• Korean Journal of Soil Science and Fertilizer
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• v.23 no.3
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• pp.199-203
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• 1990

Effect of a trial compound fertilizer for raising rice seedling in tray, was tested on varieties of Chucheongbyeo and Taebekbyeo and on soil media pH of 6.4 and 5.4. The trial product increased dry weight, number of leaves, and ratio of dry weight to plant height and decreased damping-off incidence. The soil media pH of 6.4. applied trial product, maintained pH 4.0 to 5.4 for seedling period, but the soil media pH of 5.4 was too lower. The nitrogen uptake by rice seedling in the trial product plot was lower at 15 days after seeding compared to the control of straight fertilizer application, but it was higher and 35 days after seeding, resulting in optimum rice seedlings.

• Current Research on Agriculture and Life Sciences
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• v.20
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• pp.19-24
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• 2002

This study was conducted to determine the optimum intervals of shelves and seed-tray layout in container for raising rice seedlings at automatic facility. The seedling characteristics were evaluated with 10-day to 20-day old seedling grown under the different intervals of nursery shelves and seed-tray arrangement in the containers. The plant height was increased as the shelf intervals in nursery containers from 17 cm to 23 cm. The difference in plant height was larger in seedlings seeded at May 10 than those at June 10 and in 20-day old seedlings as compared with 10-day old seedlings. The growth characteristics of seedlings was significantly varied with the layout intervals of nursery tray on the containers. The seedling height was shorter as the extension of layout intervals of the tray on the shelf of nursery containers, but the seedling quality was increased in the seedling which grown on the trays arranged at 3 to 5 cm intervals. The light intensity was remarkably different from the position of nursery tray in the container. The illumination intensity was the highest on the uppermost tray. However the seedling height was shorter as the raising of tray position from the lowest shelf to the highest it in nursery container. The best results based on the seedling characteristics was obtained from the seedlings which grown in the tray arranged at 3 cm interval on the ten-shelf container with 20 cm intervals.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.47 no.6
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• pp.448-452
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• 2002

The purpose of this study was to determine the optimum sowing amount for raising rice seedlings in automatic facility. four levels of seeding amount, 200, 220, 250 and 300 tray were applied to compare the seedling characteristics according to seeding density. Sowing dates were fixed at May 10 for single cropping and June 10 for double cropping. The seedling height was taller as the increase of sowing amount from 200g to 300g/tray, however the seedling quality was decreased with increasing of seed density. At 40-50 days after transplanting, there was no significant difference in the plant height and tiller number among the rice seedling raised under different seeding densities. Grain yield of 15-day old seedlings transplanted at May 25 was not significantly different among four different levels of seeding amount. However, the yield of 10day old seedling transplanted at June 20 was significantly higher in seeding density of 250g/tray than that of 300g/tray.

• Proceedings of the Korean Society of Crop Science Conference
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• 1992.05a
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• pp.70-71
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• 1992

• Proceedings of the Korean Society of Crop Science Conference
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• 2000.04a
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• pp.190-191
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• 2000

• Proceedings of the Korean Society of Crop Science Conference
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• 1990.05a
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• pp.26-27
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• 1990

• Journal of Environmental Science International
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• v.30 no.8
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• pp.685-691
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• 2021

This study aimed to find a suitable size and a seedling raising stage for growing cuttings of Euonymus fortunei 'Emerald and Gold' using plug trays. The experimental method, involved cutting two nodes from a solitary branch of E. fortunei 'Emerald and Gold', and the use of 32 (143 mL/cell), 50 (70 mL/cell), 105 (18 mL/cell), 200 (13 mL/cell) plug trays. The cuttings were transplanted to trays after they were filled with a universal horticultural medium. To compare the growths, plant heights, the numbers of leaves, longest root lengths, thickness/radius ratios, dry weights, and fresh weights were measured from July to October, and statistical analyses were performed using both the two-way repeated-measures analysis of variance (ANOVA) and Tukey's post-test. The results confirmed that the size of the plug tray and the seedling raising stage had a significant effect on the growth of E. fortunei 'Emerald and Gold.' In addition, the overall growth was high and the change in growth was relatively rapid in districts 50 and 105. Therefore, it can be considered appropriate to use 50 and 105 trays when growing cuttings of E. fortunei 'Emerald and Gold' on plug trays.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.60 no.1
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• pp.23-28
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• 2015

