Mulberry (Shahtoot) in Krishna–Godavari: Practical Cultivation Guide
Why grow mulberry in Krishna–Godavari?
The Krishna–Godavari (KG) plains give you warm temperatures, extended sunlight and reliable groundwater — all suitable for mulberry (shahtoot). You can grow mulberry either for fresh fruit markets or for leaf production to supply sericulture/rearing units. Choose your enterprise early because field layout, pruning and harvest rhythm differ for fruit versus leaf crops.
Site, soil and climate
- Climate: Mulberry does best in warm, frost‑free areas. Summers in KG are favourable for leaf growth and fruiting; protect young plants from extreme heat with light shade in the first season if necessary.
- Soil: Prefers deep, well‑drained loams with good organic matter. Avoid waterlogged clay pockets. If your land is saline or sodic (patches common in coastal KG tracts), test and reclaim before planting: gypsum and good drainage are needed.
- pH and tests: Aim for pH 6.0–7.5. Do a soil test for nutrients and follow recommendations — blanket doses risk under‑ or over‑fertilising.
Varieties and planting material
Use healthy planting material from a reputable nursery. In KG you will find two commercial directions:
- Fruit types (large, tasty berries) — planted to supply fresh markets or processing.
- Leaf types — selected for high, nutritious leaf yield and used by silk rearers.
If unsure, ask local sericulture or Horticulture extension for recommended clones for your specific use. Prefer hardened, disease‑free saplings 6–10 months old for field planting.
Planting system and spacing
- High density for leafy production: 1.0–1.5 m spacing in rows with 1.0–1.5 m between rows. This gives quick canopy closure and frequent leaf harvests. Typical plants per hectare: 4,000–10,000 depending on spacing.
- Lower density for fruit/stand trees: 2.0–3.0 m spacing or wider (depending on pruning) to allow machinery and easier fruit picking.
- Planting pits: Dig pits 30–45 cm wide and deep. Mix topsoil with well‑rotted farmyard manure or compost (2–4 kg per pit) and a handful of neem cake if available.
- Time of planting: Plant at the start of the monsoon or in winter with assured irrigation. Young plants need frequent watering for 2–3 months until established.
Irrigation and water management
- Establishment: Water every 3–5 days in hot, dry periods for the first 2–3 months. Keep soil uniformly moist but not waterlogged.
- Established trees: Mulberry responds well to regular irrigation. For high leaf production, irrigate weekly in summer. Drip irrigation is highly recommended — it saves water, boosts yield and reduces disease risk.
- Scheduling: Adjust frequency by soil type, tree age and season. Use mulches to conserve moisture and suppress weeds.
Nutrition and fertilizer
Mulberry is a vigorous feeder. Rather than fixed blanket doses, base rates on soil test results and your cropping aim (leaf vs fruit). Practical starting points for young orchard/plot:
- Apply well‑rotted organic matter (compost/FYM) at planting and annually to maintain soil life.
- For intensive leaf production add nitrogen in split applications through the crop season to sustain leaf growth. Apply N in 3–4 splits, with P and K as basal or split depending on soil test.
- Micronutrients (Zn, Fe, B) are commonly deficient in many KG soils — correct based on leaf and soil analysis or foliar sprays when deficiency signs appear.
Training and pruning
- Fruit trees: Train to a 2–3 scaffold open canopy to ease fruit picking and spray coverage. Annual light pruning after harvest helps maintain shape and encourages next season’s shoots.
- Leaf systems: Coppice or pollard systems are common. For multicut leaf production, cut back to set stools and allow regrowth; frequency depends on the cultivar and season (every 6–10 weeks under good conditions).
- Sanitation pruning: Remove dead, diseased or crossing branches promptly. Avoid large wounds; paint large cuts with tree wound dressing if available.
Pest and disease management
Integrated management is practical and cost‑effective for small and medium growers:
- Pests: Watch for aphids, whiteflies, mealybugs, and shoot borers. Monitor regularly — early spotting of aphid populations allows targeted insecticidal soap or neem sprays. For shoot borers, remove and destroy infested shoots; pheromone or light traps can help monitoring at scale.
- Diseases: Powdery mildew and leaf spots appear under humid conditions. Ensure good airflow with correct spacing and pruning. Apply copper or sulphur fungicides as per label instructions if disease pressure rises.
- Cultural controls: Maintain clean orchards, remove alternate hosts, and avoid excess nitrogen without adequate water which can raise pest pressure.
Harvesting — leaves and fruit
- Leaf harvest for sericulture: High‑frequency harvesting is normal. Pluck tender fully expanded leaves; harvest interval in KG can be 7–12 days in the active growth months. Maintain uniform leaf quality; do not mix very old and young leaves when supplying rearing units.
- Fruit harvest for markets: Mulberry fruit ripens quickly. Harvest by hand when fully coloured and soft to touch. Harvest in the cool part of the day to preserve shelf life.
- Post‑harvest handling: Keep fruit shaded, avoid bruising. Cool quickly if you can (shade house, evaporative cooling) and transport to market within a day for best prices. Leaves should be transported fresh and shaded to maintain moisture if supplying rearers.
Selling and marketing
- Know your buyer: For leaves, build relationships with local sericulture rearers or cooperative societies — consistent quality and scheduled supply command better prices. For fruit, contact local wholesale markets, fruit processors or direct retail chains in Vijayawada/Vishakhapatnam areas.
- Value addition: If surplus fruit occurs, consider simple processing: jam, squash, or frozen berries for higher returns. For leaves, small‑scale dehydration for livestock feed is possible but needs an assured market.
- Documentation and grades: Agree clear quality specs (leaf tenderness, absence of pests; fruit colour and maturity) and packing standards with buyers to avoid rejection.
Economics and farm planning (practical points)
- Decide early whether your focus is fruit or leaves — planting density, pruning and marketing differ.
- Start small if you are new and scale up once you establish reliable buyers and get routine for irrigation/fertiliser and pest control.
- Record costs and yields per harvest to understand break‑even intervals. Regular pruning and timely nutrient inputs pay off in leaf systems by increasing the number of harvests per year.
Final tips for KG growers
- Use drip irrigation where possible — water and fertilizer efficiency improve and disease incidence reduces.
- Keep a calendar: dates for pruning, fertilizer splits, and harvests — mulberry responds well to timely operations.
- Leverage local extension and sericulture departments — they can recommend suitable clones and market linkages for your taluka.
Mulberry is a flexible crop: with the right clone, irrigation and market planning, KG growers can produce reliable leaf supplies for silk rearing or supply attractive fresh fruit to local markets. Start with clean planting material, a manageable plot size, and build forward linkages to buyers before expanding.
