Beans — Package of Practices
A warm-season legume in bush and pole forms — give it steady moisture and early support, then pick the tender pods every few days.
Overview
Beans are a warm-season legume grown for tender green pods, available as compact bush types and climbing pole types. They fix nitrogen and give quick, repeated pickings.
Steady warmth, even moisture and good support for pole types are the keys to a heavy, clean pod set.
Climate & season
Beans need warm, frost-free weather (about 16–24 °C).
- Both cold and very high heat cause flowers to drop.
- Grow in the milder parts of the year.
- Pole types crop over a longer, warm season.
Soil & land preparation
Best on a fertile, well-drained loam with good organic matter, at a pH of 5.5–6.8.
- Work to a fine tilth and form rows or ridges.
- Mix in 15–25 t/ha of farmyard manure.
- Very sensitive to waterlogging — ensure free drainage.
- Rotate with non-legumes.
Choosing a type & seed
Decide between bush types (open field, one main flush) and pole types (trellised, longer picking). No specific cultivar is named here.
Seed rate
- Bush: 75–100 kg/ha.
- Pole: 25–35 kg/ha.
- Germinates within a week in warm, moist soil.
Seed treatment
- A Rhizobium seed treatment improves nodulation.
- A fungicidal treatment guards against seed and seedling rots.
Sowing & spacing
- Sow once frost danger is over and the soil has warmed.
- Bush: space 30–45 cm × 10–15 cm.
- Pole: space 60–90 cm × 15–20 cm.
- Set stakes, a trellis or wires for pole types at sowing.
- Earth up lightly around bush types for anchorage.
Nutrient management
As a legume the crop fixes part of its nitrogen, so only a modest starter dose is given; excess nitrogen gives leafy plants with few pods. Phosphorus and potash support flowering and pods.
| Input | Dose | Notes |
|---|---|---|
| Farmyard manure | 15–25 t/ha | Well-rotted, basal |
| Nitrogen (N) | 20–25 kg/ha | Starter only |
| Phosphorus (P₂O₅) key | 60–80 kg/ha | Flowering & pod set |
| Potash (K₂O) | 40–50 kg/ha | Basal |
Water management
Keep soil moisture steady, especially from flowering through pod set, when stress causes heavy flower drop.
- Irrigate at regular intervals on light soils.
- Avoid both drying out and waterlogging.
- Drip, where available, gives even moisture and keeps foliage dry, lowering disease.
Intercultural & weed management
- Keep the crop weed-free early with shallow weeding; do not disturb surface roots.
- Train pole types onto their support so vines climb cleanly.
- Earth up bush types lightly for better anchorage.
Plant protection
| Problem | Type | Watch for | Manage |
|---|---|---|---|
| Anthracnose | Disease | Dark sunken spots on pods and stems | Clean seed, rotation, recommended fungicide |
| Rust | Disease | Reddish-brown pustules on leaves | Spacing for airflow, fungicide if severe |
| Bean common mosaic | Virus | Mottled, puckered leaves; stunting | Use healthy seed, control aphids, rogue out affected plants |
| Pod borer | Pest | Holes in pods, caterpillar inside | Monitor, handpick, Bt or recommended insecticide at threshold |
| Aphids & whitefly | Pest | Sticky honeydew; they also spread virus | Yellow traps, neem, control early to check virus |
| Bean fly | Pest | Wilting young seedlings, tunnelled stems | Treated seed, healthy vigorous start |
- Sow healthy, disease-free, treated seed.
- Rotate with non-legumes and space for airflow.
- Remove virus-affected plants promptly; control aphids and whitefly early.
- Scout weekly; spray only at the threshold, following the label.
Use crop-protection inputs responsibly
Read the label, use the recommended dose, wear protective gear while spraying, and strictly observe the pre-harvest (waiting) interval before picking — on crops harvested repeatedly this matters at every picking. Prefer cultural and biological methods first and spray only when monitoring shows it is needed.
Harvesting & yield
Pick pods young and tender, while they snap cleanly and before the seeds bulge — generally from 45–60 days in bush types.
- Harvest every two to three days to keep plants productive.
- Bush crops yield about 6–10 t/ha of green pods.
- Well-managed pole crops, picked over a longer season, yield considerably more.
