以高产、高效为目标的马铃薯生产需要合理的氮素管理.本文分析了马铃薯氮肥利用现状,针对存在的问题提出了氮素管理的思路,即在了解马铃薯的氮素需求规律、明确马铃薯农田氮素走向的基础上选择适宜的栽培措施.在氮素管理策略上,提出既要总量控制又要分期调控,实施关键生育期氮素精确诊断监测,采用合理的施肥方式,研发适合马铃薯的新型氮素缓/控释肥料.最后,对马铃薯氮素管理的研究方向进行了展望.%Rational N management in potato ( Solarium tuberosum L.) production is taking high yield and high efficiency as its objective. This paper analyzes the present status of N utilization in potato and puts forward thoughts according to the existing problems in potato N management, as selecting proper cultivation measures on the basis of understanding potato requirement rule for nitrogen and N flow direction in potato field. As for the strategy of N management, this paper puts forward ideas of controlling the total N amount along with regulation by stages, effecting precise diagnosis of N nutrition status at key growing period, adopting rational fertilization method, studying and developing new slow/controlled-release nitrogen fertilizers for potato. Before ending, the paper prospects the research direction for potato nitrogen management.
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