新疆农业科学2017，Vol.54Issue(1)：27-32,6.DOI:10.6048/j.issn.1001-4330.2017.01.004
基于硝酸盐的滴灌春小麦氮素追肥模型建立研究
Research of Drip Spring Wheat Nitrogen Fertilizer Model Based on Nitrate
摘要
Abstract
[Objective] To adopt crop nutrition diagnosis technology and establish fertilizer nitrogen diagnosis period model of drip irrigation wheat based on the plant nitrate.[Method] Determine plant nitrate content of key growth period of drip irrigation wheat through the relationship between nitrate concentration and N application rate and the yield and establish the fertilizer nitrogen diagnosis model of the key remaining period.[Result] There was a very significant correlation between nitrate content of drip irrigation wheat plant stem base and the yield at different development stages,and the nitrate critical value of jointing stage and booting stage were 2 782.5 and 2 553.06 mg/kg,which established spring wheat jointing stage and booting stage fertilizer fertilization model of drip irrigation wheat.[Conclusion] The plant nitrate of irrigation wheat the of jointing stage and booting stage as a diagnostic index was used to establish the corresponding application model and calculate the different nitrate test values corresponding to the amount of nitrogen fertilizer at the drip spring wheat jointing stage and booting stage.关键词
春小麦/滴灌/土壤硝态氮/氮素模型Key words
spring wheat/drip irrigation/nitrate nitrogen in soil/topdressing model分类
农业科技引用本文复制引用
刘小芳,张泽,吕新,聂迎彬..基于硝酸盐的滴灌春小麦氮素追肥模型建立研究[J].新疆农业科学,2017,54(1):27-32,6.基金项目
Supported by the Research and achievements transformation of science and technology of XPCC (2015AC001) and The scientific research and technical development programs of the sixth Agricultural Production Division in Wujiaqu City (1104)兵团科技攻关与成果转化项目(2015AC001) （2015AC001）
第六师五家渠市科学研究与技术开发计划(1104) （1104）
