摘要
本文探讨了以NO_3^-、N0_3^-+NH_4^+(1:1)、NH_4^+作为氮源对叶菜类体内NO_3^-、NO_2^-和Vc含量的影响。试验表明:给叶菜类施肥,以硝态氮肥和铵态氮肥混合施用为好,只施硝态氮肥或铵态氮肥都有各自的弊端。
Effect of nitrogen source given as NO_3^-,NO_3^-+NH_4^-(1:1),NH_4^- on leaf vegetable NO_3^-,NO_2^- and Vc contents was discussed in this pa- per.The results of experiments showed that when nitrogen manuring of leaf vegetable,nitrate fertilizers mixed with ammonium fertilizers was adequate. Applying only with nitrate fertilizers or with ammonium fertilizers had dr- awbacks repectively.
