Pub Date : 2017-11-20DOI: 10.15835/BUASVMCN-FST:0014
L. Mitrea, L. Călinoiu, Gabriela Precup, M. Bindea, B. Rusu, M. Trif, B. Ștefănescu, I. Pop, D. Vodnar
During biodiesel production, massive amounts of raw glycerol are created generating an environmental issue and the same time an increase of biodiesel production cost at the same time. This raw glycerol could be converted by specific strains into value-added products, like 1,3-propanediol (1,3-PD), an important monomer used in the synthesis of biodegradable polyesters. The present work is based on recent scientific articles and experimental studies on the targeted topic, namely on the use of bacterial strains for bioconversion of biodiesel-derived glycerol into valuable products, like 1,3-PD. Concentrations, yields and productivity of 1,3-PD are presented for various bacterial strains. Important results as respects the microbial bioconversion of biodiesel-derived glycerol into 1,3-PD were registered for strains like Klebsiella pneumoniae, Citrobacter freundii, Escherichia coli and Lactobacillus diolivorans. From this study can be concluded that waste glycerol may be used as a nutrient source for microbial development and the production of 1,3-propanediol with high concentrations and yields.
{"title":"Isolated Microorganisms for Bioconversion of Biodiesel-Derived Glycerol Into 1,3-Propanediol","authors":"L. Mitrea, L. Călinoiu, Gabriela Precup, M. Bindea, B. Rusu, M. Trif, B. Ștefănescu, I. Pop, D. Vodnar","doi":"10.15835/BUASVMCN-FST:0014","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:0014","url":null,"abstract":"During biodiesel production, massive amounts of raw glycerol are created generating an environmental issue and the same time an increase of biodiesel production cost at the same time. This raw glycerol could be converted by specific strains into value-added products, like 1,3-propanediol (1,3-PD), an important monomer used in the synthesis of biodegradable polyesters. The present work is based on recent scientific articles and experimental studies on the targeted topic, namely on the use of bacterial strains for bioconversion of biodiesel-derived glycerol into valuable products, like 1,3-PD. Concentrations, yields and productivity of 1,3-PD are presented for various bacterial strains. Important results as respects the microbial bioconversion of biodiesel-derived glycerol into 1,3-PD were registered for strains like Klebsiella pneumoniae, Citrobacter freundii, Escherichia coli and Lactobacillus diolivorans. From this study can be concluded that waste glycerol may be used as a nutrient source for microbial development and the production of 1,3-propanediol with high concentrations and yields.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"29 1","pages":"43"},"PeriodicalIF":0.0,"publicationDate":"2017-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90078603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-20DOI: 10.15835/buasvmcn-agr:0007
A. Boț, I. Păcurar, L. Szajdak, S. Roșca
We conducted several bio-chemical analyses on soil samples collected from eight blueberry plantations from Northwest Region of Development, using such as Kjeldahl method for total N, Perucci, Krawczyński, Hoffman and Teicher methodology for determine soil enzyme. The bio-chemical analyses conducted provide a better qualitative characterization of soils, providing significant information regarding their fertility degree and favourability for blueberries. For instance, the higher amount of total organic carbon found in four of the eight studied plantation, can be correlated with the same higher amount of enzyme present in soil which have an influence on them, xanthine oxidase and peroxidase activity. Taking into account the requirements needed for a blueberry plantation, we demonstrate that organic soils have also had the highest amount of bio-chemical compounds, such as cambisoil, met in Galații Bistriței, where were also found the highest amounts of different forms of nitrogen (1.755 g/kg total N; 0.0189 g/kg NH4 and 0.0231g/kg NO3 in Galații Bistriței, comparing to 1.344 g/kg of total nitrogen; 0.0126 g/ kg NH4 and 0.0119 g/kg NO3 in Ulmeni), different forms of carbon and the enzymes that influence this compounds in soil, xanthine oxidase activity, peroxidase activity and nitrate reductase activity.
