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研究结果表明,随底肥条施腐殖酸或喷施生物钾肥均能促进烟株生长,提高烟叶产量。前者的作用主要在烟株生育的前中期,后者主要在中后期,以腐殖酸+化学高聚物的效果最好。增产幅度以生物钾最大,腐殖酸较小,而腐殖酸+化学高聚物介于二者之间;上等烟比例及均价,以腐殖酸+化学高聚物最高,生物钾次之,腐殖酸第3;烟叶含钾量及烟叶吸钾量以腐殖酸+化学高聚物处理最高,施腐殖酸处理次之,施生物钾的作用不明显。
The results showed that applying humic acid or spraying bio-potash fertilizer with basal fertilizer could promote tobacco plant growth and increase tobacco yield. The role of the former mainly in the tobacco before and after childbirth, the latter mainly in the late, with humic acid + chemical polymers the best. The rate of increase was highest in biological potassium and humic acid was smaller, while humic acid + chemical polymer was in between. The ratio and average price of superior tobacco were the highest with humic acid + chemical polymer, Followed by humic acid No. 3; leaf potassium content and potassium uptake to humus + chemical polymer treatment highest, followed by humic acid treatment, application of biological potassium is not obvious.