different Types of forest nursery

different Types of forest nursery

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  SUBMITTED TO College ofForestry Odisha University of Agriculture & Technology
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  A nursery isa place where plants are propagated and grown to usable size. Nursery is a place where plants are raised for eventual planting out. WHAT IS A NURSERY ?
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  Importance of nursery •For success of artificial regeneration. • For raising forest plantation in adverse condition. • Some species do not produce every year • Some sps. grow very slowly. • For commercial plantation or for fast growing species nursery raised planting material is required. • Planting of nursery grown plants is the surest method of artificial regeneration on poor and barren site. • For introduction of exotics tropical pines ,poplar and eucalyptus. • Plantation of some species when raised by direct sowing is not successful then nursery is required.
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  REQUIREMENTS LOCATION ASPECT TOPOGRAPHY DRAINAGE WATER SOIL VEGETATION PROTECTION LABOUR
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  TYPES OF NURSERY IrrigationDuration Types of planting material Size of seedlings Basing upon
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  • Dry nursery- •Maintained without any irrigation. • EX- Teak, eucalyptus etc. • Wet nursery- • Maintained under irrigated condition throughout the year mainly in dry season. • Ex-mangium,bamboo,jamun
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  Temporary nursery- Maintained forshort period and after completion of work it can be withdrawn from that place. Advantage- Usually constructed in newly cleared sites fairly rich in humus and so, manuring is not required. Minimum trouble with the weeds, destructive insects and diseases. Cheap transport of planting stock without any serious damage or shock. Disadvantage- Comparatively costly. Difficult to supervise. Proper supervision is not possible as it is made out of away places. Due to lack of irrigation facility, the growth of seedlings is, usually slow and heavy mortality.
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  • Permanent nursery- •Maintained for long period and located in that areas having good accessibility and good irrigation facility. Advantages • Duration of service life is long and production cost is reasonable. • Meet the requirement of more ranges. • Supervision cost is low and can be easily supervised. • Easy transport of nursery stocks due to nearness of roads. • Plants are raised year after year for a long time on same site. Disadvantage • Transportation of seedlings is difficult and costlier. • Establishment cost is high. • Manuring of beds annually & intensive soil working is essential. • Requires large labour forces through out the year which is difficult to available in agricultural seasons.
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  • Seedling nursery- •where seedlings are raised for transplanting. • Eg- chakunda, sissoo, jamun,neem • Transplant nursery- • A nursery which has only transplant beds in which seedlings are transplanted in preparation for forest planting. Eg- chandan, mangium,bamboo
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  Seedling nursery Transplant nursery
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  • Basing uponplanting material • Barren nursery- • naked rooted plants uprooted and transplanted in the planting site. • Eg. Teak ,sissoo ,gambhar
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  • Containerised nursery- •raised in container like root trainer and polypot • Eg- Acacia mangium, Samanea saman, Azadirechta indica, Emblica officinalis etc. • Vegetatively propagated nursery- • nursery raised from different vegetative plant parts. • Eg. Eucalyptus, bamboo
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  Types of bed •Seedbed •Transplanted bed •Containerised bed Use of bed •Raised bed •Sunken bed •Level bed Level of bed
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  NURSERY IN HIGHLAND AREAS In high land area sunken beds are prefered in nursery. No boundary support is required. Depth of bed is 10-30cm. It is done in water scarcity areas.
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  Nursery in lowland area • In low land area raised beds are prefered in nursery. • It is 10-15 cm above ground level with the support of brick stone, bamoos etc that prevent edges of bed from crumbling erosion during rain. • It is practised in high rainfall area to prevent the plant from water logging condition.
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  CONCLUSION • Artificial plantationassures quality of stock and plant percentage is more than natural forest. • Artificial plantation is the one and only options to restore and enrich the present degraded forest.
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  Reference • Nursery andplantation practices in forestry by Vinod Kumar • www.wikipidia.org