에너지 절감형 시설 풋고추 전용 품종 개발을 위한 예비실험으로서, 저온 신장성이 좋고 수량 및 품질이 우수한 풋고추 품종을 선발하기 위하여 야간 온도 조절을 통한 품종별 특성의 차이를 조사하였다. 시험은 경남농업기술원 3연동 비닐하우스에서 지난 2년간 수행되었으며, 현재 시판되고 있거나 최근 고추와 육종에서 개발한 품종들을 대상으로 열풍기 야간온도를 13도와 17도로 처리하였고 시험구 배치는 처리별로 난괴법 3반복으로 하였으며 시기별 생육 및 수량을 비교 분석 하였다. 1년차 시험(2011~2012) 결과, 초장은 일반적인 ‘녹광’ 품종의 농가 야간 최저 온도인 17도 처리에서 일반적으로 컸으며, 정경은 반대로 13도 처리에서 전체적으로 굵었다. 수량에 있어서는 일반 품종인 ‘녹광’의 경우 13도와 17도 처리에서 각각 상품과가 1,500(kg/10a)과 1,900이었고 대과종 풋고추인 ‘순한길상’은 각각 2,400과 2,600이었고 ‘롱그린 맛고추’는 각각 3,000과 2,300으로 오히려 저온인 13도 처리구에서 수량이 증가되었다. 고추와 육종의 ‘PNBG6’ 품종도 저온 처리구에서 오히려 수량이 증가하는 결과를 얻었으며 저온처리에 따른 난방비 절감효과는 LNG 사용시 10a당 약 560만원에 달했다. 2년차 시험(2012~2013)에서는 1년차와 동일한 조건에서 저온처리에 대한 수량증대 효과는 없었으나 난방비 절감효과는 10a당 약 890만원으로 저온에서의 수량 손실분을 제하더라도 추가적인 이익을 얻을 수 있었다. 본 연구를 기초로 선발된 품종들과 저온신장성이 좋은 유전자원 유래의 분리집단을 사용한다면 저온신장성에 대한 유전 연구는 물론 에너지 절감형 풋고추 전용 품종개발이 가능할 것으로 판단되며 이는 종자 산업에서의 저탄소 녹색기술의 표본이 될 것이다.

Waste dusts generated from various metallurgical processes were investigated for effective management of the designated waste in South Korea. Source of the study were selected based on the industries registered on the Allbarosystem. Raw material, products and manufacturing process were investigated on-site and leaching behavior of six heavy metals (Cr6+, Cd, Cu, Pb, Hg, As) along with CN was studied in 41 waste dust samples. We identified 14 samples exceeded the Korean regulation standard out of which 5 samples were designated waste. We suggest that regular monitoring is essential for the proper management.

As the industrial and urban development has been accelerated, the issues on Hazardous wastes (HWs) management have become important. HWs that are not included in the code lists are also managed by hazardous characteristics and determination methods in Korea. This study has been performed to investigate corrosive characteristics of hazardous wastes (HWs) depending on pH variations. We considered the type, discharge process and pH of the 14,000 corrosive waste dischargers, of which we visited 60 sites and collected 68 waste acid and alkali samples. Based on results using corrosive testing methods of the USA (EPA Method 1110A) and the Japanese environmental agency (Appendix 8 of the Japan Standard Methods on Specific HWs), it was found that, of total 54 waste acids with pH 2 or below, 47 samples by the USA EPA Methods, and 37 samples by the Japanese testing method exceeded the limit value of the corrosive rate, while 5 waste alkalic samples with pH 12.5 or above did not exceed the limit value of the corrosion rate. Besides, 9 samples with a pH higher than 2 and less than 12.5 failed to meet the corrosive rate limit. It was determined that 17 samples with a pH less than 2, which did not satisfy the standard corrosion rate, gained more weight, due to the acid deposition from acid gas on their exposed surface. Thus, it is assumed that the USA EPA Method is more strictly applicable than the Japanese Method.

양파 간이저장시 노지야적에 의해 발생하는 부패를 감소시켜 망과의 안전저장을 위하여 조립식 간이하우스를 이용하여 통풍조건 및 통풍구 재료의 크기에 따른 저장성을 조사한 결과는 다음과 같다. 평균온도는 노지야적에 비해 강제통풍에서 0.3~3.6높았고, 무통풍에 비해서는 1.4~8.2가 낮았다. 그러나 처리간 유의차는 없었다. 상대습도는 통풍처리구에서 무통풍 및 노지야적에 비해 약간 높았다. 구중감소율은 노지야적에서는 2.5%, 무통풍에서는 2.9%,

In order to find out the storage quality as influenced by the amount of kalium fertilizer in the Onion (Allium Cepa L.) cultivation , 4 different levels of kalium fertilizer amount, 0, 11, 154 and 462 kg/ha, were applied to cv. "Changnyungdaego" with the following results. As the amount of kalium fertilizer was increased, the content of kalium was increased in the soil and plant, the progress of falldown was somewhat delayed at the level of 462kg/ha kalium fertilizer , but the plant growth and yield were not different , respectively. The rotting ratio was decreased 7.5% by October at the 462kg/ha kalium than the 0 kg/ha treatment . The sprouting and total weight loss ratio were decreased at the levels of 154kg/ha kalium fertilizer.

This study was carried out investigate the storability of onions on calcium spraying, after cutting foliage, 6 different treatemnt , the dilution spraying of calcium nitrate 9 3%, 6%) , calcium carbonate(3%, 6%), dust scattering and the controls were evaluated for rotting, sprouting, healthy bulb and total weight loss ratio during storage. Rotting ratio on the dilution spraying of 6% calcium carbonate was lower than that of the control after 4 months storage by 16.7%. Sprouting and total weight loss were decreased in the dilution spraying of 6% calcium carbonate.

In order to fad out an efficient way of topdressing nitrogen fertilizer in mulch-cropping system of onion(Allium cepa L.), solid, slow-release, and liquid forms of nitrogen fertilizers were allied to cv. 'Changnyungdaego' various number of times at different time, with 5 topdress applications of solid fertilizer serving as a control. Whole basal application of conventional solid fertilizer and 2 slow-release fertilizers were labor-saving and showed improved storage quality of bulbs, but resulted in poor plant growth and considerably low yield due to fertilizer shortage from early April. This suggests that topdress application is necessary. Liquid form of nitrogen fertilizer was more effective for plant growth and yield and saving labor than the solid form. Early applications was effective for increasing yield and storage quality of onion bulbs harvested. Thus two applications of liquid form of nitrogen fertilizer in February and March at rome month interval are recommended in mulch crowing system of onion.