THE EFFECTS OF IRRIGATION INTERVALS AND METHODS OF N APPLICATION ON SOME QUANTITATIVE & QUALITATIVE CHARACTERISTICS OF FORAGE SORGHUM

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KOHANMOO M.A.; MAZAHERI D.

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Journal: Iranian Journal of Crop Sciences Year:2003 | Volume:5 | Issue:2 Page(s): 75-85

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Title

THE EFFECTS OF IRRIGATION INTERVALS AND METHODS OF N APPLICATION ON SOME QUANTITATIVE & QUALITATIVE CHARACTERISTICS OF FORAGE SORGHUM

Author(s)

KOHANMOO M.A. | MAZAHERI D. | Issue Writer Certificate

Keywords

FORAGE SORGHUM (SORGHUM BICOLOR (L) MOENCH)Q4

IRRIGATION INTERVALSQ3

N APPLICATIONQ4

DRY MATTER YIELDQ2

Abstract

An experiment was conducted in 1994 in Karaj, Seed and Plant improvement Institute to study the effects of IRRIGATION INTERVALS and methods of N APPLICATION on the yield and some qualitative and quantitative characteristics of forage sorghum (Sorghum bicolor (L) Moench var. speed feed). A split plot in time & site design with four replications was used; the IRRIGATION INTERVALS (every 7, 12, 17 and 22 days) were the main plots. Each main plot was sub-divided into three sub-plots for assigning the methods of N APPLICATION. i. e. M1= 1/2 of N applied when the plants had 5 to 7 leaves and the other half after the first harvest. M2= 1/3 of N at 5 to 7 leaves stage, 1/3 of N when the plants had 30 - 40 cm height and the last 1/3 of N after the first harvest. M3= 1/3 of N at 5 to 7 leaves stage, 1/3 of N after the first harvest and 1/3 of N when the height of regrown was about 30-40 cm. Results showed that 7 and 12 days intervals for imigation and M2, M3 methods of N APPLICATION provided better conditions for crop development and growth, because the crop used environmental factors better than the other treatments. The most characteristics in M2 and M3 distribution of N were better than M1. It was concluded that, if the crop is sown in time, the 10 - 12 days of IRRIGATION INTERVALS and splitting nitrogen applications at two growth stages (M2 or M3) of sorghum is recommended for Karaj region.

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APA: Copy

KOHANMOO, M.A., & MAZAHERI, D.. (2003). THE EFFECTS OF IRRIGATION INTERVALS AND METHODS OF N APPLICATION ON SOME QUANTITATIVE & QUALITATIVE CHARACTERISTICS OF FORAGE SORGHUM. IRANIAN JOURNAL OF CROP SCIENCES, 5(2), 75-85. SID. https://sid.ir/paper/57194/en

Vancouver: Copy

KOHANMOO M.A., MAZAHERI D.. THE EFFECTS OF IRRIGATION INTERVALS AND METHODS OF N APPLICATION ON SOME QUANTITATIVE & QUALITATIVE CHARACTERISTICS OF FORAGE SORGHUM. IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2003;5(2):75-85. Available from: https://sid.ir/paper/57194/en

IEEE: Copy

M.A. KOHANMOO, and D. MAZAHERI, “THE EFFECTS OF IRRIGATION INTERVALS AND METHODS OF N APPLICATION ON SOME QUANTITATIVE & QUALITATIVE CHARACTERISTICS OF FORAGE SORGHUM,” IRANIAN JOURNAL OF CROP SCIENCES, vol. 5, no. 2, pp. 75–85, 2003, [Online]. Available: https://sid.ir/paper/57194/en

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