Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Studies on Characteristics of Natural Shell Sand as a Soil Amendment

자연패사(自然貝砂)의 특성(特性)과 토양산도(土壤酸度) 교정력(矯正力)에 관(關)한 연구(硏究) -(제주도(濟州道) 및 진도산(珍島産을) 중심(中心)으로)-

  • Lee, Yun-Hwan (Institute of Plant Environment, Office of Rural Development) ;
  • Han, Ki-Hak (Institute of Plant Environment, Office of Rural Development) ;
  • Park, Young-Dae (Institute of Plant Environment, Office of Rural Development) ;
  • Kim, Bok-Jin (Institute of Plant Environment, Office of Rural Development) ;
  • Hur, Il-Bong (Institute of Plant Environment, Office of Rural Development)
  • 이윤환 (농촌진흥청 식물환경연구소) ;
  • 한기학 (농촌진흥청 식물환경연구소) ;
  • 박영대 (농촌진흥청 식물환경연구소) ;
  • 김복진 (농촌진흥청 식물환경연구소) ;
  • 허일봉 (농촌진흥청 식물환경연구소)
  • Published : 1972.12.31
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Abstract

The characteristic and efficiency of natural shell sand in the coast of Cheju-Do and Jin-Do were studied to apply as agricultural lime for the soil acid adjustment. 1. The alkalinity of shell sand from Cheju coast was higher than that of Jindo and more weathered into fine particles. The particle size distributions of Cheju shell sand were condensed finer particles than 32 mesh in Cheju shell sands and in more coarser particles than 32 mesh in Jindo one. 2. The effect of Cheju shell sand on increasing soil pH value in the upland condition was low at the beginning but more gradually increased after 8 weeks from the treatment than ground lime, and Jindo was very dull during the period of treatment. The commercial lime crushed from Jindo was approximately equal to the ground lime. 3. In the submerged condition, the shell sand of Cheju reacted with soil acid more quickly than ground lime after 2 days, and Jindo was very slow. 4. The relative efficiency of various particle size fraction of the shell sand was superior to the ground lime. The lime particles between 9 to 14 mesh and 20 mesh had more remarkable difference of pH value than other fine particles. The efficiency among finer sizes than 20 mesh particle was approximately equal to each others. 5. The shell sand from the Cheju would be applied directly as agricultural lime without any treatment, and Jindo also can be expected to be effective as agricultural lime with crushing procedure.

해안지방(海岸地方)에 많이 퇴적(堆積)되어있는 패사(貝砂)를 농용석회(農用石灰)로써 이용(利用)할수 있는지 검토(檢討)하고져 제주도연안(濟州道沿岸)과진도해안(珍島海岸)의 패사(貝砂)를 채취(採取)하여 특성(特性) 및 토양산도(土壤酸度) 교정효과를 시험(試驗)한 결과(結果) 1. 제주도(濟州道) 패사(貝砂)는 진도산(珍島産)보다 알카리도가 높고 풍화(風化)가 더 진행(進行)되었고 입도(粒度)가 $33{\sim}48$목(目)에 대부분(大部分) 분포(分布)되었으며 진도산(珍島産)은 32목(目)보다 큰 입자(粒子)가 대부분(大部分)이 었다. 2. 밭상태(狀態)에서 제주도(濟州道) 패사(貝砂)의 토양산도(土壤酸度) 교정효과(矯正效果)는 초기(初期)는 살물석회(撒物石灰)(자연석회(自然石灰))보다 낮았으나 8주후(週後)부터 는 우수(優秀)하였고 진도패사(珍島貝砂)는 교정효과가 매우 완만(緩慢)하였으며 이를 분쇄(粉碎)한 제품(製品)은 살물석회(撒物石灰)와 비슷하였다. 3. 논상태(狀態)에서의 토양산도교정효과는 처리(處理) 2일후(日後)부터 제주도산(濟州道産)이 살물석회(撒物石灰)보다 빨랐으며 진도산(珍島産)은 매우 완만(緩慢)하였다. 4. 각(各) 입도별(粒度別) 교정효과(嬌正效果)는 농용석회(農用石灰)보다 패사(貝砂)의 효과가 우수하며 9-14목(目)의 입자(粒子)와 작은 입자(粒予)와의 효과차이(效果差異)는 크나 20목(目)에서 >100 목(目)까지의 큰차이가 없었다. 5. 제주도(擴州道) 패사(貝砂)는 풍화도(風化度)나 그 교정효과(嬌正效果)로보아 농용석회(農用石灰)로써 직접이용(直接利用)할수있으며 진도산(珍島産)은 입도(粒度)를 가늘게 하면 사용(使用)할수 있을것으로 기대(期待)된다.

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