• 한국토양비료학회지
• /
• 제48권5호
• /
• pp.372-378
• /
• 2015

Growing crops under different soil textures may affect crop growth and yield because of soil N availability, soil N leaching, and plant N uptake. The objective of this study was to evaluate effects of three different soils (sandy loam, loam, and clay loam) on cucumber (Cucumis sativus L.) yield, nitrogen (N) use efficiency (NUE), and water use efficiency (WUE) by subsurface drip fertigation in the greenhouse. Three different soil textures are sandy loam, loam, and clay loam with 3 replications. The dimension of each lysimeter was $1.0m(W){\times}1.5m(L){\times}1.0m(H)$. Cucumber was transplanted on April $8^{th}$ and Aug $16^{th}$ in 2011. The subsurface drip line and tensiometer was installed at 30 and 20 cm soil depth, respectively. An irrigation with $100mg\;NL^{-1}$ concentration was automatically applied when the tensiometer reading was 10 kPa. Volumetric soil water content for cucumber cultivation was the highest in 30 cm soil depth regardless of soil texture and was lowered when soil depth was deeper. The volumetric soil water contents at soil depths of 10, 30, 50, and 70 cm were the highest at clay loam, followed by loam, and sandy loam. The growth of cucumber at the $50^{th}$ day after transplanting was the lowest at sandy loam. Cucumber fruit yields were similar for all three soil textures. The highest amount of water use at sandy loam was observed. Nitrogen and water use efficiencies for cucumber were higher for clay loam, followed by loam and sandy loam, while the amount of N leaching was the greatest under sandy loam, followed by loam, and clay loam. Overall, growing cucumber on either loam or clay loam is better than sandy loam if subsurface drip fertigation is used in the greenhouse.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2017년도 9th Asian Crop Science Association conference
• /
• pp.367-367
• /
• 2017

Crimson clover, a legume crop, is a landscape crop and green manure crop that can be sowing in spring and autumn. Its red flower blooms in May, and serves various roles such as landscape composition, weeds suppressing, prevention of soil loss and nutrient on sloping land and supplying nitrogen and organic matter in soil. Thus, in order to utilize this crop in agriculture land, we evaluated the growth characteristics of crimson clover cultivated in four different soil textures, sand, sandy loam, loam, and clay loam. The nitrogen content of crimson clover was 15.8 g kg-1 and C/N rate was 20.3. Its growth was good in sandy loam and loam. Its plant height was 42.5 cm in sandy loam and 49.5 cm in loamy, respectively, which are approximately 20 cm longer than the sand and clay loam. The crimson clover in sandy loam and loam bloomed about seven days earlier than those in sand and clay loam. Regarding number of flower per hill and flower length, there were no difference between soil textures. Dry weight of crimson clover was 2.5 Mg ha-1, 2.3 Mg ha-1 each in sandy loam and loam. Therefore, it was approximately 0.8 ~ 1.1 Mg ha-1 higher than dry weight of sand and sandy loam. Plant height and dry weight of crimson clover was increased late harvest time. Nitrogen contribution were higher in loam and clay loam, when it was respectively 51.3 kg ha-1, 53.5 kg ha-1. Therefore, according to flowering properties and dry weight, the growth and development of crimson clover was finest in sandy loam and loam.

