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Mulberry (Shahtoot) Farming in Mizoram: Practical Step-by-Step Guide

A hands-on guide to growing mulberry (shahtoot) in Mizoram’s hills. Covers soil selection, propagation, planting, management, pest control and harvesting with step-by-step actions.

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Mulberry (Shahtoot) Farming in Mizoram: Practical Step-by-Step Guide

Why mulberry in Mizoram?

Mizoram’s climate—cooler hill temperatures, high humidity and reliable monsoon—matches many mulberry requirements. Mulberry is the primary food crop for silkworms, but it also serves as a fast-growing fodder and fruit tree for smallholders. With the right variety and management, mulberry can give multiple leaf harvests per year and fit well into contour farming and agroforestry on hill slopes.

Site and soil requirements

Choose a site with the following practical features:

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  • Elevation and slope: Avoid steep, erosion-prone spots. Gentle to moderate slopes with terraces or contour bunds are best to reduce runoff and soil loss.
  • Soil type: Mulberry grows on a range of soils but performs best on well-drained loamy soils. Heavy waterlogged soils lead to root rot; shallow, stony soils reduce growth.
  • Soil reaction: Mulberry accepts slightly acidic to neutral pH. If soil is strongly acidic, apply lime based on soil test recommendations to bring pH toward neutral.
  • Water availability: Mulberry needs moisture especially during establishment and for maximum leaf flushes. Ensure either reliable rainfall, a way to conserve moisture (mulch, terraces) or supplementary irrigation.

Varieties and planting material

Choose a variety adapted to Mizoram’s conditions and to your end use (sericulture vs. fodder vs. fruit). Local agricultural or sericulture extension offices can recommend proven varieties. You can propagate mulberry by:

  • Hardwood cuttings: Common, reliable method. Use healthy 30–40 cm cuttings with several nodes, planted at an angle or upright in well-prepared beds.
  • Suckers and root cuttings: Useful for clonal reproduction from mature plants.
  • Nursery-grown seedlings: Raised in polybags from seed; takes longer to give full production but is useful where cuttings are unavailable.

Nursery and planting steps (step-by-step)

  • Prepare a nursery bed or polybag nursery with a well-draining mix (topsoil + compost + sand). Avoid heavy soil mixes that retain water.
  • Treat cuttings by planting immediately after collection. Maintain a shaded, moist environment for rooting for 6–8 weeks. Use wooden sticks or a temporary shade net if sun is strong.
  • Harden off rooted cuttings by reducing shade over 1–2 weeks to prepare for field conditions.
  • Land preparation: Plough or dig planting pits on terraces. Enrich pits with well-rotted compost or farmyard manure. For slopes, prepare contour trenches or vegetative barriers to reduce erosion.
  • Planting time: In Mizoram, planting at the start of the rainy season gives best survival. In established irrigated blocks, you can plant earlier with irrigation support.
  • Spacing: Common spacings are 2 m x 2 m or 2.5 m x 2.5 m for a permanent block; closer spacing can be used for newer high-density planting aimed at intensive leaf production. Wider spacing is used when intercropping with seasonal crops.
  • Planting depth: Set the root collar at soil level. Backfill gently and firm the soil to avoid air pockets.
  • Initial watering: Water immediately after planting and keep the plant moist through establishment—2–3 weeks are critical for cuttings and seedlings.

Fertilizer and soil management

Mulberry responds well to organic matter. Practical recommendations:

  • Incorporate well-rotted farmyard manure or compost into planting pits at planting time.
  • Top dress with organic compost or composted manure seasonally. If using chemical fertilizers, follow local extension recommendations or soil test results. Nitrogen is the nutrient that most affects leaf growth; apply in split doses after each coppicing or during active flushes.
  • Mulch with locally available biomass (straw, leaf litter) to conserve moisture, suppress weeds and add organic matter as it breaks down.

