摘要
为β-环糊精缓控释肥在青稞种植中的应用提供依据,以纯尿素和β-环糊精-尿素包合物缓控释肥作基肥进行青稞盆栽试验,对比分析不同肥料种类青稞种子萌发和幼苗生理指标变化。结果表明,施用浓度均为1.33g/kg时,β-环糊精缓控释肥比纯尿素种子萌芽率提高21.6%,出苗率提高25.0%,幼苗高度提高8.20cm,叶片电导率降低33.23%,叶绿素含量升高0.284mg/g,可溶性蛋白含量升高6.94mg/g。纯尿素对青稞种子萌发和幼苗的生长具有抑制作用,β-环糊精-尿素包合物可一定程度上屏蔽尿素对青稞种子萌发和幼苗生长的毒害。
To provide references for applyingβ-cyclodextrin controlled release fertilizer in plantation of hulless barley,apot experiment was conducted to explore the effects of urea andβ-cyclodextrin-urea controlled release fertilizer on seed germination and seedling physiological index of hulless barley.Comparing with common urea the germination rate,emergence rate increased by 21.6% and 25.0%,respectively,the seedling height increased by 8.20 cm,relative conductivity of leaves reduced by 33.23%,total chlorophyll content increased by 0.284mg/g,soluble protein content increased by 6.94mg/g.Urea inhibited seed germination and seedling growth,whileβ-cyclodextrin controlled release fertilizer could shielding the toxic effects of urea.
出处
《贵州农业科学》
CAS
2016年第5期28-31,共4页
Guizhou Agricultural Sciences
基金
四川省教育厅项目"甘孜州特种粮食(青稞)产业化发展研究"(15ZB0328)
关键词
Β-环糊精
尿素
青稞
种子萌发
生理指标
β-cyclodextrin
urea
hulless barley
seed germination
physiological index
