生姜对氮磷钾缺乏的反应

Response of lack of nitrogen, phosphorus, potassium to ginger

试验研究了N、P、K缺乏对生姜生长的影响以及缺素症的形态表现。结果表明,N、P、K对生姜生长的影响极大。其中以K处理影响最为严重,至旺盛生长期以后,地上部鲜重持续降低,根茎鲜重却有先增加后降低再增加的特殊现象。其次为N、P处理。在生长后期,N、P、K各处理的根茎鲜重只有CK的40 77%、46 65%和25 25%。

The effect of lack of nitrogen, phosphorus and potassium on ginger was studied in this experiment. The result indicated that the deficiency of nitrogen, phosphorus and potassium respectively had a great influence on the growth of ginger. Especially the potassium treatment (lack of K), after the leaf & stem vigorous growth stage, the fresh weight of over-ground part degreased gradually, but the fresh weight of rhizome decreased to some extent after increased and increased again during the later rhizome growth stage. At the later rhizome growth stage, compared to the CK treatment, the fresh weight of lack of N, P, K treatment was only 40.77%, 46.65% and 25.25% respectively. The morphologic symptom of lack of N, P, K was also described in the experiment.