To provide a method for hilling type rhizosphere controlling cultivation of a fruit tree capable of harvesting uniform and high quality fruits from the fruit tree and obtaining large quantity of high quality fruits per unit area of a fruit garden.
This invention relates to the method for hilling type rhizospere controlling cultivation of the fruit tree comprising a step transplanting the fruit tree P on a hill 3 formed on a water protecting layer separated from the earth by a water absorption preventing sheet 1, by hilling soil 3 which has a surface area of rootlets per unit an area of leaves of about three times or more to that of the ground planted tree, and a step in which the surface of the hill is exposed to sun-light to make the rootlets in an entangled state in the hill and to form thick rootlets. The amount of supply water per a day in every growing stage is set as 120% of the amount of the standard supply water which is calculated from data showing the maximum amount of evaporating water at a day in fine weather in every growing stage wherein the growing stage is previously set by experiments observing the amount of water required in every stage of growth on every kind of trees and dividing the time according to the change of water amount required. The water supply of the calculated amount is automatically carried out by a watering tube 8 in a plurality of times during each daytime.
KISHI YUKO
WASHIO KAZUHIRO
KOJIMA KOICHI
