Potassium (K) is an element essential for plant growth. This study was aimed to examine the effects of three formulations of potash feldspar, powder, sand, and granule type on the growth of radish and beet in organic farming. 0.1% three formulations of potash feldspar were treated on the soil before transplanting 15 days-old seedlings of radish and beet in greenhouse. The results showed that all kinds of potash feldspar significantly increased shoot and root growth, and soluble solid contents excepted for root hardness in radish and beet. Among them, the powder type of potash feldspar was the most effective on foliage and root growth of radish and beet. Based on the results, it was confirmed that 0.1% potash feldspar treated in the rhizosphere of radish and beet can promote the growth of them.

Ⅰ. 서 론
 Ⅱ. 재료 및 방법
  1. 식물 및 재배
  2. 광물성 카리장석의 제형별 이화학성
  3. 카리장석의 처리 및 생육조사
  4. 카리장석이 무의 뿌리발달에 미치는 영향
  5. 통계분석
 Ⅲ. 결과 및 고찰
  1. 광물성 카리장석의 이화학성
  2. 카리장석이 비트와 무의 생육에 미치는 영향
  3. 카리장석이 무와 비트 뿌리의 경도 향상에 미치는 영향
  4. 카리장석이 무의 뿌리 발달에 미치는 영향
 Ⅳ. 적 요
 References

• 심창기(농촌진흥청 국립농업과학원 유기농업과) | Shim Chang-Ki
• 김민정(국립농업과학원 유기농업과) | Kim Min-Jeong Corresponding author
• 김용기(농촌진흥청 국립농업과학원 유기농업과) | Kim Yong-Ki
• 홍성준(농촌진흥청 국립농업과학원 유기농업과) | Hong Sung-Jun
• 박종호(농촌진흥청 국립농업과학원 유기농업과) | Park Jong-Ho
• 한은정(농촌진흥청 국립농업과학원 유기농업과) | Han Eun-Jung
• 김석철(농촌진흥청 국립농업과학원 유기농업과) | Kim Seuk-Chul
• 이승복(홍성군 농업기술센터) | Lee Sung-Buk