scholarly journals Electric conductivity levels in irrigation water and application of biofertilizer in peanut Br1 crops

2018 ◽  
Vol 8 (2) ◽  
pp. 347-355 ◽  
Author(s):  
Lunara De Sousa Alves ◽  
Mário Leno Martins Véras ◽  
Danila Lima de Araújo ◽  
José Sebastião de Melo Filho ◽  
Toni Halan Da Silva Irineu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electric Conductivity ◽  
Irrigation Water ◽  
Semiarid Region ◽  
State University ◽  
Randomized Design ◽  
Electrical Conductivities ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Positive Results

Peanut is an oilseed cultivated in semiarid region. However, the lack of knowledge about irrigation and fertilization makes it difficult to increase its yield. Thus, the aim of this research was to study the effect of irrigation with water of different electrical conductivities and application of biofertilizer in peanut Br1. The research was carried out from August to November, 2014 at the State University of Paraíba - Campus IV, Brazil. The study was performed in a completely randomized design in a 4x2 factorial scheme, with four replicates. The treatments were related to different electrical conductivities in the irrigation water: (S1 = 0.8; S2 = 1.5; S3 = 3; e S4 = 4.5 dS m-1) with and without biofertilizer application. It was verified that the electrical conductivity influenced significantly all analyzed variables, except root fresh mass. For biofertilizer application, according to the Tukey´s test, only plant height and number of leaves were significantly influenced. Electrical conductivities in irrigation water above 0.8 dS m-1 reduce peanut growth and biomass production. The application of biofertilizer provides positive results in peanut cultivation in a Fluvic Neosol.

scholarly journals Root biomass and production of cotton cultivars subjected to saline water irrigation

2020 ◽  
pp. 965-970
Author(s):  
André Alisson Rodrigues da Silva ◽  
Márcia Cristina de Araújo Pereira ◽  
Luana Lucas de Sá Almeida Veloso ◽  
Ronaldo do Nascimento ◽  
Elka Costa Santos Nascimento ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Irrigation Water ◽  
Saline Water ◽  
Production Performance ◽  
Semiarid Region ◽  
Saline Water Irrigation ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Different Levels ◽  
Weight Number

Water scarcity and high levels of salinity in irrigation water limit irrigated cotton cultivation in the semiarid region of Northeast Brazil. So, it is necessary to adopt cultivation strategies that make the production system feasible. In this context, the present study aimed to evaluate the biomass and production of cotton cultivars subjected to different levels of saline water irrigation. The experiment was carried out under greenhouse conditions, with treatments distributed in a completely randomized design, in a 5 x 2 factorial arrangement, corresponding to five levels of irrigation water electrical conductivity - ECw (1.5, 3.0, 4.5, 6.0 and 7.5 dS m-1) and two cotton cultivars (BRS 368 RF and BRS Safira), with 4 replicates. Treatment effects were measured by the number of bolls per plant, lint weight, number of seeds per plant, total weight of seeds and dry and fresh biomass of stem, roots and leaves. Irrigation using water with electrical conductivity from 1.5 dS m-1 negatively affects the production of the cotton cultivars BRS SAFIRA and BRS 368 RF, causing reductions in all production variables analyzed. The cultivar BRS Safira has better production performance than BRS 368 RF when exposed to water salinity.

scholarly journals Concentration of injetion solution and its effects on soil and on yield of fertirrigated banana cv. Terra Maranhão

2014 ◽  
Vol 34 (6) ◽  
pp. 1104-1113 ◽  
Author(s):  
Eugênio F. Coelho ◽  
Torquato M. de Andrade Neto ◽  
Damiana L. Barros
Keyword(s):  
Electrical Conductivity ◽  
Soil Solution ◽  
Irrigation Water ◽  
Urea Concentration ◽  
Injection Solution ◽  
Combined Application ◽  
Saturation Extract ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Micro Irrigation

The Fertigation is the combined application of water and nutrients to a crop. It can be adapted to all types of agricultural crops. The objective of this study was to evaluate the effect of urea concentration in irrigation water on electrical conductivity of the soil solution and saturation extract along the first cycle of banana cv. Terra Maranhão. The experiment followed a completely randomized design with six treatments and ten replications. Treatments regarded for using three urea concentrations (1.0; 2.5 and 4.0 g L-1) in irrigation water applied by two micro irrigation systems (microsprinkler and drip). Results showed that there was a linear elevation of electrical conductivity of saturation extract and soil solution with the increase on concentration of urea in the injection solution. Urea should be used under concentrations up to 2.5 g L-1 in irrigation water without causing increase on electric conductivity of soil solution and saturation extract, considering 1.1 dS m-1 as the tolerated value for the crop. Nitrate in the soil solution increased significantly with the increase of urea concentration in the injection solution. The maximum concentration of nitrate in the soil occurred for 4,0 g L-1 concentration of the injection solution.

