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硫酸锌加入Uran①(9.5％)比单独使用硫酸锌能提高薄壳山核桃[Carya illinoensis(wang)K.Koch]叶部锌的浓度,Uran加入硝酸锌比加入硫酸锌更有效。用硫酸锌喷雾时,常用锌浓度是860ppm,而Uran加入硝酸锌时,锌的浓度可以降低到108～216ppm。用最低浓度的硝酸锌(108ppm的锌)+Uran,比使用通常浓度的硫酸锌。其产量和收益还要高。在硷性土壤中应用锌对植物几乎无效,而植物容易从酸性土壤中吸收锌。在成熟的叶子上喷2400ppm的硫酸锌,大约只有0.1％被吸收,因而往往没有相应的生长和产量。在结合阳离子使用时,尿素促进了锌的吸收,尿素趋向于松驰由多变的酯、醚和角质高分子之间的二醚键构成的角质膜。有机离子、无机离子以及未分解的高分子的渗透取决于电荷的种类、可吸收性及分子半径。这个研究采用不同浓度的硫酸锌和硝酸锌做为锌源,结合不同的辅佐剂喷雾的方法,试图提高薄壳山核桃叶子对锌的吸收量。
The addition of zinc sulfate to Uran① (9.5%) increased the concentration of zinc in the leaves of Carya illinoensis (K. koch) compared to zinc sulfate alone, and the addition of zinc nitrate to Uran was more effective than the addition of zinc sulfate. When zinc sulfate is sprayed, the usual zinc concentration is 860 ppm, while the addition of Uran to zinc nitrate reduces the zinc concentration to 108-216 ppm. The lowest concentration of zinc nitrate (108 ppm of zinc) + Uran was used compared to the usual concentration of zinc sulfate. Its output and earnings are still higher. The use of zinc in alkaline soils is almost ineffective for plants, while plants absorb zinc readily from acid soils. Spraying 2400 ppm of zinc sulphate on mature leaves is only about 0.1% absorbed and therefore often has no corresponding growth and yield. Urea promotes the absorption of zinc when used in conjunction with cations, and urea tends to relax the cuticle consisting of diether bonds between the varied ester, ether and keratin. The infiltration of organic, inorganic, and undissociated polymers depends on the type of charge, absorbability, and molecular radius. This study used different concentrations of zinc sulfate and zinc nitrate as the zinc source, combined with different auxiliary adjuvant spray method, trying to improve the absorption of thin-walled pecan leaf zinc.