2022
DOI: 10.3390/land12010078
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Establishment of a Monitoring Model for the Cotton Leaf Area Index Based on the Canopy Reflectance Spectrum

Abstract: Cotton is the main economic crop in China and is important owing to its use as an industrial raw material and a cash crop. This experiment was conducted in the main cotton-producing area of Xinjiang, China. A hyperspectrometer was used to monitor the canopy spectral reflectance of cotton at different stages of growth. The results showed that the leaf area index (LAI) increased with the increase in the amount of nitrogen fertilizer added during the early full boll stage and decreased with the increase in nitrog… Show more

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Cited by 4 publications
(3 citation statements)
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“…is a significant commercial crop worldwide and serves as the primary source of natural textile fiber. In China, cotton holds a crucial strategic position and has played a pivotal role in increasing agricultural output and revenue [1]. However, due to limited arable land availability, expanding the area dedicated to cotton cultivation is challenging.…”
Section: Introductionmentioning
confidence: 99%
“…is a significant commercial crop worldwide and serves as the primary source of natural textile fiber. In China, cotton holds a crucial strategic position and has played a pivotal role in increasing agricultural output and revenue [1]. However, due to limited arable land availability, expanding the area dedicated to cotton cultivation is challenging.…”
Section: Introductionmentioning
confidence: 99%
“…There are five commonly used visible-light vegetation indices: the red-to-green ratio index (RGRI) [44], excess green index (EXG) [45,46], visible light band difference vegetation index (VDVI) [47][48][49], normalized green-red difference index (NGRDI) [50], and normalized green-blue difference index (NGBDI) [51]. Among them, the VDVI has the highest overall accuracy rate of 97.47% [40], which indicates that the visible-wave vegetation index can be used to calculate vegetation coverage and has the highest applicability.…”
Section: Discussionmentioning
confidence: 99%
“…For correct nutritional diagnosis and cotton canopy structure and unharmed growth. For correct nutritional diagnosis and cotton fertilization, precise cotton LAI monitoring is important (Fan et al, 2022).…”
Section: Canopy Architecture and Leaf Area Indexmentioning
confidence: 99%