{"title":"The suitability and the bio-chemical characteristics of soils from the Northwest Region of Development from Romania, for blueberry crop.","authors":"A. Boț, I. Păcurar, L. Szajdak, S. Roșca","doi":"10.15835/buasvmcn-agr:0007","DOIUrl":"https://doi.org/10.15835/buasvmcn-agr:0007","url":null,"abstract":"We conducted several bio-chemical analyses on soil samples collected from eight blueberry plantations from Northwest Region of Development, using such as Kjeldahl method for total N, Perucci, Krawczyński, Hoffman and Teicher methodology for determine soil enzyme. The bio-chemical analyses conducted provide a better qualitative characterization of soils, providing significant information regarding their fertility degree and favourability for blueberries. For instance, the higher amount of total organic carbon found in four of the eight studied plantation, can be correlated with the same higher amount of enzyme present in soil which have an influence on them, xanthine oxidase and peroxidase activity. Taking into account the requirements needed for a blueberry plantation, we demonstrate that organic soils have also had the highest amount of bio-chemical compounds, such as cambisoil, met in Galații Bistriței, where were also found the highest amounts of different forms of nitrogen (1.755 g/kg total N; 0.0189 g/kg NH4 and 0.0231g/kg NO3 in Galații Bistriței, comparing to 1.344 g/kg of total nitrogen; 0.0126 g/ kg NH4 and 0.0119 g/kg NO3 in Ulmeni), different forms of carbon and the enzymes that influence this compounds in soil, xanthine oxidase activity, peroxidase activity and nitrate reductase activity.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"87 1 1","pages":"69-78"},"PeriodicalIF":0.0,"publicationDate":"2017-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87687995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-05-16DOI: 10.15835/BUASVMCN-FST:12634
M. Morar, Florinela Fetea, A. Rotar, M. Nagy, C. Semeniuc
Four essential oils isolated from dried leaves of parsley, lovage, basil and thyme were investigated by FTIR spectroscopy. The analysis of recorded spectra revealed that the main compounds of tested essential oils dominate their vibrational spectra.
{"title":"Characterization of essential oils extracted from different aromatic plants by FTIR spectroscopy.","authors":"M. Morar, Florinela Fetea, A. Rotar, M. Nagy, C. Semeniuc","doi":"10.15835/BUASVMCN-FST:12634","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:12634","url":null,"abstract":"Four essential oils isolated from dried leaves of parsley, lovage, basil and thyme were investigated by FTIR spectroscopy. The analysis of recorded spectra revealed that the main compounds of tested essential oils dominate their vibrational spectra.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"74 1","pages":"37-38"},"PeriodicalIF":0.0,"publicationDate":"2017-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87456945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-05-16DOI: 10.15835/BUASVMCN-FST:12641
C. Mureșan, A. Fǎrcaş, S. Man, Ramona Suharoschi, R. Vlaic
The present study focuses on the influence of adding mushroom flour on a certain assortment of pasta. The research comprises two major directions: the study of the raw materials used to produce pasta from a compositional point of view and the quantification of some biologically active compounds of interest; emphasizing the potential of using Boletus edulis mushroom flour in the composition of pasta. For this purpose, two types of pasta have been created, with different percentages of mushroom, 10% and 20%, but also a blank sample obtained in the same conditions, but without mushroom flour. To achieve the goal the following analyzes were conducted: proteins, total polyphenols, antioxidant activity, fat, humidity, ashes, acidity, increase in volume of the boiled pasta and customers’ preferences. By using acceptability test performed on the 9-point hedonic test has been established that the consumers preferred pasta enriched with 10% mushroom flour. The present results are therefore helping the food industry regarding product diversity, consumers being eager to consume these products which have nutritional value and functional proprieties
{"title":"Obtaining a Functional Product Through the Exploitation of Mushroom Flour in Pasta","authors":"C. Mureșan, A. Fǎrcaş, S. Man, Ramona Suharoschi, R. Vlaic","doi":"10.15835/BUASVMCN-FST:12641","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:12641","url":null,"abstract":"The present study focuses on the influence of adding mushroom flour on a certain assortment of pasta. The research comprises two major directions: the study of the raw materials used to produce pasta from a compositional point of view and the quantification of some biologically active compounds of interest; emphasizing the potential of using Boletus edulis mushroom flour in the composition of pasta. For this purpose, two types of pasta have been created, with different percentages of mushroom, 10% and 20%, but also a blank sample obtained in the same conditions, but without mushroom flour. To achieve the