Beans — Package of Practices
A warm-season legume in bush and pole forms — give it steady moisture and early support, then pick the tender pods every few days.
Overview
Beans are a warm-season legume grown for tender green pods, available as compact bush types and climbing pole types. They fix nitrogen and give quick, repeated pickings.
Steady warmth, even moisture and good support for pole types are the keys to a heavy, clean pod set.
Climate & season
Beans need warm, frost-free weather (about 16–24 °C).
- Both cold and very high heat cause flowers to drop.
- Grow in the milder parts of the year.
- Pole types crop over a longer, warm season.
Soil & land preparation
Best on a fertile, well-drained loam with good organic matter, at a pH of 5.5–6.8.
- Work to a fine tilth and form rows or ridges.
- Mix in 15–25 t/ha of farmyard manure.
- Very sensitive to waterlogging — ensure free drainage.
- Rotate with non-legumes.
Choosing a type & seed
Decide between bush types (open field, one main flush) and pole types (trellised, longer picking). No specific cultivar is named here.
Seed rate
- Bush: 75–100 kg/ha.
- Pole: 25–35 kg/ha.
- Germinates within a week in warm, moist soil.
Seed treatment
- A Rhizobium seed treatment improves nodulation.
- A fungicidal treatment guards against seed and seedling rots.
Sowing & spacing
- Sow once frost danger is over and the soil has warmed.
- Bush: space 30–45 cm × 10–15 cm.
- Pole: space 60–90 cm × 15–20 cm.
- Set stakes, a trellis or wires for pole types at sowing.
- Earth up lightly around bush types for anchorage.
Nutrient management
As a legume the crop fixes part of its nitrogen, so only a modest starter dose is given; excess nitrogen gives leafy plants with few pods. Phosphorus and potash support flowering and pods.
| Input | Dose | Notes |
|---|---|---|
| Farmyard manure | 15–25 t/ha | Well-rotted, basal |
| Nitrogen (N) | 20–25 kg/ha | Starter only |
| Phosphorus (P₂O₅) key | 60–80 kg/ha | Flowering & pod set |
| Potash (K₂O) | 40–50 kg/ha | Basal |
Water management
Keep soil moisture steady, especially from flowering through pod set, when stress causes heavy flower drop.
- Irrigate at regular intervals on light soils.
- Avoid both drying out and waterlogging.
- Drip, where available, gives even moisture and keeps foliage dry, lowering disease.
Intercultural & weed management
- Keep the crop weed-free early with shallow weeding; do not disturb surface roots.
- Train pole types onto their support so vines climb cleanly.
- Earth up bush types lightly for better anchorage.
Plant protection
| Problem | Type | Watch for | Manage |
|---|---|---|---|
| Anthracnose | Disease | Dark sunken spots on pods and stems | Clean seed, rotation, recommended fungicide |
| Rust | Disease | Reddish-brown pustules on leaves | Spacing for airflow, fungicide if severe |
| Bean common mosaic | Virus | Mottled, puckered leaves; stunting | Use healthy seed, control aphids, rogue out affected plants |
| Pod borer | Pest | Holes in pods, caterpillar inside | Monitor, handpick, Bt or recommended insecticide at threshold |
| Aphids & whitefly | Pest | Sticky honeydew; they also spread virus | Yellow traps, neem, control early to check virus |
| Bean fly | Pest | Wilting young seedlings, tunnelled stems | Treated seed, healthy vigorous start |
- Sow healthy, disease-free, treated seed.
- Rotate with non-legumes and space for airflow.
- Remove virus-affected plants promptly; control aphids and whitefly early.
- Scout weekly; spray only at the threshold, following the label.
Use crop-protection inputs responsibly
Read the label, use the recommended dose, wear protective gear while spraying, and strictly observe the pre-harvest (waiting) interval before picking — on crops harvested repeatedly this matters at every picking. Prefer cultural and biological methods first and spray only when monitoring shows it is needed.
Harvesting & yield
Pick pods young and tender, while they snap cleanly and before the seeds bulge — generally from 45–60 days in bush types.
- Harvest every two to three days to keep plants productive.
- Bush crops yield about 6–10 t/ha of green pods.
- Well-managed pole crops, picked over a longer season, yield considerably more.