添加有机酸钾对卷烟焦油量等的影响

通过向烟草中加入不同种类、不同浓度的有机酸钾，探讨其对卷烟焦油量、烟气中烟碱含量、抽吸口数、烟支静燃速率、卷烟总粒相物（ＴＰＭ）中钾转移率的影响，并作回归分析。研究结果表明，所加的有机酸钾能够降低焦油量，且在一定范围内添加钾盐种类及添加量与焦油量具有密切的相关性，对其他诸项也有一定的影响。在卷烟中加入有机酸钾对人体是安全的。

不同有机酸钾对小白菜幼苗生长的影响

以小白菜(Brassicarapassp.chinensis)为供试作物,采用LED光照循环水培装置,研究3种有机酸钾对小白菜幼苗生长的影响,以期为小白菜苗期钾素管理以及均苯四甲酸二酐生产排放物的农业利用提供理论依据。供试钾盐分别为硫酸钾(PS)、甲酸钾(OS1)、乙酸钾(OS2)、均苯四甲酸钾(OS3),以不含钾盐处理为空白对照(CK),钾素浓度设置为1g/L(以K_(2)O计),处理时间为12d。结果表明,PS、OS1、OS2处理显著提高小白菜幼苗地上部鲜重和干重,OS3处理对其影响不显著,其中PS处理地上部鲜重最大;而OS1、OS2处理地上部干重最大,较CK分别提高64.3%、63.5%,较PS处理提高24.3%、23.7%。PS、OS1、OS2处理亦显著提高小白菜幼苗根鲜重、干重及根系活力,其中OS1处理根鲜重、根系活力最大,而PS处理根干重最大。OS1处理对小白菜幼苗鲜重根冠比的促进作用最大,而PS处理对其干重根冠比的提升效应最强。以地上部干重为评价标准,与硫酸钾相比,甲酸钾、乙酸钾对小白菜幼苗生长的促进效应最大,均苯四甲酸钾对其影响最小。

控释肥温室无土栽培对烤烟钾素和有机酸含量的影响

以自然资源"桐油"为控释材料(从油桐果实中提取),生产控释肥料,研究"控释肥温室无土栽培对烤烟钾素和有机酸含量的影响"。结果表明:成熟期,施桐油控释复合肥最大叶面积为1145cm2,株高为80cm,施普通复合肥最大叶面积为994cm2,株高为74cm,叶面积相差151cm2,株高相差6cm;施控释复合肥比施普通复合肥上部叶片钾素含量高出0.1%、中部叶片高出0.08%、下部叶片高出0.08%;最大叶片有机酸增加2.431μg·g-1。结论:通过温室无土栽培试验证明,控释复合肥可以提高烤烟品质。图1,表3,参14。

有机酸-钾、有机酸-钾镁对烤烟烟叶钾含量及产质量的影响

通过田间试验,考察了施用有机酸-钾肥(F-k)、有机酸-钾镁肥(F-kMg)对烤烟生长、烟叶含钾量及产质量的影响。结果表明,施用有机酸-钾肥增加烤烟株高、最大叶面积、茎径、节距和叶片数,促进烤烟干物质的积累;F-k、F-kMg处理烤烟的上、中、下部叶的钾含量均高于纯化肥处理,其中F-k处理烤烟下部叶的含钾量、F-kMg处理烤烟的中、下部叶钾含量极显著高于纯化肥处理;施用有机酸-钾肥的烤烟烟叶的均价、产值均显著高于纯化肥处理;施用有机酸-钾镁肥可以显著提高烤烟烟叶的产量、均价及产值,同时可以改善烟叶主要化学成分的协调性及提高中上等烟比例。

棉浆黑液生产有机钾肥

棉短绒KOH绿色蒸煮产生的黑液,经酸中和后生产有机酸钾肥,分子小、易吸收、功效多、肥效高,可提高作物品质、增产增收。

Release of Soil Nonexchangeable K by Organic Acids

The amounts of soil nonexchangeable K extracted with 0.01 mL/ L oxalic acid and citric acid solutions and that with boiling 1 mL/ L HNO3 for ten minutes were remarkably significantly correlated with each other, and the amount extracted with the oxalic acid solution was higher than that with the citric acid solution. The soil nonexchangeable K release was comprised of two first-order kinetic processes. The faster one was ascribed to the interlayer K in outer sphere, while the slower one to that in inner sphere. The rate constants of the soil nonexchageable K were significantly correlated with the amounts of nonexchangeable K extracted with boiling ImL/ L HNO3 for ten minutes. Study on the fitness of different kinetic equations indicated that the first-order, parabolic diffusion and zero-order equations could all describe the release of soil nonexchangeable K. well, but Elovich equation was not suitable to describe it.