scholarly journals POTENCIAL DO USO DE ÁGUA RESIDUÁRIA NA SILVICULTURA UTILIZANDO ESPÉCIES NATIVAS DA CAATINGA

Irriga ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 93
Author(s):  
SILVANETE SEVERINO da SILVA ◽  
Cláudia Facini Reis ◽  
Salomão De Sousa Medeiros ◽  
Renan Ferreira da Nóbrega ◽  
José Dantas Neto

POTENCIAL DO USO DE ÁGUA RESIDUÁRIA NA SILVICULTURA UTILIZANDO ESPÉCIES NATIVAS DA CAATINGA   SILVANETE SEVERINO DA SILVA1; CLAÚDIA FACINI REIS2; SALOMÃO DE SOUSA MEDEIROS3; RENAN FERREIRA DA NÓBREGA4 E JOSÉ DANTAS NETO5 1Doutoranda em Engenharia Agrícola, UFCG, Campina Grande - Paraíba. Email: [email protected] e 3Doutor (a), Pesquisador (a) do INSA, Campina Grande - Paraíba. Email: [email protected]; Email: [email protected] Ambiental da Unidade Acadêmica de Ciências e Tecnologia Ambiental do Centro de Ciência e Tecnologia Agroalimentar da Universidade Federal de Campina Grande. Email: [email protected] do departamento de Engenharia Agrícola da Universidade Federal de Campina Grande. Email: [email protected]  1 RESUMO O cultivo de espécies nativas da caatinga, irrigadas com água residuária de esgoto doméstico, caracteriza-se como uma ação para recuperação de áreas degradadas para mitigação dos efeitos da seca. O objetivo da execução do presente trabalho foi avaliar o crescimento de espécies nativas na região semiárida. O ensaio foi conduzido em campo de áreas de solo com degradação agrícola e biológica. A aplicação dos tratamentos foi realizada 120 dias após o transplantio. Utilizou-se um delineamento em blocos casualizados, dispostos em faixas, com 10 tratamentos resultantes da combinação fatorial 2x5 (2 lâminas e 5 cultivares) com 4 repetições, totalizando 40 subparcelas. As espécies cultivadas foram: Aroeira branca - Astroium urundeuva (Allemão), Ipê roxo - Tabebuia avellanedae, Braúna – Schinopsis brasiliensis Engl, Catingueira – Caesalpinia pyramidalis e Freijó – Cordia trichotoma, em espaçamento 3x2 m, com área útil de 1,98 m2, com área total de 3600 m². As irrigações foram feitas com 2 lâminas semanais e 3 frequências (aplicação diária de 2,8 L dia-1, aplicação duas vezes por semana de 7,0 L dia-1, aplicação diária de 1,4 L dia-1, aplicação uma vez por semana 7,0 L dia-1 e aplicação uma vez por semana 14,0 L dia-1). Avaliou-se o crescimento de plantas aos 60 dias após o transplantio, através da mensuração da altura da planta-1, diâmetro caulinar e número de folhas planta-1. O Ipê Roxo e Freijó apresentaram maior índice de crescimento. Palavras-chaves: Irrigação, Crescimento, Degradação Agrícola.  SILVA, S. S. da; REIS, C. F.; MEDEIROS, S. de S.; NÓBREGA, R. F. da; DANTAS NETO, J.POTENTIAL OF WASTEWATER USE IN FORESTRY USING CAATINGA NATIVE SPECIES  2 ABSTRACT We studied the growth of native species in the semiarid region. The test was conducted in soil areas, with agricultural and biological degradation. The application of the treatments was held 120 days after transplanting. We used a randomized block design, arranged in groups, with 25 treatments resulting from the factorial combination 5x5 (5 treatments and 5 cultivars) with 4 repetitions, totaling 100 subplots. Cultured species were braúna, catingueira white mastic, freijó and purple ipe tree, in 3x2 spacing, with a floor area of 1.98 m², in a total area of 3600m². The frequency of applied irrigation was: daily application 2.8 L day-1, application twice a week from 7 L day -1, daily application of 1.4 L day-1, applied once a week 7 L day-1 and application once a week 14 L day-1, except Saturdays and Sundays, respectively. We evaluated the growth of agro-forestry plants at 60 days after transplanting (DAT), by measuring plant-1 height, stem diameter and number of leaves in plant-1. The Purple Ipe tree and Freijó showed a higher growth rate. Keywords: irrigation, growth, agricultural degradation. 

