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Abd El-Hafeez,, A., Abuldahab, A., Elayan, S., Abd Allah, A. (2000). COTTON PRODUCTIVITY AND WATER CONSUMPTIVE USE UNDER DIFFERENT SOIL MOISTURE STRESSES AND NPK FERTILIZER LEVELS. Journal of Plant Production, 25(12), 7399-7406. doi: 10.21608/jpp.2000.260242
A. A. Abd El-Hafeez,; A. A. Abuldahab; Sohair E. D. Elayan; Amany M. Abd Allah. "COTTON PRODUCTIVITY AND WATER CONSUMPTIVE USE UNDER DIFFERENT SOIL MOISTURE STRESSES AND NPK FERTILIZER LEVELS". Journal of Plant Production, 25, 12, 2000, 7399-7406. doi: 10.21608/jpp.2000.260242
Abd El-Hafeez,, A., Abuldahab, A., Elayan, S., Abd Allah, A. (2000). 'COTTON PRODUCTIVITY AND WATER CONSUMPTIVE USE UNDER DIFFERENT SOIL MOISTURE STRESSES AND NPK FERTILIZER LEVELS', Journal of Plant Production, 25(12), pp. 7399-7406. doi: 10.21608/jpp.2000.260242
Abd El-Hafeez,, A., Abuldahab, A., Elayan, S., Abd Allah, A. COTTON PRODUCTIVITY AND WATER CONSUMPTIVE USE UNDER DIFFERENT SOIL MOISTURE STRESSES AND NPK FERTILIZER LEVELS. Journal of Plant Production, 2000; 25(12): 7399-7406. doi: 10.21608/jpp.2000.260242

COTTON PRODUCTIVITY AND WATER CONSUMPTIVE USE UNDER DIFFERENT SOIL MOISTURE STRESSES AND NPK FERTILIZER LEVELS

Article 8, Volume 25, Issue 12, December 2000, Page 7399-7406  XML PDF (593.18 K)
Document Type: Original Article
DOI: 10.21608/jpp.2000.260242
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Authors
A. A. Abd El-Hafeez,; A. A. Abuldahab; Sohair E. D. Elayan; Amany M. Abd Allah
Agron. Dept., Fac. Agric., Cairo University.
Abstract
Three field  experiments were carried out in the Experimental Station, Faculty of Agric, Cairo Univ. during three seasons (1997, 1998 and 1999). Giza 75 variety was used in 1997 and Giza 89 in 1998 and 1999 to investigate the response of cotton plant to irrigation after different depletion levels of available soil moisture (40, 60 and 80 %) under three levels of NPK fertilizers to determine the best treatment of irrigation interval and fertilizer level which gives the highest yield and quality. Results obtained indicated that, irrigation and fertilizer levels, with one exception , had a significant effect on number of open bolls/plant and in-significant effect on boll weight at all seasons. Irrigation at 60 % ASMD and lower or recommended. NPK levels gave the highest seed and lint cotton yields. In general irrigation and fertilizer levels had no significant effect on lint properties in 1999 season and a significant effect with few exceptions in 1997 and 1998 seasons. Irrigation at 80 % ASMD gave the lowest value of W.C.U and the highest value of W.U.E. Low NPK fertilizer level gave the highest values of fertilizer use efficiency.
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