Subscribe Now Subscribe Today
Research Article
 

Crop Coefficient (kc) and Water Use Efficiency (WUE) of Soybean as Affected by Soil Moisture Stress and Fertility Levels



U.A. Burriro , H.A. Samoon , F.C. Oad and G.H. Jamro
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail
ABSTRACT

Experiment were conducted to study the crop coefficient (Kc) and water use Efficiency (WUE) of soybean as affected by soil moisture stress and fertility levels at Malir Experimental Farm, Sindh Agriculture University. Tnadojam, Pakistan on silt loam soil. The results revealed that crop efficient (Kc) increased with an increase in the crop age. The Kc was higher proportionate to higher moisture availability. The peak Kc was at 105-125 days after sowing, corresponding with early stage to complete fill stage of soybean crop. Water use efficiency at 5 bar tensions signified the plants under stress and were more efficient in utilizing water for the production of grain. The higher fertility was exhibited through appropriate fertilizer levels which in-turn increased the water use efficiency and compensated water deficiency. Thus, it is recommended that crop coefficient and fertility levels should be identified for obtaining maximum water use efficiency and yield targets.

Services
Related Articles in ASCI
Similar Articles in this Journal
Search in Google Scholar
View Citation
Report Citation

 
  How to cite this article:

U.A. Burriro , H.A. Samoon , F.C. Oad and G.H. Jamro , 2002. Crop Coefficient (kc) and Water Use Efficiency (WUE) of Soybean as Affected by Soil Moisture Stress and Fertility Levels. Journal of Applied Sciences, 2: 1096-1098.

DOI: 10.3923/jas.2002.1096.1098

URL: https://scialert.net/abstract/?doi=jas.2002.1096.1098

REFERENCES
1:  Ambak, K. and L.C. Hammond, 1983. Water management and soybean yields and water balance on sandy soils. Univ. of Florida. Agronomy Abstracts.

2:  Cartter, J.L. and E.E. Hartwig, 1962. The management of soybeans. Adv. Agron., 14: 359-412.
Direct Link  |  

3:  Doss, B.D., R.W. Pearson and J.T. Rogers, 1974. Effect of soil water stress at various growth stages on soybean yield. Agron. J., 66: 297-299.
CrossRef  |  Direct Link  |  

4:  Eavis, B.E. and H.M. Taylor, 1979. Transpiration of soybean as related to leaf area, root length and soil water content. Agron. J., 71: 441-445.
Direct Link  |  

5:  Grissom, P., W.A. Raney and P. Hogy, 1955. Corp response to irrigation in Yazoo. Mississippi Agricultural and Forestry Experiment Station Bulletin No. 531.

6:  Heatherly, L.G. and W.A. Russell, 1979. Effect of soil water potential of two Soils on soybean emergence. Agron. J., 71: 980-982.
Direct Link  |  

7:  Jensen, M.E. and R.H. Haise, 1963. Estimating evapotranspiration from solar radiation. J. Irrigation Drainage Div., 89: 15-41.
Direct Link  |  

8:  Jewell, L.D., 1988. Agricultural Statistics of 1987. United States Department of Agriculture, Washingtion, DC.

9:  Peters, D.B. and L.C. Johnson, 1960. Soil moisture use by soybean. Agron. J., 52: 687-689.
Direct Link  |  

10:  Ritchie, J.T., 1983. Integrity weather management, genetic and soil information for crop yield models. Ben, J. Althemerlecture Series Agric. Puble. Office Univ. of Arkansas Ftville.

11:  Shaw, R.H. and D.R. Laing, 1965. Moisture Stress and Plant Response. Soil Science Society of America, Madison, WI., USA., pp: 73-94.

12:  Shibles, R.I., C. Anderson and A.H. Gibson, 1975. Soybean Crop Physiology. Cambridge University Press, Cambridge, MA.

13:  Smith, K.L. and W. Huyser, 1987. World Distribution and Significance of Soybean. In: Soybeans: Improvement, Production and uses, Wilcox, J.R. (Ed.). 2nd Edn., American Society of Agronomy, Madison, WI., USA., pp: 1-22.

14:  Whitt, D.M. and C.H.M. van Bavel, 1955. Irrigation of Tobacco, Peanuts and Soybean. US Govt. Printing Office, Washington, DC., pp: 376-381.

©  2021 Science Alert. All Rights Reserved