scholarly journals Growth and chlorophyll in noni seedlings irrigated with saline water in substrate with vermicompost

2019 ◽  
Vol 23 (8) ◽  
pp. 586-590 ◽  
Author(s):  
Daiane G. dos Santos ◽  
Belísia L. M. T. Diniz ◽  
Manoel A. Diniz Neto ◽  
João H. C. S. Silva ◽  
William N. de Oliveira Filho ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Irrigation Water ◽  
Saline Water ◽  
Stem Diameter ◽  
Morinda Citrifolia ◽  
Limiting Factor ◽  
Negative Effects ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Four Levels

ABSTRACT Irrigation is a limiting factor for the development of crops, and all water sources contain salts, which can accumulate in the soil and in the plant, compromising its development. The use of vermicompost is one of the alternatives to mitigate the negative effects of salts on plants. This organic compost is a soil conditioner and a nutrient source for plants. Thus, this study aimed to evaluate the growth and chorophyll of noni (Morinda citrifolia L.) in response to the salinity of irrigation water in substrates with and without vermicompost. A completely randomized design in a 4 × 3 factorial scheme was used, corresponding to four levels of electrical conductivity of the irrigation water (0.5, 1.5, 3.0 and 4.5 dS m-1), in three soil substrates (without humus, with 33.33 and 66.66% of humus). Three months after germination, the following variables were evaluated: plant height; stem diameter; number of leaves; chlorophyll index (a, b and total) in the leaves; and fresh and dry matter of shoots and roots. The increase of salinity in irrigation water negatively influences growth in height, stem diameter, biomass production and chlorophyll a and total indexes, but with lower intensity in substrates with humus, that improves the fertility of the substrate and favors the growth of noni plants, regardless of the salinity of the irrigation water; however, its beneficial effect decreases with the intensification of electrical conductivity of irrigation water.

scholarly journals Agricultural residues as a substrate in the production of eggplant seedlings

2017 ◽  
Vol 35 (4) ◽  
pp. 527-533
Author(s):  
Lorena AM Meneghelli ◽  
Paola AVL Monaco ◽  
Ismail R Haddade ◽  
Caroline M Meneghelli ◽  
Karoline M Almeida
Keyword(s):  
Electrical Conductivity ◽  
Agricultural Residues ◽  
Coconut Fiber ◽  
Treatment Groups ◽  
Randomized Design ◽  
Whole Plant ◽  
Coffee Beans ◽  
Dry Biomass ◽  
Number Of Leaves ◽  
Completely Randomized Design

ABSTRACT The objective of this study was to evaluate the growth variables of eggplants seedlings produced in substrates with different compositions in agricultural residues. The experiment was carried out in a completely randomized design, with five treatments and ten replicates, with the following treatments: T0= Bioplant commercial substrate (control); T1= 10% of moinha (dried residue of coffee beans) + 15% of coconut fiber + 5% of eggshell + 70% of commercial substrate; T2= 20% of moinha + 15% of coconut fiber + 5% of eggshell + 60% of commercial substrate; T3= 30% of moinha + 15% of coconut fiber + 5% of eggshell + 50% of commercial substrate; T4= 40% of moinha+ 15% of coconut fiber + 5% of eggshell + 40% of commercial substrate. The evaluated variables were electric conductivity of the substrate, number of leaves, plant height, stem diameter; and fresh and dry biomass of shoot, root, and of the whole plant. Growing doses of moinha provide increased electrical conductivity in substrate. The treatment groups containing increasing proportions of moinha in the substrate composition present the highest values of growth variables in relation to the commercial substrate. Except shoot, root and total dry biomass, the substrate with 10 and 20% of moinha have the highest values of analyzed variables in eggplant seedlings.

scholarly journals Production of papaya seedlings and initial growth produced in different polyethylene recipients

2021 ◽  
Vol 14 (8) ◽  
Author(s):  
M. Marcolin ◽  
J. A. Massaroto ◽  
R. N. Souza ◽  
R. R. Rocha
Keyword(s):  
Dry Weight ◽  
Dry Mass ◽  
Initial Growth ◽  
State University ◽  
Mato Grosso ◽  
Randomized Design ◽  
Green Matter ◽  
Number Of Leaves ◽  
Polyethylene Bags ◽  
Completely Randomized Design

