TOMATO YIELD AND NITRATE CONTENT AS AFFECTED BY N-SOURCE, APPLICATION RATE
AND HARVESTING TIME

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ZOMORRODI SH.; MONTAZERI A.; KHOSROUSHAHI ASL A.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2004 | Volume:14 | Issue:2 Page(s): 113-123

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Information Journal Paper

Title

TOMATO YIELD AND NITRATE CONTENT AS AFFECTED BY N-SOURCE, APPLICATION RATE AND HARVESTING TIME

Author(s)

ZOMORRODI SH. | MONTAZERI A. | KHOSROUSHAHI ASL A. | Issue Writer Certificate

Keywords

HARVESTING TIMEQ3

NITRATE ACCUMULATIONQ4

NITROGEN FERTILIZERSQ4

TOMATOQ4

YIELDQ4

Abstract

Excess nitrate in foodstuff is dangerous for human health, and is necessary to control its content in plant products. In this study, the effects of amounts and sources of NITROGEN FERTILIZERS and HARVESTING TIME on the YIELD and NITRATE ACCUMULATION in Koral cultivar of TOMATO (Lycopersicon esculentum) were studied. This research was carried out using split-plot design with 16 treatments in three replicates in the 1999/2000 crop season at Kahriz Agricultural Research Center in West Azarbaijan, Iran. The main plots consisted. of HARVESTING TIME (morning and evening), subplots included two levels of N sources (ammonium nitrate and urea) and four levels of application rates of 0, 120, 180, 240 kg.N ha-1. The results showed that there was a significant relationship between application rate and YIELD at of 5%level and maximum YIELD was obtained using 180 kg pure N ha-1. The effect of HARVESTING TIME on nitrate content was also significant (5% level). The nitrate content of afternoon harvest was lower that of than the morning harvest. TOMATO nitrate content was also correlated (%1 level) with the rate of application. The interaction between the amounts and the sources of NITROGEN FERTILIZERS was also significant. According to the results, maximum YIELD with the minimum NITRATE ACCUMULATION was observed at 180 kgNh-1 either as urea or ammonium nitrate, TOMATO YIELD or nitrate content were not affected by N-source.

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APA: Copy

ZOMORRODI, SH., MONTAZERI, A., & KHOSROUSHAHI ASL, A.. (2004). TOMATO YIELD AND NITRATE CONTENT AS AFFECTED BY N-SOURCE, APPLICATION RATE AND HARVESTING TIME. JOURNAL OF AGRICULTURAL KNOWLEDGE, 14(2), 113-123. SID. https://sid.ir/paper/29017/en

Vancouver: Copy

ZOMORRODI SH., MONTAZERI A., KHOSROUSHAHI ASL A.. TOMATO YIELD AND NITRATE CONTENT AS AFFECTED BY N-SOURCE, APPLICATION RATE AND HARVESTING TIME. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2004;14(2):113-123. Available from: https://sid.ir/paper/29017/en

IEEE: Copy

SH. ZOMORRODI, A. MONTAZERI, and A. KHOSROUSHAHI ASL, “TOMATO YIELD AND NITRATE CONTENT AS AFFECTED BY N-SOURCE, APPLICATION RATE AND HARVESTING TIME,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 14, no. 2, pp. 113–123, 2004, [Online]. Available: https://sid.ir/paper/29017/en

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