Main Article Content



There are environmental hazards of synthetic nitrogen fertilizers, however, there is a general tendency to raise the yield and quality of strategic crops in Egypt i.e., onion plant. Also, a little is known about the joint effects of different nitrogen sources as soil addition plus foliar spraying with bio-stimulants on onion plants. Thus, this research paper aims to assess the possibility of using compost as a partial substitute for synthetic nitrogen fertilizer with onion plants sprayed with some bio stimulants. During two successive seasons (2020/2021 and 2021/2022), a field trial was performed aiming to evaluate the effect of nitrogen recommended dose (NRD) via different nitrogen sources i.e., plant compost (2.0 %N), ammonium sulphate (21.0%N), urea (46.5%N) and ammonium nitrate (33.5%N) and some bio stimulates on onion plant and some soil properties. The nitrogen treatments [N1:40% of NRD as plant compost +20% of NRD as ammonium sulphate + 20% of NRD as urea+20% of NRD as ammonium nitrate, N2:100% of NRD as ammonium sulphate, N3:100% of NRD as urea and N4:100% of NRD as ammonium nitrate] represented the main plots, while foliar application of bio-stimulants represented the sub main plots, where the foliar application treatments were F1: without (control), F2: liquorice extract (7.50 gL-1); F3: garlic extract (350.0 ml L-1) and F4: yeast extract (7.5 gL-1).The findings indicate that onion plants grown under N1 treatment had growth, yield and quality traits better than the corresponding onion plants grown under other nitrogen treatments, where N2 treatment came in the second order and N3 treatment came in the third order, while N4 treatment came in the last order. Regarding foliar application, the plants sprayed with garlic extract (F3) had the highest values of studied traits followed by that sprayed with liquorice extract (F2) then that spayed with yeast extract (F4) and lately that grown without bio stimulants (F1). Generally, the best performance of onion plants was recorded under N fertilization of 40% of NRD as plant compost + 20 % of NRD as ammonium sulphate + 20 % of NRD as urea+ 20 % of NRD as ammonium nitrate and spraying, simultaneously, with garlic extract. Also, all studied soil properties like soil EC, pH, Om and available N differed due to all studied treatments. Thus, it can be confirmed the possibility of using plant compost as a partial substitute for mineral N fertilizer with onion plants sprayed with some bio stimulants.

Plant compost, garlic extract, yeast extract and liqourice extract

Article Details

How to Cite
EL-SHERPINY, M. A., KANY, M. A., & SAKARA, H. M. (2022). ENHANCEMENT OF GROWTH AND YIELD QUALITY OF ONION PLANT VIA FOLIAR APPLICATION OF BIO-STIMULANTS UNDER DIFFERENT NITROGEN SOURCES. Journal of Global Agriculture and Ecology, 14(4), 13-24. https://doi.org/10.56557/jogae/2022/v14i47703
Original Research Article


Marey RA, Geries LS, Abd-El-Kareem AM. Yield, Quality and Economic Evaluation for Onion grown at Different Densities under Weed Control Treatments. Journal of Plant Production. 2020 Dec 1;11(12):1271-82.

Almaroai YA, Eissa MA. Role of marine algae extracts in water stress resistance of onion under semiarid conditions. Journal of Soil Science and Plant Nutrition. 2020 Sep;20(3):1092-101.

FAOSTAT. Food and Agriculture Data. Food and Agriculture Organization; 2019.

DOI: http://www.fao.org/ faostat/en/#data/QC.

Seadh ACEG. Improvement of some wheat varieties productivity under organic and minerals fertilization. Ph.D. Thesis Fac, Agric, Mansoura. Univ; 2014.

Seadh S, Abdel-Moneam MA, Sarhan HM, El-Agamy HE. Possibility of Using Compost as A Partial Substitute for Mineral Nitrogen Fertilizer and Evaluating This on Performance of Sugar Beet Plants Sprayed with Boron from Different Sources. Journal of Plant Production. 2021 Oct 1;12(10):1111-7.

Mohamed MH, Badr EA, Sadak MS, Khedr HH. Effect of garlic extract, ascorbic acid and nicotinamide on growth, some biochemical aspects, yield and its components of three faba bean (Vicia faba L.) cultivars under sandy soil conditions. Bulletin of the National Research Centre. 2020 Dec;44(1):1-8.‏

Aly A, Eliwa N, Abd El Megid MH. Improvement of growth, productivity and some chemical properties of hot pepper by foliar application of amino acids and yeast extract. Potravinarstvo. 2019 Jan 1;13(1).

Dastagir G, Rizvi MA. Glycyrrhiza glabra L.(Liquorice). Pakistan journal of pharmaceutical sciences. 2016 Sep 1;29(5).

El-Ghamriny EA, Arisha HM, Nour KA. Studies on tomato flowering, fruit set, yield and quality in summer season. 1.-spraying with Thiamine, ascorbic acid and yeast. Zagazig Journal of Agricultural Research (Egypt). 1999.

Reeuwijk LP. Procedures for soil analysis. inter. Soil Ref. and Info. Center. Food and Agric. Organization of the United Nations; 2002.

Haluschak P. Laboratory methods of soil analysis. Canada-Manitoba soil survey. 2006 Apr:3-133.

Sadasivam S. Biochemical methods. New Age International; 1996.

Rukun L. Analytical Methods of Soil and Agricultural Chemistry. Beijing: China Agricultural Science and Technology Press; 1999.

AOAC. Official Methods of Analysis. 18th Ed. Association of Official Analytical Chemists, Inc., Gaithersburg, MD, Method 04; 2000.

Gomez KA, Gomez AA. Statistical procedures for agricultural research. John wiley & sons; 1984 Feb 17.

El Mantawy RF, Abd El-Azeiz Eh, Elgazzar I. Response of maize to combinations of organic and mineral nitrogen fertilization on growth, productivity and soil properties under calcareous and alluvial soils. Plant Cell Biotechnology and Molecular Biology. 2021 Jun 17:183-98.