Effect of different nitrogen fertilizer on the nitrite and nitrate content in sweet potato leaf
LUO De-tao
NIE Cheng-rong
Abstract：Effect of different nitrogen fertilizer on the nitrite and nitrate content in sweet potato leaf was studied with pot experiment. The results showed that different nitrogen fertilizers and the amount of feeding on the broad leaves of sweet potato leaf, boosted production of nitrate and nitrite, but had limited impact on leaf protein, which in the fifteenth days after fertilization, the nitrite content dealt with N3, A2, A3 was significan t ly different from control group, especially increased by 700%with A2;nitrogen treatment significantly promoted the formation of nitrate, the difference was great. With the increase of nitrate, the nitrite content also increased, but the content of vitamin C decreased , a large number of vitamin C inhibited nitrate generated into nitrite. This research results provide references for promoting quality of sweet potato and production of pollution-free-vegetables, and provide scientific basis for application of ferbilization to sweet potato.
Keywords：nitratenitritesweet potatonutrition quality
Publication Date：2015-11-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 5-9 )