goal the following analyzes were conducted: proteins, total polyphenols, antioxidant activity, fat, humidity, ashes, acidity, increase in volume of the boiled pasta and customers’ preferences. By using acceptability test performed on the 9-point hedonic test has been established that the consumers preferred pasta enriched with 10% mushroom flour. The present results are therefore helping the food industry regarding product diversity, consumers being eager to consume these products which have nutritional value and functional proprieties","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"47 1","pages":"17"},"PeriodicalIF":0.0,"publicationDate":"2017-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91127525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-30DOI: 10.15835/BUASVMCN-AGR:12450
Mirela Cirebea, I. Rotar, R. Vidican, F. Păcurar, A. Malinas, O. Ranta
Floristic composition of the pastures is a mirror action and practical factors applied station and management (maintenance and how to use). The purpose of this research is to assess the state of the biodiversity and pastoral value for Agrostis capillaries L. grasslands from the mountain area. Also, there has been analyzed the floristic composition and a series of ecological indexes, respectively humidity, soil reaction, temperature, and nitrogen. We examined how estimated species diversity patterns changed with varying survey intensity from BAƒiE™oara village, Cluj County, Romania, an Agrostis capillaries L. grasslands. The experiment was performed in 2015. The vegetation observations were made on 29 plots. In this descriptive plot been identified the type of grassland Agrostis capillaries , described in boreal at altitudes between 850 and 1200, generally starting on exhibitions east until the south (90Es - 180 Es).The floristic composition of the Agrostis capillaries grasslands from the studied area is influenced by the local conditions and the intensity of the exploitation, these surfaces being under-exploited .
{"title":"Characterization Phyto-Socio-Ecological of Agrostis capillaris L. Grasslands","authors":"Mirela Cirebea, I. Rotar, R. Vidican, F. Păcurar, A. Malinas, O. Ranta","doi":"10.15835/BUASVMCN-AGR:12450","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12450","url":null,"abstract":"Floristic composition of the pastures is a mirror action and practical factors applied station and management (maintenance and how to use). The purpose of this research is to assess the state of the biodiversity and pastoral value for Agrostis capillaries L. grasslands from the mountain area. Also, there has been analyzed the floristic composition and a series of ecological indexes, respectively humidity, soil reaction, temperature, and nitrogen. We examined how estimated species diversity patterns changed with varying survey intensity from BAƒiE™oara village, Cluj County, Romania, an Agrostis capillaries L. grasslands. The experiment was performed in 2015. The vegetation observations were made on 29 plots. In this descriptive plot been identified the type of grassland Agrostis capillaries , described in boreal at altitudes between 850 and 1200, generally starting on exhibitions east until the south (90Es - 180 Es).The floristic composition of the Agrostis capillaries grasslands from the studied area is influenced by the local conditions and the intensity of the exploitation, these surfaces being under-exploited .","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"186 1","pages":"189-197"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79756483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-30DOI: 10.15835/BUASVMCN-AGR:12417
I. Vaida, I. Rotar, F. Păcurar, R. Vidican, A. Pleșa, A. Malinas, V. Stoian
According to The European Communion in Europe there are large areas of abandoned grasslands (Osterburg and colab., 2010). The abandonment of grasslands entails substantial changes to the vegetation cover. Usually, after a period of time, semi-natural grasslands start to develop forestlike features. In Romania despite the existence of a subsidiary system large areas with semi-natural grasslands are abandoned. The objective of this paper was to analyze the effect of abandonment on the structure of vegetation cover. The experiment consists in 3 experimental variants (1 mowed annually, 1 abandoned for 5 years and 1 abandoned for 15 years) and is located in the village of GheE›ari, from GA¢rda de Sus commune at an altitude of 1130 m. Vegetation was studied using the Braun-Blanquet method, modified by PAƒcurar and Rotar in 2014. The scientific results were processed with the numerical analysis application (Cluster Analyses) belonging to PC-ORD program. Results showed that the grassland abandoned for 5 years did not show any statistical difference compared to the grassland mowed annually. The grassland abandoned for 15 years showed modification in the structure of vegetation cover translated by the disappearance of numerous species.Our reccomandation is that semi-natural grasslands, which have numerous economical disadvantages because of their location, should be mowed at least every five years.
