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| Effect of Silicon Fertilizer on Potato Growth and Development and Yield Quality |
| LIU Peng1，BU Wenxuan1，WANG Bin1，GU Shengyi2，FAN Mingshou1，SHI Biao3，JIA Liguo1* |
| （1Agricultural College，Inner Mongolia Agricultural University，Huhhot 010019，Inner Mongolia，China；2Russian Silicon Resources Co.，Ltd.，Shenyang 110000，Liaoning，China；3Baotou Rural Pastoral Area Management and Information Service Center，Baotou 014030，Inner Mongolia，China） |
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Abstract This paper took potato variety‘Kexin No.1’as test material，set up treatments of different silicon fertilizer application amount for 2 years experiment，and measured the dry matter accumulation，yield and quality indexes of various potato organs．The results showed that compared to no application of silicon
fertilizer contrast，the accumulation amount of dry matter in potato leaves and tubers was all significantly higher than that in applying silicon fertilizer treatment；and root shoot ratio showed a significant increasing trend along with the increase of silicon fertilizer application amount．In terms of potato yield and quality，all treatment of each silicon fertilizer application amount could increase the yield and commodity potato percentage．When silicon fertilizer application amount was 45 kg·hm-2，the 2 years average yield could increase 29.95% than that of the contrast，and commodity potato percentage increased by 5.5 percentage point；and a 2 years average yield could increase 57.01%，when silicon fertilizer application amount was 75 kg·hm-2 and commodity potato percentage increased by 8.8 percentage point．The tuber starch content showed a changing trend of increasing first then decreasing along with the increase of silicon fertilizer application amount．While，the reducing sugar content decreased significantly．In conclusion，when the silica fertilizer application amount was 75 kg·hm-2，the increasing effect on potato yield and commodity potato percentage was the most obvious．While，the related quality indexes of potato tubers were better，when the silicon fertilizer application amount was 45 kg·hm-2．
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Received: 12 August 2022
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