TITLE

Response of Onion Plants to Organic Fertilizer and Foliar Spraying of Some Micro- nutrients under Sandy Soil Conditions

AUTHOR(S)
Rizk, Fatma A.; Shaheen, A. M.; Abd El-Samad, E. H.; El-Labban, T. T.
PUB. DATE
May 2014
SOURCE
Journal of Applied Sciences Research;May2014, Vol. 10 Issue 5, p383
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Aiming to study the effect of organic fertilizer (compost at rates of 5.0 and 7.5 tons/fed.) and foliar application of micro-nutrients Fe, Zn or Mn at a dose of 2 cm/l for three times in 15 days interval as well as control treatment (no compost added and no micro-nutrients sprayed), on growth characters, bulb yield and its components as well as some physical properties of bulb of onion plants cv. Giza 20 grown under sandy soil conditions, two experiments were carried out at Agricultural Experiment Station of National Research Centre, in a split plot design with three replicates during two consecutive winter cropping seasons of 2011/2012 and 2012/2013. Application of Nile compost either at 5.0 and 7.5 tons/fed. caused an enhancement in all measured parameters as compared to control treatment. Onion plants treated with Nile compost at rate of 7.5 tons/fed. gave the highest values of plant length, number of leaves/plant, fresh and dry weight of whole plant and its different organs, bulb and neck dimensions, average weight of bulb, bulb TSS, total bulb yield, percentage of yield increase over control and exportable yield in comparison to control treatment in both season of study. Whereas, using Nile compost at rate of 5.0 tons/fed. attained the highest values of un-marketable and percentage of un-marketable bulb yield in the second season as well as percentage of exportable bulb yield in both seasons. Foliar application of micro-nutrients had a stimulating effect on all measured characters if compared with control treatment. Control treatment recorded the highest values of local marketable and percentage of local marketable bulb yield in both seasons as well as un-marketable and percentage of un-marketable bulb yield in the first season only. The highest values of the rest characters were fluctuated among sprayed micro-nutrients Fe, Zn or Mn without significant differences among them, significant differences were detected only between control treatment and micro-nutrients spraying in both seasons. Regarding, the interaction effect between Nile compost and foliar application of some micro-nutrients, had significant differences only on total bulb yield and un-marketable bulb yield in both seasons of study. Furthermore, on bulb and total plant fresh weight, exportable bulb yield, neck length and bulb diameter in the first season and on plant length, neck dry weight and local marketable bulb yield in the second season. It is evident that onion plants gave the best results in both seasons when Nile compost was used at a rate of 7.5 tons/fed. and foliar sprayed by Zn or Mn.
ACCESSION #
96978192

 

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