• Journal of Bio-Environment Control
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• v.15 no.4
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• pp.396-399
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• 2006

This study was conducted to investigate the desalinizing effect of some vegetable crops (beet, crown daisy, kale, lettuce, spinach, sweet com, and tomato) in salinized soil. The soil was treated with highly concentrated nutrient solutions and the growth of these crops was compared and soil salinity was monitored. The plant height of lettuce and crown daisy inhibited severely in with EC $5dS{\cdot}m^{-1}$ salinized soil. Soil EC level was the lowest in soil where tomato was cultivated followed by corn and kale. The residual level of $NO_3$ was higher in soils used for cultivation of corn, tomato, and kale, that of K was higher in soils used for cultivation of corn, tomato, and beet, and That of $P_2O_5$ was higher in soils used for cultivation of corn and tomato. Although the desalinizing effect was greatest by tomato and corn after 60 days of cultivation. Quality of the these crops was low and the cultivation periods of these crops overlapped with that of the main crops. Kale, on the other hand showed less growth inhibition in salinized soil, greatest desalinating effect based on fresh weight. In addition this crop only needs 30 days of cultivation period. Therefore, kale was most efficient crop in desalinizing considering crop quality, a short cultivation period, and nonoverlapping cultivation time with the main crops.

• Proceedings of the Korean Society of Crop Science Conference
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• 2023.04a
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• pp.38-38
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• 2023

• Proceedings of the Korean Society of Crop Science Conference
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• 2023.04a
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• pp.39-39
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• 2023

• Proceedings of the Korean Society of Crop Science Conference
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• 2021.10a
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• pp.94-94
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• 2021

• Korean Journal of Soil Science and Fertilizer
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• v.33 no.3
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• pp.182-192
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• 2000

The objective of this study was to determine the effects of various kinds of composts on the amount of maximum composts in upland soils. Field experiments were conducted in the loam and sandy loam soils. Various kinds of composts such as poultry manure compost(PMC), cow manure compost(CMC), human excrement sludge(HES), and food industrial sludge compost(FISC) were applied annually at rates of 0, 40, and $80Mg\;ha^{-1}$ to soils grown with soybean and maize plants for 4 years during 1994 to 1997. The results of this study were as follows : Maize dry matter production was related linearly positively with application amount of compost, but soybean dry matter production was showed an apex at $60Mg\;ha^{-1}$, maize produced 4.7 times dry matter as compared to soybean. Rate of nitrogen utilization of maize were 21~31% and that of soybean were 8~19%, rate of phosphorous utilization of maize were 5~7% and that of soybean were l~2%. On the basis of biomass maximum application rates of poultry manure compost were $39{\sim}47Mg\;ha^{-1}$ for maize cultivation and $8{\sim}13Mg\;ha^{-1}$ for soybean cultivation. On the other hand those amounts estimated by nitrogen requirement of crops were 39~47 and $8{\sim}13Mg\;ha^{-1}$ for maize and soybean cultivation, respectively. Based on phosphorous requirement of crops those were 29 and $14Mg\;ha^{-1}$ for maize and soybean cultivation, respectively. Considering the upper limit of the base saturation percentage to be 80%, maximum application rates were 63~93 and $49{\sim}69Mg\;ha^{-1}$ in loam and sandy loam soil, respectively.

• 농업기술회보
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• v.51 no.5
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• pp.23-24
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• 2014

농촌진흥청 국립식량과학원 전작과에서는 식용옥수수의 다양화를 통해 농가 소득을 창출하고 다양한 소비자의 기호를 만족시키기 위하여 재배안정성이 뛰어나고, 품질이 우수한 식용옥수수 개발에 박차를 가하고 있다. 단옥수수보다 당도가 높고 초당옥수수보다 발아율이 향상된 단옥수수 개발을 목표로 노력한 결과 2009년 구슬옥, 2011년 고당옥에 이어 2013년 허니골드 1호를 개발하게 되었다.

• 식품문화 한맛한얼
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• v.1 no.3
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• pp.30-33
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• 2008

최근 전분당업계에서 전분당의 원료로 그동안 수입하던 일반 옥수수 대신 유전자 재조합 옥수수를 수입하면서 유전자 재조합 식품에 대한 논란이 다시 가열되고 있다. 1996년 유전자 재조합 콩이 처음 상업적으로 재배된 지 10년이 지났지만 유전자 재조합 식품에 대한 논란은 아직도 계속되고 있다. 이런 상황에서 우리나라에서는 유전자 재조합 식품을 어떻게 관리하는지 살펴본다면 유전자재조합 식품을 이해하는데 많은 도움이 될 것이다.

• Proceedings of the Korean Society of Crop Science Conference
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• 2019.04a
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• pp.90-90
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• 2019

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.04a
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• pp.39-39
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• 2022

• Journal of The Korean Society of Grassland and Forage Science
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• v.32 no.3
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• pp.285-292
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• 2012

This experiment was carried out to determine the harvesting day after heading of barley for highest total forage yield in double cropping with corn at paddy field in middle region. The fresh barley yield was the highest at the harvest of 20 days after heading, but the dry matter yield and TDN yield were the highest at the harvest of 25 days after heading because of higher dry matter rate. The dry matter yield of corn after the harvest of 25 days after heading was decreased about 16 percent than that of the check, sowing on april 25. But total fresh yield of corn monoculture was lower about 31 percent, and decreased 28 percent of dry matter and 23 percent of TDN yield, respectively, than that of the double cropping system with corn and barley. In double cropping system at paddy field, the total forage yield was the highest at the harvest of 25 days after heading of barley and grew corn subsequently. Although yield of corn was reduced by late sowing, the total forage yield was increased by double cropping system compared with corn monoculture.