• 한국균학회지
• /
• 제10권3호
• /
• pp.119-124
• /
• 1982

공시(供試)한 6개지역(個地域)의 토성(土性)은 Colwood와 Capac이 양질토(良質土)이고 Gilford와 Ceresco는 사질식양토(砂質埴壤土)이며 Sission은 식양토(埴壤土)이고 Spinke는 사질토(砂質土)이었다. 토양산도(土壤酸度)는 Gilfold사질식양토(砂質埴壤土)가 6.6이고 기타는 $5.4{\sim}5.9$의 범위로 나타났으며 유기물함량(有機物含量)은 Gilford토양(土壤)이 제일 많이 함유하고 있었다. 일반세균수(一般細菌數)는 Gilford토양에서는 다른 토양(土壤)에서 보다 통제적으로 많았고 사상균수(絲狀菌數)에서도 Gilford와 Colwood토양(土壤)이 다른 토양보다 통계적으로 더 많았다. 방선균(放線菌)의 밀도(密度)를 보면 Gilford와 Ceresco의 토양(土壤)에서 많았고 혐기성(嫌氣性) 세균(細菌)의 수(數)는 Ceresco, Capac및 Colwood에서 많았으며 번대로 사질식양토(砂質埴壤土)인 Gilford에서는 적었다. $^{14}C-glucose$를 첩가한 토양(土壤)에서의 미생물(微生物)의 호흡량(呼吸量)은 Ceresco, Spinks, Colwood, Sission, Capac 및 Gilford의 순(順)으로 적었다. 공시균주(供試菌株) Helminthosporium victoriae(# 418)와 Mortierella n. sp.에 대한 자연토양(自然土壤), 살균토양(殺菌土壤)및 glucose와 peptone을 농도별(濃度別)(mg/g 토양(土壤))로 첨가한 토양(土壤)에서의 발아율(發芽率)을 보면 자연토양(自然土壤)에서는 $0{\sim}5%$이고 살균토양(殺菌土壤)에서는 $90{\sim}98%$이었다. 토양(土壤)에 첨가(添加)된 영양물(營養物)의 농도(濃度)에 따라 공시균(供試菌)의 발아(發芽)정도는 달랐다. 일반적으로 Capac과 Gilford에서는 Spinks토양(土壤) 보다 발아(發芽)에 필요한 영양물(營養物)을 더 많이 요구(要求)하였으며 특히 Mortierella는 H. victoriae보다 발아(發芽)에 있어서 더 많은 량(量)의 영양물(營養物)을 요구(要求)하였다.

• 한국토양비료학회지
• /
• 제49권6호
• /
• pp.705-711
• /
• 2016

Crimson clover, a legume crop, is a landscape crop and green manure crop that can be sowing in spring and autumn. Its red flower blooms in May, and serves various roles such as landscape composition, weeds suppressing, prevention of soil loss and nutrient on sloping land and supplying nitrogen and organic matter in soil. Thus, in order to utilize this crop in agriculture land, we evaluated the growth characteristics of crimson clover cultivated in four different soil textures; sand, sandy loam, loam, and clay loam. The nitrogen content of crimson clover was $15.8g\;kg^{-1}$ and C/N ratio was 20.3. Its plant height was 42.5 cm in sandy loam and 49.5 cm in loamy, respectively, approximately 20 cm longer than the sand and clay loam. The crimson clover in sandy loam and loam bloomed about seven days earlier than those in sand and clay loam. Regarding number of flower per hill and flower length, there were no difference among the soil textures. Dry weight of crimson clover for sandy loam and loam was $2.5Mg\;ha^{-1}$ and $2.3Mg\;ha^{-1}$, respectively, $0.8{\sim}1.1Mg\;ha^{-1}$ higher than that of sand and sandy loam. Plant height and dry weight of crimson clover increased with delaying harvest time. Nitrogen contribution in loam and clay loam was $51.3kg\;ha^{-1}$ and $53.5kg\;ha^{-1}$, respectively. Therefore, in terms of flowering properties and dry weight, the proper soil texture for the growth and development of crimson clover was sandy loam and loam.

• 유기물자원화
• /
• 제19권4호
• /
• pp.97-105
• /
• 2011

가축분뇨 발효액비화에 의한 자연순환 농업체계의 복원에 대한 연구의 일환으로 본 연구는 경기도 여주군 능서면 오계2리에 위치한 논포장에서 가축분뇨 저장액비와 SCB액비를 사양질 논토양과 식양질 논토양에 시용하였을 때 토양 중 변화를 조사하였다. 선정된 사양질 논토양과 식양질 논토양의 시험 전 화학적 특성은 사양질 논토양과 식양질 논토양 모두 우리나라 논토양의 평균함량과 비슷하였으나, 사양질 논토양의 유효인산 함량은 우리나라 논토양의 평균함량에 비해 매우 높았다. 사양질 논토양과 식양질 논토양 모두 무비구와 화학비료구에 비해 저장액비와 SCB액비 처리구에서 수서생물 개체수가 높았으며, 식양질 논토양에 비해 사양질 논토양에서 처리간 통계적인 유의차(P<0.05)가 컸다. 사양질 논토양과 식양질 논토양 모두 무비구와 화학비료구에 비해 저장액비와 SCB액비 처리구에서 중금속의 함량이 높았고, 사양질 논토양보다 식양질 논토양에서 중금속 함량이 약간 높았다. 가축분뇨 액비 시용 후 생육후기로 갈수록 초장과 건물중은 증가하는 경향이었으나, 처리간 통계적인 유의차(P<0.05)는 없었다. 또한, SCB액비 시용에 따른 쌀 수확량은 사양질 논토양에서는 대조구인 무비구에 비해 SCB액비 처리구에서 높았으며 통계적인 유의차도 매우 컸으나, 식양질 논토양에서는 화학비료 처리구에서 가장 높았으며, 통계적인 유의차가 크지 않았다. 또한, 벼의 양분 흡수량은 화학비료 처리구가 가장 높았으며 가축분뇨 액비 처리구에서는 비슷한 수준이었으나, 처리간에는 통계적인 유의차(P<0.05)가 없었다.

