| 摘要 |
PURPOSE: The method improves rooting conditions for trees by changing the ground conditions of earth and pastes roots by painting them with stimulating chemical or cutting off the aged or weakened old roots, and gives nutritional things through pipes in the earth. CONSTITUTION: The method comprises the stages of: a) digging out earth around the subject tree to expose the weak roots: b) cutting off the exposed roots and applying a treating ointment on them for protection: c) refilling with 1-2mm sand around the roots and placing a number of hollow pipe pieces of a diameter in the mixture of sand and pebbles round the pipes: is refilling the dug earth into the place: adding water and nutritional things through the pipes. |
