Response of water deficit regime and soil amelioration on evapotranspiration loss and water use efficiency of maize (Zea mays l.) in subtropical northeastern Himalayas

Rainfed maize production in the hilly ecosystem of Northeastern Himalayas often suffers from moisture and soil acidity induced abiotic stresses. The present study measured evapotranspiration loss (ET c ) of maize crop under controlled condition (pot experiment) of water deficit (W 25 -25 % and W 50...

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Bibliographic Details
Published in:International journal of biometeorology 2017-05, Vol.61 (5), p.845-855
Main Authors: Marwein, M. A., Choudhury, B.U., Chakraborty, D., Kumar, M., Das, A., Rajkhowa, D. J.
Format: Article
Language:English
Subjects:
Acidic soils
Acidity
Animal Physiology
Biological and Medical Physics
Biometeorology
Biophysics
Blistering
Calcium Compounds - pharmacology
Cereal crops
Climate
Corn
Crop production
Dehydration - physiopathology
Dry matter
Earth and Environmental Science
Efficiency
Environment
Environmental Health
Evapotranspiration
Fertilizers
Field capacity
Grain
India
Irrigation water
Lime
Liming
Meteorology
Nitrogen - pharmacology
Nutrition
Original Paper
Oxides - pharmacology
pH effects
Phosphorus
Phosphorus - pharmacology
Plant Physiology
Plant Transpiration
Potassium - pharmacology
Soil - chemistry
Soil amendment
Soil erosion
Soil lime
Soil moisture
Soil stresses
Soil water
Water - pharmacology
Water deficit
Water regimes
Water use
Water use efficiency
Zea mays
Zea mays - drug effects
Zea mays - growth & development
Zea mays - physiology
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Summary:Rainfed maize production in the hilly ecosystem of Northeastern Himalayas often suffers from moisture and soil acidity induced abiotic stresses. The present study measured evapotranspiration loss (ET c ) of maize crop under controlled condition (pot experiment) of water deficit (W 25 -25 % and W 50 -50 % of field capacity soil moistures) and well watered (W 100  = 100 % of field capacity (FC)) regimes in strong acid soils (pH = 4.3) of the Northeastern Himalayan Region of India. The response of soil ameliorants (lime) and phosphorus (P) nutrition under differential water regimes on ET c losses and water use efficiency was also studied. The measured seasonal ET c loss varied from 124.3 to 270.9 mm across treatment combinations. Imposition of water deficit stress resulted in significant ( p  
ISSN:0020-7128
1432-1254
DOI:10.1007/s00484-016-1262-4