Effects of Topdressing Nutrient Fertilizer on Flowering and Fruiting of Lingwuchangzao for Protected Cultivation
[Objective]The effects of topdressing nutrient fertilizer on flowering and fruit setting of Lingwuchangzao in facil-ity cultivation were studied.[Methods]Taking the facility cultivation of Lingwuchangzao plants as the research object,the effects of topdressing with compound microbial fertilizer(concentration of 0,5 000 mg/L,4 000 mg/L,3 330 mg/L)and source plant cell 1 fertilizer(0,2 500 mg/L,1 670 mg/L,1 250 mg/L)on its flowering,fruit setting rate,fruit drop rate and fruit drop rate were determined.[Results]When the length of jujube hanging reached 15～20 cm,applying a concentration of 5 000 mg/L of compound microbial fertilizer and a concentration of 2 500 mg/L of plant cell 1,the number of number of flowers,buds,and flowering rate of Lingwuchangzao were higher than those of other treatments.Among them,the flowering rate in-creased by 23.87%compared to the control.The number and rate of fruit setting were also higher than other treatments,with a 17.48%increase in fruit setting rate compared to the control.Under the treatment of a concentration of 5 000 mg/L of com-pound microbial fertilizer and 2 500 mg/L of plant cell NO1.fertilizer,the hanging fruit rate of Lingwuchangzao increased by 22.78%compared to the control,and the fruit drop rate decreased by 35.97%compared to the control.[Conclusion]The ap-plication of Zhongzhi compound microbial fertilizer 5 000 mg/L and Yuansu Plant Cell No.1 2 500 mg/L can promote flowering and fruit setting of Lingwuchangzao in facility cultivation,which can be popularized and applied in the production of Ling-wuChangzao jujube in protected cultivation.
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