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전(田)·답토양(畓土壤)의 유효인산(有效燐酸) 분석방법(分析方法) 비교(比較) 연구(硏究)
박백균,윤정희,호교순,Park, Baeg-Gyoon,Yoon, Jung-Hui,Ho, Qyo-Soon 한국토양비료학회 1998 한국토양비료학회지 Vol.31 No.1
토양(土壤)의 유효인산(有效燐酸) 분석방법(分析方法)에 있어서 우리나라 토양(土壤)에 적합(適合)한 인산(燐酸) 분석방법(分析方法)을 확립(確立)하고자 밭토양과 논토양에 각각 옥수수와 벼를 재배(栽培)하여 Lancaster법(法), Olsen법(法), Bray No.1, Bray No.2법(法), Mehlich II 법(法), Calcium lactate법(法) 등(等) 6개 분석방법(分析方法)을 사용한 토양중(土壤中) 유효인산함량(有效燐酸含量)과 식물체중(植物體中) 인산흡수량(燐酸吸收量)과의 관계를 비교 검토하였다. 1. 분석방법을 달리한 밭토양의 유효인산함량(有效燐酸含量)과 옥수수 식물체중(植物體中) 인산흡수량(燐酸吸收量)과의 관계(關係)는 모든 분석방법(分析方法)이 유의성(有意性) 있는 직선회귀(直線回歸) 관계(關係)를 나타내었고, 분석(分析) 방법별(方法別) 결정계수(決定係數)($R^2$) 크기는 Olsen-P $0.891^{**}$, Bray No. 2-P $0.880^{**}$, Lancaster-P $0.878^{**}$, Bray No.1-P $0.792^{**}$, Mehlich II-P $0.787^{**}$, Calcium lactate-P $0.596^{**}$이었다. 2. 논토양중 有效燐酸含量과 벼의 燐酸含量과의 關係에서 밭토양과 달리 Michaelis-Menten 式 ($Y=K_1X/(1+K_2X)$을 따랐으며 (Y, 벼의 燐酸吸收量, X ; 土壤 有效燐酸, K : 係數), 본 식에 따른 決定係數 ($R^2$)는 Lancaster-P $0.923^{**}$, Bray No.1-P $0.919^{**}$, Bray No.2-P $0.914^{**}$, Calcium lactate-P $0.769^{**}$, Olsen-P $0.712^{**}$, Mehlich II-P $0.607^{**}$이었다. To compare different methods for the determination of available soil P in the relationship between the soil P and plant uptake of P, rice and corn were cultivated in the pot filled with soils of different available P contents. The soils were taken from 20 rice fields and 20 upland soils. The available soil P were determined before the experiment by Olsen, Lancaster, Bray 1, Bray 2, Mehlich II and Calcium lactate methods and the correlations between the available soil P measured by different methods and the amount of P taken up by corn at 10 leaf stage and by rice at maximum tillering stage were investigated. In upland soils, the available P measured by all the methods was linearly regressed with high significance to the amount of P taken up by corn. The coefficients of determination($R^2$) in the regression equations ranged from 0.596(Calcium lactate method) to 0.891(Olsen method). In rice soils, the soil available P did not regressed by first-order to the amount of P taken up by rice plant, while Michaelis-Menten equation better explained the relationship between the two parameters. In the Michaelis-Menten equation the coefficients of determination for each analytical method ranged from 0.607(Mehlich II method) to 0.923(Lancaster method). Based upon these observations it is concluded that for testing of available P for corn soils Olsen, Bray 2 and Lancaster methods are equally superior to other methods. For rice soils Lancaster, Bray 1, and Bray 2 methods are better than others.
제주 밭토양에서 가축분 퇴비의 시용에 따른 양분의 이동양상
황기성 ( Ki Sung Hwang ),호교순 ( Qyo Soon Ho ),유봉식 ( Bong Sik Yoo ) 한국환경농학회 2004 한국환경농학회지 Vol.23 No.3
Recently, saw dust manure has been widely used in horticultural crop production in Korea. Animal manure is produced by decaying of livestock manure mixed with saw dust, and contained higher nutrients and ion concentration than the traditional manure made from rice straw and grasses. Therefore, a continuous application of the animal manure disregarding to soil characteristics may be ruined the soil conditions. This study was conducted to investigate the transportation of the nitrogen, phosphate, potassium, and ion concentration of the animal manure applied to volcanic and non-volcanic soils in Jeju island. Soil chemical analysis were done before and 180 days after animal manure application. After animal manure application, NO₃-N moved up to 90 cm in volcanic soil, while the movement was limited to 60 cm in non-volcanic soil. Phosphate concentration was high up to 30 cm, where crop roots are mainly distributed, in volcanic soil, however, the phosphate moved up to 60 cm in volcanic soil. Exchangeable potassium moved up to 90 cm in volcanic soil, but the movement was limited up to 60 cm in non-volcanic soil. For both soil types, no significant different in ion concentrations was observed up to 60 cm in soil depth, though the concentrations were higher in volcanic ash soils as compared to the non-volcanic ash soils.
