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Haifa Blog

22Feb2021
Improve yields by using Dormancy breaking and foliar feeding

Although it is very cold outside, Spring is around the corner and it is now the time to prepare for dormancy-breaking treatment in deciduous crops. In areas where the amount of chilling hours may be marginal, spraying dormancy breaking agents (oils) is a common practice to improve yields. It was found that foliar application of Haifa Bonus prior to the oil spray allows reduction of oil application rates. The advantages of this foliar application are:

 

  • Reduce costs.
  • Minimizing the risk of phytotoxicity.
  • More uniform dormancy breaking.
  • Produces earlier.
  • More bountiful first harvest wave.

After the beginning of flowering, the use of special foliar Poly-Feed formulas for each stage can stimulate growth and increase fruit size. These are the Poly-Feed foliar formulas:

FormulaN:P2O5:K2OMicro-Nutrients (ppm)
Fe*Mn*Zn*Cu*Mo*B*
Vegetative Booster21-21-21130066020014090200
Flowering Booster8-52-17500250755535100
Fruiting Booster16-8-34120060018013080200

 

The Poly-Feed recommendation for some deciduous crops:
 

Stage           Formula         Conc.                             Spray volumeApplications
Apple
20-30% FlowersVegetative Booster0.5-1%1000-2000 l/ha1
After flower moltingFlowering Booster0.5-1%1000-2000 l/ha2
Fruit developmentFruiting Booster0.5-1%1000-4000 l/ha2
Grape 
BloomingVegetative Booster0.5-1%400-600l/ha 
Fruit swellingPoly-Vineyard1%400-600l/ha 
2 applications in 2-3 weeks interval
Peach
20-30% FlowersVegetative Booster0.5-1%1000-2000 l/ha1
After flower moltingFlowering Booster0.5-1%1000-2000 l/ha2
Fruit developmentFruiting Booster0.5-1%1000-4000 l/ha2
Pear
20-30% FlowersVegetative Booster0.5-1%1000-2000 l/ha1
After flower moltingFlowering Booster0.5-1%1000-2000 l/ha2
Fruit developmentFruiting Booster0.5-1%1000-4000 l/ha2

More recommendations for foliar application for other crops you can find in "Folimatch" the Haifa's new cellular application that generates accurate fertilization recommendations based on location parameters, and considering specific phenology stages of the crop.

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