How to Grow Mulberry (Shahtoot) on the Deccan Plateau
Introduction
Mulberry (shahtoot) is a hardy fruit tree well suited to the semi-arid to sub-humid conditions of the Deccan Plateau. It can be grown for fresh fruit, processed products, and fodder. This guide focuses on practical, field-tested steps for smallholders and commercial growers on the plateau: choosing varieties, land preparation, planting, irrigation, nutrition, pruning, pest management and harvest.
Why mulberry suits the Deccan Plateau
- Adaptable to a range of soils from deep red soils to black cotton soils if drainage is adequate.
- Tolerates seasonal drought once established but responds well to supplemental irrigation.
- Relatively low input compared with other fruit crops and fast return on investment with early-bearing varieties.
Variety selection
Choose varieties adapted to local conditions and market preferences. On the Deccan Plateau consider:
- Black-fruited types (commercial fresh market): high juice and colour; pick varieties that fruit early if market demands off-season supply.
- White/pale-fruited types (table and traditional markets): often preferred locally for flavor and texture.
- Dual-purpose varieties: chosen by farmers who want both fruit and leaf fodder.
Check with local agriculture universities or extension services for named cultivars proven in your district; performance can vary with microclimate and soil.
Site and soil requirements
- Altitude and climate: grows from low elevations up to plateau elevations; tolerates hot summers and cool winters typical of the Deccan Plateau.
- Soil: prefers deep, well-drained soils with good moisture-holding capacity. Avoid waterlogged sites; mulberry roots are sensitive to poor aeration.
- pH: neutral to slightly acidic (pH 6–7.5) is acceptable; adjust very acidic soils with lime based on soil test.
Land preparation
- Clear weeds and perennials. Deep ploughing or ripping to 30–40 cm helps root penetration in compact soils.
- Establish drainage channels on heavier soils to avoid ponding in monsoon months.
- Apply farmyard manure or compost at 10–20 tonnes/ha in the planting row or pits to improve soil structure and early growth.
Propagation and planting
Mulberry can be raised from seed, hardwood cuttings, or vegetative grafting. For predictable quality choose vegetative material (cuttings or grafts).
- Cuttings: Hardwood cuttings (30–40 cm long) planted in the rainy season root reliably—cheaper for establishing hedgerows or fodder banks.
- Grafts/budded plants: Provide true-to-type fruiting and are preferred for orchards aimed at fruit markets.
- Spacing: For orchard trees, 6–8 m x 6–8 m spacing is common. For intensive or semi-dwarf systems, 4–5 m spacing can be used with careful pruning.
- Plant at the start of monsoon for best establishment, or during the cool season if irrigation is available.
Irrigation and water management
Mulberry prefers regular moisture especially during establishment and fruit development. On the Deccan Plateau water is the limiting input—target efficient systems.
- Young trees: Water regularly for the first two years to develop a deep root system. Apply 20–30 liters per tree per irrigation depending on soil and tree size.
- Mature trees: Irrigate based on soil moisture and phenology; increase water during flowering and fruit fill. Typical schedules in irrigated orchards are 8–12 irrigations during dry months with drip or micro-sprinklers.
- Drip irrigation: Most efficient—reduces disease risk and saves water. Place drippers near the active root zone and mulch to conserve moisture.
- Rainy season: Avoid over-irrigating; maintain drainage to prevent root suffocation.
Nutrition and fertilization
Base fertilizer rates on a soil test. General starter recommendations for bearing trees (per tree, annually) can be adjusted by tree size and yield:
- Nitrogen is most important: split applications—half at pre-monsoon/panol leaf flush and half after harvest.
- Apply phosphorus and potassium according to soil test; mulberry responds to K for fruit quality.
- Use organic manures and compost annually to sustain soil organic matter—particularly useful in Deccan soils that are low in organic carbon.
Pruning and training
Pruning shapes the tree, improves light penetration and air circulation, and stimulates productive growth.
- Initial training: Establish 3–5 scaffold branches at 60–90 cm above ground for an open centre or modified leader system.
- Annual pruning: Remove dead, crossing and water-sprout growth. Shorten shoots to encourage lateral fruiting spurs.
- Coppicing: Mulberry responds well to coppicing for leaf production—commonly used where leaves are harvested for fodder or silkworms.
- Timing: Prune during dormancy (cool dry months) or immediately after harvest for multi-cropping systems. Avoid heavy pruning just before flowering.
Pest and disease management
Mulberry pests and diseases are generally manageable with good sanitation and monitoring.
- Pests: Common pests include aphids, mealybugs, and fruit flies. Monitor regularly; release natural enemies (ladybirds, lacewings) where possible and use targeted insecticides if economic thresholds are crossed.
- Diseases: Powdery mildew and leaf spot can occur in humid conditions; ensure good air flow through pruning and avoid overhead irrigation that wets foliage. Remove and burn infected debris.
- Integrated Pest Management (IPM): Use pheromone traps for fruit flies, sticky traps for monitoring, and adopt biopesticides (Bt, neem-based products) as first options.
Intercropping and farm integration
Mulberry can be integrated with other crops or livestock systems to improve farm income and resource use.
- Short-season crops (legumes, vegetables) in the early years before canopy closure.
- Legume cover crops between rows to fix N and reduce erosion; mow and incorporate as green manure.
- Use pruned foliage as high-quality livestock fodder or feed for small ruminants; mulberry leaves are highly palatable and nutrient-dense.
Harvesting and post-harvest handling
- Fruits are perishable—handle gently. Harvest by hand when fully coloured but firm. Multiple pickings are needed during the season.
- For fresh market, cool quickly after harvest. Use shaded transport and avoid stacking heavy loads which crush fruit.
- Consider value-add: jams, syrups, and dried fruit extend shelf life and reduce waste if market access for fresh berries is limited.
Marketing and economics
Know your market before selecting variety and planting scale. Fresh fruit demands fast market access or cold chain; processed products allow aggregation and longer storage. Smallholders often establish a mixed-use approach—selling fresh during peak and processing surplus.
Common problems and troubleshooting
- Poor establishment: Check planting depth, soil compaction and watering frequency; young roots need regular moisture but not waterlogging.
- Low yields: Reassess pruning practice, nutrient supply (especially N and K), and pollination conditions. Some varieties need cross-pollination for best fruit set.
- High pest pressure: Increase monitoring, use biological controls and maintain tree vigour—stressed trees are more susceptible.
Practical checklist for the first year
- Choose site and variety suited to your market and water availability.
- Prepare land, incorporate compost, and dig pits if planting grafted plants or place cuttings directly into rows in rainy season.
- Install drip irrigation or plan watering schedule before planting.
- Mulch around the tree to conserve moisture and suppress weeds.
- Monitor for pests and disease monthly; act early with cultural or biological measures.
Conclusion
Mulberry (shahtoot) is a resilient and versatile crop for the Deccan Plateau when matched with the right variety, good water management and sound orchard practices. Start small, test a few varieties, and scale up as you learn local performance and market preferences. Local extension services and farmer groups are valuable sources of nursery material and practical advice adapted to your microclimate.