The key period of element absorption was plantlet to visible bud stage. Potassium was more important than Nitrogen and Phosphorus for development of bulb.
植株营养吸收的关键时期为幼苗至现蕾期，鳞茎发育对钾营养的需求大于氮和磷。
Objective: To guide production of Saffron better, the effects of planting density and quantity of nitrogen fertilizer on bulb yield were investigated.
前言：目的：探索种植密度和氮肥用量对西红花球茎产量的影响，更好地指导西红花生产。
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