Bean Fertilization and Spraying Program

Irrigation Method: Flooding, for a one-acre area.

Land Preparation:

• Ensure the land is well leveled before planting, as beans are highly susceptible to root rot.

Pre-Planting Service:

• 10 meters of organic manure or compost
• 1 bag of ammonium sulfate (50 kg)
• 4 bags of super phosphate (50 kg each)
• 1 bag of agricultural sulfur (50 kg)

First Month Fertilization:

• 2 bags of ammonium sulfate (50 kg each)
• 10 kg of phosphoric acid or monoammonium phosphate

Spraying:

• 0.5 liters of Green Growth + micronutrient mix

Second Month Fertilization:

• 1 bag of ammonium sulfate (50 kg)
• 1 bag of ammonium nitrate (50 kg)
• 20 kg of phosphoric acid or monoammonium phosphate
• 1 bag of magnesium sulfate (25 kg)

Spraying:

• Amino Force at the beginning of the second month
• Phosphorus with potassium mid-second month
• Calcium boron at the end of the second month

Beginning of the Third Month:

• 1 bag of ammonium sulfate (50 kg)
• 2 bags of potassium sulfate (25 kg each)

Spraying:

• Potassium citrate at the beginning of the third month
• Potassium citrate mid-third month

Major Fungal Diseases Affecting Beans:

1. Rust
2. Ascochyta
3. Anthracnose
4. Alternaria leaf spot

Key Root Rots Affecting Beans:

1. Rhizoctonia
2. Pythium
3. Fusarium

Main Causes of Root Rot:

1. Excess water
2. High soil salinity
3. Excess nitrogen fertilization (urea, nitrate, ammonium sulfate)

Seed Treatment:

• It’s essential to treat seeds with fungicides before planting.

Major Insects Affecting Beans:

1. Bean Fly: Highly destructive, especially after last season’s crop failure.
2. Whitefly: Rapidly spreads and is a primary cause of viral infections.
3. Aphids: Slow to spread but causes honeydew and can transmit viruses.
4. Mites: Increase with high temperatures and dust; use abamectin with any pesticide applied.
5. Nematodes: Can devastate bean crops, especially in sandy soils, particularly after peanuts.