Nitrogen Mineralization in Soil Amended with Oil-Cake and Amino Acid Fertilizer under a Upland Condition

Im, Jong-Uk; Kim, Song-Yeob; Yoon, Young-Eun; Kim, Jang-Hwan; Lee, Sang-Beom; Lee, Yong-Bok

doi:10.11625/kjoa.2015.23.4.867

Cited by 6 publications

(4 citation statements)

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“…The oil cake used in the study contained a combination of rapeseed cake, castor oil cake, and rice bran cake which will become the source of nutrient input into the soils of jujube orchards. Oil cakes were observed to have higher nitrogen content compared to livestock compost [15] and to undergo rapid mineralization of organic nitrogen [12,15] potentially contributing to the nitrogen contents of the soil. The OM content showed no significant difference between organic and NPK fertilized soils.…”

Section: Impact Of Oil Cake Amendment and Chemical Fertilization On J...mentioning

confidence: 99%

“…In Korea, organic fertilizer-based research is promoted for eco-friendly agriculture and oil cake is an unconventional organic fertilizer that is used across Korean agricultural fields including its input in jujube orchards [12]. Oil cake can be easily mineralized by soil microbes and the nutrients can be utilized by the crops improving nutrient, crop growth and productivity [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Changes in Soil Chemical Properties and Bacterial Community Composition of Jujube Orchard Due to Oil Cake Fertilization

Park,

Kim,

Walitang

et al. 2024

Preprint

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Organic fertilizer application in agricultural land is known to improve soil microbial processes, fertility, and yield. In particular, stable changes in soil chemical composition through multi-year fertilization of organic fertilizers are thought to cause changes in the microbial community. Here, the effects of oil cake amendments (OC) on soil bacterial diversity, community profile and enzyme activity were evaluated and compared to those amended with chemical fertilizer (NPK). The comparison of diversity indices between OC and NPK amended soils shows that application of oil cake has increased microbial diversity potentially with an increase in the number of different microbial groups. The ordination plot distinguished and clustered both treatments showing differential effects of soils chemical factors on the microbial communities of each treatment. Proteobacteria, Verrucomicrobia and Bacteriodetes were significantly abundant in OC amended soil than in the NPK received soil, indicating alterations in community structure, composition, and diversity con-current to the changes in pH, Ca and Mg contents of the soil. These shifts in bacterial community structure and composition could also be observed from the phylum to the genus level in both NPK and OC amended soils partially explained by differences in soil chemical factors. The OC soil compared to the NPK amended soil also contain significantly higher abundance of predicted genes corresponding to enzymes related to biogeochemical cycling, decomposition and plant growth promotion. Collectively, these results support the use of an unconventional organic fertilizer positively altering bacterial populations in jujube orchards. The application of oil cake-based organic fertilizer improved microbial diversity and enhanced potential ecosystem functions related to bio-geochemical cycles, mineralization and plant growth promotion.

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Section: Impact Of Oil Cake Amendment and Chemical Fertilization On J...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Changes in Soil Chemical Properties and Bacterial Community Composition of Jujube Orchard Due to Oil Cake Fertilization

Park,

Kim,

Walitang

et al. 2024

Preprint

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“…Such fertilizers are also beneficial to crop growth particularly in promoting root protection and production (Kai et al, 1990;Elad and Shtienberg, 1994). Soybean meal oil cakes, in particular, are fast-acting fertilizers often used as crop supplements in organic agriculture (Im et al, 2015). When the aforementioned organic fertilizers are used, yields of rice, red pepper, and red mustard are comparable to or higher than yields of crops fertilized with conventional materials (Kim et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Growth Promotion Effects of Plant Extracts on Various Leafy Vegetable Crops

