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Durian trees: Fertigation & foliar feeding recommendation

 

 

Combining fertigation with complementary foliar feeding treatments provides the Durian trees with all the essential nutrients for healthy growth
 

Soil Type: Medium – Heavy.
Plant Density: 88 – 115 tree/Ha.
Expected Yield: 150 – 250 Kg/Tree.

 
 
 

Mean nutrient requirement for fruit bearing trees (over 6 years old)

 
NP2O5K2O
----------- kg/tree -----------
1.0 - 1.80.6 - 1.42.1 - 4.0
 
 
 
 

Recommendations for fertigation

 
Grwoth stageFertilizer recommendationsNutrients supplied (g/tree)
FertilizerRate (kg/tree)NP2O5K2O
1-2 months before floweringPoly-Feed 9-27-270.5 – 1.045 – 90135 - 270135 – 270
FloweringPoly-Feed 14-7-280.5 – 1.070 – 14035 – 70140 – 280
Fruit setPoly-Feed 9-27-270.2 – 0.418 – 3654 – 10854 – 168
6 weeks after floweringPoly-Feed 14-7-281.5 – 3.0210 – 420105 – 210420 – 840
1 month before harvestMulti-K2.0 – 2.5260 - 3900920 – 1,400
Post HarvestPoly-Feed 9-27-270.5 – 1.045 – 90135 - 270135 – 270
FlushingPoly-Feed 14-7-281.5 – 3.0210 – 420105 – 210420 – 840

Total

860 – 1,600570 – 1,1402,220 – 4,000
 
 
PF = Polyfeed drip of the different analyses indicated.
Multi-K = 13-0-46 (Potassium nitrate, soluble)
Note: Rate of application should be adjusted according to soil and leaf analysis.
 
 
 

 

Additional to the fertilization by fertigation, foliar feeding is recommended as complementary treatments, as follows:

 
 
 
Growth stageFertilizer recommendationsProven Effects
FertilizersRate
2 months after harvestMagnisal.4 - 0.5% by 2-3 sprays in 2 weeks intervalsInduction of new leaves, Improved health
2 months before floweringMKP or MAP0.5% by 3-5 sprays in 2 weeks intervalsFlower initiation
1 month after fruit setMulti-K + Magnisal1-2%, by 6-8 sprays in 2 weeks intervalsIncreases fruit size & shape
0.25-0.5% by 2-4 sprays in 2 weeks intervalsIncreases total solids in fruit
 
 

Magnisal = Magnesium nitrate, 11-0-0 +15.8 MgO, a fully soluble fertilizer.
MKP = mono-potassium phosphate, 0-52-34, a fully soluble fertilizer.
MAP = mono-ammonium phosphate, 12-61-0, a fully soluble fertilizer.