南板蓝的营养特性及栽培技术

The nutrition characteristic and planting technique for Baphicanthus Cusia Bremek

通过对南板蓝BaphicanthusCusiaBremek进行田间种植试验,研究其营养特性及栽培技术。结果表明,南板蓝植株养分含量N>K>P,南板蓝不同器官养分含量叶>植株>茎>根,在不同时期,随着南板蓝生长期的增长植株内养分含量呈下降趋势;不同施肥对南板蓝养分含量影响明显;种植密度越稀南板蓝植株N、P素含量越高。N、P、K都显著影响南板蓝产量,其增产效应N>P>K,N、P、K肥用量适宜组合为N素27～33kg·667m-2,P2O5为12kg·667m-2,K2O为10.5～12 0kg·667m-2,最佳种植密度为50cm×50cm。南板蓝的病害主要有霜霉病、根瘸病,虫害主要有菜青虫。

The nutrition characteristic and planting technique for Baphicanthus Cusia Bremek had been studied by the field plot experiment .The results showed that the nutrition contents of N,K,P in whole body and every organ were on a decrease trend, including leaves, stems and roots. In different periods, the nutrition content would decrease with the growing time in a year. Different fertilization would effect the nutrition content and output obviously, the optimum combination fertilization of N, P_2O_5 and K_2O was shown to be 27-33kg·667m^(-2), 12kg·667m^(-2) and 10.5-12.0(kg·667m^(-2)) respectively. The optimum planting density is the distance of 50cm per den.