STUDY ON THE YIELD ASSESSE INDEXES AND DETERMINATE OPTIMUM DEPTH IRRIGATION FOR TWO CULTIVARS OF COTTON ON DIFFERENT LEVEL OF WATER SALINITY

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NAJAFI MOOD M.H.; ALI ZADEH A.; DAVARI K.; KAFI M.; SHAHIDI A.

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Journal: Journal of Water and Soil Year:2012 | Volume:26 | Issue:4 Page(s): 990-998

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Title

STUDY ON THE YIELD ASSESSE INDEXES AND DETERMINATE OPTIMUM DEPTH IRRIGATION FOR TWO CULTIVARS OF COTTON ON DIFFERENT LEVEL OF WATER SALINITY

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Keywords

COTTONQ2

DEFICIT IRRIGATIONQ3

SALINITYQ2

YIELD ASSESSEQ2

Abstract

This experiment was conducted based upon a factorial split plot design consisting of three factors: SALINITY with three levels (2.2, 5.5 and 8.3 dS/m), irrigation with four levels (50%, 75%, 100% and 125%), cultivars with two levels (Varamin and Khordad). There were three replicates for each treatment combination. SALINITY was considered as main plot while the other factors were arranged as sub plots in the experiment. Effects SALINITY and DEFICIT IRRIGATION on yield for cultivars of COTTON studied with Marginal Production (MP), Marginal Rate of Technical Substitution (MRTS) and Value of Marginal Production (VMP) indexes. Also for economics analysis, optimum depth of irrigation for DEFICIT IRRIGATION and complete irrigation depth were determined for tow cultivar.MPI showed That in DEFICIT IRRIGATION condition, yield of Khordad less than Varamin, for 1 centimeter of irrigation depth. But in over irrigation level, decreasing yield of Khordad rather than Varamin. Also MPECw showed, That yield decreased 31.8 Kg/ha on Varamin and 76.5 Kg/ha on Khordad cultivars, by increasing 1 dS/m SALINITY of irrigation water. MRTS index showed for instant yield, when SALINITY of irrigation water decrease 1 dS/m, must be increase depth of irrigation, 1.68, 3.85 cm for Varamin and Khordad respectively. So that, in equal situation of irrigation water SALINITY, optimum irrigation depth for Khordad was rather than Varamin.Also in all of SALINITY levels, optimum irrigation depth, for Khordad was rather than Varamin.

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APA: Copy

NAJAFI MOOD, M.H., ALI ZADEH, A., DAVARI, K., KAFI, M., & SHAHIDI, A.. (2012). STUDY ON THE YIELD ASSESSE INDEXES AND DETERMINATE OPTIMUM DEPTH IRRIGATION FOR TWO CULTIVARS OF COTTON ON DIFFERENT LEVEL OF WATER SALINITY. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 26(4), 990-998. SID. https://sid.ir/paper/141869/en

Vancouver: Copy

NAJAFI MOOD M.H., ALI ZADEH A., DAVARI K., KAFI M., SHAHIDI A.. STUDY ON THE YIELD ASSESSE INDEXES AND DETERMINATE OPTIMUM DEPTH IRRIGATION FOR TWO CULTIVARS OF COTTON ON DIFFERENT LEVEL OF WATER SALINITY. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2012;26(4):990-998. Available from: https://sid.ir/paper/141869/en

IEEE: Copy

M.H. NAJAFI MOOD, A. ALI ZADEH, K. DAVARI, M. KAFI, and A. SHAHIDI, “STUDY ON THE YIELD ASSESSE INDEXES AND DETERMINATE OPTIMUM DEPTH IRRIGATION FOR TWO CULTIVARS OF COTTON ON DIFFERENT LEVEL OF WATER SALINITY,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 26, no. 4, pp. 990–998, 2012, [Online]. Available: https://sid.ir/paper/141869/en

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