scholarly journals Residual production of pineapple biomass under different levels of nitrogen and potassium in northwestern Paraná

2015 ◽  
Vol 36 (6) ◽  
pp. 3665
Author(s):  
Maria Elisa Vicentini ◽  
Paulo Henrique Caramori ◽  
Sergio Luiz Colucci de Carvalho ◽  
Luciano Grillo Gil ◽  
Wilma Aparecida Spinosa ◽  
...  

Emphasis on studies that seek sustainable energy alternatives to oil has increased over the last few years. Ethanol derived from sugarcane remains a promising technology for biofuel production. Waste from pineapple culture remains is a potential alternative raw material for biofuel production. The goal of this study was to determine the potential of residual biomass production of a pineapple crop, subjected to fertilization by different levels of nitrogen and potassium. The experiment was conducted in Northwest Paraná, in a commercial area in Santa Isabel do Ivaí-PR. The climate in this area is subtropical humid according to the Köppen classification, and has a sandy dystrophic red acrisol.The experimental design was a 4 × 4 factorial, where factor A:N doses (0; 11; 22; and 33 g per plant) and factor B:K2O doses (0; 11; 22; and 33 g per plant. The production of residual pineapple biomass responded differently to the N and K doses applied. Potassium fertilization had a positive linear correlation, up to the addition of 33 g plant-1 with a production of 5.88 Mg ha-1. A dose of 18.138 g plant-1 yielded in the maximum dry biomass production for nitrogen fertilization.

2017 ◽  
Vol 1 (2) ◽  
pp. 85
Author(s):  
Muhammad Hamzah Solim ◽  
Y. S. Wulan Manuhara

Talinum paniculatum Gaertn. is one of traditional medicinal plant in Indonesia which has benefits such as for vitality and maintain blood circulation. The aim of this research is to obtain biomass production of root and shoot of T. paniculatum Gaertn. by liquid and solid MS medium with IBA. This research conducted to provide biomass as raw material for secondary metabolites test. Stems as explant were induced with four treatments (liquid MS, solid MS, liquid MS + 2 ppm IBA and solid MS + 2 ppm IBA) with five repetitions. Observation did for 28 days. The parameters are the percentage of explants which formed the root and shoot, morphology, fresh and dry biomass. Result shows that percentage of root and shoot have 100% in liquid and solid MS + 2 ppm IBA. Fresh and dry biomass of root and shoot in solid MS + 2 ppm IBA higher than the others. This research found callus in liquid and solid MS + 2 ppm IBA. Morphology of root in liquid MS has thin and friable, but thick in solid MS. Shoot in solid and liquid MS has thin, short and sturdy.


Botany ◽  
2014 ◽  
Vol 92 (5) ◽  
pp. 370-376 ◽  
Author(s):  
Anja G. Bylin ◽  
David E. Hume ◽  
Stuart D. Card ◽  
Wade J. Mace ◽  
Catherine M. Lloyd-West ◽  
...  

In a field study during two growing seasons in northern Sweden, we assessed meadow fescue (Festuca pratensis Huds.) with and without Neotyphodium uncinatum to determine whether the endophyte affects plant performance regarding tiller and biomass production. In addition, we measured loline alkaloids produced in infected grasses. Approximately 1000 plants grew at two different levels of nitrogen fertilization: the normal amount applied in this region and one-half that amount. Increasing the amount of nitrogen increased the total number of tillers on the plants. Endophyte-infected plants produced more tillers per plant than plants without the endophyte; there was, however, no significant difference in proportion of reproductive tillers, winter survival, or total biomass production between endophyte-infected and noninfected plants. Infected plants produced loline alkaloids in different quantities without indication of being influenced by different nitrogen fertilization levels.


2020 ◽  
pp. 1549-1554
Author(s):  
Diógenes Cecchin Silveira ◽  
Juliana Medianeira Machado ◽  
Luiz Pedro Bonetti ◽  
Ivan Ricardo Carvalho ◽  
Vinícius Jardel Szareski ◽  
...  