根据欧共体在欧洲有大面积的废弃草原(Osterburg和colab)。, 2010)。草原的废弃导致植被覆盖发生重大变化。通常，经过一段时间后，半自然草原开始发展出类似森林的特征。在罗马尼亚，尽管存在一个附属系统，但大面积的半天然草原被遗弃。本文的目的是分析撂荒对植被覆盖结构的影响。该试验包括3个试验变种(1个每年刈割，1个废弃5年，1个废弃15年)，试验地点位于海拔1130米的GA ø rda de Sus公社GheE ari村。植被研究采用Braun-Blanquet方法，并于2014年通过PAƒcurar和Rotar进行了改进。用PC-ORD程序中的数值分析应用程序(聚类分析)对科学结果进行处理。结果表明，撂荒5年的草地与每年刈割的草地没有统计学差异。撂荒15年的草原，由于大量物种的消失，植被覆盖结构发生了变化。我们的建议是，半天然草地应该至少每五年修剪一次，因为它们的位置有很多经济上的缺点。
{"title":"Impact on the Abandonment of Semi-Natural Grasslands from Apuseni Mountains","authors":"I. Vaida, I. Rotar, F. Păcurar, R. Vidican, A. Pleșa, A. Malinas, V. Stoian","doi":"10.15835/BUASVMCN-AGR:12417","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12417","url":null,"abstract":"According to The European Communion in Europe there are large areas of abandoned grasslands (Osterburg and colab., 2010). The abandonment of grasslands entails substantial changes to the vegetation cover. Usually, after a period of time, semi-natural grasslands start to develop forestlike features. In Romania despite the existence of a subsidiary system large areas with semi-natural grasslands are abandoned. The objective of this paper was to analyze the effect of abandonment on the structure of vegetation cover. The experiment consists in 3 experimental variants (1 mowed annually, 1 abandoned for 5 years and 1 abandoned for 15 years) and is located in the village of GheE›ari, from GA¢rda de Sus commune at an altitude of 1130 m. Vegetation was studied using the Braun-Blanquet method, modified by PAƒcurar and Rotar in 2014. The scientific results were processed with the numerical analysis application (Cluster Analyses) belonging to PC-ORD program. Results showed that the grassland abandoned for 5 years did not show any statistical difference compared to the grassland mowed annually. The grassland abandoned for 15 years showed modification in the structure of vegetation cover translated by the disappearance of numerous species.Our reccomandation is that semi-natural grasslands, which have numerous economical disadvantages because of their location, should be mowed at least every five years.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"27 1","pages":"323-331"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86460773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-30DOI: 10.15835/BUASVMCN-AGR:12445
M. Șandor, T. Brad, A. Maxim, V. Șandor, B. Onica
Soil fauna activity in agricultural soil is a key factor to maintain soil fertility and to assure soil ecosystem services. It is now accepted that agricultural practices like tillage and pesticide use can harm soil organisms including earthworms and springtails. Other practices like the use of green manure or animal manure have been considered as being beneficial to these soil invertebrates. To deepen our knowledge on the effect of fertilizers (mineral and organic) on earthworms ( Aporrectodea caliginosa and Lumbricus terrestris ) and springtails ( Folsomia candida) 56 microcosm experiments were made with two soil types and two hydric regimes. The microcosms were amended with four fertilizers: ammonium nitrate, mustard as green manure, cow manure and slurry. The results emphasize that mustard use had beneficial effect on Folsomia candida abundance and Aporrectodea caliginosa biomass, while mineral fertilizer had negative effects for all species used in the experiment.
