THE STUDY OF FE AND ZN EFFECTS ON QUANTITATIVE AND QUALITATIVE PARAMETERS OF WINTER WHEAT AND DETERMINATION OF CRITICAL LEVELS OF THESEELEMENTS IN VARAMIN PLAIN SOILS

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SILSPOUR M.

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Journal: Year:2007 | Volume:20 | Issue:3 (76 IN AGRONOMY AND HORTICULTURE) Page(s): 123-133

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Title

THE STUDY OF FE AND ZN EFFECTS ON QUANTITATIVE AND QUALITATIVE PARAMETERS OF WINTER WHEAT AND DETERMINATION OF CRITICAL LEVELS OF THESEELEMENTS IN VARAMIN PLAIN SOILS

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SILSPOUR M. | Issue Writer Certificate

Keywords

WHEATQ3

CRITICAL LEVELQ3

FEQ2

ZNQ2

Abstract

Intensive and multiple cropping, cultivations of crop varieties with heavy nutrient requirement and unbalanced use of chemical FErtilizers especially nitrogen and phosphorus FErtilizers caused reduction of yields and appearing of micronutrient deficiency in crops. While balanced FErtilization and micronutrients application will increase yield and quality of crops and will insure people health in society. In order to study the effects of zinc and iron on WHEAT and to find out the CRITICAL LEVELs of these elements in soils, an experiment was conducted in 30 difference fields in Varamin plain. One field per 800 hectares was selected; soil samples were selected and analyzed. Experimental fields were selected based on soil test results. In each sites, the experiment was conducted with RCBD design and four treatments and three replications. Treatments included as follow: 1-Control without use of micronutrients 2-Use of ZN as ZNso4 (40 kg.ha-1) 3-Use of FE as FE-chelat (10 kg.ha-1) 4-Use of FE and ZN. Data showed that grain yield is dependent to available-Fe and available-Zn in soil. So use of FE and ZN had not any effects in soils which had available-Fe and ava-Zn more than 4.7 and 0.8 mg.kg-1 respectively. Maximum increasing of grain yield by FE application was 1100 kg.ha-1in soils which contain 2 mg.kg-1 available FE and by ZN application, grain yield increase received to 1200 kg.ha-1 in soils which contain 0.5 mg.kg-1 available ZN. There was a positive correlation between grain yield and available soil FE or available soil ZN. These correlations were fitted to logarithmic models with a significant R2.The average grain yield increase by using of FE and ZN were 317 and 330 kg.ha-1 respectively. Yield increased 868 kg.ha-1by using of FE and ZN. So the CRITICAL LEVELs of FE and ZN in soils were determined 4.7 and 0.8 mg.kg-1 respectivly. By this way,%54 and %46 of soils under WHEAT cultivation had deficient to FE and ZN respectively. So use of ZN and FE FErtilizers highly recommended for yield increasing in these soils.

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APA: Copy

SILSPOUR, M.. (2007). THE STUDY OF FE AND ZN EFFECTS ON QUANTITATIVE AND QUALITATIVE PARAMETERS OF WINTER WHEAT AND DETERMINATION OF CRITICAL LEVELS OF THESEELEMENTS IN VARAMIN PLAIN SOILS. PAJOUHESH-VA-SAZANDEGI, 20(3 (76 IN AGRONOMY AND HORTICULTURE)), 123-133. SID. https://sid.ir/paper/19089/en

Vancouver: Copy

SILSPOUR M.. THE STUDY OF FE AND ZN EFFECTS ON QUANTITATIVE AND QUALITATIVE PARAMETERS OF WINTER WHEAT AND DETERMINATION OF CRITICAL LEVELS OF THESEELEMENTS IN VARAMIN PLAIN SOILS. PAJOUHESH-VA-SAZANDEGI[Internet]. 2007;20(3 (76 IN AGRONOMY AND HORTICULTURE)):123-133. Available from: https://sid.ir/paper/19089/en

IEEE: Copy

M. SILSPOUR, “THE STUDY OF FE AND ZN EFFECTS ON QUANTITATIVE AND QUALITATIVE PARAMETERS OF WINTER WHEAT AND DETERMINATION OF CRITICAL LEVELS OF THESEELEMENTS IN VARAMIN PLAIN SOILS,” PAJOUHESH-VA-SAZANDEGI, vol. 20, no. 3 (76 IN AGRONOMY AND HORTICULTURE), pp. 123–133, 2007, [Online]. Available: https://sid.ir/paper/19089/en

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