Evaluation of FAOAqua Crop model for wheat under different irrigation regimes
Journal Title: Journal of Applied and Natural Science - Year 2016, Vol 8, Issue 1
Abstract
The experiment was conducted at the research farm of the Water Technology Centre, IARI, New Delhi during rabi seasons of 2010-11and 2011-12. Irrigation treatments include irrigation applied at 50% deficit (W1) and 25 % deficit (W2) and full irrigation (W3) under recommended fertilization levels with split doses of N-fertilizer. Full irrigation treatment was based on irrigations to meet the soil moisture deficit up to the field capacity (FC) level and deficit irrigation treatments of 25% and 50% were imposed with respect to the full irrigation.The model was calibrated with experiment generated data sets of rabi 2010-11 and validated using the data set of rabi 2011-12. It was observed that the validated model performed well for grain yield prediction with absolute prediction error of 2.9%, 0.91% and 7.85% for full, 25% deficit and 50% deficit irrigation levels, respectively. Also, for prediction of biomass yield the prediction error ranged from 11.81% to 28.96% for all three irrigation treatments. Moreover, the validated model was observed to predict the water productivity with absolute prediction errors of 43.57%, 13.87% and 12.8% for full, 25% deficit and 50% deficit irrigation treatment levels, respectively. Nonetheless, it was observed from this study that the AquaCrop model can be used to simulate the grain and biomass yield for wheat crop with acceptable accuracy under different irrigation regimes in a semi-arid enviroment.
Authors and Affiliations
A. Sarangi, K. K. Bandyopadhyay
Keywords
Related Articles
- EP ID EP284810
- DOI -
- Views 98
- Downloads 0
Quantitative environmental impact assessment of the Open cast mining in Sonbhadra district, Uttar Pradesh, India
The district Sonbhadra, previously a part of Mirzapur district in Uttar Pradesh, India, was created as a separate district in 1991.Geologically the area consists of Vindhyan supergroup, Mahakoshal group and Dudhi granito...
Comparative study of some non-linear models for predicting the yield of Gmelina arborea plantation.
Yield models are important for effective forest management and as such were developed for the University of Benin Gmelina arborea plantation, Nigeria. The objectives of the study were to develop, evaluate and compare pre...
Diagnostic characters of three nymphal instars and morphological features of adult Collard-dove louse Columbicola bacillus (Phthiraptera : Insecta)
The morphological features of three instars of nymphs and adults of Columbicola bacillus (Ischnocera: Phthiraptera) collected from Collard-dove Streptopelia decaocto were studied. Present report furnishes Second in...
Efficacy of animal origin products and ajwain powder against honey bee diseases in Apis mellifera (Linnaeus) colonies in Uttarakhand-A novel eco-friendly approach
The studies to manage the honey bee bacterial European foul brood ( EFB) disease caused by Melisococcus plutonius and ectoparasitic brood mite disease caused by Varroa destructor in the colonies of Apis mellifera (L.) at...
Comparative cost and returns of tractor owned and hired farms in Tungabhadra project (TBP) area of Karnataka, India
Mechanization saves time in completing different operations, which gives the crop more time to mature, allows the farmer to be more flexible in his farming operations and facilitates multi cropping. At present in India,...