• Title, Summary, Keyword: 입상비료

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배합비료 현황

  • 한국비료공업협회
    • 비료회보
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    • pp.11-16
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    • 2004
  • 전 세계적으로 입상 배합비료의 형태로 농작물 재배업자들에게 전달되는 비료의 비율은 지난 30년간 꾸준히 증가했다. 앞선 기술을 개발하고 있는 미국에서는 비료 생산 및 유통에 관한 경제학으로 인해 특히 입상 배합비료(BB)가 촉진되고 있으며, 현재 전국에 걸쳐 5,000 곳의 혼합설비가 산재해 있다. 혼합 기술의 주요 공급업체인 A.J. Sackett & Sons Co.의 프로젝트 엔지니어인 찰스 포어미사니도 설명한 것처럼, 혼합에는 농경법의 측면이나 경제적인 측면에서 여러 가지로 유리한 점이 있다.

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Characterization of Granular Fertilizer Produced by Fly Ash from a Sewage Sludge Incinerator (하수슬러지 소각 비산재를 이용한 입상비료 조립 및 특성분석)

  • Kim, Seong-beom;Lee, Wontae
    • Journal of Korean Society of Environmental Engineers
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    • v.38 no.10
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    • pp.574-579
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    • 2016
  • This study assessed feasibility of making granular fertilizer with fly ash from a sewage sludge incinerator in Korea. Composition, characteristics, strength, and heavy metal contents of the granular fertilizers were investigated. Due to its high contents of phosphorus, fly ash from a sewage sludge incinerator could be used to make fertilizers. Granulation rates (2-4 mm granules) over 80% could be achieved as the fly ash contents were 15% or less of the fertilizer. Leaching tests of the fertilizers, based upon the Korean Standard Methods for Solid Wastes, showed the concentrations of heavy metals less than the risk limits. However, contents analysis of the fertilizers, based upon the Korean Standard Methods for Soils, experienced higher levels of heavy metals than the risk limits as the fly ash content exceeded 7% of the fertilizer. Thus, the fly ash needs to be added less than 7% of the fertilizer if there is no pretreatment to remove heavy metals.

Comparison of Application Effects among Three Products of Granular Fused Magnesium Phosphate on Soybean Cultivation (대두(大豆)에 대한 입상(粒狀), 용성인비(熔成燐肥) 제품간(製品間)의 비효(肥效) 비교(比較))

  • Lim, Dong-Kyu;Kim, Seok-Cheol;Song, In-Kwan;Moon, Jae-Hyon;Choi, Du-Hoi;Kang, Hang-Won;Jung, Yeun-Tae
    • Korean Journal of Soil Science and Fertilizer
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    • v.29 no.3
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    • pp.255-263
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    • 1996
  • This study was conducted to evaluate the application effects of three different granular fused magnesium phosphate products on soybean in a volcanic ash upland soil(Namweon series) of Cheju island. They were two domestic products(Kyunggi Chemical Industrial Co., LTD, Pungnong Biryo Industrial Co., LTD) and an imported Chinese product that were manufactured from different added materials. A powder fused magnesium phosphate. a single superphosphate(water soluble phosphatic fertilizer) and a fused superphosphate(mixed water soluble phosphate and 2% citric acid soluble phosphate) were presented as check fertilizers. Yield of soybean was the highest in the Pungnong product of granular fused magnesium phosphate. the next was the Chinese product imported and the Kyunggi product was the lowest but there was no statistical significance among the three granular products of fused magnesium phosphate. There was no clear tendency between yield and yield components of soybean plant however, the effects on the number of mainstem nodes, number of branches nodes and number of pods per plant were observed in the increased yield treaments. Phosphate concentration in stems and pods of soybean plant at harvesting stage was higher than those in stems of soybean plant during growing period. Uptake amounts and recovery rates of phosphate in stems and pods of soybean plant at harvesting stage were similar with the yield increasing tendency on soybean. In the changes of soil pH at different periods, the application of phosphatic fertilizers was increased soil pH. Soil pH in Chinese product was higher than domestic products, but it was similar to single superphosphate. The available silicate concentrations of soil were higher in the plot of Pungnong product than Chinese product.

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Effect of Artificial Granular Zeolite(AGZ) on Purification of Heavy Metals in Wastewater and Alleviation or Rice Seeding Growth Damage (입상 인공제올라이트를 이용한 중금속 폐수 정화와 벼 유묘 생육장해 경감)

  • Lee, Deog-Bae;Lee, Kyeong-Bo;Lee, Sang-Bok;Kim, Jae-Duk;Henmi, Teruo
    • Korean Journal of Soil Science and Fertilizer
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    • v.32 no.4
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    • pp.446-451
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    • 1999
  • This study was carried out to investigate some mineralogical characteristics of Artificial Granular Zeolite (AGZ) and effect of AGZ on purification and alleviation of rice seedling damages of mine wastewater containing heavy metals. AGZ had mainly representative Na-P1 peaks and some $C_3S$ peaks of Portland cement in X-ray diffractogram. Differential thermal analysis represented that AGZ had weak endothermic peak around $130^{\circ}C$ and new deep endothermic peak around $750^{\circ}C$ as compared to powdery artificial zeolite. The ranking of heavy metals removals by AGZ, was lead> copper> cadmium> zinc in the synthetic wastewater. Root growth of rice seedling was greatly inhibited in the mine wastewater, and died after all. As AGZ treated into the mine wastewater with the ratio 1 : 50 (W : V) for one day or 1 : 100 for 4 days, the concentrations of heavy metals in the mine wastewater were decreased to below the critical concentration for agricultural use. And rice seedlings were grew with little damages in the purified water by AGZ.

