scholarly journals Ambientes de luz e substratos orgânicos no crescimento e qualidade de mudas de noni / Light environments and organic substrates in the growth and quality of noni seedlings

2021 ◽  
Vol 7 (12) ◽  
pp. 120706-120719
Author(s):  
Luís Cláudio Vieira Silva ◽  
Girlene Santos De Sousa ◽  
Anacleto Ranulfo Dos Santos ◽  
Caliane da Silva Braulio ◽  
Lucas Mota Amorim ◽  
...  
Keyword(s):  
2019 ◽  
pp. 16-27 ◽  
Author(s):  
I. V. Kuznetsova

Menstrual rhythm disorders and symptoms associated with the menstrual cycle are one of the main reasons for women to make an appointment with a gynecologist. After the endocrinopathies and organic substrates of menstrual irregularities are excluded, the doctor is faced with the difficult task to treat conditions that reflect the functional dysfunction of the body and its adaptation to high stress load. It is beyond argument that hormone therapy is the main resource of a gynecologist, but it is not always acceptable and does not solve all the problems of normalizing psychoneuroendocrine status. The dependence of functional disorders on environmental stress factors allows a doctor to use lifestyle correction, including rational nutrition and adding various micronutrients, in a program to improve the quality of life, eliminate psychoemotional symptoms and symptoms of autonomic dysfunction. In turn, the restoration of the adaptive reserve of the body becomes key to the recovery of menstrual function.


2015 ◽  
Vol 95 (3) ◽  
pp. 219-230 ◽  
Author(s):  
Kristine M. Haynes ◽  
Michael D. Preston ◽  
James W. McLaughlin ◽  
Kara Webster ◽  
Nathan Basiliko

Haynes, K. M., Preston, M. D., McLaughlin, J. W., Webster, K. and Basiliko, N. 2015. Dissimilar bacterial and fungal decomposer communities across rich to poor fen peatlands exhibit functional redundancy. Can. J. Soil Sci. 95: 219–230. Climatic and environmental changes can lead to shifts in the dominant vegetation communities present in northern peatland ecosystems, including from Sphagnum- to vascular-dominated systems. Such shifts in vegetation result in changes to the chemical quality of carbon substrates for soil microbial decomposers, with leaves and roots deposited in the peat surface and subsurface that potentially decompose faster. This study characterized the bacterial and fungal communities present along a nutrient gradient ranging from rich to poor fen peatlands and assessed the metabolic potential of these communities to mineralize a variety of organic matter substrates of varying chemical complexity using substrate-induced respiration (SIR) assays. Distinct microbial communities existed between rich, intermediate and poor fens, but SIR in each of the three sites exhibited the same pattern of carbon mineralization, providing support for the concept of functional redundancy, at least under standardized in vitro conditions. Preferential mineralization of simple organic substrates in the rich fen and complex compounds in the poor fen was not observed. Similarly, no preference was given to “native” organic matter extracts derived from each fen, with microbial communities opting for the most bioavailable substrate. This study suggests that soil bacteria and fungi might be able to respond relatively rapidly to shifts in vegetation communities and subsequent changes in the quality of carbon substrate additions to peatlands associated with environmental and climatic change.


2020 ◽  
Vol 14 (5) ◽  
pp. 1689-1697
Author(s):  
Kalifa Coulibaly ◽  
Fernand Sankara ◽  
Salimata Pousga ◽  
Philippe J. Nacoulma ◽  
Marc B. Somé ◽  
...  

The maximization of organic substrates production for land sustainable management is a major challenge for agricultural production in countries like Burkina Faso. The objective of this study was to assess the quantity and the quality of organic substrates produced by poultry activity on station. Therefore, 54 local chickens at eighteen months old were allocated to 3 batches (boxes), with 18 chickens per batch. Rice husk was spread on the floor of the 3 boxes as litter for the chickens. The chickens were reared on the litter for 6 months in semi-confinement. Then, the poultry litter (PL) was used as substrate for maggots’ production. The quantities and the chemical characteristics of the raw PL as well as the residues of the litter after maggots’ production (RMP) were determined, and, simulations were done to estimate the quantities of organic substrates and the chemical nutrients that poultry farms can produce. The results show a production of 226.06 kg DM of PL after 6 months of semi- confinement, with a decrease of 30.33% when the PL was used to produce maggots. Carbon and nitrogen contents also registered a decreased of 8.83 and 8.39% respectively when PL was used to produce maggots. However, with phosphorus and potassium contents, an increase of 49.12 and 34.21% were noted, respectively. It was concluded that small poultry farmers with 30 to 100 adult chickens, could produce the equivalence of 100 to 300 kg of fertilizer (NPK (15-15-15)) in semi-confinement condition.Keywords: local poultry, litter, organics substrates, maggot production, fertilizer, small farm.


Phyton ◽  
2016 ◽  
Vol 85 (1) ◽  
pp. 71-78
Author(s):  
Gonz醠ez B ML ◽  
M Fortis H ◽  
P Preciado R ◽  
MA Segura C ◽  
E Salazar Sosa ◽  
...  
Keyword(s):  

2019 ◽  
Vol 2 (1) ◽  
pp. 20-26
Author(s):  
Francisco Tomaz de Oliveira ◽  
Vander Mendonça ◽  
Oscar Mariano Hafle ◽  
Joserlan Nonato Moreira ◽  
Ednaldo Barbosa Pereira Júnior ◽  
...  

