In an embodiment, agricultural intelligence computer system stores a digital model of nutrient content in soil which includes a plurality of values and expressions that define transformations of or relationships between the values and produce estimates of nutrient content values in soil. The agricultural intelligence computer receives nutrient content measurement values for a particular field at a particular time. The agricultural intelligence computer system uses the digital model of nutrient content to compute a nutrient content value for the particular field at the particular time. The agricultural intelligence computer system identifies a modeling uncertainty corresponding to the computed nutrient content value and a measurement uncertainty corresponding to the received measurement values. Based on the identified uncertainties, the modeled nutrient content value, and the received measurement values, the agricultural intelligence computer system computes an assimilated nutrient content value.

A soil analysis device is configured to create a soil sample solution. The device includes a reservoir configured to store an extractant, a mixing chamber coupled to the reservoir and configured to receive extractant from the reservoir and to receive a raw soil sample, and a control system. The control system is configured to determine an amount of extractant needed to produce, from the raw soil sample, a soil sample solution with a particular soil-to-extractant ratio and configured to cause the determined amount of extractant to be transferred from the reservoir to the mixing chamber.

A remote control and monitoring apparatus and method for plant growth has an apparatus for planting and monitoring the growth of various plants, and an accompanying method lays out steps for the operation thereof. A planter body provides a plant receptacle, as well as an irrigation mechanism for watering the plants on a schedule or as otherwise defined, a plurality of sensors for monitoring the environmental conditions of for the plants and alerting the user is any parameters fall out of an acceptable range, and at least one camera to view the plant at any time as well as capture images and timelapses.

An agricultural planter row unit has a gauge wheel supported by a gauge wheel arm, to control planting depth. An actuator drives movement of a mechanical stop that bears against a gauge wheel support arm to position the gauge wheel support arm to obtain a desired planting depth. A seed depth control system generates a force estimate indicative of a force to make a planting depth adjustment. The control system automatically controls actuation of the seed depth actuator to exert the estimated force.

A planter row unit is positioned so a gauge wheel and an opener are in a known position relative to one another. A planting depth actuator that travels along an extent of travel to change a relationship between the gauge wheel and opener is positioned at one end of its extent of travel, out of engagement with a gauge wheel arm and is then moved to an engagement position where it engages the gauge wheel arm. The location of the engagement position is identified as a calibration point.

A method for guided agronomic trial management includes: identifying a field test for a geographic region; and determining field characteristics for the field test based on field data (e.g., current field data, historic field data, etc.) associated with the field test.

A soil sample collection machine has a mobile support frame that is transportable across the soil surface of an agricultural field. A surface scraper assembly is mounted to the mobile support frame and includes a scraper and a driver that is adapted to lower the scraper onto the surface of the soil and move the scraper across the soil surface for removing surface debris before a sample collection probe is driven into the soil at the scraped location and removes a soil sample. A soil sampling probe assembly is also mounted to the mobile support frame and includes a sample collection probe and a driver that is adapted to move the sample collection probe along a downward path into the soil to collect a sample of soil at the place the surface was scraped, to retract the probe upward and then to eject the soil sample from the probe into a container on an endless conveyer of containers.

A microbial sensor, microbial sensing system, and method that can be used to determine the chemical environment of unsaturated soils, rhizosphere, and/or plants are disclosed. The microbial sensing system can be used for monitoring the health of plants including nutrients, salinity, contaminants, chemicals (pesticides, herbicides) and diseases. A microbial sensing system can include one or more indicator electrodes and a reference electrode. The microbial sensing system can include a signal acquisition and/or communication module to allow the real-time collection of data from field deployments and laboratory investigations.

System and method for detecting a leakage of a nutrient from soil is provided. The nutrient is applied by a nutrient applicator associated with a work vehicle. The method includes receiving, by one or more processors, sensor signals from at least one sensor coupled to a nutrient applicator that observes a temperature of the soil and generates sensor signals based on the observation. The method includes determining, by the one or more processors, whether the observed temperature of the soil exceeds a pre-defined threshold temperature. The method includes generating, by the one or more processors, one or more notifications to a human-machine interface that the nutrient has leaked from the soil based on the observed temperature exceeding the pre-defined threshold temperature.

In an embodiment, a system for measuring soil element concentration in a field in real time is disclosed. The system comprises an extraction apparatus coupled to a mobility component configured to move the system in the agricultural field. The extraction apparatus configured to receive a plurality of soil samples successively from a soil probe coupled to the mobility component, when the mobility component is operating. The extraction apparatus containing an extractant solution that is a solvent of the soil samples. In addition, the extraction apparatus comprising a mixer that is configured to mix the soil samples with the extractant solution, thereby forming a solution mix. The system also comprises a chemical sensor coupled to the extraction apparatus, the chemical sensor configured to measure a concentration level of a soil element in the solution mix. Furthermore, the system comprises a processor coupled to the chemical sensor, the processor configured to calculate a concentration level of the soil element in each of the plurality of soil samples after the soil sample is received by the extraction apparatus and before a successive soil sample is received by the extraction apparatus.