High-resolution observation of soil water dynamics in the rooting zone: A case study for blueberry plants

Hydrotropic Root Behavior in Water-saving Cultivation: a High-resolution Monitoring Study of Soil Water Dynamics

“…This phenomenon has been observed in previous studies based on high-resolution observation of soil water dynamics (Fig. 1) (Usui et al, 2017). In terms of soil physics, the movement of the wetting front is driven by the matric potential gradient.…”

“…This can be re ected in the vibrational signals of soil moisture sensors. Usui et al (2017) reported this phenomenon in a heterogeneous soil based on highresolution observation of soil moisture (Fig. 1).…”

A case study on water use efficiency in extreme water-saving cultivation of tomato plants

“…Physiological symptom was also observed to be closely related to water absorption activity. The precision observation of soil moisture dynamics using the soil moisture sensor matrix was developed in our previous paper (Usui et al, 2017;Li et al, 2018a). There are different growth eters were plant height, number of branches, and number of fruits.…”

“…The system uses minimally sized soil moisture sensors placed in a matrix inside and outside the rooting zone to obtain precise, real-time signals of the temporal and spatial moisture dynamics around the crop roots. Prior to this study, the authors have used this method to detect oscillations of soil moisture caused by the cyclic water absorption activities of blueberry crop in heterogeneous soil (Usui et al, 2017), to detect the movement of J o u r n a l o f H o r t i c u l t u r a l S c i e n c e the wetting front in homogeneous dried soil with restricted irrigation (Li et al, 2018a), and to analyze root hydrotropism in high soil water potential gradient near the wetting front of irrigation water (Li et al, 2018b). This water-saving approach minimized the water loss, and the water applied was only used for crop transpiration and growth.…”