جۆری توێژینه‌وه‌: Original Article

نوسه‌ران

1 Professor of Soil Chemistry, Univ. of Salahaddin, Erbil.

2 Asst . lecturer at Bakrajo Agricultural Institute

پوخته‌

The factorial pot experiment was conducted at Bakrajo Research Station,
Ministry of Agriculture and Water Resources, Sulaimani Governorate during the
winter growing season from 1/12/2014 to 10/6/2015 for limiting of Fe critical
level of soils and wheat plant. The pot factorial experiment included the effect
of five levels of Fe- EDDHA (0, 2, 4, 6, and 8) mg Fe kg soil-1
, soils of 20
locations and their effects on growth, yield and quality of wheat using
completely randomized design with 4 replicates. The results indicated to the
significant effect of applied Fe levels on grain yield of wheat, the highest mean
value (12.66) g pot-1 was recorded from the second treatment (2 mg Fe kg -1
)
which ranged between (3.11-28.02) g pot-1
, while the lowest mean value (11.09)
g pot-1
obtained from the 5 th
treatment (8 mg Fe kg -1
) which ranged between
(3.14-27.62) g pot-1
. The critical level of Fe was determined in wheat using
graphic method and statistical method depending on iron concentration in the
plant (mg kg-1 dry weight) and relative yield the iron which was (50.50 mg kg-1
dry matter .While the critical level of iron in the studied soil was (2.61) mgkg-1
using graphical method and (2.50) mgkg-1
depending on statistical method for
the studied soils in Sulaimani governorate.

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