This study was conducted to analyze the relationship between planted plants and immigration plants by monitoring the wildflower garden constructed at Seoul Samgaksan Elementary School. The results of this study are as follows: First, plants planted in the garden 32 taxa, except for weakened only 1 taxa (Clematis patens), the remaining plants maintained or increased their populations. Among maintained Plants, that did not volume growth were 6 taxa and volume growth on the spot were 5 taxa. 15 taxa were spread around the planting area and 5 taxa spread sporadically to unpredictable areas other than the planting area. Although most of the planted plants show good growth, no special management is required, but Lonicera japonica needs the density management that cuts off the stem in the early spring and 5 sporadically spreading taxa, the planting intent of garden is attenuated, so remove the root when new leaves come out in spring. Second, the total number of plants transferred after 2 years of wildflower garden constructed were 83 taxa total, which is 2.6 times that of planted plants. The seed disseminule form was analyzed as 52% barochory, 27% anemochory&hydrochory, 16% autochory and 5% zoochory. Also about 43% of the transferred plants were estimated to been imported from soil seed bank. Third, we classified immigration plants into largely native plants and naturalized plants. The native plants were transferred to more than naturalized plants: 65 native plants, 1 cultivated plants and 17 (22%) naturalized plants. The results of the monitoring of the rooftop garden ‘Choroktteul’ in Seoul City Hall showed that there were differences in the type and number of the immigration plants depending on the distance and quality of the surrounding greenery. Fourth, the management method of immigration plants is divided into three categories: elimination, transplantation, and utilization. The 39 taxa were selected for the elimination: Invasive alien plants among naturalized plants, fast spreading plants, plants that expand sideways with rhizomes, and plants that interfere with the growth of planted plants: grow to over 1 meter in height and climbing plant. The elimination period should be dry, clear, windy day, remove the root without any residue. The transplanted plants are 18 taxa, tree, plants not suitable for habitat, and in elementary school textbooks. It is a group of 26 taxa which are used in the garden: for landscape that plants have ornamental values (flowers, leaves, and autumn colors etc.) but do not attenuate the intent of the garden, and for groundcover that plants have low plant height and fast spread. It is also possible to prevent immigration plants when you are mulching or planting plants densely populated areas when making a garden.

벼 무논골뿌림 재배시 입모수별 적정 질소 시비방법을 구명하고자 입모수 및 질소시비방법을 달리하여 생육 및 수량을 검토한 결과를 요약하면 다음과 같다. 1. 최고분얼수는 입모수 30개/m2 에서 파종후 60일경, 60개/m2 는 파종후 55일경, 90~150개/m2 에서는 파종후 50일경이었으며, 유효경 비율은 입모수가 많을수록 적었다. 2. 수수는 입모수 30개/m2 에서만 300개/m2 내외로 다소 적었으나 60개/m 이상에서는 입모수간에 별 차이가 없었고 입모수가 적었을 때는 실행 시비방법보다 조기분얼비 시용(T2)에서 많았다. 3. 도복은 입모수 120개/m2 이상에서 다소 발생하였고 시비방법간에는 수비를 시용한 실행 분시방법에서 다른 시비방법보다 다소 심하게 발생하는 경향이었다. 4. 수량은 입모수 60개/m2 이상에서는 입모수간에 유의차가 없었고 입모수가 적었을 때는 실행 시비방법보다 3엽기에 분얼비를 시용하는 것이 증수되었으며 입모수 90개 이상에서는 시비방법간에 별 차이가 없었다. 5. 재파시 경영비 증가를 감안한 소득으로 본 재파한계 입모수는 55개/m2 이었다.