본 시험은 석회(0, 250, 1,000kg/10a)와 인산(0, 17 및 34kg/10a)t용이 alfalfa의 생장 및 질소고정에 미치는 영향을 구명하기 위하여 전남대학교 농과대학내 온실에서 pot로 수행되었는데 그 결과를 요약하면 다음과 같다. 실험기간동안 alfalfa의 지상부와 지하부의 건물중, 근류중량 및 acetylene환원력은 pH6.2인 토양에서 석회시용 효과가 인정되지 않았지만, 인산시용 효과는 인정되었다(p<0.05). 파종 후 7주

For the purpose of producing emulsified fire proofing agent for synthetic fibers, 2,3-dibromopropylmonoamido orthophosphate[DP-AOP] and bis(2,3-dibromopropyl)monoamidoorthophosphate[(DP)2AOP] were synthesized, and their structures were identified by instrumental analysis, respectively. Using three kinds of emulsifiers, O/W emulsified fire proofing agents, DPF and DPDPF, were obtained corresponding to DP-AOP and (DP)2-AOP, respectively. Various synthetic textiles were fire-retardant treated by prepared DPF and DPDPF, and fire retardancy and tearing strength of the resulting products were tested. The results showed that as the concentration of fire proofing agents increased, fire retardancy increased, but the tearing strength much decreased, where the tendencies of DPDPF were deeper than those of DPF. But, since the fire retardancy appeared favorable in the range of 10~20wt% of DPDPF, DPDPF is proven to be a fire proofing agent useful for various synthetic textiles.

To find out the effects of phosphatic fertilizer application level on the dry matter yield and nutrient contents of grasses, this experiment was arranged as a randomized complete block design with six treatments(0, 50, 100, 150, 200 and 250kg / ha) and co

본 시험은 초지조성시와 관리시에 시용하는 인산질 비료의 시용이 초지식생, 목초 및 토양의 무기물함량에 미치는 영향을 구명코자 무시용구의 3처리를 난괴법 3반복으로 포장 배치하여 1989년 9월부터 1991년 10월까지 수원 근교에서 수행되었던 바, 그 결과를 요약하면 다음과 같다. 1. 인산질 비료 무시용구의 식생은 불량하였으며 인산시용에 의해서 두과 목초의 비율이 증가되었는데 특히 초지관리시의 인산효과가 현저하였다. 2. 목초의 무기물 함량중 질소,

본 시험은 석회(0, 250, 500, 1,000kg/10a)와 인산(0, 17, 34kg/10a) 시용이 alfalfa(Medicago sativa L.)의 생장 및 질소고정에 미치는 영향을 구명하기 위해 전남대학교 농과대학내 온실에서 pot로 수행되었다. 파종후 9과에 alfalfa의 지상부와 지하부의 건물중 및 아세틸렌 환원력에 있어서 석회 및 인산시용효과가 나타났으며(p<0.05). 파종후 14과(개화초기)에는 alfalfa의 지상부와 지하부의

With a purpose of finding out the effects of phosphatic fertilizer application at the grassland establishment and management on the dry matter yield and quality of grasses, a field experiment was arranged with four treatments as a randomized complcte bloc

겉뿌림 산지초지의 조성, 수량, 식생 및 목초품종등에 미치는 3요소(N--O: 0-0-0; 0-10-10; 6-15-15; 12-20-20; 24-25-20 kg/10a/year)와 소석회(0, 250kg/10g; 조성시만 시용)의 시용효과를 구명하는 10년간 시험후, 별도로 토심별 토양의 화학성(I보; pH, OM, T-N, 유효 , 흡수계수, 석회소요량. II보: 치환성 Ca, Mg, K, Na 및 CEC, 염기포화도, 토양보존)을 조사하여 검토하

인의 식물체로 부터 토양으로의 주요 환원경로인 litter의 분해과정에 관해서 조사하였다. 즉 생활형이 다른 Miscanthus sinensis. SaSa palmalta, Artemisia princeps 및 Polygonim thunbergii 군락에 있어서 litter로서 공급되어지는 총 낙엽량과 litter 존재량으로부터 litter의 소실속도를 구하였고, 또한 군락하에 nylon mesh bag 중에 litter를 집어 넣은 litter bag

본 연구는 제주도에 있어서 인산 시용량 차이가 (0,4,8,16,32kg/10a) 사료용 청예동부의 수량 등 형질변화에 미치는 영향을 구명하기 위하여 수행하였으며, 그 결과는 다음과 같다. 1. 초장, 생초중,경중, 엽중, 엽수, 주경절수, 1차분지수,협수. 협중 등은 조사시기에 관계없이 인산시비량이 증가할수록 증가되었다. 2. 초장 및 주엽절수는 8월 25일 이후 증가가 없었고 경중 및 생체중은 시비량에 관계없이 8월 25일 (파종후 60일)에 가장

Phosphorus(P) cycle of Miscanthus sinensis, Sasa palmata and Artemicia princeps for perennial plants and Polygonwn thunbergii for annual plant were investigated in natural plant communities established in Andosol region. 1. Perennial plants contained abou

This study was carried out to determine the effects of lime(0, 300 kg/lOa) and phosphate application( 0, 20, 40, 80 kg/lOa) on mineral contents in herbage when 5 pasture species(orchardgrass, tall fescue, perennial ryegrass, redtop and ladino clover) were

