干旱区生态环境知识资源中心(Arid): ELECTRICAL PROPERTIES PREDICT WHEAT LEAF MOISTURE

Arid

DOI	10.13031/trans.14210
	ELECTRICAL PROPERTIES PREDICT WHEAT LEAF MOISTURE
	Hao, Y. M.; Hua, Y. T.; Li, X.; Gao, X. Q.; Chen, J. L.
通讯作者	Hua, YT (corresponding author), Tarim Univ, Alar 843300, Xinjiang, Peoples R China.
来源期刊	TRANSACTIONS OF THE ASABE
ISSN	2151-0032
EISSN	2151-0040
出版年	2021
卷号	64 期号:3 页码:929-936
英文摘要	In this study, we aimed to establish a non-destructive and rapid approach to monitor the moisture content of wheat leaves in Southern Xinjiang, China, and promptly acquire information on the physiological water demand of crops to guide precision irrigation. Wheat leaves were used as the research object. Using a custom-made clamped parallel-plate capacitor and LCR digital bridge meter, we determined the electrical properties (capacitance and resistance) of wheat leaves with various moisture contents within a frequency range from 0.12 to 100 kHz. Moreover, we explored the correlation between leaf moisture content and the electrical properties. Our data showed that leaf moisture exhibited the best correlation with the electrical properties at 50 kHz. Under these optimized conditions, a model for moisture measurement was established using a single-parameter method (capacitance or resistance). However, the estimated standard errors (RMSE) of this method were 3.29% (for resistance) and 3.49% (for capacitance), which were greater than the standard error of the measured moisture content (2%). Therefore, we developed an improved model using a two-parameter method (capacitance and resistance), and the estimated standard error was 2.68%, which was more feasible for predicting moisture content compared with the single- parameter method. The model was validated using eight groups of wheat leaf samples at the turning-green stage and the jointing stage, and the RMSE values were less than 2%. Our findings provide a scientific basis for real-time and targeted water-saving irrigation of wheat in arid areas of Southern Xinjiang.
英文关键词	Electrical property Model Moisture content Precision irrigation Wheat leaves
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000664471700014
WOS关键词	DIELECTRIC-PROPERTIES ; WATER-CONTENT ; CAPACITANCE ; IMPEDANCE ; YIELD
WOS类目	Agricultural Engineering
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351900
作者单位	[Hao, Y. M.; Hua, Y. T.; Li, X.; Gao, X. Q.; Chen, J. L.] Tarim Univ, Coll Informat Engn, Alar, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Hao, Y. M.,Hua, Y. T.,Li, X.,et al. ELECTRICAL PROPERTIES PREDICT WHEAT LEAF MOISTURE[J],2021,64(3):929-936.
APA	Hao, Y. M.,Hua, Y. T.,Li, X.,Gao, X. Q.,&Chen, J. L..(2021).ELECTRICAL PROPERTIES PREDICT WHEAT LEAF MOISTURE.TRANSACTIONS OF THE ASABE,64(3),929-936.
MLA	Hao, Y. M.,et al."ELECTRICAL PROPERTIES PREDICT WHEAT LEAF MOISTURE".TRANSACTIONS OF THE ASABE 64.3(2021):929-936.