FIELD: agriculture. SUBSTANCE: apparatus has L-shaped metal pipe of arbitrary diameter with closed lower end and flexible metal plate welded to L-shaped pipe at site spaced from pipe base by a distance of 15-30 cm. In case of multiple- stem bush, several metal plates are used. Plate length exceeds tree trunk circumference. Method involves inserting apparatus into soil for depth of 15-30 cm up to metal plate level; bending metal plate around tree trunk; sealing spaces between trunk and metal plate with neutral glueing material. EFFECT: increased efficiency, simplified method and construction and enhanced reliability in operation. 5 cl, 1 dwg
Authors
Dates
1996-04-10—Published
1992-02-25—Filed