• 한국국제농업개발학회지
• /
• 제23권5호
• /
• pp.531-536
• /
• 2011

재배토성이 감초 생육 및 품질에 미치는 영향을 구명코자 2009년부터 2년간 시험을 수행한 결과를 요약하면 다음과 같다. 1. 재배년생별 생육중 경엽은 1년생, 포복경 2년생, 근은 2년생에서 양호한 경향을 보였으며, 토성에 따라서 경엽중은 사양토에서 무거웠고, 초장, 분지수, 경태는 사질식양토에서 우수하였다. 2. 포복경의 길이, 수, 무게 등 생육은 사질식양토 > 사양토 > 양질사토 순으로 좋았다. 3. 주근과 지근의 생육은 양질사토에서 길었으며, 주근경, 지근경은 사양토에서 굵었다. 지근수는 사질식양토에서 다소 많았다. 4. 근 수량은 주근, 지근 등에서 사양토 > 사질식양토 > 양질 사토 순으로 많으며, 1년생과 2년생 근 상품 수량은 사양토에서 양질사토 204 kg/10a 대비 57%, 2년생은 71% 각각 증수하였다. 5. 글리시리진(glycyrrhizinic acid)의 함량은 1년생은 사질식 양토에서 1.62%, 2년생은 사양토에서 1.58%로 가장 높았다.

• 아시안잔디학회지
• /
• 제5권2호
• /
• pp.87-94
• /
• 1991

This study was carried out to determine the optimal seeding rate of Korean lawngrass in three different soil textures. The results obtained are summarized as follows;1.In early development, there were not significant differences in leaf length and width except for leaf width in mean seeding rates. And there was significant difference in tillering number. Tillering number of Korean lawngrass grown in sandy clay loam soil was more abudant than that grown in sandy clay and sandy loam soils.2.The rate of ground cover of Korean lawngrass grown in sandy clay loam soil was faster than that in other soils. The ground cover rate was faster in the following order: 15, 12, 10, 7, 5, 3 kg/10a. But in sandy clay loam soil, it was showed that the plot seeded at 12kg/10a be faster than that at l5kg/10a. Plots seeded from 5 to 15kg/10a in sandy clay loam soil and 15kg/10a in sandy clay soil were showed the 100% ground cover during the period of the year seeded.3.There were not significant differences in dry weight of each part measured at 11 and l4months after seeding. But there were significant differences in dry weight of shoot and total dry weight. Total and shoot dry weight of Korean lawngrass grown in sandy clay loam soil were heavier than that in others. 4.It was revealed that the optimal seeding rate in sandy clay loam soil was 12 kg/10a. But it was suggested that the optimal seeding time and rate in each soil textures be undertaken in future.

