• Korean Journal of Organic Agriculture
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• v.5 no.2
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• pp.85-91
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• 1997

This experiment was carried out to investigate the effect of slow-release fertilizers on yield of lettuce. Fertilizers were treated with CDU, MEISTER, Jobi Gohyungbokhapbiryo, Kyungki Wonyebokbi 1ho, Kyungkibokbi Nojeok, Kyungki Jeonjakgohyungbokbi, Traditional manuring, and No manuring. Yields of Spinach was increased with slow-release fertilizers, also. But analysis of chemical components of plants and soil were no difference. It was very effect to increase yields of lettuce, to reduce in number of supplementary manuring and laboring.

• Korean Journal of Organic Agriculture
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• v.5 no.1
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• pp.79-85
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• 1996

This experiment was carried out to investigate the effect of slow-release fertilizers on yield of radigh. Fertilizers were treated with CDU, MEISTER, Jobi Gohyungbok-hapbiryo, Kyungki Wonyebokbi 1ho, Kyungkibokbi Nojeok, Kyungki Jeonjakgo-hyungbokbi, Tradidtional manuring, and No maunring. Yields of radish were increased with slow-release fertilizers, CDU and MEISTER were effective to radish shoot, also. But analysis of chemical components of plants and soil were no difference. It was very effect to increase yields of radish, to reduce in number of supplementary manuring and laboring.

• Korean Journal of Organic Agriculture
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• v.4 no.2
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• pp.86-96
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• 1995

This experiment was carried out to investigate the effect of slow-release fertilizers on yield of chinese cabbage and spinach. Fertilizers were treated with CDU, MEISTER, Jobi Gohyungbokhapbiryo, Kyungki Wonyebokbi 1ho, kyungkibokbi Nojeok, Kyungki Jeonjakgohyungbokbi, Traditional manuring, and No manuring. Yields of chinese cabbage were increased with slow-release fertilizers, and CDU was more effective to the head than to the out-leaf, especially. Spinach was increased with slow-release fertilizers, also. However, analysis of chemical components of plants and soil were no difference. It was very effective to increase yields of chinese cabbage and spinach, to reduce in number of supplementary manuring and laboring.