This study was performed to investigate the adequate standard pot and number of plants per tree of raising seeding pot on the foxtail millet transplanting culture in the southern province. Due to the various application of wellbeing-health food recently, for upbringing of the foxtail millet, millet and sorghum in minor cereals, R & D and policy support is being promoted actively. The foxtail millet growing season is so short from 90 to 130 days, and it is large variations for a growth temperature. The main results are as follows. When it comes to foxtail millet transplantation, seedling quality of 406 holes, 200 holes and 162 holes of raising seeding pot type were not all significant, and field rooting percentage is accounted for all 94 to 95%. Yield of a foxtail millet was exposed in 406holes 305 kg/10a>162holes 303 kg> 200holes 302 kg order, and it was no significance between test processing. When it's the raising seeding transplanting culture, in case of pot culture, 406holes pot culture were reduced the bed soil cost 63%, pot 50%, working hours 18% for 200holes pot. Transplanting seedling quality per a foxtail millet transplanting culture method, dry weight was high inclination as transplanting number of plant is less, and field rooting percentage displayed more than all 95%. Yield appeared to 2 plants seedling transplanting 315kg/10a> 3 plants seedling transplanting 304kg>1 plant seedling transplanting 256kg order. The projected cost per the pot-sort on the raising seeding transplanting culture of foxtail millet, the seedling transplanting culture of 406holes was reduced 40% percentages compared to 200holes as 76,230won/10a. As a result, 406holes pot and 2plants seedling transplanting culture, labor-saving culture was possible.

• Korean Journal of Food Science and Technology
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• v.34 no.1
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• pp.128-131
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• 2002

'Manita', a red pepper cultivar being cultivated currently and 'HL', a cultivar bred for single-harvest by National Horticultural Research Institute were grown by direct sowing and raising seedling methods, respectively, and all the fruits on the tree were harvested once. Fruits were grouped into 6 grades by color and appearance and their chemical compositions were analyzed. Generally, 'HL' showed less redness and contained less amounts of capsaicin, organic acid, Vit. C, and sugar than 'Manita'. Regardless of cultivar and cultivation method, red-old fruits, ripened and partially dried on the plant, had more red color (21-30%) and more capsaicin (40.0-78.3 mg% vs. 33.2-52.7 mg%), but less sugar (12.70-16.69% vs. 14.46-17.43%) than red-fresh fruits. No difference was found between direct sowing and raising seedling.

• Journal of People, Plants, and Environment
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• v.24 no.5
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• pp.499-507
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• 2021

Background and objective: This study was carried out to develop an effective technique for raising seedlings of Veronica pyrethrina Nakai, a native plant species in the Korean Peninsula, in plug trays. Methods: To investigate the optimum plug cell size and sowing media, we sowed seed in to plug trays with 34, 21, and 10 mL cells and filled with a commercial horticultural substrate and mixtures of peatmoss and perlite in 1:1, 3:1, and 4:1 ratios. Fertilization levels were set at 0, 500, 1000 and 2000 mg·L^-1. Results: Plug cell size did not significantly influence the seedling growth of V. pyrethrina. By substrate type, the growth rate was highest in the horticultural substrate, followed by 4:1, 3:1, and 1:1. Growth by fertilization level was higher in all fertilized treatment groups than in the control group, and there was no difference among 500, 1000, and 2000 mg·L^-1. Conclusion: The results of this study proved that it is most suitable for raising seedlings of V. pyrethrina to sow the seeds in a 10 mL cell plug tray filled with horticultural substrates, and apply fertilizers with less than 500 mg·L^-1 concentration.