Nutrient Management Research Database

General Information

Research Title

Identifying Fruit Mineral Removal Differences in Four Avocado Cultivars

Link to File

http://ucanr.edu/sites/nm/files/76678.pdf

Research Specifications

Crop: Avocado

Soil Type: sandy loam

Country: Mexico

Year: 2001

Authors

Samuel Salazar-Garcia and Ingnacio Lazcano-Ferrat

Summary/Abstract from Original Source

Research Highlights

Design and Methods

This study examined the rate of avocado tree nutrient uptake from the soil.

Four cultivars (Booth-8, Choquette, Hall, and Hass) were grown in commercial orchards.

Each tree received 13 lbs of 17-17-17 (N - P2O5 - K2O) split into two applications. One application was at the start of the rainy season in June and the other was at mid-growth.

Avoacado fruit were analyzed for mineral contents, yields, and a variety of quality components.

Results

Hass avocados had the highest rates of nutrient uptake.

Nutrient uptake per 22 tons fruit:
- Hass
  - 114 lbs N
  - 45 lbs P2O₅
  - 207 lbs K2O₅
- Choquette
  - 67 lbs N
  - 30 lbs P2O₅
  - 133 lbs K2O₅
- Hall
  - 64 lbs N
  - 22 lbs P2O₅
  - 131 lbs K2O₅
- Booth-8
  - 81 lbs N
  - 26 lbs P2O₅
  - 120 lbs K2O₅

These results show that nutrient removal rates can be expected to differ between cultivars.

Additional Information

Tags (links to other subject matter in database)

avocado,avocados,cultivars,nutrient removal rates