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Effect of Water Soluble Silicate Fertilizers on Stem Strength and Yield of Paddy Rice (수용성 규산질 비료의 시용에 의한 벼 줄기 강도 강화와 수량에 대한 효과)

  • Lee, Seung Been;Joo, Jin Ho;Shin, Joung Do;Kim, Chang Gyun;Jung, Yeong Sang
    • Korean Journal of Soil Science and Fertilizer
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    • v.45 no.6
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    • pp.1017-1021
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    • 2012
  • A field experiment was conducted to evaluate effect of water soluble silicate fertilizer (WSS) application on rice plants with respect to comparing with powdery slag-originated silicate fertilizer (PSS) and granular one (GSS). The 30-day seedlings were transplanted on May 10, 2012. The plot size was $25m^2$, and the planting density was 15 hills $m^{-2}$. The standard application level was $2kg\;ha^{-1}$ for WSS, $200kg\;ha^{-1}$ for GSS, $200kg\;ha^{-1}$ for GSS. The application rates were 50 %, 100 %, and 200 % of the standard levels. The soil and plant samples were taken after harvest on September 10. Strength weight of the stem was measured on the center of the 5-cm of the fourth internode. Nutrient contents and yield of grains and were evaluated. The strength weight of the stem was positively correlated with the silicate content of the stem with the highly significant $R^2$ of 0.601. The strength of the stem was satisfactorily enforced by application of 50 % WSS and GSS, and 100 % PSS. Application of 50 % or 100 % of WSS showed little difference in rice yield in comparison with application of 100 % of PSS or GSS. Therefore, application of $20kg\;ha^{-1}$ of WSS would be recommendable for rice cultivation which enforced stem strength, and increased yield of rice.

Effect of the Late Fall Fertilization and Snow Cover Period on Spring Greenup of Creeping Bentgrass at Following Year (늦 가을철 시비와 적설로 인한 크리핑 벤트그래스의 이듬해 봄철 생육)

  • Lee, Duk-Ho;Jeon, Jun-Ki;Joo, Young-Kyoo
    • Asian Journal of Turfgrass Science
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    • v.23 no.1
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    • pp.123-132
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    • 2009
  • This study was designed to investigate the effect of the late fall fertilization applied with methyl urea(MU), compound chemical fertilizer(CF), humate(HM), and organic compost fertilizer(NS) on spring greenup of creeping bentgrass at following year. The plots were treated with various snow cover periods before transforming to ski slopes from golf holes during 2007 fall to 2008 spring. The highest visual quality and greenup rate were shown on MU or HM applications at 10 days before snow cover treatment. The CF treatment which had a highest phosphorus rate was most effective with a 13 cm of root length at the reconversion date to golf hole from ski slope of the following spring. However, the application of CF followed by immediate snow cover showed the worst results on visual quality and green color caused by a leaf burning damage from the residual effect of CF. At least 10 days were required to avoid phytotoxicant from undissolved granular of CF before snow cover practise. The application of NS showed the highest result on leaf dry weight at no snow cover plot in next spring, but not on green color and visual quality. Therefore, the proper interval period of snow cover after late fall fertilization should be an important management skill on the spring greenup of creeping bentgrass on following year transforming from ski slope to golf hole.

Engineering Performance and Applicability of Environmental Friendly Porous Concrete for a Marine Ranch Using Steel Industry By-products (철강산업 부산물을 활용한 해양목장 조성용 친환경 다공질 콘크리트의 공학적 성능 및 적용성)

  • Lee, Byung-Jae;Jang, Young-Il;Kim, Yun-Yong
    • Journal of the Korea Concrete Institute
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    • v.25 no.1
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    • pp.115-123
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    • 2013
  • The steel industry, a representative industry that significantly consumes raw materials and energy, produces steel as well as a large amount of by-product steel slag through the production process. The vast habitat foundation of marine life has been destroyed due to recent reckless marine development and environment pollution, resulting in intensification of the decline of marine resources, and a solution to this issue is imperative. In order to propose a method to recycle large amounts of by-product slag into a material that can serve as an alternative to natural aggregate, the engineering properties and applicability for each mixing factor of environment friendly porous concrete as a material for the composition of marine ranches were evaluated in this study. The test results for percentage of voids per mixing ratio revealed that the margin of error for all conditions was within 2.5%. The compressive strength test results showed that the most outstanding environmental friendly porous concrete can be manufactured when mixing 30% slag aggregate and 10% specially treated granular fertilizer for the optimum volume fraction. As concrete for marine applications, the best seawater resistance was obtained with mixing conditions for high compression strength. An assessment of the ability to provide a marine life habitat foundation of environmentally friendly porous concrete showed that a greater percentage of voids facilitated implantation and inhabitation of marine life, and the mixing of specially treated granular fertilizer led to active initial implantation and activation of inhabitation. The evaluation of harmfulness to marine life depending on the mixture of slag aggregate and specially treated granular fertilizer revealed that the stability of fish is secured.

