学性状的影响。结果表明,施用腐殖酸可增强土壤的保水能力,尤其是增加旺长期以后的土壤含水量;降低土壤容重、提高土壤孔隙度。施用腐殖酸能提高当季土壤中碱解氮、速效磷、速效钾和有机质含量,但各处理碱解氮、有机质含量与对照并未达到显著水平。与单施化肥的处理相比,施用腐殖酸的处理能提高整个烟株生育期中土壤氮素的有效性;土壤中的速效磷含量高于对照,特别是团棵期土壤中的速效磷含量要比对照高5-20 mg/kg。施用腐殖酸后在烟株生长后期土壤仍然保持了较高的速效钾含量。以处理T2（750 kg/hm^2）效果最好。Field experiments were carried out to research the effect of Humic acid on soil physical and chemical properties in tobacco fields at Jiaxian County,He’nan Province in 2006-2007.The results showed that after humic acid was used,soil ability to maintain moisture increased,especially in fast growing period;soil bulk density decreased and soil degree of porosity increased.Application of humic acid can improve available nitrogen,available phosphorus,available potassium and organic matter content of the seasonal soil,but there was no significant difference in available nitrogen and organic matter content between the treatments and the control.Compared with fertilizer treatment,application humic acid could increase soil nitrogen validity in the whole growth period;soil available phosphorus content was higher than the control,especially in rosette stage it was 5-20 mg/kg more than the control.The content of soil available potassium kept a high content level at latter stage of tobacco growth.The effect of treatment T2（750 kg/hm^2） was the best

关 键 词：烤烟 腐殖酸 土壤理化性状 

分 类 号：S572[农业科学—烟草工业] S154[农业科学—作物学]