摘要
研究结果表明，饼肥和腐殖酸与化肥配合施用能促进烤烟根系的生长发育，增大根系体积和干重，增强根系活力，扩大根系总吸收面积和活跃吸收面积。根系体积生长率和根系干重生长率呈现旺长期和圆顶期２次生长高峰的趋势。从根系发育的整个过程看，饼肥和腐殖酸与化肥配合施用符合烤烟生长的需肥规律。
Studies wnere carried out on the effects of different kinds of fertilizer on development and activity of roots in flue-cured tobacco (Nicotian tabacum.L).The results showead that cake and humic acid used together with chemical fertilizer could promote the growth and development of bobacco roots,increase the root volume and the dry matter werght,enhance the root activity,broaden the total absorbing area and activate the absorbing area of the roots.The generation rate of volume and dry matter weight in roots pecked at vigorous growth stage and round top stage.During the root devolopment,cake and humic acid used together with chemical fertlizer conformed to the laws of the roots′ requirement for fertilizer.
出处
《河南农业大学学报》
CAS
CSCD
1998年第S1期97-101,共5页
Journal of Henan Agricultural University
基金
国家烟草专卖局资助
关键词
烤烟
饼肥
腐殖酸
根系发育
根系活力
flue-cured tobaceo
cake
humic acid
root development
root activity
