Growing Mulberry (Shahtoot) in Tanjore — Complete Guide
Why grow mulberry (shahtoot) in Tanjore?
Tanjore (Thanjavur) district has the warm temperatures, long sunshine hours and irrigation options that mulberry thrives on. Mulberry is versatile — you can grow it for fruit (fresh or processed), for fodder, or for raising silkworms. The crop fits well into smallholder systems where you can use canal water, borewells or farm ponds to maintain steady soil moisture.
Choosing the right variety
Select varieties based on your end use and available care:
- Fruit varieties: Look for types selected for large, sweet berries and extended fruiting. These are suited to direct-marketing and processing.
- Sericulture varieties: Mulberry clones bred for leaf quality and consistent leaf yield suit silkworm rearing. These are often higher-density plantings and managed for leaf production rather than fruit.
- Dual-purpose: Some cultivars give decent fruit and good leaf for fodder/sericulture. Talk to local nurseries and the regional sericulture department for clone recommendations suited to Tanjore’s soils and pests.
Site selection and soil
Mulberry is adaptable but does best on deep, well-drained soils with good moisture-holding capacity. In Tanjore choose sites with access to reliable irrigation and good sun exposure (at least 6–8 hours of direct sun).
- Soil pH: tolerant of slightly acidic to slightly alkaline soils; correct extremes with lime or organic matter based on soil testing.
- Avoid waterlogged soils; mulberry roots need aeration.
- Planting on raised beds or mounds can help where drainage is poor.
Propagation and nursery management
Mulberry is commonly propagated by stem cuttings or saplings from nursery beds:
- Cuttings: Hardwood cuttings (7–12 mm diameter) with two to three nodes root reliably. Treat cuttings with a fungicide or brightening dip if required and plant in well-drained medium.
- Nursery saplings: Use poly-bags or root trainers filled with a mix of topsoil, compost and sand for good drainage. Keep shade for young plants and harden them for 2–3 weeks before transplanting.
Planting layout and spacing
Spacing depends on purpose:
- Fruit orchards: 3–5 m between trees and between rows gives room for a spreading canopy and mechanised or manual harvesting.
- Sericulture/leaf production: Higher densities (for example around 1.5–2 m spacing or closer in bush systems) are used to maximise leaf area and frequent pruning cycles.
- Intercropping: In the first 2–3 years, inter-row cropping with short-season vegetables or legumes can provide income, but avoid deep-rooted or shade-creating crops that would compete strongly with mulberry.
Planting season and method
In Tanjore, planting at the start of the rainy season or during the cooler months helps establishment. If irrigation is available, planting can be done year-round with proper care.
- Dig a hole slightly larger than the root ball. Mix topsoil with well-rotted farmyard manure or compost.
- Set the sapling so the root collar is at soil level, firm the soil gently and irrigate immediately.
- Apply a light mulch (straw, dry leaves) to conserve moisture and suppress weeds.
Irrigation and moisture management
Mulberry responds well to regular moisture—particularly during active shoot growth and fruiting. In Tanjore use available irrigation to keep soil evenly moist but not waterlogged.
- Young plants need frequent watering until established; reduce frequency as the root system develops but keep steady moisture during dry spells.
- For orchards, drip irrigation is cost-effective and conserves water while maintaining root-zone moisture. For sericulture systems, more frequent, shallow irrigations help keep leaves turgid.
- Mulching reduces evaporation and moderates soil temperature.
Nutrient management
Base fertiliser decisions on a soil test whenever possible. General guidance:
- Use balanced N-P-K fertilisers and supplement with well-decomposed compost or farmyard manure annually to maintain organic matter.
- Apply nitrogen in split doses to support flushes of vegetative growth — important for both leaf and fruit production.
- Micronutrients like zinc and iron can be limiting in some Indian soils; leaf analysis helps identify deficiencies. Foliar sprays correct short-term deficiencies quickly.
Pruning and canopy management
Pruning shapes trees, improves air flow, and stimulates new shoots:
- Young trees: Formative pruning in the first 2–3 years establishes a strong scaffold and desired height for easy harvesting.
- Fruit trees: Open-centre or modified leader systems make fruiting branches accessible and increase light into the canopy.
- Leaf/sericulture systems: Coppicing or pollarding at set intervals encourages dense, vigorous regrowth and repeated leaf harvests. Maintain sanitation when cutting to reduce disease risk.
Pest and disease management
Common problems include caterpillars, mealybugs, scale, and fungal leaf spots. Integrated Pest Management (IPM) works best:
- Monitor regularly and remove heavily infested leaves or shoots.
- Encourage natural enemies — parasitoids and predators — by avoiding blanket insecticide use.
- Use targeted controls when thresholds are exceeded: neem-based products, approved insecticides, or biologicals as recommended by the local extension service.
- For fungal issues, ensure good air flow through pruning, avoid overhead watering in the evening, and apply copper or other fungicides if necessary and permitted.
Harvesting and post-harvest handling
Mulberry fruit is perishable. Pick when fully coloured and slightly soft, with a sweet taste. For fresh market sales:
- Harvest early morning to reduce heat stress on fruit.
- Handle gently to avoid bruising; cooling soon after harvest extends shelf life.
- For processing, coordinate harvest to deliver fruit in bulk to reduce handling costs.
Marketing and end uses
Decide your market before planting. Options include:
- Fresh local markets or roadside sales — clean, ripe berries fetch best prices.
- Processing into jams, juices or dried fruit — consider simple processing units or cooperatives to add value.
- Leaf sales for livestock fodder or sericulture — requires frequent harvest and quality control.
Economics and labour
Mulberry is labour-intensive around planting, pruning and harvest. Costs and returns depend on planting density, variety, irrigation investment and market channels. Start small if new to the crop, test a few varieties, and use block planting to simplify management.
Practical tips for Tanjore growers
- Talk to nearby sericulture or horticulture stations for clone recommendations and pest reports tailored to Tanjore microclimates.
- Invest in a simple drip system and mulching to save water during the hot season.
- Keep a calendar for pruning and leaf harvest cycles — consistent timing improves regrowth and fruit set.
- Form farmer groups to aggregate fruit or leaves for processing and to negotiate better input prices and technical support.
Final words
Mulberry (shahtoot) is forgiving and can fit different farming objectives in Tanjore — fruit, leaf or silk. Success depends on choosing the right variety, controlling soil moisture, timely pruning and watching pests closely. Start with a managed trial block, learn local pest patterns and market preferences, then scale up using what works on your farm.