| Abstract: In order to solve the problem that it was diffi cult for root zone fertilization to satisfy the normal growth need of strawberry in substrate cultivation, the effects of special leaf fertilizer on calcium defi ciency, yield and quality of strawberry were studied under the substrate cultivation mode in suburb of Beijing. The results showed that spraying special leaf fertilizer of strawberry could effectively supplement calcium nutrition, signifi cantly reduce the incidence of calcium defi ciency symptoms, while the total output, fruit number per plant and fruit weight of strawberry signifi cantly increased by 17.6%, 7.9% and 8.9%, respectively. At the same time, the sugar content and the sugar-acid ratio of each strawberry crop could improve signifi cantly, so as to improve the fl avor and quality of strawberry. It was a technological way to achieve high yield, high quality, safety and effi cient production of strawberry. |