한국토양비료학회지 (Korean Journal of Soil Science and Fertilizer)
- 제14권3호
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- Pages.163-168
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- 1981
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
수도(水稻)에 대(對)한 불화수소(弗化水素)가스 피해경감(被害輕減)에 관(關)한 연구(硏究) II. 소석회(消石灰), 규회석(珪灰石)의 적정시용량(適正施用量)
Studies on the Reduction of Hydrogen Fluoride Damage to Rice Plant II. Optimum Application of Lime and Wollastonite
- Kim, Bok-Young (Institute of Agricultural Sciences) ;
- Han, Ki-Hak (Institute of Agricultural Sciences) ;
- Kwag, Pan-Ju (Kangweon National University)
- 발행 : 1981.11.25
초록
농작물(農作物)에 대(對)한 불화수소(弗化水素)가스의 피해(被害)를 경감(輕減)시키기 위(爲)하여 피해경감제(被害輕減劑)로서 소석회(消石灰) 규회석(硅灰石)을 토양(土壤)에 증시(增施)하여 수도(水稻)를 재배(裁培)하고
The studies were carried out to examine the effect of soil improvement agents, such as lime, wollastonite and phosphate, in reducing the damage caused by hydrogen fluoride gas to the vegetative growth of rice. The yield loss, damage rate of the plant leaves, the fluoride and silicate concentrations of the plants were measured. The results obtained are summarized as follows : 1. Of various levels of added lime and wollastonite, the best were found to be neutralized lime plus lime 150kg/10a, and wollastonite 150kg/10a. 2. Added fluoride increased the fluoride content of the plant and the damage rate of the plant leaves, and the yield was greatly decreased. 3. The silicate concentration at harvesting period was also increased by high amounts of fluoride in the plant during vegetative growth. 4. Increasing the amount of added lime increased the watersoluble silicate concentration in the soil. The silicate content of the plant showed the same tendency.
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