摘要
通过盆栽试验研究了烤烟单施化肥（ Ｉ） ，化肥＋ 芝麻饼肥（ Ｉ Ｉ） 和化肥＋ 腐植酸（ Ｉ Ｉ Ｉ） 对其生长过程中土壤营养状况的影响结果表明：各处理烟草在生长后期根区土壤ｐ Ｈ 值普遍下降，处理 Ｉ Ｉ和处理 Ｉ Ｉ Ｉ 能够加强这种下降趋势；烤烟对 Ｎ 肥的大量吸收期是在移栽后４０ ～６０ ｄ（ 旺长期） ，由于饼肥的缓效性，使得此期处理 Ｉ Ｉ Ｎ 素供应稍低于处理 Ｉ和处理 Ｉ Ｉ Ｉ，但这种差异随烟草的生长发育，到现蕾期已不明显现蕾到圆顶这段时间内，处理 Ｉ Ｉ和处理 Ｉ Ｉ Ｉ供 Ｎ 能力高于处理 Ｉ烤烟对 Ｐ 素的吸收主要在旺长期内，而施入腐植酸后则一直持续到圆顶期；各个处理对烟株生长过程中土壤速效 Ｋ
Pot experiment was conducted to study the effects of applying different types of fertilizers on soil nutrition during development of flue cured tobacco.The results showed:the soil pH was declining during the later stage of tabacco development,and the humic acid or cake fertilizer could enhance the tendency;soil nitrongen was absorbed concentrating on the 40 60 days after transplanting.The treatment of cake fertilizer+chemical fertilizer would make soil nitrogen insufficient during the early stage of tobacco that is unfavorable to the growth after transplanting,while the treatment of humic acid+chemical fertilizer had not only the rapid action as well as the durability of manure.This supplied tobacco with an equilibrium and proper nutrition;soil phosphorus was absorbed concentrating on the rapid growth period,while the treatment of humic acid+chemical fertilizer could last to the round top period;each treatment had no obvious effects on soil potassium.
出处
《河南农业大学学报》
CAS
CSCD
1999年第3期235-237,241,共4页
Journal of Henan Agricultural University
基金
国家烟草专卖局重点资助
关键词
烤烟
生长过程
饼肥
腐植酸
化肥
土壤营养
flue cured tobacco
development
acke fertilizer
humic acid
chemical fertilizer
soil nutrition
