Green onion is a shallow rooted crop that requires heavy fertilizing with strong drought resistance and weak moisture resistance.

Since there is risk of seed stalk development if nitrogen is insufficient, nitrogen fertilizer must be maintained appropriately.

 

Large Green Onion Fertilization Point

 

Basal application of fertilizer – Excessive fertilization of poorly decomposed compost or organic fertilizer is the main cause of nutrient imbalance and salt accumulation.

Gas stress caused by premature organic matter is fatal to crops.

Manage to ensure consistent supply of fertilizer.

⇒ Soil Application with CERES (4-2-1+70% organic matter) 1000KG/1ha

⇒ Soil Application with ONE PRO 952 900KG/1ha

⇒ Soil Application with NUTRI POWER 100KG/1ha

 

Additional Fertilizer – Sufficient provision of nutrients along with earthing up.

A stable supply of calcium is absolutely necessary for quality control.

Maintaining the vitality of the roots is key to long-term cultivation.

⇒ Irrigation with THE ROOTS 20L/1ha after planting for the plant to take root.

⇒ 1st additional fertilization 30-40 days after planting – Soil Application with NK CALMA 300KG/1ha.

⇒ 2nd additional fertilization roughly 30 days later, at the rate at which the stem grows -    Soil Application with NK CALMA 300KG/1ha.

⇒ 3rd additional fertilization roughly 30 days later, at the rate at which the stem grows -    Soil Application with NK CALMA 300KG/1ha.

 

 

 

 

 

 

Physiological Disorders and Problems that Occur During Large Green Onion Cultivation

 

1. Large green onion seedling – Sprout comes up 7-10 days after sowing

⇒ Irrigation with TOP PLANT 19-19-19 1000x after sprout comes out.

 

2. Large green onion leaf tip burn prevention and recovery – Calcium deficiency disorder

⇒ Stable supply of calcium – Irrigation with CALSTAR GOLD 30L/1ha + foliar spraying POLYCAB 1000x.

 

3. Prevention and recovery from leaf bending phenomenon – Overgrowth due to excessive nitrogen or root that cannot handle the leaf development is the cause

⇒ Foliar spraying DOUBLE PK 250x

⇒ Root aging and dryness and wetness damage recovery - Irrigation with THE ROOTS 20L/1ha

 

4. Downy mildew prevention and treatment – If there is overgrowth due to excessive nitrogen, risk of onset of disease increases

⇒ Foliar spraying with SSR ALL or MOLD OUT 1000x + CAP2018 500x

 

5. Leaf blight prevention and treatment – Manage so that plant vigor is strong

⇒ Foliar spraying with SSR ALL or MOLD OUT 1000x + SEAWEED F 500x

 

6. Rust prevention and treatment – Manage so that manurial deficiency does not occur and be

especially careful about calcium deficiency

⇒ Foliar spraying with SSR ALL or MOLD OUT 1000x + POLY CAB 1000x

 

7. Soft rot, white rot prevention and treatment – Infectious disease of the soil in repeated cultivation fields

 ⇒ Irrigation spraying with SSR SOIL 15L/1ha

 

8. Pest control for liriomyze chinensis, etc.

⇒ Foliar spraying with SSR-I or GGB GOLD 1000x and soil application with KILL KING 45KG/1ha