Developing Empirical Relations to Estimate Single Crop Co-Efficient of Banana Crop using Landsat-8 Satellite Images

Select Volume / Issue:

• Volume 8,Issue 1,Jan. 2021

Year:

2021

Type of Publication:

Article

Keywords:

Evapotranspiration, Banana Crop, landsat-8, Kc Values

Authors:

Devrajani, Satesh Kumar; Kumar, Mukesh; Sootar, Mahadev

Journal:

IJRAS

Volume:

8

Number:

1

Pages:

11-23

Month:

January

ISSN:

2348-3997

Abstract:

Traditional method such as lysimeter provides point values of crop co-efficient values for any crop. While it can vary in space. To account spatial variation satellite images can be used for determining Kc values. Thus, this study was carried out to demonstrate the usage of Landsat-8 satellite images for determining Kc values for banana crop for different growth stages. In this study, four empirical relations were developed using satellite-based indices for four growth stages. All developed relations showed strong association (R2 = 0.84) between Kc values and satellite-based indices (NDVI and SAVI). The developed equations were also validated against field-based Kc values. The results showed the negligible error given by developed equation (BIAS = 0.424, RMSE = 0.00425). Thus, it is suggested that these equations can be employed to determine Kc values of banana for area having similar plant and climatic characteristics.

Full text: IJRAS_933_FINAL.pdf [Bibtex]