자연군락에 인산비과를 시용하여 토양용액중의 인산농도를 높일 경우, 일년생 및 다년생식물의 초장, 건물량의 반응성을 조사하였다. 또한, Italian ryegrass를 자연군락중에 파종하여, 그 후의 정착과 성장에 미치는 인산비과의 영향을 조사함으로서 일년생식물과 다년생식물과의 경쟁관계에 미치는 토양중 인산 농도의 영향을 검토하였다. 다년생식물인 MIscanthus, SaSa 및 Artemisia군락에서는 초장, 건물량에 대한 인산 시비의 효과는 작었지만

일년생과 다년생식물의 생육환경으로써 토양인산 수준의 영향에 관하여 검토하였다. 1. 일년생의 IRG(Italian ryegrass)와 다년생의 PRG (Perennial ryegrass) 모두 인산시비량이 많을수록 초장이 길어지는 경향을 나타내었다. 2. 2년차 이후는 모든 처리구에서 PRG가 IRG에비하여 건물량이 많았다. 3. 다P처리에 대한 무P처리의 P수량 비율은 1년째부터 3년째에 걸쳐 IPG의 경우 건물량과 같이 매년비율이 커지는 것에 대하여

The effects of six kinds of phosphate complex on the water holding capacity (W.H.C) and protein solubility of hair tail, yellow tail runner and dried pollack meat paste were investigated and animal meat(pork, chicken and hare meat complex). The formulation of six kind of phosphate complex employed to this experiment were made by mixing several phosphate such as sodium polyphosphate, sodium pyrophosphate, sodium acid pyrophosphate, potassim pyrophosphate, sodium ultra-meta-phosphate, sodium-tetra-phosphate and monoglyceride at different mixture ratio. Among the six kinds of phosphate complex, phosphate B complex which was formulated by mixing sodium polyphosphate 40%, sodium pyrophosphate 30%, sodium tetra mata phosphate 10%, sodium ultra meta phosphate 10% was most effective on enchanging the W. H. C. and protein solubility of hair tail, yellow tail runner dried pollack meat past and in case of pork, chicken and hare meat paste. Phosphate C complex which was formulated by mixing sodium polyphosphate 50%, sodium pyrophosphate 30%, sodium tetra meta phosphate 10%, potassium pyrophosphate 10%, was more effective them other phosphate complex, and thier optimum addition level was 0.5% respectively in weight of fish meat paste. Texture characterstics such as hanrdness, cohesiveness and springiness value of Kamaboko(fish meat and pork, chicken, hare meat complex past meat product) were evaluted as best when 0.5% of phosphate B complex was added. The optimum cooking condition of Kamaboko to get good texture was heating for 20 minutes at 120℃.

Optical resolution of aminoalcohols had been achived efficiently by use of (R)-2,2'-dihydroxy-l,1'-binaphtholphosphoric acid as the resolving agent in various organic solvents. Racemic aminoalcohols were resolved very easily and high enantiomer yield (about 70% e,e) in THF. On the other hand, absolute configuration of resolved aminoalcohol was (R)-configuration but one of the Valinnol and Phhenylglycinol was anti-type because of sterichindrance.Optical resolution of aminoalcohols had been achived efficiently by use of (R)-2,2'-dihydroxy-1,1'-binaphtholphosphoric acid as the resolving agent in various organic solvents. Racemic aminoalcohols were resolved very easily and high enantiomer yield (about 70% e,e) in THF. On the other hand, absolute configuration of resolved aminoalcohol was (R)-configuration but one of the Valinnol and Phhenylglycinol was anti-type because of sterichindrance.

Influence of mixing ratio of blending oil (rice bran oil : RBD palm olein = 1 : 1, 1 : 4 mixture: w/w) and natural tocopherol, citric acid, and sodium polyphosphate on enhancement of oxidation stability of blending oil under the condition of tap water infulx(1 ml/min/200g oil) were compared by AOM test after heating these system at l80℃. In addition, the effects of tocopherol, and synergist on oxidition stability were also tested with potato chips fried with blending oil(1 : 4 mixture). The result obtained were as followes; 1. The test of RBD palm olein addition of 50% and 80% against rice bran oil on oxidation stability showed that the higher the palm olein contents in blending oil, the higher the oxidation stability. 2. The test of oxidation stability, adding l00ppm, 200ppm and 400ppm of natural tocopherol in two different types of blending oils, A(1 : 1 mixture) and B(1 : 4 mixture), disclosed that blending oil B was more positively effective, and this trend was superior at 200ppm level particularly, Furthermore, oxidation stability was enhanced remarkably upon addition of 100ppm of natural tocopherol, and 50ppm of citric acid together with 50ppm, 100ppm and 200ppm of sodium polyphosphate in general. Especially, 200ppm of sodium polyphosphate addition induced the most synergetic effect on oxidation stability showing as much as 3 times compare to control. 3. The results of oxidation stability obtained by peroxide value on potato chips fried with blending oil (1:4 mixture added tocopherol, citric acid and sodium polyphosphate and preserved at 60℃ revealed that addition of tocopherol and 50ppm of citric acid together with 200ppm of sodium polyphosphate treatment was the most synergistic coinciding with AOM test results.