机器识别对不同氮肥施用量条件下新疆高产棉花冠层结构的研究  

Study on Machine Identification of Cotton Canopy Structure in High-yield Cotton of Xinjiang at the Condition of Different Nitrogen Fertilizer Application Amount

作　　者：张伟[1,2] 吕新[2] 

机构地区：[1]石河子大学农学院农学系耕作教研室,新疆石河子8320032 [2]新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子832003

出　　处：《新疆农业科学》2010年第3期425-430,共6页Xinjiang Agricultural Sciences

基　　金：国家自然科学基金(30160040);石河子大学"263"青年骨干教师资助计划

摘　　要：【目的】测定北疆棉区推广棉花品种新陆早10号与新陆早12号在不同氮肥用量条件下冠层结构特征的差异。【方法】采用CI-110作物冠层机器识别映像仪，在田间将安装有鱼眼探测头的观测棒定点在行间中央，调好水平，并从计算机显示屏上观察无人影等其它外界影响时开始拍照。【结果】氮肥用量过高或过低都不利于形成理想群体冠层。两品种相比，新陆早10号较新陆早12号对较高氮肥用量反应敏感。【结论】在中等氮肥用量条件下选择新陆早10号、中高氮肥用量条件下选择新陆早12号栽培种植较为适宜。氮肥用量650—950kg／hm^2是较为理想的施氮水平。[ Objective]This paper mainly discussed the differences of cotton canopy structural characteristics under the condition of different amount of nitrogen application of Xinluzao 10 and Xinluzao12 in North Xinjiang cotton growing region. [ Method] The experiment was carried out by the plant canopy structure instrument of CI- 110. The fish eye probe - observation bar was installed between cotton rows in the field. The taking photograph was started when there was no other shadow on the screen of the computer. [ Result ] Neither over - application of nitrogen fertilizer inadequate little are available to form ideal canopy structure. By the comparison of the two varieties, Xinluzao10 is more sensitive to higher application of nitrogen fertilizer by comparison with Xinluzao12. [ Conclusion]Xinluzao10 is better at middle application of nitrogen condition and Xinluzao12 is better at mid- high application of nitrogen fertilizer condition and the nitrogen application amount of 650 - 950kg/hm^2 is the more ideal application of nitrogen fertilizer.

关 键 词：机器识别 不同氮肥用量 高产棉花 冠层结构 

分 类 号：S562.062[农业科学—作物学] S126