nÃo hà / O presente trabalho teve por objetivo avaliar o efeito de diferentes doses do Bokashi no crescimento das culturas de coentro, de cebolinha, em alguns atributos quÃmicos do solo e na atividade da biomassa microbiana do solo, para testar as hipÃteses de que a utilizaÃÃo do Bokashi no cultivo de cebolinha e coentro melhora o desenvolvimento das plantas em consequÃncia da melhoria do solo. A conduÃÃo do experimento foi realizada na casa de vegetaÃÃo do setor de horticultura do Departamento de Fitotecnia da Universidade Federal do CearÃ(UFC), situada no Campus do Pici, em Fortaleza, em um perÃodo de 60 dias apÃs o transplantio das mudas de cebolinha, das bandejas para os vasos plÃsticos contendo 4kg de solo e um perÃodo de 40 dias pro cultivo do coentro. O solo utilizado foi oriundo de Ãrea que predomina um Neossolo QuartzarÃnico, da comunidade do Coqueiro do Alagamar, no municÃpio de Pindoretama-CE. O delineamento experimental foi inteiramente casualizado, onde os tratamentos foram: T1- [4 kg Solo + 5g Bokashi + (20g composto orgÃnico = c.o.)]; T2- (4 kg Solo + 10g Bokashi + c.o.); T3-(4 kg Solo + 15g Bokashi + c.o.); T4- (4 kg Solo +20g Bokashi + c.o.); T5- (4 kg S + 20 g Bokashi); T6- (4 kg S + c.o.) e T7- Controle (solo natural). Foram avaliadas a altura e a massa da matÃria seca da parte aÃrea das plantas de cebolinha e do coentro e no solo, o pH, o Carbono orgÃnico total, o NitrogÃnio total e o FÃsforo disponÃvel, a colonizaÃÃo micorrÃzica arbuscular, a respiraÃÃo basal do solo, o quociente metabÃlico e o carbono da biomassa microbiana. Pelos resultados obtidos, o Bokashi, na dose de 20 g, foi o que mais favoreceu o desenvolvimento das plantas. NÃo houve influÃncia nos teores de NitrogÃnio total dos solo cultivados, mas os teores do carbono orgÃnico total e do carbono da biomassa microbiana tiveram um aumento significativo nos tratamentos T4 e T5. A quantidade de esporos de FMA nas amostras de solo analisadas foi menor nos tratamentos com Bokashi e mostrou-se estatisticamente diferente do T7 â Controle, que foi a que apresentou a maior quantidade de esporos. A colonizaÃÃo micorrÃzica arbuscular aumentou nos tratamentos T6 e T7 que nÃo usavam o Bokashi e foi menor nos tratamentos T4 e T5, que receberam a dose de 20g do Bokashi. / This study aimed to evaluate the effect of different doses of Bokashi in crop growth of coriander and chives, in some soil chemical properties and in microbial biomass activity of soil, to test the hypothesis that the use of the Bokashi in the cultivation of coriander and chives improve plant growth, increases the quality of the soil . The conduct of the experiment was accomplished in the greenhouse horticulture sector of the Department of Plant Science of the Federal University of Cearà (UFC), located in the Campus do Pici, Fortaleza, in a period of 60 days after transplanting the chives seedlings, from trays to plastic pots containing 4 kg of soil and for a period of 40 days pro cultivation of coriander. The soil used was from the area that predominates Quartzipsamments Neosol from the community of Coqueiro do Alagamar, in the municipality of Pindoretama-Ce. The experimental design was of completely randomized kind, consisting of seven treatments: T1- [4 kg Soil + 5g Bokashi + (20g organic compound = c.o)], T2-(4 kg soil+ 10g Bokashi + co) , T3-(4 kg soil+ 15g Bokashi + co), T4- (4 kg Solo +20 g Bokashi + co),-T5 (4 kg S + 20 g Bokashi), T6-(4 kg S + co) and T7 - (natural soil)Control. The characteristics evaluated were the height and dry mass of the aerial part of chives and coriander and in the soil, pH, total organic carbon, total nitrogen and available phosphorus, arbuscular mycorrhizal colonization, the soil basal respiration, metabolic quotient and microbial biomass carbon . By the results obtained the Bokashi at a dose of 20 g, was the one that most favored plant development. There was no influence on the levels of total nitrogen of the cultivated soil, but the levels of total organic carbon and microbial biomass carbon had a significant increase in T4 and T5 treatments. The number of AMF spores in the soil samples analyzed was lower in the treatments with Bokashi and was statistically different in T7 - Control, being the highest one. Mycorrhizal root colonization increased in treatments T6 and T7 which were not using the Bokashi and was lower in treatments T4 and T5, which received the dose of 20g of Bokashi.

