열무 생육을 통한 유황벤토나이트 혼합 비료의 효과
Effects of Sulphur Bentonite Mixture Fertilizer for the Growth of Young Radish (Raphanus sativus L.)
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유황과 벤토나이트의 특성을 고려하여 적정 비율로 혼합한유황벤토나이트 혼합비료를 기비로 1000 ㎡당 3 ㎏과 6 ㎏, 그리고 무처리로 구분하여 시비하고 열무를 재배하여 토양의 화학성 변화와 작물생육의 효과를 시험하였다. 그 결과 토양의 pH는 시비량이 증가할수록 약간씩 낮아지는 경향을 보였으나 큰하락을 나타내지 않았다. 토양내 전질소 함량은 6 ㎏/1000 ㎡처리구에서 700 ㎎/㎏으로 가장 높았으며, 유기물 함량은 3 ㎏/1000 ㎡ 처리구에서 1.29%로 가장 높았다. 토양중 유효인산의함량은 시비량의 증가에 따라 높아져 6 ㎏/1000 ㎡ 처리구에서289 ㎎/㎏으로 조사되었다. 열무의 지상부는 3 ㎏/1000 ㎡ 처리구, 지하부는 6 ㎏/1000 ㎡ 처리구에서 더 크게 생장하였다. 따라서, 유황벤토나이트 혼합비료의 시비시 토양 화학성 및 작물생육 증진에 효과가 있는 것으로 판단된다.
Abstract
Field study was conducted to evaluate the agronomic effectiveness of sulphur-bentonite fertilizer. Soil pH was slightly lower tendency to the increase of sulphur-bentonite fertilization, but did not indicate a sharp decline in soil pH. The T-N contents in the 6 ㎏/1000 ㎡ plot was higher to 700 ㎎/㎏ and the organic matter content was 1.29% in the 3 ㎏/1000 ㎡ plot. The content of available-P was also increased to 289 ㎎/㎏ in the 6 ㎏/1000㎡ plot. The growth characteristics of the young radish (Raphanus sativus L.) has significantly more in 3 ㎏/1000 ㎡ plot on upper part, and more on under part in 6 ㎏/1000 ㎡ plot. Therefore, it is concluded that the application of sulphur-bentonite fertilizer was thought to be effective for the chemical characteristics of soil and crop growth enhancement.
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