Effects of Foliar Application of Silicon Fertilizer and Calcium Fertilizer on Tomato Production and Fruit Cracking Prevention in Greenhouse in Beijing
Fruit cracking is common in the late stage of spring tomato cultivation in the suburbs of Beijing.In order to screen out dif-ferent fertilizer application methods to reduce the occurrence of tomato fruit cracking,this paper studied the effects of spraying silicon fertilizer and calcium fertilizer on tomato growth,yield and prevention of fruit cracking.The results showed that the treatment of spray-ing 2 mmol·L-1 sodium silicate aqueous solution+30 g·L-1 amino acid calcium solution(T4)not only promoted tomato production,but also significantly increased plant height and stem diameter compared with the control.The effect of increasing tomato yield and preventing fruit cracking was significant.The yield was 22.39%higher than that of the control,and the tomato fruit cracking rate was 4.58%lower than that of the control.The soluble solids content of tomato treated with T4 was significantly increased,the hardness was improved,and the calcium content of fruit was significantly increased.In conclusion,the treatment of spraying 2 mmol·L-1 sodium sil-icate aqueous solution+30 g·L-1 concentration of amino acid calcium not only promoted tomato growth,but also increased tomato yield,improved tomato quality,increased fruit hardness and reduced fruit cracking rate.It could be used as an alternative way to prevent cracking of spring tomatoes in Beijing.
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