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1984～1989年在河北昌黎、抚宁、青龙、秦皇岛市郊区的潮土、褐土、棕壤上,进行了盆栽、保护地、露地等不同栽培条件下,叶面喷施钛对番茄的影响的研究.通过对番茄种子萌发、幼苗和根系生长、果实产量和品质改善等方面测定,证实了钛可增加番茄的生理活性,有利植株生长和结实,明确了番茄施钛的技术组合.现简报如下:1.钛对番茄植株生长的作用 不同浓度的钛溶液(钛与Vc螯合物)浸泡番茄种子对胚根生长有明显促进作用.结果表明,以10～20ppm钛溶液的效果最佳,经钛溶液浸泡后,胚根长度比对照增加48～49%;施用10～20ppm的钛溶液可使幼苗株高增加24～28%,叶展增加47～51%,并使幼苗主根加粗,根的长度和总根量均有明显增加.
From 1984 to 1989, the effect of foliar application of Ti on tomato was studied under different cultivation conditions such as potting, protection and open field in Chao soil, cinnamon soil and brown soil in the suburbs of Changli, Funing, Qinglong and Qinhuangdao of Hebei province .Through the determination of tomato seed germination, seedling and root growth, fruit yield and quality improvement, it was confirmed that titanium can increase the physiological activity of tomato and promote the growth and fruiting of tomato plants. The results are as follows: 1. The effect of titanium on the growth of tomato plants The soaking of tomato seeds with different concentrations of titanium solution (titanium and Vc chelate) significantly promoted the radicle growth.The results showed that 10 ~ 20ppm titanium solution had the best effect, After soaking in titanium solution, the radicle length increased by 48-49% compared with the control; application of 10-20ppm titanium solution increased seedling plant height by 24-28% and leaf expansion by 47-51% Root length and total root volume both increased significantly.