The objective of this study was to evaluate the vegetative and productive performance of papaya seedlings in response to different volumes of containers. The experiment was conducted in a seedling production nursery at the State University of Mato Grosso (UNEMAT), Campus de Nova Mutum - MT, using a completely randomized design with five replications, in which four sizes of polyethylene bags were tested in the production of seedlings: 10 x 16 cm, 15 x 21 cm, 17 x 27 cm and 20 x 21 The plots were composed of 3 plants. The parameters evaluated at 70 days after sowing were: plant height, stem diameter, number of leaves, root length, green matter mass and percentage of dry weight of the stem, leaves and roots. The container 17 x 27 cm stood out from the other containers, except for the characteristics of the length of the stem, percentage of dry mass of the stem and leaves where it was equivalent to the container 20 x 21 cm and the percentage of dry mass where all containers were equivalent. The experiment showed that the 17 x 27 cm container is the most recommended for the cultivation of papaya seedlings cultivar Sunrise Solo.

scholarly journals EFFECT OF GIBBERELLIN ON GROWTH AND DEVELOPMENT OF Spondias tuberosa SEEDLINGS

2020 ◽  
Vol 33 (4) ◽  
pp. 1124-1130
Author(s):  
FÁBIO SANTOS MATOS ◽  
IGOR ALBERTO SILVESTRE FREITAS ◽  
VICTOR LUIZ GONÇALVES PEREIRA ◽  
WINY KELLY LIMA PIRES
Keyword(s):  
Vegetative Growth ◽  
Growth And Development ◽  
Biomass Accumulation ◽  
State University ◽  
Commercial Exploitation ◽  
Aerial Parts ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Spondias Tuberosa ◽  
Completely Randomized Design

ABSTRACT The development of technologies will certainly contribute to boost the commercial exploitation and domestication of Spondias tuberosa. The objective of the present study was to identify morphophysiological effects of gibberellin on the growth of S. tuberosa seedlings. The experiment was conducted in a greenhouse at the Goiás State University, Brazil, using 300-day-old S. tuberosa seedlings planted in 12-liter pots containing soil (Typic Hapludox), sand, and manure (3:1:0.5). The experiment was conducted in a completely randomized design, with five replications and six treatments consisting of single foliar applications of 30 mL plant-1 of solutions with different gibberellin (GA3) concentrations (0, 150, 300, 450, 600, and 750 mg L-1), using a manual sprayer. The plants were evaluated at 60 days after the applications. The maximum biomass accumulation in S. tuberosa seedlings was found with the use of 415 mg L-1 of GA3. The use of gibberellin accelerated the vegetative growth of S. tuberosa plants and enabled the formation of seedlings with better root system and xylopodium, and aerial parts with greater number of leaves, leaf area, and stem weight.

scholarly journals A New Approach to Determine Time and Temperature Combination for Electrical Conductivity Test in Sorghum

2015 ◽  
Vol 3 (6) ◽  
pp. 402 ◽  
Author(s):  
Mehmet Demir Kaya ◽  
Onur İleri
Keyword(s):  
Electrical Conductivity ◽  
Germination Percentage ◽  
Optimum Combination ◽  
Seed Moisture Content ◽  
New Approach ◽  
Randomized Design ◽  
Seed Moisture ◽  
Electrical Conductivities ◽  
Completely Randomized Design ◽  
Initial Seed

This study was conducted to determine a suitable time and temperature combination for the electrical conductivity test to be used in sorghum seeds. Fifty seeds known initial seed moisture content and weight of fresh and dead seeds (105°C for 6h) of seven sorghum cultivars were used as material. The electrical conductivities of soaking water were measured using an EC meter in 20, 25 and 30°C for 4, 8, 12 and 24 h using 50 mL deionized water. The experimental design was three factor factorial (7 × 3 × 4) arranged in a completely randomized design; with four replications and 50 seeds per replicate. The results showed that increased time and temperature caused a remarkable increase in EC values of all of the cultivars. Temperature significantly affected the electrical conductivity values and the best results were obtained at 25°C. The cultivars with the lower germination percentage gave the higher electrical conductivity value. Dead seeds always gave higher electrical conductivity at 25°C for all periods. It was concluded that the temperature of 25°C and 24 h was the optimum combination for the electrical conductivity test in sorghum.

scholarly journals Production and water yield of cauliflower under irrigation depths and nitrogen doses