This work aimed at evaluating the influence of nitrogen rates on the persistence of ryegrass forage production during four agricultural years. The experiment was performed in the experimental area of the University of Cruz Alta, Brazil. The experimental design was complete randomized blocks, with four agricultural years (2013, 2014, 2015 and 2016) × four harvesting times (first, second, third and fourth) × seven nitrogen doses (0, 50, 100, 150, 200, 250 and 300 kg ha-1), arranged in four replicates. The application of nitrogen on natural re-sowing ryegrass promotes the increase in dry biomass production across agricultural years. The use of nitrogen as topdressing showed little effect on the persistence of ryegrass plants in the four years of study. The efficiency of nitrogen utilization was inversely proportional to the increment of the nitrogen doses used. It is fundamental to understand the behavior of nitrogen fertilization in pastures with natural re-sowing and its effects on the persistence of the plants throughout agricultural years, as well as their participation in the sustainability of agricultural activity. Keywords: biomass production, Lolium multiflorum, urea, Brazil.


Author(s):  
María del Rosario Baray-Guerrero ◽  
Damián Aarón Porras-Flores ◽  
Hazel Eugenia Hoffmann-Esteves ◽  
Carlos Baudel Manjarrez-Dominguez

Transforming residual biomass into valuable energy compounds is important due to the problems of the energy crisis and environmental pollution, the biofuels produced are a valuable substitute for liquid or gaseous fuels for the transport sector becoming a cheap raw material, It reduces the concentrations of polluting gases, disposal problems and greenhouse effect emitted into the atmosphere. The object of study was the processing of residual biomass, to determine the optimal conditions of slow and low temperature pyrolysis to generate the highest volatile matter yield of lignocellulosic biomass; in addition to quantifying the Condensible Volatile Matter and the Non-Condensible Volatile Matter obtained from the pyrolytic reaction. According to D. Chiaramonti, et al., 2007, a higher liquid yield is obtained when the amount of volatiles is higher, the high MV content makes residual biomass a candidate with high potential for biofuel production, demonstrating that the highest yield of volatile matter during the pyrolysis the final temperature must be higher than 350 ° C, using a heating rate of 5 ° C / min, a residence time of 60 minutes and a particle size of 150 mc.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Negisa Darajeh ◽  
Azni Idris ◽  
Paul Truong ◽  
Astimar Abdul Aziz ◽  
Rosenani Abu Bakar ◽  
...  

Palm oil mill effluent (POME), a pollutant produced by the palm oil industry, was treated by the Vetiver system technology (VST). This technology was applied for the first time to treat POME in order to decrease biochemical oxygen demand (BOD) and chemical oxygen demand (COD). In this study, two different concentrations of POME (low and high) were treated with Vetiver plants for 2 weeks. The results showed that Vetiver was able to reduce the BOD up to 90% in low concentration POME and 60% in high concentration POME, while control sets (without plant) only was able to reduce 15% of BOD. The COD reduction was 94% in low concentration POME and 39% in high concentration POME, while control just shows reduction of 12%. Morphologically, maximum root and shoot lengths were 70 cm, the number of tillers and leaves was 344 and 86, and biomass production was 4.1 kg m−2. These results showed that VST was effective in reducing BOD and COD in POME. The treatment in low concentration was superior to the high concentration. Furthermore, biomass of plant can be considered as a promising raw material for biofuel production while high amount of biomass was generated in low concentration of POME.


