  Weather and soil conditions are particularly important when it comes to
farming activities. Study of these factors and their role in nutrient and
nitrate absorption rates can lead to useful insights with benefits for both the
crop yield and the protection of the environment through the more controlled
use of fertilizers and chemicals. There is a paucity of public data from rural,
agricultural sensor networks. This is partly due to the unique challenges faced
during the deployment and maintenance of IoT networks in rural agricultural
areas. As part of a 5-year project called WHIN we have been deploying and
collecting sensor data from production and experimental agricultural farms in
and around Purdue University in Indiana. Here we release a dataset comprising
soil sensor data from a representative sample of 3 nodes across 3 production
farms, each for 5 months. We correlate this data with the weather data and draw
some insights about the absorption of rain in the soil. We provide the dataset
at: https://purduewhin.ecn.purdue.edu/dataset2021.
