EFFECT OF NITROGEN LEVELS AND FOLIAR APPLICATION WITH IRON AND ZINC ON GROWTH AND YIELD OF THE )Lactuca sativa L.)

Al-Hamadani, Fowzi Mohsin Ali; Al-Khazraje, Safwan Nawaf Fayez

doi:10.36531/ijds.2019.172620

	EFFECT OF NITROGEN LEVELS AND FOLIAR APPLICATION WITH IRON AND ZINC ON GROWTH AND YIELD OF THE )Lactuca sativa L.)
IRAQI JOURNAL OF DESERT STUDIES
Article 10, Volume 9, Issue 2, 2019, Pages 92-106 PDF (1.17 M)
DOI: 10.36531/ijds.2019.172620
Authors
Fowzi Mohsin Ali Al-Hamadani; Safwan Nawaf Fayez Al-Khazraje
Abstract
In order to determine the effect of nitrogen levels and spraying with iron and, zinc individually or together on the growth and yield of lettuce plant, a field experiment was conducted in one of the agricultural fields located in the Sufiya area of Ramadi district in Al-Anbar Governorate, on the longitude 29.34- east, latitude 33.22- north and height 48 m above sea level, which is about 1250 m from the right bank of the Euphrates River during the winter season of 2018. The experiment included two factors, the first factor four Levels of nitrogen (50,100,150 and 200 kg N ha-1) and the second factor four Treatments: (0,240 mgL-1 of Fe,120 mgL-1 of Zn and 240 +120 mg. L-1 of Fe+Zn), an experiment was carried out according to the design of the randomized complete block design (RCBD) with three replicates per treatment, results indicated that the level 200 kgN.ha-1 had significant effect in all the characteristics of vegetative growth and its components such as plant height (46.09 cm Plant-1) and leafy area (7460.80 cm2plant-1) and dry weight (200.25 gm plant-1), head diameter (42.54 cm), head circumference (92.22 cm) and number of leaves (55.74 leaves-1), and qualities of the yield and its components as the percentage of the wrap heads (98.57%), marketing yield (62.23 Mg.ha-1) and total product (89.49 Mg ha-1), Foliar application with (240 mg Fe L-1 +120 mg Zn L-1) had significant in all Characteristics of vegetative growth such as plant height (42.59 cm), leafy area (6230.17 cm.Plant-1), dry weight (188.39 gm plant-1), head diameter (39.12 cm), head circumference (86.20 cm), The number of valid papers to eat (32.00 leaf -1) and total number of leaves per plant (50.95 leaf -1) Foliar (240 mg Fe L-1 +120 mgZn L-1) together gave a significant superiority in yield characteristics and components such as percentage of head wrap (96.34%) and marketing yield (49.23 Mg ha-1) and total yield (74.87 Mg ha-1).
Keywords
nitrogen; iron; Zinc; FOLIAR; lettuce

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