Effect of Nitrogen Fertilization and Some Stimulants on Dry Weight, Yield, Bulb Quality and Storability of Garlic

Abstract

Two filed experiments were carried out during the winter seasons of 2016/2017 and 2017/2018 at the Experimental Farm, El-Gemmeiza, Agric Res. Station, (ARC), Gharbya Governorate (Middle Delta, Egypt), to study the effect of nitrogen fertilization at 90 and 120 kg/fad., and some stimulants; viz, salicylic acid (SA at 100 mg/l ), lithovit at 2 g/l and algae extract at 2%, beside unsprayed treatment on dry weight, yield, bulb quality and storability of garlic, Balady cultivar under clay soil conditions using flood irrigation system. The obtained results revealed that, the interaction between using 120 kg N/fad., and lithovit at 2 g/l increased dry weight of bulb, leaves and total dry weight/plant, N, P and K contents in bulb and leaves mineral uptake, uptake by bulb, leaves and their total uptake by plant as well as total chlorophyll in leaves, average bulb weight, marketable and total yields/faddan. While, the interaction between using 90 kg N/fad., and lithovit or SA increased nitrogen use efficiency, dry matter (DM). TSS, Pungency in bulbs at harvesting time and decreased total weight loss percentage after 180 days from storage in both seasons. The relative increases in total yield/fad., were about 41.96 and 61.11% for the interaction between fertilizing garlic plants with 120 kg N/fad., and spraying with lithovit at 2 g/l over 90 Kg N without spraying with stimulants in the 1 st and 2 nd seasons, respectively. In the same time, the interaction between 90 kg N/fad., and lithovit recorded increases in total yield/fad., were about 9.59 and 10.10% over the plants which received 120 kg N/fad., without spraying with stimulants in the 1 st and 2 nd seasons, respectively.

Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer

“…Studies with different onion cultivars during storage indicate that lower mass losses are correlated with higher dry matter accumulation in the bulbs (Kahsay et al 2013), as observed in this study (Table 2) with 'B' treated with SC and FS and 'P' treated with FA, SC and FS showed an increase in dry mass, which resulted in less bulb loss in storage (Table 3). In addition, the application of humic substances and microalgae extract in plants, provided the bulbs in storage lower mass losses in relation to the control, hence, this result was justified by the greater accumulation of dry matter and total soluble solids (Shehata et al 2017;Mansour et al 2019).…”

The efficiency of salicylic acid and poultry manure on growth and volatile oil production of Coriandrum sativum L. plants

“…Compared to the other levels in both seasons respectively. The stimulating effect of organic manure in increasing essential oil yield was reported by Gahory et al (2022) on coriander plants, Ali et al (2017) on fennel plants, Al-Fraihat et al (2023b) on rosemary Rosmarinus officinalis L. plants, Abdullah et al (2012), on rosemary Rosmarinus officinalis L. plants, Mansour et al (2002) on spearmint and marjoram plants, Al-Fraihat et al (2011) on marjoram plants, El-Gendy et al (2001) on Sweet basil plants and Gharibe et al (2008) on Marjoram (Majorana hortensis) Plant, Darwish et al (2011) on Salvia officinalis plants.…”