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| Strategy for Potato Nitrogen Management |
| QIN Yong-lin，FAN Ming-shou |
| College of Agronomy，Inner Mongolia Agricultural University，Hohhot 010019，Inner Mongolia，China |
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Abstract Rational N management in potato（Solanum 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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Received: 20 April 2011
Published: 22 June 2011
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