Apple Yield and Soil Quality Data from a Two-Year Biofertilizer Field Trial

A two-year field experiment from 2024-2025 evaluated the effects of castor bean enzyme biofertilizer on apple trees in Inner Mongolia. The dataset, created by Mingjing Li and shared under CC-BY-4.0, includes measurements of soil properties, enzyme activities, fruit yield, and nutritional quality. It was last updated on 2026-05-21.

Use Cases

• Modeling the relationship between soil enzyme activities and fruit vitamin C content based on the strong positive correlations described.
• Comparing the efficacy of different fertilizer types (cattle manure, compound fertilizer, biofertilizer) on soil pH and organic matter.
• Predicting apple yield based on soil available phosphorus levels and individual fruit size data from the experiment.
• Analyzing the impact of biofertilizer application rates on suppressing soil polyphenol oxidase activity.

Strengths

• Includes specific, quantified results such as a 50.9-70.6% increase in soil organic matter and a 101.4-135.9% increase in fruit vitamin C content.
• Describes a structured, two-year field experiment with a randomized complete block design and six distinct treatments.
• File is openly licensed under CC-BY-4.0, permitting broad reuse with attribution.

Limitations

• Row count and column-level documentation are absent; field semantics must be inferred after download.
• The dataset is very small at 22.9 KB, indicating limited scope, likely containing summary results rather than raw observational data.
• Geographic coverage is limited to the Horqin sandy land of Inner Mongolia, which may limit generalizability.

Provenance

Source

figshare, author Mingjing Li.

Collection Method

Data was gathered from a two-year field experiment on 7-year-old 'Saiwaihong' apple trees using a randomized complete block design.

Time Range

Covers a two-year experimental period, likely 2024-2025.

Freshness

Last updated 2026-05-21 05:47:12; freshness should be verified.

Geography

Horqin sandy land, Inner Mongolia, China.