What should an agronomist do when it rains when sampling?

Sampling with rain or sampling again the next day.

In case of rainy days when sampling, you can wait until the rain stops or take samples with rain, and mark the samples.

Agronomic sampling will inevitably encounter soil sample preparation, which refers to the process of mixing, drying, grinding and sieving after collecting soil samples from the field. Fresh soil samples collected in the field need to be dried in time to inhibit microbial activities and chemical changes in the soil, which makes the analysis results more stable and convenient for long-term preservation.