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Tree crop yield tables

These tables shows the conservatively estimated crop yield and local cash value that will accrue to one typical participating farmer over a 3 year period for the selected species. They are based on a current local market price of 150 Kenyan Shillings (~£1) per Kg of fresh moringa leaf; local 3-year casuarina unit pole value of 2,000 Ksh (£14); the production volumes that we have recorded in the Women's Forest Project and over previous years and assumes that each farmer plants 333 trees per annum in the following proportions.

Moringa 40%
Casuarina 25%
Cashew 10%
Neem 10%
Arborea 10%
Mango 5%

Moringa - annual cash yield £81

  Year 1
 Year 2
 Year 3
 
 Typical yield per tree
 0.4Kgs 1.0Kgs 3 Kgs
 
     
 Number of 1 year old trees established at year end
 132 132
  132
 
 Number of  2 year old trees established at year end  132  132  
  Number of  3 year old trees established at year end   132  
 Cumulative total yield per year in Kgs
0.4x132


= 52 Kgs
 0.4x132= 52
+1.0x132= 132
           
= 184Kgs
  0.4x132= 52
+1.0x132= 132
+3x132= 396
=580 Kgs
 
Total value  of crop per year in GBP
 
 £52 £184 £580 
 Subtract 25Kgs of  harvest for family consumption each year leaving...
 
£27
 
£159

£555

 Subtract 66% for tree losses, under production, price variability, currency fluctuations and other risks
 £8.91 £52.47 £183.55 Cumulative total value of crop = £244.53
Annual cash value of crop when averaged over 3 years (£244.53÷3)
£81
£81£81 


Note that moringa trees are unusual in that their leaves are harvested on an ongoing basis, up to 9 times a year and that each cropping stimulates further production. They also produce valuable seeds,  flowers, bark and roots which have not been factored into these calculations.

Casuarina - annual cash yield £127

  Year 1
 Year 2
 Year 3
  Typical yield per tree
 nil nil 1 pole
    
 Number of 1 year old trees established at year end
 83 83
  83
 Number of  2 year old trees established at year end  83  83
 Number of  3 year old trees established at year end   83
Value of crop at year end
nil
nil83x14= £1,162
 Subtract 66% for tree losses, under production, price variability, currency fluctuations and other risks nil nil Cumulative total value of crop =£383.46
 Annual cash value of crop when averaged over 3 years (£383.46÷3) £127 £127 £127

Note that casuarina trees also produce a valuable leaf fodder crop and their roots have medicinal uses - neither of which have been factored into these calculations.


All scheme participants will be required to make good any tree losses as assessed at year end M and E to remain in the scheme as is the practice in our current projects.