{"title":"The effect of fertilizer regime on soil fauna.","authors":"M. Șandor, T. Brad, A. Maxim, V. Șandor, B. Onica","doi":"10.15835/BUASVMCN-AGR:12445","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12445","url":null,"abstract":"Soil fauna activity in agricultural soil is a key factor to maintain soil fertility and to assure soil ecosystem services. It is now accepted that agricultural practices like tillage and pesticide use can harm soil organisms including earthworms and springtails. Other practices like the use of green manure or animal manure have been considered as being beneficial to these soil invertebrates. To deepen our knowledge on the effect of fertilizers (mineral and organic) on earthworms ( Aporrectodea caliginosa and Lumbricus terrestris ) and springtails ( Folsomia candida) 56 microcosm experiments were made with two soil types and two hydric regimes. The microcosms were amended with four fertilizers: ammonium nitrate, mustard as green manure, cow manure and slurry. The results emphasize that mustard use had beneficial effect on Folsomia candida abundance and Aporrectodea caliginosa biomass, while mineral fertilizer had negative effects for all species used in the experiment.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"8 1","pages":"353-354"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78750383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-30DOI: 10.15835/BUASVMCN-AGR:12404
V. Bărbieru, M. Olar, O. Ranta, M. Muntean, O. Marian, L. Ognean, Georgiana Cătunescu
The present study was carried on the Research and Didactical Station Jucu located close to SomeAŸ River. The aim of the study is to determine the fuel consumption and productivity of aggregates (machineries) used in the conditions of the two levels of hay production technology. The experimental plot uses Festuca Arundinacea , while control, spontaneous vegetation ( Dactilys glomerata 70%, Alopecurus pratensis 10% Festuca sp .6%, Trifolium repens 5%, other plants 9%). Grassland soil taken in study type is molded with a high coefficient of withering (16-19%) and a small capacity water output (8%). Chemical characteristics of soil samples shows us a good content in humus and good to very good in mobile potassium, being deficient in phosphorus mobile. The differences noted between the fuel consumptions for the two parcels is due to higher vegetable production of control plot which has also a running speed of different aggregates also influencing effective productivity.
{"title":"Influence of Climate Factors and Plant Varieties on the Hay Technology (Fibrous Feed)","authors":"V. Bărbieru, M. Olar, O. Ranta, M. Muntean, O. Marian, L. Ognean, Georgiana Cătunescu","doi":"10.15835/BUASVMCN-AGR:12404","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12404","url":null,"abstract":"The present study was carried on the Research and Didactical Station Jucu located close to SomeAŸ River. The aim of the study is to determine the fuel consumption and productivity of aggregates (machineries) used in the conditions of the two levels of hay production technology. The experimental plot uses Festuca Arundinacea , while control, spontaneous vegetation ( Dactilys glomerata 70%, Alopecurus pratensis 10% Festuca sp .6%, Trifolium repens 5%, other plants 9%). Grassland soil taken in study type is molded with a high coefficient of withering (16-19%) and a small capacity water output (8%). Chemical characteristics of soil samples shows us a good content in humus and good to very good in mobile potassium, being deficient in phosphorus mobile. The differences noted between the fuel consumptions for the two parcels is due to higher vegetable production of control plot which has also a running speed of different aggregates also influencing effective productivity.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"27 1","pages":"149-152"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86435853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-30DOI: 10.15835/BUASVMCN-AGR:12395
V. Rotaru
The aim of this study was to assess the comparative efficacy of two phosphorus solubilizing rhizobacteria namely Burkholderia cepacia B36 and Enterobacter radicincitans D5/23T combined with insoluble phosphates in soybean ( Glycine max . L.). Inoculated plants were grown in sand culture under controlled greenhouse conditions. All the inoculated treatments showed better plant growth and nutrient uptake when compared to uninoculated control. The inoculation with B. cepacia performed better than with E. radicincitans . Phosphorus concentrations in shoots and roots did not change significantly at the early stage of plant growth. However, the bacterial inoculation had better stimulatory effect on phosphorus uptake by soybean fertilized with insoluble phosphates, in particular in treatment with combined application of both bacteria strains.
