紫花苜蓿施用腐殖酸肥效应的研究  

Effects of Super Humic Acid Chloride Fertilization on Alfalfa

作　　者：张冬梅[1] 张丽娟[1] 霍秀娟[2] 王俊慧[1] 杨恒山[1] 

机构地区：[1]内蒙古民族大学农学院,内蒙古通辽028042 [2]通辽金山种业公司,内蒙古通辽028000

出　　处：《内蒙古民族大学学报（自然科学版）》2010年第4期390-393,共4页Journal of Inner Mongolia Minzu University：Natural Sciences

摘　　要：以生长第4年和第8年紫花苜蓿为对象,研究了不同腐殖酸肥水平对紫苜蓿的生长及各茬草产量的影响.结果表明,施用腐殖酸肥后紫花苜蓿的株高、一级分枝数、节间数、节间距、茎叶比以及干草产量均有所增加,其中生长第8年苜蓿的增效更为明显;生长第8年苜蓿施用腐殖酸肥后各茬株高明显高于CK,且差异达到显著水平;两个生长年限苜蓿的各刈割茬次2000kg/hm2施腐殖酸肥处理一级分枝数均高于其对照,且差异均达到显著水平;生长第4年、第8年紫花苜蓿施用腐殖酸肥后第一茬及全年干草产量显著高于CK,且第一茬差异达到了极显著水平;生长第8年苜蓿施用腐殖酸肥第二、第三茬干草产量与CK间差异均达到显著水平.Using four-year and eight-year alfalfa as experimental materials,effects of two levels of humic acid fertilizations on growth and hay yield of alfalfa were studied.The results showed that： humic acid fertilization improved the plant height,node number,distances between leaves,the number of first branch,stem and leaf and hay yeild,especially for eight-year alfalfa;the plant height of seven-year alfalfa humic acid fertilization were higher than that CK and differences between the two treatments came to significant level;the number of first branch of 2000kg/hm2 humic acid fertilization treatment of eight-year alfalfa were higher than that CK and differences between the two treatments came to significant level;hay yields of the first stubble and the whole year of four-year and eight-year humic acid fertilization were higher than that CK and the first stubble differences between the two treatments came to significant level;hay yields of the second

关 键 词：紫花苜蓿 腐质酸 干草产量 

分 类 号：S141[农业科学—肥料学]