• 한국농공학회지
• /
• 제26권2호
• /
• pp.47-58
• /
• 1984

The study results of the mosture consumption character and irrigation effect of tomato, red pepper and chinese cabbage, in case the soil moisture is kept with different moisture content by the soil properties(loam, sandy loam, sand), are summarized as follows: 1. The available rainfall under bare soil condition had an order of sand>sandy loam> loam and their average was 64.2%. 2. Total moisture consumption under bare soil condition had an order of loam>sandy loam>sand and their average was 4.2mm. 3. The amount of irrigated water to keep certain soil moisture under bare soil condition showed minimum in sand and maximum in loam. It is considered because the capillary phenomenon was more developed in loam. 4. Total moisture consumption of tomatoes under premature cultivation showed 925mm in maximum and had on order of loam>sandy loam>sand. In the aspect of re-irrigation point, it had an order of PF 1.5> PF 1.7>PF 2.1. In case the twenty years's drought frequency was taken into account, the target amount of irrigation water meeded for premature cultivation was 916mm and its average daily moisture consumption was 10.8mm. 5. Total moisture consumption of red pepper under open cultivation showed 1145mm in maximum and had an order of loam>Sandy loam>sand. In the aspect of re-irrigation frequency was taken into consideration the target amount of irrigation water was 1,174.8mm and its average daily moisture consumption was 8.0mm. 6. Total moisture consumption of autumn chinese cabbages was 349mm in maximum and had an order of loam>sandy loam>sand. In the aspect of re-irrigation point, it had an order of PF 1.5>PF 2.1>PF 2.7. In case the twenty year's drought frequency was taken into account, the target amount of irrigation water needed for chinese cabbage cultivation was 259.5mm and its average daily moisture consumption was 6.5mm. 7. It is effective to keep the soil moisture of tomato from PF 1.5 to PF 2.1 in loam and the soil moisture control was effective in sandy loam than red pepper and chinese cabbage. In sand, the production was severaly decreased and the re-irrigation point of PF 1.5 was effective.

• 한국약용작물학회지
• /
• 제8권2호
• /
• pp.89-93
• /
• 2000

절편씨마를 이용하여 마를 재배할 경우 토성에 따른 괴경의 형태적 특성과 수량성의 차이를 단마 품종 '마1호'와 장마 품종 '안동재래종'을 공시하여 검토한 결과를 요약하면 다음과 같다. 사토에서는 괴경의 길이가 짧고 분기의 발생이 많아 괴경의 모양이 좋지 않았다. 양토와 사양토에서는 사토에 비하여 분기 발생이 적어 괴경의 모양이 양호하였으며, 괴경의 생체수량은 단마가 $21{\sim}27%$, 장마가 각 6% 증수되었고 , 상마수량은 단마가 $45{\sim}55%$, 장마가 $20{\sim}22%$ 증수되었다. 식양토에서 단마는 괴경의 분지 발생이 다소 많았으며, 장마는 괴경의 굵기가 가늘고 만곡되어 모양이 좋지 않았다.

• 한국환경농학회지
• /
• 제27권3호
• /
• pp.245-252
• /
• 2008

게르마늄 토양처리시 토성이 벼의 생육 및 게르마늄 흡수에 미치는 영향을 조사한 결과 토성별 벼의 간장,수장,수수 및 천립중은 토성에 따른 유의성이 없이 비슷하였다. 벼 부위 별 건물중량은 모든 토성에서 전반적으로 잎>줄기>뿌리 순으로 높았고, 벼 낟알 부위별 생산량은 현미${\geq}$ 백미${\gg}$쌀겨 순 이었다. 벼 부위별 게르마늄 함량은 미사질양토 처리구의 게르마늄 함량이 잎, 줄기 및 뿌리에서 각각 841, 137 및 2.3 mg $kg^{-1}$로 다른 처리구에 비해 유의성이 있게 높았다. 낟알 부위별 게르마늄 함량은 현미와 백미의 경우 미사질 양토 처리구의 게르마늄 함량이 각각 14.5 및 8.3 mg $kg^{-1}$로 다른 처리구에 비해 높았다. 벼 부위별 게르마늄 흡수량은 현미의 경우 전반적으로 미사질양토>사양토>식양토>양토 순으로 미사질양토 처리구가 $140{\mu}g\;pot^{-1}$로 가장 높았다. 미사질양토 처리구에서 벼 부위별 게르마늄 흡수율은 잎이 19.7%, 줄기가 2.3%, 뿌리가 0.03%, 쌀겨가 3.1% 및 현미가 0.44%(백미 0.25%)로서 총 게르마늄의 25.8%가 흡수되고 토양내에 74.2%의 게르마늄이 잔류하였다. 토성에 따른 쌀의 품질은 토성에 따라 별 차이 없었다. 이상의 결과를 미루어 볼 때 게르마늄 함유 쌀을 효과적으로 생산을 위해서는 시험에 사용된 토성 중 미사질양토가 적합한 것으로 판단되었다.