2020 ◽  
Vol 8 (1) ◽  
pp. 27-34
Author(s):  
Sonni Senna Dimas Airlangga ◽  
Mochammad Munir ◽  
P Poniman

The production of shallots in Brebes has not been significantly free from the use of chemical pesticides. Preventive land contaminated with pesticides needs to be done, one of which is through the improvement of polluted land using biochar. The study was aimed to determine the effectiveness of the effect of urea plus nano biochar and urea plus biochar enriched by microbial consortia on the status of C-organic, pH, and soil microbial populations and their effects on profenofos residues. The experiment was designed with a Randomized Block Design with 5 treatments including: P (without biochar and microbes), B (Urea plus biochar), BM (Urea plus biochar and microbial), NB (Urea plus nano biochar), NBM (Non-biochar and microbial) Urea added with nano biochar and microbes), and repeated 4 times, so that the number of research units was 20 units. The microbes used in enriching urea plus biochar are microbial consortia, Stenotrophomonas maltophilla, Achromobacter denitrificans, Bacillus cereus, Bacillus subtilis, Bacillus thuringiengsis and Bacillus aryabathai. The results of the study include, the administration of urea plus biochar and nano biochar with microbial consortia did not have a significant effect on pH, C-organics, soil microbial populations and profenofos residues. At 35 and 63 DAP the highest pH of treatment B was 5.84, and 6.53. Organic C-35 and 63 DAP at low criteria are 1.12 - 1.30%. The highest microbial population of 35 and 63 DAP in treatment B was 485 x 106. The highest growth rate of plant length in the BM treatment with a value of 6.06 cm week-1, while the growth rate of the number of leaves in the BM treatment had a higher yield compared to other treatments , with a value of 2.88 strands week-1.


FLORESTA ◽  
2020 ◽  
Vol 50 (2) ◽  
pp. 1379
Author(s):  
Cleberton Correia Santos ◽  
Rafael Da Cruz Chiquito Ortega ◽  
Juliana Milene Silvério ◽  
Henrique Chacha Poyer ◽  
Silvana De Paula Quintão Scalon ◽  
...  

The use of N fertilizers can contribute to seedling production in native species, such as Alibertia sessilis (Vell.) K. Schum, a fruit plant of the Cerrado ecoregion. Considering that there are few studies on mineral nutrition for this species, the aim of this study was to evaluate the effect of N on the growth and photosynthesis photochemical of A. sessilis. The experiment was carried out in plastic pots in a greenhouse with five N (urea) concentrations: 0, 25, 50, 75, and 100 mg kg-1. The experimental design used was a randomized block design with four repetitions. At day 180 after transplantation, morphometric and photochemical characteristics, including biomass and seedling quality, were evaluated. Seedling survival, the stem diameter of the harvest, and the height/diameter ratio were not influenced by N. The maximum height was 14.38 cm with 54.2 kg-1 N. The greatest number of leaves and value of the chlorophyll index were found in seedlings produced with maximum doses of N. The photochemical characteristics of photosynthesis, except initial fluorescence, were positively influenced with N concentrations between 60-85 mg kg-1 N. The largest fresh leaf and stem biomass was 2.391 and 0.257 g plant-1 with 54.0 and 33.0 mg kg-1 of N, respectively. The multivariate analysis of the major components explained 79.81% of the remaining data variability. The seedlings of A. sessilis responded positively during the initial growth phase, reflected in their biomass, with N concentrations close to 50.0 mg kg-1.


2018 ◽  
Vol 9 (2) ◽  
pp. 153-163
Author(s):  
Wiwik Ambarsari ◽  
Henly Yuliana

The study aimed to determine the effect of the combination of city waste compost and cattle manure on the growth and yield of pakcoy plants (Brassica rapa, L. Chinensis) in Aluvial, Indramayu Regency. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Wiralodra University, Indramayu Regency from March to August 2018. This study used Factorial Pattern Randomized Block Design with two factors. The first factor is city waste compost and the second factor is cattle manure with 4 levels: 0%, 3.0%, 6.0%, and 9.0%, repeated twice. The results showed that there was an independent influence between city waste compost and cattle manure on plant height and number of leaves. The best combination to increase the feasibility weight of pakcoy consumption is by giving city waste compost 9.0% (S4) and cattle manure 6.0% (K3).