{"title":"The Effects of Phosphate Solubilizing Rhizobacteria on Soybean (Glycine max. L.) Plants Grown under Insoluble Phosphate Fertilization","authors":"V. Rotaru","doi":"10.15835/BUASVMCN-AGR:12395","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12395","url":null,"abstract":"The aim of this study was to assess the comparative efficacy of two phosphorus solubilizing rhizobacteria namely Burkholderia cepacia B36 and Enterobacter radicincitans D5/23T combined with insoluble phosphates in soybean ( Glycine max . L.). Inoculated plants were grown in sand culture under controlled greenhouse conditions. All the inoculated treatments showed better plant growth and nutrient uptake when compared to uninoculated control. The inoculation with B. cepacia performed better than with E. radicincitans . Phosphorus concentrations in shoots and roots did not change significantly at the early stage of plant growth. However, the bacterial inoculation had better stimulatory effect on phosphorus uptake by soybean fertilized with insoluble phosphates, in particular in treatment with combined application of both bacteria strains.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"67 1","pages":"351-352"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88233716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-30DOI: 10.15835/BUASVMCN-AGR:12449
I. Rotar, Mirela Cirebea, R. Vidican, F. Păcurar, A. Malinas, O. Ranta
An important part of efficient livestock production is ensuring the sufficient grass for hay and pasture. However, low soil nutrient levels often limit forage production. With good fertilizer management and soil fertility, the productivity of many hay and pasture fields can be greatly improved. Through good fertilizer management, the productivity of many hay and pasture fields can be significantly improved by Ross H. McKenzie (2005). The aim of this paper was the effect of fertilization with liquid fertilizer (UAN) the harvest of dry and floristic composition changing on natural grassland. The experiment whose results we present was placed in 2014 in the place in Baisoara Mountain village, Cluj County. Experience has been placed on the Festuca rubra and Agrostis capillaries - of grassland type. The natural grassland of Festuca rubra with Agrostis capillaries responded very well to mineral fertilizers with liquid fertilizer UAN. The floristic composition of natural grassland fertilized with liquid fertilizers based on nitrogen, it can be seen an increase the Gramineae families and an evidence downward trend from Fabaceae families.
高效畜牧业生产的一个重要组成部分是确保有足够的干草和牧草。然而，土壤养分水平低往往限制饲料生产。通过良好的肥料管理和土壤肥力，许多干草和牧场的生产力可以大大提高。Ross H. McKenzie(2005)指出，通过良好的肥料管理，许多干草和牧场的生产力可以显著提高。以天然草地为研究对象，研究了水肥施肥对旱地收获和植物区系组成变化的影响。我们所展示的实验结果于2014年在克鲁日县白什瓦拉山村进行。对草地类型的红羊茅和毛细Agrostis进行了研究。含毛臭茅的天然草地对矿质肥和液体肥的反应很好。施用氮肥的天然草地植物区系组成中，禾本科增加，豆科明显下降。
{"title":"Mineral Fertilization with UAN on Natural Grassland Festuca rubra L. with Agrostis capillaries L.","authors":"I. Rotar, Mirela Cirebea, R. Vidican, F. Păcurar, A. Malinas, O. Ranta","doi":"10.15835/BUASVMCN-AGR:12449","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12449","url":null,"abstract":"An important part of efficient livestock production is ensuring the sufficient grass for hay and pasture. However, low soil nutrient levels often limit forage production. With good fertilizer management and soil fertility, the productivity of many hay and pasture fields can be greatly improved. Through good fertilizer management, the productivity of many hay and pasture fields can be significantly improved by Ross H. McKenzie (2005). The aim of this paper was the effect of fertilization with liquid fertilizer (UAN) the harvest of dry and floristic composition changing on natural grassland. The experiment whose results we present was placed in 2014 in the place in Baisoara Mountain village, Cluj County. Experience has been placed on the Festuca rubra and Agrostis capillaries - of grassland type. The natural grassland of Festuca rubra with Agrostis capillaries responded very well to mineral fertilizers with liquid fertilizer UAN. The floristic composition of natural grassland fertilized with liquid fertilizers based on nitrogen, it can be seen an increase the Gramineae families and an evidence downward trend from Fabaceae families.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"23 1","pages":"300-305"},"PeriodicalIF":0.0,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80521954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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