Recommendations for nitrogen (N) fertilization are based on the analysis of the soil mineral
N (SMN) content of one composite sample that is assumed to represent the average …

Estimating available nutrients and pH in soils has been considered an essential step to
improve soil fertility for better crop growth and yield. Classical or conventional laboratory …

Groundwater level monitoring is critical to the protection and management of groundwater
resources. Properly designed and executed instrumentation can play an important role in …

Micro‐electro‐mechanical system (MEMS) technology is becoming increasingly popular in
geotechnical and hydrological monitoring due to their distinct features, including its small …

22 growing season. However, SMN is traditionally viewed as the most difficult nutrient to
manage because of the very large spatial and temporal variability. Because of this, N is …

Sensory system performance and variability depend on the compensation degree against
fabrication process, voltage, temperature and ageing (PVTA) variations. A pH ion sensitive …

ISFET area is a promising technology developed recently, with widespread application in
ion based sensing applications such as PH measurement, TPS & water quality …

US10578641B2 - Methods and systems for electrically calibrating transducers - Google
Patents US10578641B2 - Methods and systems for electrically calibrating transducers …

Ion-Sensitive Field-Effect Transistors (ISFETs) are intrinsically sensitive to pH due to the
nature of their gate oxide, which consists of surface reactive sites for the analyte of interest …

Recently developed ISFET technology is widely used in ion-based sensing applications,
such as pH and TPS measurements, as well as other chemical or biological measures that …