摘要
以洋葱品种"红贝特"为试材,设4个施氮水平处理N0、N1、N_2、N3,以CK为对照,测定了膜下滴灌洋葱的植株性状、鳞茎性状、品质和产量等指标,以探讨冀西北坝上地区地膜覆盖洋葱适宜的滴灌氮量,给当地洋葱施肥提供合理施肥依据。结果表明:处理N1的植株性状、鳞茎性状均显著高于CK,产量较CK提高12.26%;处理N1可溶性蛋白质、可溶性固形物、可溶性糖和维生素C含量较CK分别增加27.13%、8.16%、19.15%和60.71%,而硝酸盐含量CK较N1提高85.67%;在该试验条件下,洋葱获得最佳效益时的氮肥施用量和时期分别为苗期追N 31.5kg·hm^(-2),茎叶生长期追N 47.25kg·hm^(-2),鳞茎膨大初期追N 47.25kg·hm^(-2),鳞茎膨大中期追N 31.5kg·hm^(-2),并在整个生长时期配施P_2O_575kg·hm^(-2),配施K_2O 255kg·hm^(-2)。
In order to explore the suitable drip nitrogen fertilizer of onion（Allium cepaL.）named‘Hongbeite＇in plastic film mulching in Bashang region in the northwest of Hebei Province,and provide a reasonable foundation for the local onion fertilization,the treatments including N0,N1,N2,N3 were set and CK as control.These indexes inculding plant characteristics,bulb traits,quality and yield,etc were determined.The results showed that the plant characteristics,bulb traits of treatment N1 were significantly higher than CK.The yield of treatment N1 was increased 12.26%compared with CK.At the same time,the content of soluble protein,soluble solid,soluble sugar and VC of treatment N1 was 27.13%,8.16%,19.15% and 60.71% higher than CK,respectively,but its nitrate content was 85.67%lower than CK.In this experiment,at the seedling stage,N at 31.5kg·hm^-2,at the stem and leaf growth stage,N at 47.25kg·hm^-2,at the bulb expand early stage,N at 47.25kg·hm^-2,at the bulb expand middle stage,N at 31.5kg·hm^-2,at the same time,P2O5 at 75kg·hm^-2 and K2O at 255kg·hm^-2 in whole growth stage were applied,respectively,which could obtain the best benefit.
出处
《北方园艺》
CAS
北大核心
2017年第7期1-6,共6页
Northern Horticulture
基金
河北省现代农业产业技术体系蔬菜产业创新团队建设资助项目(HBCT2013050208)
河北北方学院优秀学术创新团队建设资助项目(CXTD1307)
河北北方学院蔬菜学重点学科建设资助项目(2016017)
关键词
冀西北坝上地区
洋葱
氮肥
生长时期
产量
品质
Bashang region in the Northwest of Hebei Province
onion
nitrogen fertilizer
growth stage
yield
quality
