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Chapter 3 Orchard

Fruit crops production and management COURSE

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Alemu Molla
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0% found this document useful (0 votes)
141 views21 pages

Chapter 3 Orchard

Fruit crops production and management COURSE

Uploaded by

Alemu Molla
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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CHAPTER - 3

Planning and Establishing Orchards


PLANNING AND ESTABLISHMENT OF ORCHARDS

 Orchard:- is a place where different fruit crops are grown relatively

at large scale
 It is a long-term investment and needs lot of planning and expertise.

 It is a stand of fruit-bearing trees arranged and maintained to yield

crops of maximum size and quality.


 Careless decisions on orchard location, orchard layout, or variety

planted trees are not easily corrected.

 Establishment of a successful fruit orchard requires careful planning

before the first tree is set in the ground


Conti…
Thus, proper planning before planting,

 together with the choice of variety,

 planting system selected, and

 care given to young trees

are of great importance in a successful and profitable fruit

growing enterprise.
Component of orchards
3.1 Site selection

3. 2 Land Preparation

3.3 Laying out the planting field

3.4 Digging Holes for Planting

3.5 Planting Fruit Tree Seedlings


SITE SELECTION
Climate
Climate is the most important factor in site selection.

It determines what type of crops can be grown

Careful assessment of

 minimum and maximum temperatures,

 rainfall level and distribution,

 wind speed and direction

For tropical varieties, frosts or freezes are detrimental.


Conti…
 In tropical areas temperature below the freezing point are critical

 frequency, severity and duration

 Some fruit crops require chilling temperatures for flowering and

 can’t be grown in low land tropics unless there are tropical varieties

(e.g. apple, peach, grape etc.)


 Thus fruit grown under high temperature will result
 Sun burned peel,

 dried flesh,

 reduced fruit size and

 increased granulation
Conti….
 Rainfall quantity and distribution is important to determine whether

irrigation is important or not.


 e.g. Mangos don’t fruit well when flowering coincides with rain

 Light (quality, duration and intensity)


 Long day (passion fruit)

 Short day (strawberry, Pineapple, )

 Day neutral (most fruits like papaya, banana…)

 Strong and frequent wind damage plants and increase water


consumption of the orchard.
 Wind breaks should be established that have fast growing trees
Water

 Water requirement of plant is dependent on soil type and evapo-

transpiration rate.

 Sufficient quantity and acceptable quality water source for irrigation

 The orchard should be located near the water source for spraying,

irrigation and washing of fruits

 Chemical analysis should be made to determine if toxic salts or ions

are present in injurious amounts.


Soil
 Study the chemical and physical property of the soil

 The soil should have good internal drainage

 Orchard crops are deep rooted and require deep soil

 Soil of recent alluvial origin, uniform, and free from injurious salts

 Dig 1-2 m deep holes randomly throughout the orchard site to detect layer

 Take top soil from 30-45 cm depth and analyze pH and micronutrient level

 Test the presence of plant parasitic nematodes

 If there were vegetables or fruits on the land previously grown

 take moist sample containing some plant roots.


Topography:
 Is important from the stand point of
 drainage,

 frost protection,

 orchard layout,

 type of irrigation system and

 erosion and flood control.

 Flat or gently sloping sites are preferred than steep slopes.

 A slope of 5-10% is manageable and it can be mechanized

 Small orchards can be established up to 25% slope

 On slopes 30-35 percent land may be terraced

 At higher elevations (where frosts occur) a gentle slope is preferable since

frost hazard is reduced by downward flow of cold air.


V) Varieties:
 The variety selected must be compatible with the environment
 It should have a reasonable chance of marketing

 A grower should know whether his/her variety is grown for

 local consumption,

 export or

 processing.

 The root stock must be compatible with the soil and water conditions

 The scion variety and rootstock should be tolerant to

 soil-borne fungi and

 virus diseases

 E.g. Sour orange (C. aurantium L.) a rootstock with good tolerance to
gummosis (Phytophtora spp.) is not suitable for areas where tristeza virus is
present.
3. 2 Land Preparation
Land preparation prior to planting of horticultural crops consists of
 clearing,
 terracing (if needed),
 installation of irrigation pipes or ditches (if needed)
 fencing,
 planting of wind breaks, and
 digging planting holes.
Site clearing
 If the land has been recently cropped; level furrows or ridges, slash
down annual weeds and dig out perennial weeds
 If the orchard site has not been cultivated all trees and shrubs with
Terracing and irrigation
 Terracing or ridging should be done on slope to control erosion

 Combination of ridging, terracing and cover crops are

necessary in tropical orchards

 if severe erosion is to be prevented.

 Installation of pipes or digging of ditches is done prior to

planting

 The irrigation system must be considered is conjunction with

layout planning and soil conservation practices


3.3 Laying out the planting field
 Counter planting if the area is sloppy
 Square, triangular, hexagonal, rectangular …planting if the area is flat or
slightly sloppy.

 Prior to ordering and planting trees,

 an orchard plan should be drawn on paper.

 Location and cultivar name of each tree,

 Irrigation fixtures (if applicable)

 Trellises or tree supports

 Orchard roads and paths,

 Packing shed and other permanent features of the orchard.

 This allows to know the number of plants and stakes needed.


Rectangular
Square planting planting system
system

Triangular
Hexagonal planting system
planting system
3.4 Digging Holes for Planting
 Large holes 0.6-1m in both width and depth are dug prior to
planting.
 Pile top and subsoil separately.

 Leave the soil for one month.

 Refill the hole with a mixture of 50 percent top soil and 50


percent well rotted manure.
 In soils where phosphorous is lacking add superphosphate.

 Pile the soil a bit above the ground level.

 When soil settles (after one month) excavate the soil so that it
can accumulate the seedlings
3.5 Planting Fruit Tree Seedlings
 In planting, some of the soil is removed from the previously prepared
hole.
 Planting Bare Root Seedling

 Keep the plants cool and the roots moist and protect them from the sun

 Wrap the seedlings with banana leave, plastic, or some other moisture

conserving material
 After unwrapping, immerse the roots in water for a few hours before

planting
 Trim the root to remove damaged or diseased roots and spread in the hole

 Refill the soil around the roots and firm the soil at regular interval

 Plant the tree at same level as it was growing

 Prune off half to a third of the top shoots to compensate for the lost roots
 Container grown Plants

 remove container grown plants from their pots

 cut off any circling roots

 cover the seedlings to the same depth that they were growing in a

container

 Plants grown in easily decomposing material can be planted as it is

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