Jang¹,

Kuk²

2019

HST

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Though the mechanisms are not yet fully understood, the macro-and micro-nutrients, amino acids, and hormone-like growth substances present in plants (whole plants and their extracts) may lead to biostimulatory activities when applied to crops. This study was conducted to determine the growth promotion effects on lettuce (Lactuca sativa L.) of plant extracts obtained by different extraction methods (water, boiling water, fermentation, and ethanol) from 31 agricultural materials. We also determined the growth promotion effects of three other leguminous crop extracts on lettuce. In total, these 31 different agricultural materials produced 82 different extracts. The most effective extracts were water and boiled water extracts of Chinese chive (Allium tuberosum), water extracts of soybean leaves (cvs. Daewon and Haepum), and water, fermentation, and ethanol extracts of soybean stems (cv. Daewon). These induced a 31 -45% increase in shoot fresh weight of lettuce compared with control plants. Chinese chive, soybean leaf, and soybean stem extracts had a greater impact on shoot fresh weight of lettuce when applied at 20 days after seeding (DAS) than when applied at 30 and 40 DAS. In addition, when extracts from Chinese chive and soybean leaf and stem were used, the shoot fresh weight of lettuce was higher at 7 days after treatment (DAT) than at 14 and 21 DAT. The shoot fresh weight of lettuce was 13 -15% higher when the selected extracts were applied twice instead of once. Moreover, the growth promotion effects of the selected plant extracts were also observed in endive and broccoli, but not in pak choi and kale. Additionally, the growth promotion of lettuce was higher in response to soybean leaf and stem extracts than extracts of other leguminous crops (cowpea, mung bean, and red bean). The selected extracts showed higher growth promotion effects on lettuce than those of urea and a commercial extract. Overall, the results indicate that the selected plant extracts can be used for growth promotion in organic cultivation of various crops.

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“…특히 탄질율이 높을수록 높은데 이는 서서히 분해되어 화학 비료 대비 유실이 적기 때문이다. 또한 유기자원의 질소 무기 화율은 토양 깊이 및 시비시기 (Im et al, 2015;Moon et al, 2017)에 따라 달라진다. 이처럼 유기자원 사용시 고려해야 할 요소는 탄소, 질소 및 탄질비 등이 있으나 특히 중요한 것은 유기자원의 질소성분이며 (Ryoo, 2012;Ryoo and Choi, 2012;Lee et al, 2015), 토양 유기물에 함유되 어 있는 양분 중에서 가장 중요한 것은 질소이다 (Chang and Sohn, 2000).…”

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Estimation of Nitrogen Mineralization of Organic Amendments Affected by Nitrogen Content in Upland Soil Conditions

Lim¹,

Lee²,

Kang³

2019

Korean Journal of Environmental Agriculture

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BACKGROUND:To investigate mineralization characteristics of organic resources in the soil, five materials (rice straw, cow manure sawdust compost, microorganism compost, mixed oil-cake, and amino acid fertilizer) were treated according to the nitrogen content, and an indoor incubation experiment was conducted for 128 days. The results of this analysis were applied to determine the nitrogen mineralization pattern of these organic resources. METHODS AND RESULTS: During the constant temperature incubation period, the nitrogen net mineralization rate of the organic resources was the highest in the amino acid fertilizer with the highest nitrogen content, and the lowest in the rice straw with the lowest nitrogen content. A positive correlation (0.96) was observed between the potential nitrogen mineralization rate and total nitrogen content. The mineralization rate constant, k, was negatively correlated with the organic matter (-0.96) and carbon content (-0.97). The nitrogen mineralization rate during the first cropping season, as estimated by the model, was 6.6%, 11.6%, 30.9%, 70.7%, and 81.0% for the rice straw, the cow manure sawdust compost, the microorganism compost, the mixed oil-cake, and the amino acid fertilizer, respectively. CONCLUSION: The nitrogen mineralization rate varies depending on the type of organic resources or the nitrogen content; thus, it can be used as an index for determining the nitrogen supply characteristics of the organic resource. Organic resources such as compost with low nitrogen content or those undergoing fermentation contain organic nitrogen. Organic nitrogen is stabilized during the composting process. Therefore, as the nitrogen mineralization rate of these resources is lower than that of non-fermented organic resources, it is desirable to use the fermented organic materials only to improve soil physical properties rather than to supply nutrients for the required amount of fertilizer.

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Nitrogen Mineralization in Soil Amended with Oil-Cake and Amino Acid Fertilizer under a Upland Condition

Cited by 6 publications

References 0 publications

Changes in Soil Chemical Properties and Bacterial Community Composition of Jujube Orchard Due to Oil Cake Fertilization

Changes in Soil Chemical Properties and Bacterial Community Composition of Jujube Orchard Due to Oil Cake Fertilization

Growth Promotion Effects of Plant Extracts on Various Leafy Vegetable Crops

Estimation of Nitrogen Mineralization of Organic Amendments Affected by Nitrogen Content in Upland Soil Conditions

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