Estimation of crop water requirement for rice- wheat and rice- maize cropping system using CROPWAT model for Pusa, Samastipur district, Bihar

Autor:	Shabanam Kumari, Ravish Chandra
Rok vydání:	2021
Předmět:	Crop Crop coefficient Irrigation Agronomy biology Environmental science Relative humidity Penman–Monteith equation Cropping system biology.organism_classification Water requirement Pusa
Zdroj:	Journal of AgriSearch. 8:143-148
ISSN:	2348-8867 2348-8808
DOI:	10.21921/jas.v8i2.7299
Popis:	This study is about estimation of crop water requirement for rice-wheat and rice-rabi maize cropping system for Pusa Region of Samastipur district of Bihar using CROPWAT model for year 2017-18.The effective rainfall was calculated using USDA S.C. Method. Reference crop evaporation was calculated using meteorological data viz temperature, relative humidity, wind speed and Sunshine using Penman Monteith equation. The meteorological data were collected from university observatory of R.P.C.A.U Pusa. Crop coefficient (Kc) value was taken according to crop growth stages. Effective rainfall and crop water requirement was used for determining net irrigation requirement. The annual crop water requirement of Rice- Wheat cropping system was found to be 904.1 mm whereas the crop-water requirement of Rice- Rabi Maize cropping system was 991.7 mm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ab021d4a2faeda02f2ff1e0fd9919420 https://doi.org/10.21921/jas.v8i2.7299 Zobrazit plný text záznamu