Abstract

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Title:: Application of Slag Calcium Silicate Fertilizer in Chinese Cabbage Planting

Author(s):: WANG Xiaojun; GAO Hongsheng; ZHANG Lei; GU Xuejia; (Soil Environment and Plant Nutrition Key Laboratory of Heilongjiang Province/Institute of Soil Fertility and Environmental Resources,Heilongjiang Academy of Agricultural Sciences,Harbin,Heilongjiang 150086)

Abstract:: Steel slag silicon fertilizer was used as test material,the effects of applying silicon fertilizer on Chinese cabbage yield,disease resistance and soil available silicon content during Chinese cabbage planting were studied by field plot experiment and indoor analysis in order to provide reference for the application of calcium silicon fertilizer in Chinese cabbage.The results showed that the silicon fertilizer could effectively inhibit harmful bacteria in the soil,reduce the infection rate of downy mildew disease of the Chinese cabbage,reduce the downy mildew disease average by 3.48-7.54 percentage points,reduce the soft rot disease average by 2.65-6.13 percentage points.Silicon fertilizer can promote the growth of Chinese cabbage,increase the content of chlorophyll,improve the yield by 6.25%-8.01% under the continuous application of silicon calcium fertilizer,in the main growth period of Chinese cabbage，in soil，the content of available silicon treated by calcium silicate fertilizer treatment was significantly higher than that treated by CK,and the difference was significant.