Granulation of Artificial Zeolite for the Simultaneous Removal of Nitrogen and Phosphorous from the Wastewater (질소, 인 동시 제거용 입상 인공제올라이트 제조)

  • Lee, Deog-Bae;Lee, Kyeong-Bo;Han, Sang-Soo;Henmi, Teruo
    • Korean Journal of Soil Science and Fertilizer
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    • v.31 no.1
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    • pp.67-71
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    • 1998
  • This study was carried out to granulate artificial zeolite powder that remove ammonium nitrogen and phosphorous simultaneously in wastewater treatment. Optimum water content was required for 30 percent volume to granulate artificial zeolite with 1.7mm diameter and 1~2cm length using granulator. Portland cement could remove much $NH_4{^+}$ and $PO_4{^{3-}}$ from the wastewater than other binding materials. Mixed 33, 25. 20. 16 percent of portland cement to artificial zeolite powder(v/v), cation exchange capacity of the granulars were 66.5, 81.4, 126.8, $151.2cmol^+kg^{-1}$ and hardness of that were 176.1, 24.4, 4.1, $0.4kg\;cm^{-2}$, respectively. Content of portland cement in the granular were related with removal of $PO_4{^{3-}}$ positively and that of $NH_4{^+}$ negatively. Shaked 1g of the granulars that made of portland cement 33 percent with 40ml synthetic wastewater containing $NH_4{^+}$ $1545mgl^{-1}$ and $PO_4{^{3-}}$ $417mgl^{-1}$, 99.4 percent of $NH_4{^+}$ and 90.3 percent of $PO_4{^{3-}}$ were removed simultaneously after 48 hours shaking. The longer shaking, the more $NH_4{^+}$ and $PO_4{^{3-}}$were removed. The artificial zeolite granular had both micropore and macropore that could be useful in the wastewater purification.

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Adsorption Behavior of Organic Dye on Granular Clay (입상점토광물에 대한 염료폐수의 흡착)

  • Lee, Tack-Hyuck;Youn, Guk-Jung;Kim, Seon-Tae
    • The Journal of Natural Sciences
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    • v.13 no.1
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    • pp.35-50
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    • 2003
  • Granular clay minerals for adsorption of the organic dye prepared a Na-Bentonite and optimum condition calcined temperature $700^{\circ}C$ and polyvinyl alcohol quantity was 25%. Granular clay mineral stable range was pH3 to pH9 and specific area was $83m^2/g$. The adsorption of the organic dye on the Granular clay mineral showed result good adsorption with acid medium and then enthalpy was -3.36 ~ -0.84 kcal/mol. It was exhibit typical physical adsorption.

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Effectiveness of Regranulized Fused Phosphate Containing Boron and Compound Fused Phosphate on the Growth and Yield of Soybean (대두(大豆)에 대(對)한 함붕소립상용인(含硼素粒狀熔燐) 및 복합비료(複合肥料)의 비효에 관(關)하여)

  • Ha, Ho-Sung;Lee, Yun-Hwan
    • Korean Journal of Soil Science and Fertilizer
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    • v.11 no.1
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    • pp.43-50
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    • 1978
  • In order to compare the effectiveness of different phosphorus forms (pulverized as regranulized) and formulars (compound fertilizers) of fused phosphate and to compare the effectiveness of boron from different forms (straight borax, granulized with fused phosphate and included in compound fertilizer), a field experiment was conducted on a relatively fertile upland soil using soybean as a test crop. Results are summarized as following. 1. Yield of soybean was significantly higher in the plots fertilized with P when compared to check plot (no p). However, no significant differences were observed among the different forms or formulars of fused phosphate, indicating that the regranulization or formulation of compound fertilizer did not influence the effectiveness of phosphorus. 2. The application of boron, regardless of its formular, brought about higher B content in plant tissue and higher grain yield. There was a tendency that boron contained in ragranulized fused phosphate was more effective than straight borax. The results also indicated that when boron is to be included in NPK compound fertilizer, its content should be at the least 1.5% as $B_2O_3$. 3. The effectiveness of boron appeared as increased number of pod, higher B, and Ca contents in plant and the amounts of uptake of these elements by soybean. 4. The analysis of soil after the experiment indicated that different forms or formulars of fused phosphate were similarly effective in increasing the available P, Ca, and Mg contents in the soil. 5. Slight increase in available B contents in the experimental plot soils applied with boron fertilizer was observed after the trial.

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