2016 ◽  
Vol 38 (2) ◽  
pp. 119 ◽  
Author(s):  
Davi De Holanda Cavalcante ◽  
Francisco Roberto dos Santos Lima ◽  
Vanessa Tomaz Rebouças ◽  
Marcelo Vinícius do Carmo e Sá

The present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m-3), on variables of water quality, growth performance and effluent quality after 10 weeks. The experiment was arranged in a 2 x 2 factorial randomized block design with four treatments and five repetitions each. The factors tested were the following: ‘underwater structure’ (absence and presence) and ‘adjustment of the C: N ratio of water’ (no and yes). The final fish body weight, specific growth rate and yield were higher (p < 0.05) in the C: N-adjusted tanks. The presence of submerged structures in the tanks had no significant influence on those same variables. It was concluded that the periphyton-based system is not indicated for intensive farming of Nile tilapia, in which there is a high allowance of artificial feed to fish. 


2012 ◽  
Vol 40 (1) ◽  
pp. 212 ◽  
Author(s):  
Ines HAN DOVEDAN ◽  
Sanja MORIC ◽  
Zoran SINDRAK ◽  
Ivana CEROVSKI ◽  
Ivan MUSTAC ◽  
...  

Iris adriatica is indigenous to Mediterranean part of Croatia. It is an attractive plant and has opportunities for introduction into horticulture and the ornamental plant market. Research was conducted in the experimental garden of the Faculty of Agriculture, University of Zagreb, to assess the possibility of growing this species as a pot plant. Research included 360 potted plants placed as randomized block design experiment. The goal of this research was to determine influence of chosen substrates and fertilizers, as well as to explore growth and development dynamic of the species cultivated outdoors from June till August 2010. The following characteristics were measured: plants height, number of leaves, and number of rosettes. Biometric analysis showed that the development of Iris adriatica was significantly influenced only by substrate, while fertilization and interaction of substrate and fertilization showed no significant impact on examined plants characteristics.


Revista CERES ◽  
2017 ◽  
Vol 64 (4) ◽  
pp. 392-398
Author(s):  
Diego Magalhães de Melo* ◽  
Eugênio Ferreira Coelho ◽  
Raul Castro Carriello Rosa ◽  
Ana Lucia Borges ◽  
Djalma Barbosa dos Santos ◽  
...  

ABSTRACT The use of humic substances and plant extract has been increasing mainly in organic crop systems without scientific-based recommendations. Research is necessary to evaluate the feasibility and the recommendations of these substances. The objective of this work was to evaluate the effect of humic substances (humic and fulvic acids) applied by fertigation with and without saponin-based plant extracts on growth and yield of ‘BRS Princesa’ banana. The experiment was carried out using the banana cultivar ‘BRS Princesa’, at a spacing of 2.0 × 2.5 m, fertigated by drip irrigation in a Dystric Densic Xantic Ferralsol, at the Recôncavo da Bahia, Brazil. Treatments consisted of five doses of humic substances (0.0; 70; 105; 140, and 210 L ha-1cycle-1) applied with and without a saponin-based plant extract in a randomized block design in split-plot scheme. The following growth variables were evaluated: number of leaves, pseudostem height, pseudostem diameter, and length and width of the third leaf. The number of fruits/hand and hands/bunch, hand and bunch yield, and length and fruit diameter of the second central hand were evaluated during harvest. The doses of humic substances influenced only pseudostem height. Hand yield, as well as fruit length and diameter of ‘BRS Princesa’ banana were higher in plants fertigated with humic substance and plant extract in comparison with plants fertigated with only humic substance.