Green infrastructure, including green roofs and urban vegetation, offers numerous benefits but also presents fire safety risks. Currently, there are no specific regulations in Sweden addressing the fire safety risks associated with green roofs.  Therefore, the aim of this study is to investigate the fire resistance of low-growing plants and their potential to mitigate these fire safety risks. A total of ten different plant types are analyzed, with four classified as fire-resistant and four as fire-prone based on their characteristics. The study also incorporates a 17-day dry period to assess the impact of moisture on the ignitability of the plants. By using a cone calorimeter, the plants' fire safety, their contribution to fires, and their ability to produce carbon monoxide are analyzed. For an overall assessment of fire safety, the Fire Growth Rate (FIGRA) and Fire performance index (FPI) are calculated for each plant.  The conclusions reveal that plants like Sempervivum species and chives exhibit superior moisture retention and fire safety characteristics, including low heat release rates, minimal smoke production, and effective heat capacity.  The disparity between FPI and FIGRA values indicates better flame-retardant abilities of the material, where Sempervivum species, chives, and Saxifraga Arendsii show the best values. These findings emphasize the significance of meticulous plant selection and maintenance to mitigate fire risks in both natural and urban environments. It’s essential to acknowledge that even fire-resistant plants necessitate regular maintenance, such as the removal of dead material and watering during extended dry periods, as fire resistance does not equate to fireproof.  Proposed future work entails a deeper exploration of the chemical properties and morphology of the plants to enhance our understanding of their fire resistance mechanisms. Additionally, compiling data on recommended plants for green roof installations from a fire safety perspective could aid in urban planning and vegetation management. / Grön infrastruktur, inklusive gröna tak och stadsväxtlighet, erbjuder många fördelar men innebär också brandsäkerhetsrisker. För närvarande finns det inga specifika regler i Sverige som behandlar brandsäkerhetsriskerna med gröna tak.  Därför är syftet med denna studie att undersöka brandmotståndet hos lågväxande växter och deras potential att minska dessa brandsäkerhetsrisker. Totalt analyseras tio olika växttyper, varav fyra klassificeras som brandbeständiga och fyra som brandbenägna baserat på deras egenskaper. Studien inkluderar även en simulering av en 17 dagar lång torrperiod för att bedöma fuktighetens påverkan på växternas antändbarhet. Genom användning av en konkalorimeter analyseras växternas brandsäkerhet, deras bidrag till bränder och deras förmåga att producera kolmonoxid. För en övergripande bedömning av brandsäkerheten beräknas brandspridningshastighet (FIGRA) och brandskyddsindex (FPI) för varje växt. Slutsatserna avslöjar att växter som Sempervivum-arter och gräslök uppvisar överlägsen förmågan att behålla fukt och brandsäkerhetsegenskaper, inklusive låga värden av värmeavgivningshastighet, minimal rökproduktion och effektiv värmekapacitet.   Skillnaderna mellan FPI- och FIGRA-värdena indikerar bättre flamskyddande förmåga hos materialet, där Sempervivum-arter, gräslök och Saxifraga Arendsii visar de bästa värdena. Dessa resultat understryker vikten av noggrann växtval och underhåll för att minska brandriskerna både i naturliga och urbana miljöer. Det är viktigt att förstå att även brandbeständiga växter kräver regelbunden skötsel, såsom borttagning av dött material och bevattning under långa torrperioder, eftersom brandbeständighet inte innebär att något är helt brandsäkert.   Föreslaget framtida arbete innefattar en djupare utforskning av växternas kemiska egenskaper och morfologi för att förbättra vår förståelse av deras brandsäkerhetsmekanismer. Dessutom kan sammanställning av data om rekommenderade växter för gröna takinstallationer utifrån ett brandsäkerhetsperspektiv underlätta för stadsplanering och vegetationshantering.