To provide a plant growth-controlling material that can control the growth of plants suitably in many cases, because there are problems such that, although various kings of organic and inorganic compounds other than agrochemicals are employed for controlling plant growth and the plant growth requires various kinds of treatments, and in some cases they conflicts with each other, for example, growth promotion or suppression, germination suppression, green manure effect, for example, chlorophyll increase or green retention, soil acidity adjustment, increase in sugar content, fertilizer effect causing taste improvement, disease prevention, and the like, for a wide range of plants, for example, edible and inedible crop plants, fruit trees, flowers, flower trees, forest trees.
The objective plant growth-controlling material mainly comprises plaster and iron oxide in addition to titanium oxide. The material is applied to farm field or mixed with the soil.
SASAKI KENICHI
ASANO SHUNSUKE
KUMAZAWA IWAO
IMAI OSAMU
YOSHIMURA HIDEJI
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