CAJ | 학술논문

在简要介绍叶绿素仪工作原理的基础上，系统总结了课题组从2007~2014年采用叶绿素仪进行马铃薯氮素营养状况诊断的研究结果，详细分析了使用叶绿素仪SPAD-502进行马铃薯氮素营养诊断的影响因素，确立了诊断叶位，建立了临界SPAD值的计算方法，阐述了临界SPAD值与诊断时间的关系，筛选了适应于不同马铃薯品种的临界SPAD指数SL4-5，总结集成了应用诊断结果指导马铃薯氮肥管理的技术模型，并对该模型的应用提出了建议。
재간요개소협록소의공작원리적기출상，계통총결료과제조종2007~2014년채용협록소의진행마령서담소영양상황진단적연구결과，상세분석료사용협록소의SPAD-502진행마령서담소영양진단적영향인소，학립료진단협위，건립료림계SPAD치적계산방법，천술료림계SPAD치여진단시간적관계，사선료괄응우불동마령서품충적림계SPAD지수SL4-5，총결집성료응용진단결과지도마령서담비관리적기술모형，병대해모형적응용제출료건의。
After the brief introduction of working principle of chlorophyl meter, the research results on potato nitrogen nutrition diagnosis by using chlorophyl meter SPAD-502 were summarized, which were conducted from 2007 to 2014 in Inner Mongolia. In order to avoid or reduce the interference of N excluding factors on diagnosis by using chlorophyl meter, the suitable leaf position for diagnosis was determined, threshold index and its relationship with diagnosis time was analyzed and established. The screening process of the relative threshold SPAD index SL4-5 was also summarized, which adaptsed to different potato varieties to certain extent. Final y, N recommendation model based on chlorophyl meter diagnosis was proposed, and the suggestions or notes for its use were proposed as wel .