Spectral response of rice crop and its relation to yield and yield attributes

Autor:	T. P. Singh, Baldev Sahai, N. K. Patel, M. S. Patel
Rok vydání:	1985
Předmět:	food and beverages Biomass Straw engineering.material Agronomy Yield (chemistry) engineering Radiance General Earth and Planetary Sciences Fertilizer Cultivar Leaf area index Water content Mathematics
Zdroj:	International Journal of Remote Sensing. 6:657-664
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431168508948488
Popis:	Ground-based radiometric measurements were conducted on six varieties of rice crop during an entire growth cycle using a hand-held seven-band radiometer. Concomitant measurements of some of the yield attributes were also made. Spectral data were also collected on a single variety grown under 12 different fertilizer treatments. Spectral data have been correlated with leaf area index, total wet biomass, total dry biomass, plant water content and final grain, straw and total yield. The results show similar temporal spectral responses of all six varieties and a strong correlation of agronomic parameters with spectral parameters derived from the near-infrared and red radiances. Red and near-infrared radiance ratio and normalized differences were found sensitive to the N fertilizer application but not to the P and K fertilizers. Linear correlations were observed between spectral parameters and final grain, straw and total yield
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7fd8c0b9c3acf768a512bd83b6d1e1a https://doi.org/10.1080/01431168508948488 Zobrazit plný text záznamu