【摘要】 试验结果表明:日光温室番茄定植后,叶面喷施3次云大-1201500倍液效果最好。其中,株高和茎粗的净增长量分别比对照增加17.0%和35.0%;座果率、单果重和前期产量分别提高14.7%、23.2%和24.6%;叶片光合速率提高15.8%;果实可溶性固形物和Vc含量分别提高26.7%和24.7%;滴定酸含量降低13.9%。更多还原

【Abstract】 Yunda-120 solution was sprayed on the leaves oftomatoplanted permanentlyin greenhouse. The results showed that, amongall ofthetreatments, 1 500 times of Yunda-120 solution sprayed for three times was the best treatment. Compared with the contrast, the net increments ofplant height and stemdiameter were increased by17.0 % and 35.0 % respectively, the ratiooffruit-setting, the weight ofper fruit and yield at theearlier stage were raised by 14.7 %, 23.2 % and 24.6 % respectively, the photosynthetic rate was increased by 15.8 %, the content of solublestarch and vitamin Coffruit were raised by26.7 % and 24.7 % respectively, and the content oftitration acid was decreased by13.9 %.更多还原