Abstract:
The tip burn of Chinese cabbage is a physiological disease of the calcium deficiency, In the northern China the Chinese cabbage production areas are damaged seriously day by day from 1970. The focal point of this research worK is to probe into the economic and effective control method with interior leaf spray calciferous salt solution, The interior leaf is sprayed with 0,7% CaCl2·2H20+50PPm NAA at beginning of bearing fruit, It has been showed that effective control has reached over 80% for 8 years conti-experiment,Using the routine analysis method and 45 Ca trace experiment, it has been demonstrated that NAA can promote obviously calcium absorbing and transporting, and has provided theoretical evidence to improve the control method of the tip burn of Chinese cabbage.
Key words:
Tip burn of Chinese cabbage,
Spraying calciferous salt solution for interior leaf
An Zhixin, Sun Deling, Wen Fengying, Lu Yuping, Ju Peihua, Su Youmei. A Study on the Occurrence and Control of the Tip Burn of Chinese Cabbage[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1990, 5(1): 78-84. doi: 10.3321/j.issn:1000-7091.1990.01.015.