METHOD OF AUTOMATIC CONTROL OF REFRESHING-MOISTENING WATERING OF WOOD PLANTS AND DEVICE INTENDED FOR ITS REALIZATION Russian patent published in 1998 - IPC

FIELD: irrigated cultivation. SUBSTANCE: method includes determination duration of refreshing-moistening watering which is performed till current value of diagnostic index gets below critical value again when measuring the relative xylem flow rate up to end of light period of day. Device intended for method realization is provided with unit which separates minimum value of flow rate, illumination sensor and count-and-storage unit. The latter consists of two cells inputs of which are supplied with signals shifted relative to one another in time set by pulse generator which is part of device control circuit. EFFECT: enhanced control. 2 cl, 3 dwg