摘要： 采用田间小区试验方法,研究了氮、磷、钾肥对丹参根系生长及养分含量的影响。结果表明,氮、磷、钾肥能够促进丹参根系对氮、磷、钾的吸收,提高其含量,并且随着施用量的增加而提高,在N,P2O5,K2O的施用量分别为225,180,225 kg/hm2时,根的氮、磷、钾含量达到最高值;当施入N,P2O5和K2O分别为225,120,150 kg/hm2时,丹参根干质量、根长及根条数达到最高值,根的直径最适宜,此后随着磷钾肥施入量增加,根干质量及根长、根条数反而下降,根直径增加。所以氮、磷、钾合理配合施用能够提高丹参根的养分含量、根干质量、根长、根数及根直径。
关键词:
丹参,
氮、磷、钾肥,
根系生长,
养分含量
Abstract: The art icle discussed the effects of N, P and K fertilizer on the Salvia miltiorrhiza root system growth and the nutrient content. This research was studied by the field plot experiment. The result showed that N, P and K fertilizer were advantage to enhance the nutrient absorption of Salvia miltiorrhiza root and increased N, P and K content. And with the amount of fertilizer increasing, the N, P and K content of root also enhanced. When the amount of N, P2O5, and K2O were 225, 180, 225 kgharespectively,the nutrition content of root reached the maximum. When the amount N, P and K were 225, 180, 150 kg/ ha respectively, the dry weight, length and the number of root reached maximum. After that, if the amount of N, P and K fertilizer increased again, the dry weight, the length and the number of root decreased,but the root diameter increased. So,N, P and K were in harmony with each other, it could enhanced the nutrition content, dry weight, the length, the number and diameter.
Key words:
Salvia miltiorrhiza,
N, P,K fertilizer,
Root system growth,
Nutrition content
中图分类号:
翟彩霞, 温春秀, 王凯辉, 张彦才, 王丽英, 李巧云, 陈丽莉. 氮、磷、钾肥对丹参根系生长及养分含量的影响[J]. 华北农学报, 2008, 23(S1): 220-223. doi: 10.7668/hbnxb.2008.S1.052.
ZHAI Cai-xia, WEN Chun-xiu, WANG Kai-hui, ZHANG Yan-cai, WANG Li-ying, LI Qiao-yun, CHEN Li-li. Effects of N,P and K Fertilizer on Roots Growth and Nutrition Content of Salvia miltiorrhiza[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S1): 220-223. doi: 10.7668/hbnxb.2008.S1.052.