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Yield of Green Manure and Nitrogen of Cornflower (Centaurea cyanus L.) in Different Upland Soil Textures
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Yield of Green Manure and Nitrogen of Cornflower (Centaurea cyanus L.) in Different Upland Soil Textures
Cho, Hyeoun-Suk; Seong, Ki-Yeung; Park, Tae-Seon; Seo, Myung-Chul; Jeon, Weon-Tai; Kang, Hang-Won; Lee, Hye-Jin;
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Experiments were conducted to find out the landscape effects and green manure production at the same time in farmland. Cornflower was grown in different soil texture with sand, sandy loam, loam, clay loam, and was sowing with autumn and spring respectively. The overwintering rate of cornflower was at 58.7% in average, and the treatment at sand soil showed 62.1% that was highest among other soils, which cornflower is possible to winter landscape crop. After flowering of cornflower, the contents of total nitrogen (T-N) and total carbon (T-C) in plant were 15.0 and , respectively, and the carbon-nitrogen ratio (C/N) was 28.6. The yield of cornflower biomass, which will be returned to soil as green manure, recorded at the spring seeding higher than the autumn seeding as , and the biomass treated by soil texture were showed that the treatments at the clay loam had been the largest yields both spring and autumn seeding among at other treatment of soil. The heights of cornflower regardless of soil treatments were 52.8 to 73.6 cm at the autumn seeding and 35.5 to 79.2 cm at the spring seeding although it was more significant variation at the soil textures than the seeding periods. The flowering periods of cornflower ranged from to in May at the autumn seeding and from to in June at the spring seeding, which was faster 30 days approximately at the autumn seeding than the spring seeding. In a view of the cornflower application as green manure after flowering, the autumn seeding, when considered to combine with following crops, was more suitable and various than the spring seeding, even though the yield at spring seeding was higher than one at autumn seeding.
Green manure crop;Landscape;Yield;Cornflower;
 Cited by
지역에 따른 식재가 가든멈 네 가지 품종의 생육에 미치는 영향,이규민;남유경;

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