가축분 퇴비 사용에 따른 밭 토양의 EC 및 질산태질소 함량 변화
황기성 ( Ki Sung Hwang ),호교순 ( Qyo Soon Ho ),김형득 ( Hyoung Deug Kim ),최주호 ( Ju Ho Choi ) 한국환경농학회 2002 한국환경농학회지 Vol.21 No.3
This study was conducted in Jeju Island to find the effects of livestock manure application on the changes in soil salt concentration and NO_3-N contents. Soil samples were collected from Goojua-Tong (volcanic ash soil) and Aewol-Tong(non-volcanic ash soil) to 50 cm depth and were mixed with livestock manure to 20 cm depth in PVC container(30 cm diameter, 1 m height). Animal manures of cattle, pig, and fowl were adjusted to 0, 50, 100, 150 ton/ha. Animal manure applications increased the salt concentrations in soil. The salt concentration was increased as the fowl manure amount was increased. The effects were larger in order of fowl manure > cattle manure ≒ pig manure. NO_3-N content in soil showed a sharp increase by applications of fowl manure, but the increase was slow when the cattle and pig manures were applied. In volcanic ash soil, there was no change in phosphate contents by application of animal manures, but the phosphate contents increased in non-volcanic ash soil with the application of animal manure, especially by fowl manure.
카네이션 , 백합 , 장미 시설재배지 토양중 양분함량 과 품종별 경엽중 양분함량
황기성(Ki Sung Hwang),호교순(Qyo Soon Ho) 한국환경농학회 2000 한국환경농학회지 Vol.19 No.3
This study was conducted to investigate tissue nutrient contents and salt accumulation in plastic house soils cultivating lily, rose and carnation. The soil tested had high total salts, available phosphate and exchangeable potassium. The soil cultivating rose had highest salt concentvation followed by chose of carnation and lily. Tissue nutrient contents of lily were higher than chose of carnation and rose. In comparison among cultivars, the nutrient contents were as follows; `Snow Queen`>`Le Reve`>`Casa Blanca` in lily; `Marina`>`Super star` >`Mary Devor` >`Madelon` in carnation; and `Cocktail`> `Marina>`Maderon` in rose. The range of the nutrient contents were: T-N: 1.66∼2.35%, K: 1.73∼2.23%, Zn: 2.13∼6.43 ㎎/㎏, Cu: 3.79∼13.89 ㎎/㎏ in carnation; T-N: 0.79∼1.65%, P: 0.18∼0.44%, Ca: 0.59∼1.26%, Mg: 0.21∼0.46%, Zn: 23.65∼90.30 ㎎/㎏, Cu: 0.99∼4.62 ㎎/㎏ in lily; and T-N: 0.75∼1.62%, P: 0.17∼0.30%, K: 1.60∼2.91%, Ca: 0.64∼0.94%, Zn: 24.57∼48.31 ㎎/㎏, Cu: 3.10∼9.08 ㎎/㎏ in rose. The amount of nutrients uptake per plant was high in order of: K > T-N > Ca > Mg in lily; and T-N > K > Ca > P > Mg in rose.
퇴비(堆肥) 시용(施用)이 미질특성(米質特性)에 미치는 영향(影響)
李龍煥 ( Lee Yong-hwan ),蘇奎鎬 ( So Kyu-ho ),黃光男 ( Hwang Kwang-nam ),胡敎純 ( Ho Qyo-soon ) 한국유기농업학회 1997 韓國有機農業學會誌 Vol.6 No.1
For the environmental protection, it is more desirable to use compost rather than chemical fertilizer. So in this paper, the effects of compost upon the rice qualiity were investigated with Hwajin Rice as the test variety. The rice quality and physicochemical characteristics were examined and the results are as follows. As to the rice quality, the rate of polished rice was high in the non-fertilizer and the compost plot, the degree of transparency was high in the order of the traditional, the compost+urea, the compost and the non-fertilizer plot. The amylose content (one of the physicochemical characteristies of the rice),the rate of Mg/K, and the adhesivity and the cohesion power (charateristies of texturogram which show the density of boiled rice) were also high in the compost polt. Among the amylogram characteristics, the gelatinization temperature was lowest in the compost plot ; the lowest and the highest degree of viscosity and the break down were also inclined to be higher in the compost plot than in the traditional plot. After the soil test, the components of available phosphorus, organic matters, calcium, magnesium, potassinm and silicate increased in the soil as compared with those before test.