The volume of containers and the organic substrates are factors directly linked to the quality of seedlings. At this work, we conducted an experiment aiming to evaluate the effect of different organic sources and volumes of containers on the production of guava rootstocks. The experiment was realized from June to November 2011, at the Experimental Farm of the Federal Institute of Education, Science and Technology of Paraíba (IFPB), Sousa-PB, Brazil. We used a randomized block in a 3x4 factorial design. The first factor was the organic substrate, with three treatments (cattle manure, sheep manure and earthworm castings), and the second factor consisted of four container volumes (635 mL, 1285 mL, 1800 mL and 3300 mL). Each treatment was replicated four times. The evaluated characteristics were: shoot length, shoot diameter, dry shoot matter and macronutrient contents (N, P, K, Ca, Mg and S) in the aerial dry shoot mass. Based on the results, we recommend a volume of containers of 1285 mL for guava rootstocks, regardless of the organic substrate. The variation in the volume of the containers provided differences in the growth of the rootstocks and the accumulation of N, P, Ca and Mg in the dry mass of the aerial part.


Author(s):  
G. Yu. Rabinovich ◽  
Е. А. Podolyan ◽  
T. S. Zinkovskaya

The expediency of introducing wastewater sediment (WWS) in fresh form together with additional fillers (peat, sawdust, straw) is justified. Field experience was conducted in 2015-2017. using WWS station of treatment facilities in Tver on sod-podzolic sandy loam soil. WWS was applied once during the laying of the experiment together with organic substrates in different proportions with a general application rate of 60 t/ha. For comparative characteristics, the experiment included a variant with compost harvested at the treatment plant, based on WWS and sawdust. The influence of non-traditional types of organic fertilizers on the yield of field crops (vetch-oat mix, winter rye, spring barley), the quality of the resulting product, including the accumulation of heavy metals in it, was revealed. The greatest effect was observed when applying WWS with peat and WWS with sawdust. The study of the ratio of the components of mixtures with WWS showed that the highest productivity and yield increase was ensured by the use of WWS: substrates = 1: 1. A further increase in the participation of sawdust, peat and straw led to a decrease in productivity and quality indicators. WWS, introduced in different ratios together with organic substrates, did not cause excessive accumulation of heavy metals in crop production. The sequence of heavy metals was established: Zn> Cu> Co> Pb> As> Cd, which reflects the degree of their accumulation in the green mass of the vetch-oat mix, winter rye and barley grain. The influence of the studied norms for introducing WWS on the yield and quality of crops is maintained during all three years of the crop rotation link.


2018 ◽  
Vol 36 (2) ◽  
pp. 189-194
Author(s):  
Manuel Fortis-Hernández ◽  
Pablo Preciado-Rangel ◽  
Miguel A Segura-Castruita ◽  
Leonel Mendoza-Tacuba ◽  
Miguel A Gallegos-Robles ◽  
...  

ABSTRACT Yield and nutraceutical quality of Sahel tomato cultivar under shade net was evaluated using different mixtures of organic substrates in Coahuila, northern Mexico. The treatments consisted of mixtures using sand (S), vermicompost (VC), solarized bovine manure (SB), agricultural soil (AS) and mineralized compost (MC). The treatments were: T1 (S:VC, 80:20), T2 (S:SB, 80:20), T3 (S:SB:AS, 80:15:05), T4 (S:VC:AS, 80:15:05), T5 (S:MC, 80:20), and a control treatment T6 (S, 100%) with Steiner solution. Yield results showed that the best organic treatments were T5 and T4 with 3.48 and 3.33 kg plant-1, respectively; while the highest yield was in control (T6) with 3.71 kg plant-1. The highest phenolic content in the organic treatment of fruits was 56.94 mg equivalent of gallic acid per 100 g in fresh weight for T5, while the treatment with chemical fertilization obtained 49.82. The greatest antioxidant capacity was obtained in T4, with 478.34 μM equivalent of Trolox/100 g fresh weight. Two colors were evaluated (yellow and red) corresponding to two ripeness phases. Lycopene content in tomatoes was in average 32% higher in the red colored fruits than in the yellow ones, with 3.12 and 2.24 mg lycopene 100 g pulp-1 values, respectively. For the red ones, treatment T5 showed the highest value (3.52) and in yellow ones T1 reported 2.35, while T2 presented the lowest values for both colors. Organic fertilizers based on S:VC can induce good amounts of lycopene in fruits of both colors, as well as improve phenols and antiOX.


2016 ◽  
Vol 4 (10) ◽  
pp. 169 ◽  
Author(s):  
Lilia Salas Pérez ◽  
José Luis García Hernández ◽  
Candido Márquez Hernández ◽  
Manuel Fortis Hernández ◽  
Josue Raymundo Estrada Arellano ◽  
...  

The objective of this study was to determine the proportion of sand, solarized manure, vermicompost and soil capable of increasing tomato fruit yield and lycopene content. The treatments were: T1: 80 % Sand- 20 % Vermicompost (SV), T2: 80 % Sand- 20 % Solarized manure (SSM1), T3: 80 % Sand - 20 % Pelite ?Steiner solution (SPSS), T4: 80 % Sand- 5 % Soil - 15 % Vermicompost (SSoV), T5: 85 % Sand - 15 % Solarized manure (SSM2) and T6: 80 % Sand - 5 % Soil - 15 % Solarized manure (SSoSM). The organic substrates T5, T4, T1 and the control (T3) obtained larger fruits and yields. The lycopene content in tomato fruits grown in the organic substrates was 26 % higher than that obtained in the control treatment. Organic fertilizers improve the nutraceutical quality of tomato fruits, without signi cantly degrading yield. 


Sign in / Sign up

Export Citation Format

Share Document