• 한국토양비료학회지
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• 제48권5호
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• pp.404-412
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• 2015

The slurry composting and bio-filtration (SCB) liquid manure has some obvious advantages including a good source of N, P and K, local availability, effective microorganism and the ability to improve soil properties. This study was conducted to evaluate the influence on the changes of soil chemical properties and yield of red pepper by fertigation cultivation with SCB application for 2 years. Red pepper was transplanted in early May in 2013 and 2014. The treatment with three replication was composed of 4 types as control (N 1.0), SCB 0.5N, SCB 1.0N, and SCB 2.0N standards of recommended nitrogen fertilizer ($19kg\;N\;10a^{-1}$). The fertigation cultivation which was installed the surface drip irrigation system was splitted 10 times as $2.5Mg\;10a^{-1}$ nutritional solution included with chemical fertilizer and SCB every 10 days during the cultivation. The height and width of pepper plant were 7.0% and 5.8% higher in SCB 2.0N treatment than that in control. The yield of red pepper increased with the increasing of SCB application rates from SCB 0.5N to 2.0N. The yield of SCB 1.0N was much better 10% in average than that of control, and there was significant differences among all treatments. pH of control soil after final harvest decreased to 6.1, however pH of SCB treated soils increased from 6.7 to 7.1 depending on SCB application rates. The Exch.-K contents of SCB treated soils were increased 13.7 to 56.9% after final harvest compared with control by $0.51cmol_c\;kg^{-1}$. Accordingly, these results showed that SCB 1.0N application rate as a recommended nitrogen level based on soil testing can be used as an alternative nitrogen management as well as plant nutrition for red pepper cultivation.

• 생물환경조절학회지
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• 제21권3호
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• pp.186-191
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• 2012

참외에서의 관비재배기술 개발을 위하여 배양액의 공급횟수가 토양의 EC 변화, 질소와 칼슘 집적, 덩굴의 생장, 과실의 수량 및 품질에 미치는 영향을 조사하였다. 관비재배는 관행에 비하여 토양 EC가 $0.8dS{\cdot}m^{-1}$까지 증가 하였으나 관행재배는 $0.68dS{\cdot}m^{-1}$에서 $0.2dS{\cdot}m^{-1}$로 낮아졌다. 정식 후 20일 된 식물체의 덩굴길이는 큰 차이가 없었으나 건물중은 관비재배구가 증가하였는데 2회(오전 9시와 오후 6시, 900L/1,000포기, 매일)처리구가 현저히 많았다. 토양 내 질소함량에는 큰 차이가 없었으나 칼슘은 관비재배구가 현저히 높았다. 관비는 관행재배에 비하여 참외과실의 상품(商品)수량이 증가하였는데 1일 1회(오전 9시)보다 2회 관비재배구가 더욱 많았고 기형과율은 관비재배구가 감소하였다. 1개 과실의 크기와 당도에는 차이가 없었다. 저장기간 동안 과실의 중량 감소는 2회 관비재배구가 현저히 많았다.

• 한국유기농업학회지
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• 제7권2호
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• pp.115-124
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• 1999

돈분뇨 정화 처리수를 이용하여 시설재배 토양에서 고추를 관비재배시 관비량(표준시비량의 질소 50%, 75%, 및 100%) 및 관비간격(관수시마다, 1주 간격 및 2주 간격 관비)이 작물의 생육, 수량 및 토양의 화학성에 미치는 영향을 구명하고자 수행되었다. 돈분뇨 정화 처리수 관비구의 고추 초기생육은 표준시비구와 대등하나 돈뇨 관비량이 증가할수록 양호하였고, 후기생육 및 총수량은 75% N 관비구에서 가장 좋았다. 고추잎의 질소, 인산, 가리 등 무기성분함량과 엽록소함량은 돈뇨관비량이 증가할수록 높아지는 경향이었다. 한편 생육초기의 착과율은 각분지 공히 돈뇨량이 증가할수록 높았고, 50% N 관비구에서 가장 낮았다. 시험후 토양의 무기성분 함량은 돈뇨관비량이 많을수록 pH는 다소 낮아지는 반면, EC, 인산, 치환성 가리 등은 증가하는 경향이었으나 표준 시비구보다는 낮은 수준이었다. 관비간경에 따른 고추생육과 수량의 차이가 없었고, 토양의 화학성도 큰 변화를 보이지 않아 돈분뇨 정화처리수의 인위적 보충이 필요없는 간이자동관수장치에 의해 관수시마다 관비하는 것이 좋을 것으로 판단되었다.

• 한국토양비료학회지
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• 제47권1호
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• pp.23-27
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• 2014

Nutrient accumulation in surface soil has become a serious problem for cucumber production in greenhouse. However, still in many cases, soil management practices are only focused on maintaining crop yield, regardless of sustainability related with soil chemical properties. This study was conducted to propose a sustainable soil management practice by investigating the impact of cover crop species and nitrogen rate of fertigated solution on cucumber yield and soil chemical properties in greenhouse condition. Rye and hairy vetch were tested as a fallow cover crop, and each amount of urea (1/2, 3/4, 1 times of N fertilizer recommendations), determined by soil testing result, was supplied in fertigation plots as an additional nitrogen source. The result showed that the yield of cucumber was higher in rye treatment than control and hairy vetch treatment. In addition, rye effectively reduced EC and accumulated nutrients from the soil. Meanwhile, N concentration of fertigated solution showed no significant effect on the growth and yield of cucumber. Consequently, these results suggest that it is desirable to choose rye as a fallow catch crop for sustainable cucumber production in greenhouse.

