scholarly journals Interaction of Carbon Dioxide Enrichment and Soil Moisture on Photosynthesis, Transpiration, and Water Use Efficiency of Soybean

2014 ◽  
Vol 05 (05) ◽  
pp. 410-429 ◽  
Author(s):  
Madegowda Madhu ◽  
Jerry L. Hatfield
Keyword(s):  
Carbon Dioxide ◽  
Soil Moisture ◽  
Water Use Efficiency ◽  
Water Use ◽  
Carbon Dioxide Enrichment ◽  
Use Efficiency

Carbon Dioxide Enrichment and Irrigation Effects on Wheat Evapotranspiration and Water Use Efficiency

1996 ◽  
Vol 39 (4) ◽  
pp. 1345-1355 ◽  
Author(s):  
D. J. Hunsaker ◽  
B. A. Kimball ◽  
P. J. Pinter Jr. ◽  
R. L. LaMorte ◽  
G. W. Wall
Keyword(s):  
Carbon Dioxide ◽  
Water Use Efficiency ◽  
Water Use ◽  
Carbon Dioxide Enrichment ◽  
Use Efficiency ◽  
Irrigation Effects

Water demand and water use efficiency of winter barley in Hungary

2011 ◽  
Vol 59 (1) ◽  
pp. 13-22
Author(s):  
Z. Varga-Haszonits ◽  
E. Enzsölné Gerencsér ◽  
Z. Lantos ◽  
Z. Varga
Keyword(s):  
Soil Moisture ◽  
Water Supply ◽  
Water Use Efficiency ◽  
Water Use ◽  
Potential Evapotranspiration ◽  
Growth Period ◽  
Winter Barley ◽  
Potential Yield ◽  
Yield Data ◽  
Use Efficiency

The temporal and spatial variability of soil moisture, evapotranspiration and water use were investigated for winter barley. Evaluations were carried out on a database containing meteorological and yield data from 15 stations. The spatial distribution of soil moisture, evapotranspiration and water use efficiency (WUE) was evaluated from 1951 to 2000 and the moisture conditions during the growth period of winter barley were investigated. The water supply was found to be favourable, since the average values of soil moisture remained above the lower limit of favourable water content throughout the growth period, except for September–December and May–June. The actual evapotranspiration tended to be close to the potential evapotranspiration, so the water supplies were favourable throughout the vegetation period. The calculated values of WUE showed an increasing trend from 1960 to 1990, but the lower level of agricultural inputs caused a decline after 1990. The average values of WUE varied between 0.87 and 1.09 g/kg in different counties, with higher values in the northern part of the Great Hungarian Plain. The potential yield of winter barley can be calculated from the maximum value of WUE. Except in the cooler northern and western parts of the country, the potential yield of winter barley, based on the water supply, could exceed 10 t/ha.

Carbon Dioxide and Temperature Effects on Evapotranspiration and Water Use Efficiency of Soybean

2003 ◽  
Vol 95 (4) ◽  
pp. 1071-1081 ◽  
Author(s):  
L. H. Allen ◽  
Deyun Pan ◽  
K. J. Boote ◽  
N. B. Pickering ◽  
J. W. Jones
Keyword(s):  
Carbon Dioxide ◽  
Water Use Efficiency ◽  
Water Use ◽  
Temperature Effects ◽  
Use Efficiency

Studies of the Drip Method of Irrigation

1972 ◽  
Vol 8 (2) ◽  
pp. 171-175 ◽  
Author(s):  
I. P. Abrol ◽  
S. P. Dixit
Keyword(s):  
Soil Moisture ◽  
Water Use Efficiency ◽  
Water Use ◽  
Soil Strength ◽  
Surface Evaporation ◽  
Evaporation Losses ◽  
Use Efficiency ◽  
Reduced Surface

SUMMARYA comparison has been made of drip and conventional check basin methods of irrigation, using onions and ladies finger as test crops. Significant increases in yield and water use efficiency in drip irrigated over conventionally irrigated plots resulted from increased availability of soil moisture at low tensions and reduced surface evaporation losses. Reduced soil strength in drip irrigated plots was also a factor resulting in increased yield of onions.

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