摘要
试验研究了不同饼肥施用比例对烤烟钾积累以及烟叶含钾量的变化规律,为生产中合理施用发酵饼肥提供理论依据。本试验设在肇州县永胜乡,采用田间小区试验设计,3个处理,分别为当地常规施肥处理,50%发酵饼肥与50%无机化肥混合,100%施用发酵饼肥,所有处理氮磷钾施用量分别为52.50,52.50,105.00 kg.hm-2,3次重复。结果表明:3～11周根系钾积累呈现出增加的变化,后期降低,3个处理之间无显著差异;茎内钾积累规律与根系相同,50%饼肥处理积累量最高,达到了51.57 kg.hm-2;下部叶钾积累呈现出一直升高的变化,收获时3个处理之间无显著差异;中上部叶100%饼肥处理钾积累量最高,分别达到41.97和42.95 kg.hm-2。综合分析认为,发酵饼肥施用比例在50%～100%之间不会显著影响烤烟钾积累的基本规律。
In this trial,flue-cured tobacco potassium accumulation and changes of flue-cured tobacco leaf potassium content were studied with different proportion of application fermented soybean cake to provide a theoretical basis for its rational application of fermented soybean cake in production,the test was designed with random block in the field of Yongsheng township of Zhaozhou county,three treatments were applied with the pure inorganic fertilizer,50 % of the fermented soybean cake and 50 % inorganic fertilizer application,100 % fermented soybean cake.In all treatments,the application amounts of NPK were 52.50,52.50 and 105.00 kg·hm^-2,respectively,and the test was repeated 3 times.The results showed that root potassium accumulation increased in 3-11 weeks and later reduced,and 3 treatments had no significant difference.The potassium accumulation in stem was the same as that in root and the accumulation reached 51.57 kg·hm^-2 with 50 % fermented soybean cake treatment;lower leaves potassium accumulation indicated the increase all the time and three treatments had no significant difference in harvest;the potassium accumulation of the middle leaves and upper leaves with 100 % fermented soybean cake treatment was the highest,which reached 41.79 and 42.95 kg·hm^-2,respectively.Comprehensive analysis indicated that the proportion of fermented soybean cake applied at 50 %-100 % did not significantly affect the potassium accumulation.
出处
《西南农业学报》
CSCD
北大核心
2012年第4期1334-1337,共4页
Southwest China Journal of Agricultural Sciences
基金
黑龙江省烟草公司资助项目"烤烟重茬肥开发科技攻关项目"(HN200814)
关键词
定向发酵饼肥
烤烟
钾积累
钾含量
Fermented soybean cake
Tobacco
Potassium accumulation
Potassium content