• 한국생물환경조절학회:학술대회논문집
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• 한국생물환경조절학회 2007년도 춘계 학술대회 및 정기총회
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• pp.322-327
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• 2007

• 농업과학연구
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• 제42권4호
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• pp.423-429
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• 2015

This study was conducted to evaluate the effects of reduced nitrogen (N) and potassium (K) fertigation as additional fertilizer on tomato yield and nutrient contents in excessively nutrients-accumulated soil. Shoot and root dry weights (DW), dry matter rate for shoot, root and fruit and number of fruit in both AF50 and AF100 (50 and 100% levels of additional fertilizer) treatments were increased in comparison with those in AF0 (0% level of additional fertilizer) treatment. In case of nutrient uptake by tomato, nitrogen, phosphorous (P) and potassium contents in all tomato parts (leaf, stem, root and fruit) in AF50 and AF100 treatment were lower than those in AF0 treatment. On the contrary, soluble sugar and starch contents in all tomato parts in AF50 and AF100 were higher than those in AF0 treatment. There were differences between AF0 and AF50 or AF100 in tomato growth, yield, nutrient level and contents of soluble sugar and starch. In contrast, the level and initiation point of fertigation did not significantly affect the parameters. Based on our results, the application of properly reduced level of additional fertilizer is possible to maintain the productivity of tomato and alleviate the nutrient accumulation in plastic film house soils.

• 한국토양비료학회지
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• 제45권4호
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• pp.492-496
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• 2012

시설재배 참외재배시 적정 관비액 농도조성 결정을 위하여 질소, 인산, 칼리 3요인에 대한 참외 수량반응에 대하여 반응표면분석을 실시한 결과 최대 수량을 나타내는 관비액 농도는 질소 $108.3mg\;L^{-1}$, 인산 $54.8mg\;L^{-1}$, 칼리 $158.3mg\;L^{-1}$으로 조사되었고 참외의 최대수량은 $2,966.8kg\;10a^{-1}$으로 분석되었다. 관행재배에 비하여 관비재배시 인산흡수량 증가는 없었으나, 질소 관비처리시 관비재배 처리구에 비해 약 33.3%의 질소흡수량 증가가 있었으며 (p < 0.001), 칼리의 경우 관비 처리구는 약 15.7%의 칼리흡수량 증가가 있었다 (p < 0.01). 참외의 수량도 관비재배 처리구에서 $2,678{\pm}75.50kg\;10a^{-1}$으로 관행처리구 $2,177{\pm}63.01kg\;10a^{-1}$보다 23% 정도 증수되었으며 (p<0.001), 관비처리와 관행처리간 토양화학성 차이는 없었다.

• 한국작물학회지
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• 제68권3호
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• pp.197-206
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• 2023

본 연구는 지중점적시설을 이용한 옥수수 관수·관비재배시 옥수수의 생육 및 수량 반응을 조사하여 적합한 관수 및 관비기준을 마련하고자 수행되었다. 1) 사양토 조건에서 지중점적시설을 이용한 관비 재배시 옥수수 근권부까지 필요한 수분은 24.3 ton 10a^-1의 물이 소모되었다. 2) 사양토(점토함량 10.2%) 조건에서 한번 관수·관비로 토양수분함량이 25%정도 유지될 수 있는 기간은 25일, 20% 정도까지는 30일간 지속되었다. 3) 지중점적 관수·관비처리에 따른 옥수수 지상부 생육은 N 8 처리구에서 가장 우수하였으며 N 10 처리구에서는 감소하는 경향이 나타났다. 4) 지중점적 관수·관비처리에 따른 옥수수 수량구성요소는 N 8 처리구가 가장 우수하였으며 관수구 대비 약 14%, 무처리 대비 약 30%의 증수 효과를 나타내었다.

• 한국생물환경조절학회:학술대회논문집
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• 한국생물환경조절학회 2005년도 세계의 친환경 시설원에 기술동향 및 춘계 국제학술대회 발표논문집
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• pp.153-159
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• 2005

• 한국토양비료학회지
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• 제49권6호
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• pp.699-704
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• 2016

An estimation of optimal requirement of additional N by cropping pattern and growth stage is very important for greenhouse watermelon. The objectives of this study were to estimate an amount of optimal additional N based on growth, N uptake and yield of watermelon. In order to achieve these goals, we performed the study at farmer's greenhouse with a fertigation system and watermelon was cultivated three times (spring, summer and autumn) in 2015. The levels of additional N were set up with x0.5, x0.75, x1.0 and x1.5 of the $NO_3$-N-based soil-testing N supply for watermelon cultivation. The trends of growth and N uptake of watermelon markedly differed from cropping pattern; spring (sigmoid), summer and autumn (linear). The yield of watermelon was the highest at summer season and followed by autumn and spring. Also, the x1.5N showed a significantly higher yield compared to other N treatments. On the basis of growth, N uptake and yield of watermelon, we estimated an optimal level of additional N by cropping pattern and growth stage as follows; 1) spring (transplanting ~ 6 WAT : 6 ~ 14 WAT : 14 ~ harvest = 5 : 90 : 5%), summer (transplanting ~ 4 WAT : 4 ~ 8 WAT : 8 ~ harvest = 25 : 50 : 25%) and autumn (transplanting ~ 4 WAT : 4 ~ harvesting : 50 : 50%). In conclusion, nutrient management, especially N, based on cropping pattern and growth stage was effective for favorable growth and yield of watermelon.