Skip navigation
Beta Version

Thesis

ASSESSMENT OF CLIMATE CHANGE IMPACT ON RAIN WATER PRODUCTIVITY IN SEMI-ARID ALFISOL THROUGH AQUACROP MODEL IN MAIZE (Zea mays L.)

en
250
32
0

Attachments [ 1 ]

More Details

2015-06-30
Dr. B. S. Polisgowdar, Dr. K. Srinivas Reddy, Dr. M S Ayyanagowdar
UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR
205
Rainfed, Aquacrop, Supplemental Irrigation, Maize, Climate change.
ASSESSMENT OF CLIMATE CHANGE IMPACT ON RAIN WATER PRODUCTIVITY IN SEMI-ARID ALFISOL THROUGH AQUACROP MODEL IN MAIZE (Zea mays L.)
ASSESSMENT OF CLIMATE CHANGE IMPACT ON RAIN WATER PRODUCTIVITY IN SEMI-ARID ALFISOL THROUGH AQUACROP MODEL IN MAIZE (Zea mays L.)
Ph.D

The rainwater harvesting in the semi arid regions enhance the livelihoods of rainfed farmers by mitigating the dry spells under changing climate. The present study was laid out in a split-split plot statistical design with three replications. There were five main irrigation treatments viz., I0, I1, I2, I3, I4, two sub treatments viz., M0 (no mulching), M1 (mulching @ 5 t ha-1 with glyricidia) and two sub-sub treatments viz., NF (normal fertilizer) and HF (high fertilizer) to study the effect of supplemental irrigation and crop management practices on maize grain yield and water productivity in semi arid alfisols of Telangana state. The results of the present study showed that, the highest average grain yield of 3.19 t ha-1 was recorded in I4 and lowest was in I0 (1.78 t ha-1). The highest average water productivity (10.65 kg ha-1 mm-1) was recorded in I4 followed and the lowest was in I0 (7.60 kg ha-1 mm-1). The developed crop water production functions indicated that, the grain yield was increased with increase in depth of supplemental irrigation. The AquaCrop model was calibrated for simulation of grain yield, biomass and water productivity for all treatment levels and the prediction error statistics were 0.94 < E < 0.95 %, 0.06

Comments

(Leave your comments here about this item.)

Item Analytics

 
 

Select desired time period