Grow High-Yielding Luscious Apples with Natural Apple Tree Fertilizer

Apples respond to foliar and soil applications of all natural fertilizers used as apple tree fertilizer. Peak foliar responses are obtained on perennial crops such as apples by applying Natural Liquid Organic Fertilizers after the leaves open during pre-bloom, post-bloom, and during fruit set.

The Importance of Nitrogen

Too much nitrogen (N) affects fruit quality and shelf life. While nitrogen is an important nutrient in apple production, apple trees store N from season to season. If leaves are chlorotic after they open in spring then this condition is a symptom of an N deficiency, which may limit production. By changing the foliar spray and soil application rates, type of fertilizer applied, and the number of applications the N status of this crop is adjusted.

Foliar Applications:

1.) Mix 1-2 gallons of 4-3-3 Natural Fertilizer in 50-100 gallons of water (depending on tree density, spray equipment, and canopy volume). Spray on one acre after the leaves open. After bloom, repeat the Natural Liquid Organic 4-3-3 application if the trees require more N.

2.) Mix 2-4 qts of 0-0-8 Natural Kelp and Sulfate of Potash with the same volume of water and apply after fruit set.

3.) Repeat the second application 3-4 weeks before final harvest.

Rates vary according to soil fertility and other inputs used. Lower dilution rates are more effective than higher dilution rates. Two or three applications may be more effective than one heavy application. If other constraints only allow one trip over the field, then do not exceed a 3% dilution rate (3 gallons of Natural Organic Fertilizer to 100 gallons of water).

The addition of a biodegradable surfactant increases uptake by increasing adhesion to the leaf surface. Apply natural apple tree fertilizer in the early morning or late evening. Do not apply before or after rainfall or irrigation. On standard field sprayers, use turbo flood jet nozzles when applying Natural Liquid Organic Fertilizer to reduce clogging.

Yuck! Bitter Pit!

If bitter pit is a problem then add 1-2 gallons of Natural Liquid Lime to the spray tank to supply additional calcium.

No More Disease!

To reduce susceptibility to attack of insects and disease causing organisms, apply 1-2 qts of 0-0-8 Natural Kelp and Sulfate of Potash when signs of infestation begin to become apparent. Natural Organic Fertilizer added to the spray tank reduces the pesticide needed to obtain effective control by 1/3 to 1/2. Some growers are finding that all natural fertilizer applications alone eliminate the need for pesticide applications when they are applied at the same time as pesticides.

Soil Applications:

Mix 3 gallons of Natural Organic Fertilizer 4-3-3 in 20-30 gallons of water. Apply solution to one acre (apply spring and fall if soil is hard and low in organic matter).


Customer: David Chung, Jonahs Orchard, Tehachapi, CA

Year: 1998


  • 1 gallon of 4-3-3 Natural Liquid Organic Fertilizer as a foliar spray prebloom and postbloom
  • 1 gallon of 4-3-3 Natural Liquid Organic Fertilizer/acre/month through drip irrigation early in season (until fruit set)


  • Higher Quality
  • Fewer blemishes
  • Better flavor
  • Better color

Note: For specific information relating to pastures, please go to our pasture fertilizer page.

How Do I Get It?

Click here to order.