锌肥对日光温室西芹硝酸盐及营养品质研究

摘要

The effects of different Zn levels on the yield,quality and nitrate uptake of celery in the green house were studied.The results showed that the maximum yield of celery was reached at 30kg/hm2 zone of zinc sulfate.Meanwhile,the nitrate contents of the leaf and the petiole were reduced by 28.6% and 29.5%.Application of Zn fertilizer could increase contents of Vc.However,little influence was found on soluble sugar.%利用日光温室西芹不同锌水平的试验，研究了以氮、钾肥作基肥时，不同锌水平对西芹硝酸盐累积、营养品质及产量的影响。结果表明，当施用硫酸锌30kg/hm+2，西芹的产量达到最高，而硝态氮含量与CK相比，叶片和叶柄分别降低28.6%和29.5%，施用锌肥可以提高Vc的含量，对可溶性糖的影响不大。