Irrigation and moisture conservation

Even in high-rainfall Mizoram, young plants benefit from supplemental moisture. Practical moisture measures:

  • Mulching around the base to reduce evaporation and maintain soil moisture.
  • Contour bunds and terraces to slow water flow and increase infiltration on slopes.
  • Drip or basin irrigation where available—apply during dry spells and between major leaf harvests to encourage strong regrowth.

Pruning, cutting cycles and management for leaf production

Mulberry is commonly managed by regular coppicing or pruning to encourage tender leaf regrowth for silkworms or fodder. Practical steps:

  • First formative pruning: Remove weak shoots and shape the plant after establishment to develop 3–4 strong stems per plant.
  • Coppicing: Cut plants back to a stubble height (often 30–60 cm depending on local practice) to trigger vigorous regrowth. Timing depends on the variety and desired leaf quality—early dry season or post-monsoon cuts are typical in many hill areas.
  • Frequency: Mulberry can give multiple harvests a year where climate and water permit. Schedule cuts based on leaf regrowth and quality; do not overcut before plants have regained vigor.
  • Thinning: Remove older, shaded branches to keep canopy open and improve air movement, reducing disease pressure.

Pest and disease management

Keep a practical, observation-driven approach:

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  • Common problems: Leaf-eating caterpillars and other chewing insects, aphids, powdery mildew and root rots in waterlogged soil.
  • Monitoring: Inspect leaves regularly—especially the underside—for eggs and early-stage larvae. Check for abnormal wilting or yellowing that may indicate root issues.
  • Non-chemical control: Handpicking of small caterpillar populations, encouraging natural enemies (birds, predatory insects), and maintaining plant vigor through balanced nutrition.
  • Chemical options: Use targeted, registered pesticides only when thresholds are exceeded and follow label directions. Prefer selective products and avoid sprays when silkworms are to be fed unless recommended by sericulture specialists.
  • Sanitation: Remove and burn severely infested or diseased plant material away from the field to reduce spread.

Harvesting and leaf handling

For sericulture, leaf quality and freshness matter. General handling tips:

  • Harvest early in the morning when leaves are turgid and cool; transport quickly to the rearing house to maintain freshness.
  • Use clean knives or shears and avoid damaging growing points you want to keep for regrowth if you are not coppicing.
  • Sort out diseased or heavily soiled leaves—only feed healthy leaves to silkworms.

Intercropping, agroforestry and soil conservation

Mulberry fits well into smallholder systems:

  • Intercrop with short-duration vegetables or legumes in the early years before canopy closes. Legumes help add nitrogen and organic matter when rotated or used as green manure.
  • On slopes, use mulberry rows as living contour barriers combined with grasses for erosion control.

Record-keeping and common pitfalls

Keep simple records of planting dates, pruning/coppicing dates, fertilizer applications, pest outbreaks and harvest weights to learn what works on your land. Watch out for these common mistakes:

  • Planting in poorly drained spots leading to root diseases.
  • Neglecting soil fertility—mulberry responds quickly to organic inputs and will suffer on depleted soils.
  • Overuse of broad-spectrum insecticides that kill beneficial insects and make pest control harder in the long run.

Where to get support in Mizoram

Contact local agriculture or sericulture extension officers for variety recommendations, certified planting material and support with pest and disease identification. Local farmer groups and cooperatives can also help with shared tools, nursery material and collective marketing where leaves are sold to reelers or for fodder.

Final practical checklist

  • Pick a well-drained site and prepare terraces on slopes.
  • Start strong: use healthy cuttings or nursery-grown plants and enrich planting pits with compost.
  • Mulch and conserve soil moisture, and plan your coppicing schedule to match local climate.
  • Monitor pests early, use cultural controls, and rely on extensions for chemical choices.
  • Keep simple records and adapt spacing/variety choices to your market (silkworms, fodder or fruit).

With basic soil care, timely pruning and attention to pests, mulberry can be a reliable component of smallholder farming in Mizoram—supporting sericulture, livestock feed and on-farm income.

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Ranjeet Natarajan
Ranjeet Natarajan

Contributing writer at Agriculture Novel — telling the stories that sustain us.

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