Author(s):  
Yuriy Hayda ◽  
◽  
Khrystyna Firman ◽  

In this article analyzes the development of trends of bioenergy crops market development in Ukraine and its current state are analysed. The possibility and feasibility of synergy of mutual development of bioenergy crops market and bio-oil market in Ukraine were noted. The necessity of state support and stimulation of bioenergy crops and different types of biofuels production in Ukraine was stated. A positive trend of growth of planted areas and production of rapeseed in Ukraine was revealed. During the study period (2013-2019) the production of rapeseed was increased by 1.4 times. The greatest energy potential for the production of bioethanol is in the sugar beet subcomplex of the agricultural sector. Over the past few years, the production of sugar beet was at its highest in 2014 (15.7 million tonnes), while the following years saw a decrease in cultivated areas of sugar beet and, consequently, a drop in its gross output - to 8.3 million tonnes in 2020. Significant resource potential for the production of bioethanol also have cereal crops (wheat, rye, barley, maize), the area under which during the last ten years remains relatively stable (14.4-15.3 million ha). Among grain crops the most effective raw material for the production of bioethanol is maize. A positive tendency of biennial growth of planted area under this crop is revealed. The space differentiation of resource base of bioenergy in Ukraine is prominent. The cluster analysis revealed three groups of areas based on the similarity of the energy resources for bioenergy purposes. Two clusters including Khmelnytskyi, Ternopil, Zhytomyr and Chernihiv, Vinnytsia, Cherkasy, Sumy, Kirovograd, Poltava and Kyiv regions should be considered as the most promising areas for concentration of capacities in biofuel production. It is noted that the trajectory of development bioenergetic sector of the country is always conditioned by compromise between compliance with optimal levels of its energy and food security.


1990 ◽  
Vol 82 (6) ◽  
pp. 1120-1122 ◽  
Author(s):  
Walter A. Hill ◽  
Dodo Hortense ◽  
S. K. Hahn ◽  
K. Mulongoy ◽  
S. O. Adeyeye

2013 ◽  
Vol 42 (1) ◽  
pp. 35-39 ◽  
Author(s):  
AR Kanak ◽  
MJ Khan ◽  
MR Debi ◽  
ZH Khandakar ◽  
MK Pikar

The experiment was conducted to study the comparison on biomass production of fodder germplasm. Para (Brachiaria mutica Stapf.), German (Echinochloa crusgalli L.) and Dhal (Hymenachne pseudointerrupta C. Muell) grasses were cultivated in a completely randomized design (CRD). The whole area was divided into nine plots. The area of each unit plot was 6 m x 6 m. Number of cuttings were 16,000 /hectare where Plant to Plant distance was 16 cm and row and raw distance was 16 cm. Equal amount of organic and chemical fertilizer were applied in all cutting. The fodders were first harvested after 60 days of planting, second and third after successive 60 days of re-growth. The findings of the study showed that fresh biomass (p<0.01) and dry biomass yield (p<0.05) of three fodder germplasm differed significantly. Crude protein and organic matter yield were significant (p<0.01) only in the second cutting. German grass was showed significantly higher in CP and OM yield (p<0.01) at second cutting than other grasses. However, no significant effect on plant height was observed among three grasses. From the above findings it may be concluded that among the three fodder germplasm, German fodder showed best result in respect of biomass production. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15772 Bang. J. Anim. Sci. 2013. 42 (1): 35-39


Author(s):  
М. І. Кулик

Наведено особливості формування врожайності фітомаси світчграсу – проса лозовидного за вирощування його на деградованих ґрунтах із метою отримання сировини для виробництва біопалива. Подано фенологічні спостереження – тривалість міжфазних періодів під час веґетації культури другого року життя. Встановлено кількісні показники веґетативної частини рослин, подано їх взаємозв’язок та влив на формування врожайності культури. Визначена продуктивність фітомаси світчграсу досліджуваних сортів за різної ширина міжрядь. Peculiarities of forming switch-grass phytomass productivityduring growing on the degraded soils for obtaining raw material for biofuel production are given.Phenologicalobservations such asinterphase perioddurationduring the second year crop vegetation are made. The quantitative indexes of plantvegetative part,correlation of these indexes and influence on crop productivity are established. Switch-grass phytomass productivity of the experimentedvarietieswith different space width between rows is defined.


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