Taking ‘Xintaimici'and ‘Jinyou 1 'as experimental cucumber cultivars,this paper studied the effects of watering purified humic acid( PHA) at different levels( 0,50,100,150,200 mg·L-1) on growth and nutrient absorption of cucumber seedlings under low nitrogen stress( 1 mmol·L-1NO3-) in sand culture pots. The results showed that,under low N condition,PHA could significantly increase the total root length,root surface area,root tip number and root volume of cucumber seedlings,and promote plant height,stem diam...
【基金】
国家现代农业产业技术体系建设专项(CARS-25)资助~~
【更新日期】
2016-09-14
【分类号】
S642.2
【正文快照】
本文由国家现代农业产业技术体系建设专项(CARS-25)资助This work was supported by Special Project of China Modern Agriculture TechnologySystem(CARS-25).2016-02-23 Received,2016-05-13 Accepted.腐植酸类物质(humic substances,HS)是有机质中重要的组成部分,可来源于?
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