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The Effects of Different Fertilizer on Nitrate Content of Swamp Cabbage
Author(s): 
Pages: 181-182,185
Year: Issue:  6
Journal: JOURNAL OF AGRICULTURAL MECHANIZATION RESEARCH

Keyword:  农业基础科学无土栽培试验空心菜硝酸盐有机肥;
Abstract: 以空心菜为试验材料,在肥料中N、P、K含量相同的情况下,采用有机肥逐步代替化学肥料作肥源,研究了不同肥源对空心菜生长及硝酸盐含量的影响,并对水培生产中硝酸盐含量的日变化做了研究.结果表明:在基质栽培中,纯有机肥作肥源的空心菜硝酸盐含量最低,水培DFT方式栽培的空心菜硝酸盐含量最高;在基质栽培中,有机肥与化学肥料1:1的肥源条件下空心菜产量最高,同时硝酸盐含量达到安全要求.
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