黄蜀葵“3414”肥料试验效应研究

Effects of “3414” Formula Fertilization on Abelmoschus manihot

目的:探究适宜宜兴产区黄蜀葵生长发育的大量元素(N、P、K)施肥配比及不同施肥处理对黄蜀葵鲜花产量与药材质量的影响。方法:采用"3414"施肥方案设计,统计鲜花产量;采用高效液相色谱法测定黄蜀葵花中指标性成分含量;浓H2SO4-H2O2消解,以连续流动分析仪测全N,钒钼黄比色法测全P,火焰分光光度法测K。结论:适宜黄蜀葵生长发育的施肥配比应为N(N2P1K1)处理:尿素97.8 kg·hm-2,过磷酸钙187.5 kg·hm-2,氯化钾37.5 kg·hm-2。

Objective： To explore suitable elements （N, P, K）fertilization ratio for Abelmoschus manihot growth in YiXing area and the effects of different fertilization treatments on yield and quality of A. manihot flowers. Methods： Using ＂3414＂ fertilizer scheme to statistic yield of flowers, the index components were determined by HPLC method for the determination of A. manihot. Using H2SO4-H2O2 to digest samples and analyzing total contents of N with CFA（ Continuous Flow Analyzer）, measuring totalp with method of vanadium molybdenum yellow colorimetry and K measured by flame spectrophotometry. Conclusion ： The suitable fertilizer ratio for the growth and development of A. manihot should be treatment N （N2P1K1 ）and added to the test chemical fertilizer are urea 97.8 kg＂ hm-2, superphosphate 187.5 kg.hm-2, potassium chloride 37.5 kg·hm-2.