2021 ◽  
Vol 4 (2) ◽  
pp. 122-129
Author(s):  
Enda Sabda Gentri Sembiring ◽  
Julaili Irni ◽  
Rama Riana Sitinjak ◽  
Bayu Pratomo

Introduction: This study aims to determine the growth response of Mucuna bracteata cuttings to the concentration and duration of soaking shallot extract. Materials and Methods: This study used a factorial Randomized Block Design (RBD) with two factors, namely: shallot extract concentration (P) consists of 4 levels, include P0= untreated, P1= 10 ml, P2= 20 ml, P3= 30 ml, meanwhile the soaking time (Q) consists of 4 levels, such as Q0= momentarily dipping, Q1= 15 minutes, Q2= 30 minutes, Q3= 45 minutes. The data was processed by ANOVA and if significant, then further tested with Duncan Multiple Range Test (DMRT) at the rate of 5%. Results: The concentration of shallot extract, soaking time and their interaction had a very significant effect on the survival percentage of Mucuna bracteata D.C. cuttings. The highest survival percentage of cuttings of Mucuna bracteata on the effect of shallot extract concentration and soaking time was obtained in the P0Q0, P0Q1, and P3Q2 treatments after the lid was opened at 4 weeks after planting. In the number of leaves also had significant effect in the interaction of two factors


2018 ◽  
Vol 8 (2) ◽  
pp. 50-55
Author(s):  
Lukman Arif

This study aims to determine to determine the effect of land spinach plant growth due to the provision of liquid organic fertilizer palm sugar and to determine the right concentration of palm sugar palm POC to the growth of land spinach plants. This experiment used a single factor randomized block design consisting of 4 replications of 4 treatments. The best experimental results on plant height and number of leaves, leaf length and leaf width aged 14 and 24 HST were influenced by the use of palm juice 40 ml / L water with a height of 19.59 cm and 32.13 cm number of leaves 6.34 and 12.25 strands, leaf length 13.71 and 15.75 while leaf widths are 1.74 and 3.48 cm.


2018 ◽  
Vol 45 (3) ◽  
pp. 263
Author(s):  
Endriani , ◽  
Munif Ghulamahdi ◽  
Dan Eko Sulistyono

Soybean (Glycine max L. Merrill) demand is high in Indonesia, however national production is low, therefore improving productivity is important. The research was aimed to determine the effect of application of biofertilizer containing N- fixing and P- solubilizing bacteria on the growth and production of soybean in lowland swamp. The experiment was conducted  at  Labuhan Ratu VI Village, District of Labuhan Ratu, East Lampung Regency from September to December 2014. The experiment was arranged in factorial randomized block design with three replications. N and P fertilizers were applied in four levels. Doses of N were 0, 11.25, 22.50, 33.75 kg ha-1, doses of P were 0, 36, 72, 108 P2O5 kg ha-1, in combination with and without biofertilizer application. The results showed that interaction between biofertilizer and N significantly affected number of branches and number of leaves at maximum vegetative phase. The influence of three types of fertilizer had no significant effect on the productivity of soybean in lowland swamp with soil pH of 7.0 and medium soil fertility. It is recommended to apply Biofertilizer + 11,25 kg N ha-1 + 36 kg P2O5 ha-1 to obtain high soybean production in lowland swamp area.<br /><br />Keywords: nitrogen, phosphate, productivity, soil fertility<br /><br />


Author(s):  
Irpan Gunawan ◽  
Atak Tauhid ◽  
Isna Tustiyani

<p><em>Cauliflower is one of the vegetables for consumers. The demand for cauliflower was rising so it must be scaled up with fertilizer. The purpose of this study was to study the effect of chicken manure and NPK fertilizer on the growth and yield of cauliflower. The study was conducted in Sukasenang Village, Banyuresmi Sub-district, Garut Regency from July to August 2019. The study used a Randomized Block Design (RBD) in two factors each of the 3 rates with 2 replications. The first factor was the rates of chicken manure which consisted of 0, 10 and 20 tons ha<sup>-1</sup>; the second factor was NPK fertilizer which consists of 0, 100 and 200 kg ha<sup>-1</sup>. The parameter of this research was plant height, number of leaves, leaf area, weight and diameter crud. The results showed that there was no interaction between the chicken manure and NPK fertilizer. The treatment of 20 tons ha<sup>-1</sup> chicken manure affected the variable plant height, the number of leaves and leaf area. The rates of 200 kg ha<sup>-1</sup> NPK fertilizer had affected plant height, number of leaves, weight and diameter crud.</em></p>


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