Soil Physico-chemical Properties of Red pepper Fields and Plant Growth

밭토양(土壤) 물리성(物理性)과 고추 생육(生育)과의 상관(相關) 연구(硏究)

  • Published : 1987.09.30

Abstract

This study was conducted to find out the optimum ranges of soil physical properties for red pepper growth by characterizing the relationship of soil physical properties and plant growth. Various environmental factors and soil physico-chemical properties and red pepper growth were investigated at 94 farmers fields in red pepper-growing area. Soil texture of the red pepper fields were mainly coarse loamy covering 72% of surveyed fields. Available soil depth, plowing layer and root zone were deeper, but bulk density and hardness of soils were lower in the area where red pepper grew well. The optimum ranges of soil three phases were identified as the solid phase below 50%, liquid phase above 10% and sir phase above 20%. The various soil physical properties were closely related with plant growth of red pepper which were highly influenced in order of available depth>bulk density>plowing layer>hardness>slope.

고추 재배지(栽培地) 토양(土壤)의 물리성(物理性) 적정(適定) 범위(範圍)와 지력판정(地力判定)을 위(爲)한 기초자료(基礎資料)를 얻고저 전국(全國) 주요(主要) 고추 주산단지내(主産團地內) 94개(個) 포장(圃場)에서 포장환경(圃場環境), 토양(土壤)의 물리화학성(物理化學性) 및 생육(生育)을 조사(調査), 분석(分析)한 결과(結果)는 다음과 같다. 고추 재배토양(栽培土壤)은 전체(全體)의 72%가 사질(砂質) 토양(土壤)이었다. 고추 작황(作況)이 양호(良好)할수록 작토심(作土深), 유효토심(有效土深) 및 근권심(根圈深)이 깊었고 가비중(假比重)과 경도(硬度)는 낮았다. 고추 생육(生育)에 적당(適當)한 토양(土壤) 삼상(三相) 범위(範圍)는 고상(固相) 50%이하(以下), 액상(液相) 15%이상(以上), 기상(氣相) 20%이상(以上)이었다. 고추 생육(生育)은 작토심(作土深), 유효토심(有效土深), 근권심(根圈深), 경도(硬度), 가비중(假比重), 유효인산(有效燐酸)과 높은 상관관계(相關關係)가 있었다. 고추 작황(作況)을 저해(沮害)하는 요인(要因)은 유효토심(有效土深)>가비중(假比重)>작토심(作土深)>경도(硬度)>경사(傾斜)의 순(順)이었다.

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