This study is to find out the best mixture of soil and medicinal plants by growth experiment of medicinal plants and soil analysis with presenting basis regarding optimal soil or medicinal plant on divers conditions in urban agriculture. Types of soil...
This study is to find out the best mixture of soil and medicinal plants by growth experiment of medicinal plants and soil analysis with presenting basis regarding optimal soil or medicinal plant on divers conditions in urban agriculture. Types of soil on this study are five kinds of granite soil-control(A), leaf mold and granite soil(B), earthworm soil and granite soil(C), animal vermicast soil and granite soil(D), bed soil(E), and following former study practices, the ratio of mixture is seven (these mixed soil) to three(granite soil). The six medicinal plants used in this study has been selected by recommendation from related institutions and market experts among medicinal plants which have easy accessibility in the market and high availability in urban agriculture, and proper suitability on growth as follows; Kumgangcho, Glechoma grandis, Ledebouriella seseloides, Liriope platyphylla, Dipsacus asperoides, Asparagus officinalis, and installed at total 90 experimental places for three times repeats.
To identify chemical compositions in the soil before growth experiment, mixtures of earthworm soil and granite soil and bed soil which has the best option for general soil range of crop, abundant nourishment, and permeability, moisture retensien, nutrient holding capacity is regarded as having good growth of plants after soil composition analysis with pH, T-N, T-P, exchangeable cation, EC and so on. As a result, Kumgancho, Glechoma grandis, Ledebouriella seseloides, Liriope platyphylla, Dipsacus asperoides had a good growth, Asparagus officinalis had a lower growth among six medicinal plants from the mixture of earthworm soil and granite soil.
Usage of the mixture of earthworm soil and granite soil was thought to be efficient in an aspect of productivity and safety, which is expected easily to use as base soil for urban agriculture, have no bad smell, and capable of earlier harvest due to good growth of plants even though there was a little difference of growth in the best mixture soil between five kinds of soils and six kinds of medicinal plants.
All medicinal plants except for Ledebouriella seseloides and Liriope platyphylla had withered from the mixture of animal vermicast soil and granite soil, which was thought that salts by high EC and overuse of organic fertilizer caused over-fertilizing on plants, followed by result in withering due to the hindrance of growth.
Change in the ratio of mixture from 7 to 3 to 3 to 7 of animal vermicast soil and granite soil showed a good growth of plants, which was regarded as the evidence to backup data about the hindrance of growth by over-fertilizing.
Keywords : Urban agriculture, Medicinal plant, Growth characteristics, Soil condition