【摘要】 采用田间试验研究不同肥料组合对茎瘤芥(俗名榨菜)产量和硝酸盐含量的影响。结果表明:有机无机型专用肥〔166820(有机质)〕对茎瘤芥增产和降低其硝酸盐含量的作用最佳,其次为无机型专用肥 (1979);过磷酸钙对茎瘤芥增产效果优于磷酸一铵,但降低其硝酸盐含量不及磷酸一铵;硫酸钾的增产作用优于氯化钾,但氯化钾降低硝酸盐含量的效果较好;钙镁磷肥对其增产和降低硝酸盐含量的效果均差。更多还原

【Abstract】 The effects of different fertilizer combinations on the yields and their nitrate contents of tumorous stem mustard (preserved Sichuan pickls) were studied under field experiment. The results show that the organicinorganic specialty fertilizer 〔166820(organics) 〕is favorite to the yield increase and nitrate content decrease against tumorous stem mustard, and the inorganic fertilizer type Ⅱ(1979) follows. Single superphosphate(SSP) is better than monoammonium phosphate(MAP) in increasing the yield whilst poorer in decreasing its nitrate content; sulfate of potash (SOP) is better than muriate of potash (MOP) in increasing the yield while weaker in decreasing its nitrate content; and fused calcium magnesium phosphate(FCMP) shows little desired effects.更多还原