How does soil organic matter affect potato productivity on sandy soil?

While many studies note the positive effects of soil organic matter (SOM) on crop yields, there is limited quantitative information on the influence of increased SOM on potato productivity in sandy soil. This study estimated the impact of varying SOM on potato productivity in sandy soils and explored whether nitrogen (N) mineralization served as a primary mediator. Soil from nine fields in Wisconsin (SOM range of 1.1 to 3.8 %) was collected for a greenhouse study. Both NH4-N and NO3-N extracted from ion strips and potentially mineralizable nitrogen (PMN) were used as the proxies for N mineralization. Linear mixed effect models indicated that fresh matter whole biomass and dry matter vine biomass were 0.45 and 0.54 times greater at 3.8 % SOM compared to 1.1 % SOM at an optimal soil pH of 5.2, respectively. Similarly, total N uptake in the whole and vine biomass was 0.51 and 1.0 times higher at 3.8 % SOM than 1.1 % SOM, respectively. While PMN demonstrated a positive correlation with SOM,..., , , # How does Soil Organic Matter Affect Potato Productivity on Sandy Soil?

[https://doi.org/10.5061/dryad.wstqjq2t9](https://doi.org/10.5061/dryad.wstqjq2t9)

This dataset investigates the impact of Soil Organic Matter (SOM) on potato productivity in sandy soil. The data is derived from an experimental study that includes various treatments, replications, and measured parameters related to soil properties and potato growth. The dataset provides insights into the relationships between soil characteristics and potato productivity.

## Description of the data and file structure

The dataset consists of several columns representing different aspects of the experimental setup, soil properties, and potato growth. Some key columns include:
Treatments: Different experimental treatments applied.
            N1 = 0 nitrogen
            S1, 2, 3 = Replications 1, 2, 3
            FF, NF, W, L, RE, TN, DH, GS, NW= Nine different abbreviated fieldnames
Reps: Replications of each treatment.
Fieldnames...