2019 ◽  
Vol 23 (8) ◽  
pp. 561-565
Author(s):  
Reginaldo M. de Oliveira ◽  
Rubens A. de Oliveira ◽  
Sanzio M. Vidigal ◽  
Ednaldo M. de Oliveira ◽  
Lorença B. Guimarães ◽  
...  
Keyword(s):  
Water Depth ◽  
Irrigation Water ◽  
Water Yield ◽  
Crop Evapotranspiration ◽  
Fresh Weight ◽  
Randomized Design ◽  
Mean Diameter ◽  
Irrigation Depth ◽  
Completely Randomized Design ◽  
Water Depths

ABSTRACT Cauliflower is a brassica produced and consumed in Brazil, whose cultivation depends on the adequate supply of water and nutrients. The objective of this study was to evaluate the effect of irrigation depths and nitrogen doses on the production components and water yield of cauliflower hybrid Barcelona CMS. The treatments consisted of five irrigation water depths (0, 75, 100, 125 and 150% of the crop evapotranspiration) combined with five nitrogen doses (0, 75, 150, 300 and 450 kg ha-1). The experiment was conducted in a completely randomized design with a split-plot arrangement. The effects of these factors were evaluated using the response surface methodology. The water yield of the crop decreases with increasing irrigation water depth; therefore, the yield is higher when water replenishment is lower than the recommended. The highest estimated total inflorescence yield is 24,547.80 kg ha-1, with a inflorescence mean diameter of 19.60 cm, a inflorescence mean height of 12.25 cm, and an inflorescence fresh weight of 858.90 g plant-1, obtained with an irrigation water depth equivalent to 132.09% of the crop evapotranspiration (ETc) and a nitrogen dose of 450 kg ha-1. The highest inflorescence diameter and height are obtained with an irrigation depth equivalent to 128.70 and 108.20% of ETc, respectively, and a nitrogen dose of 450 kg ha-1. Therefore, the best productivity response of the Barcelona CMS cauliflower hybrid can be obtained using an irrigation depth greater than the crop evapotranspiration, regardless of the nitrogen doses.

Subsitusi Fitohormon Dengan Air Kelapa (Cocos nucifera L.) pada Medium Vacin and Went Terhadap Pertumbuhan Eksplan Anggrek Dendrobium sp Secara in Vitro

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Wulan Dari Neng Gumiwang ◽  
Tintrim Rahayu ◽  
Ari Hayati
Keyword(s):  
Root Length ◽  
Cocos Nucifera ◽  
Water Concentration ◽  
Coconut Water ◽  
Culture Bottle ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Cocos Nucifera L

The purpose of this research is to determine the concentration of young coconut water that is appropriate for the growth of orchid plantlets (Dendrobium sp.) In vitro. This study used an experimental method, descriptive data analysis to compare several different concentrations of coconut water. The design of this study uses a completely randomized design (CRD). The treatments consist of 0% coconut water concentration (as a control), 15%, 30% and 60%. Each concentration was carried out 5 replications and each repetition consisted of 5 Dendrobium sp plantlets in each culture bottle conducted for 40 HST, for observing the root length carried out for 50 HST. The highest number of shoots and leaves were produced at the same concentration, namely 150 ml / L coconut water treatment (15% concentration) with an average of 2.8 shoots and the average number of leaves 10.8 leaves. The average number of roots and the longest root length was produced at a concentration of 600 ml / L coconut water (60% concentration) with an average of 6 roots, and the longest root length was 0.5 cm.Keywords: Young coconut water, (Cocos nucifera L.), Dendrobium sp., in vitro, growth.ABSTRAKTujuan penelitian ini ialah menentukan konsentrasi air kelapa muda yang tepat untuk pertumbuhan planlet anggrek (Dendrobium sp.) secara in vitro. Penelitian ini menggunakan metode eksperimen, analisis data secara deskriptif untuk membandingan beberapa konsentrasi air kelapa yang berbeda. Rancangan penelitian ini menggunakan Rancangan Acak Lengkap (RAL). Perlakukan terdiri dari konsentrasi air kelapa 0 % (sebagai kontrol), 15% , 30% dan 60%. Masing-masing konsentrasi dilakukan 5 kali ulangan dan setiap ulangan terdiri dari 5 planlet Dendrobium sp dalam setiap botol kultur yang dilakukan selama 40 HST, untuk pengamatan panjang akar dilakukan selama 50 HST. Jumlah tunas dan jumlah daun terbanyak dihasilkan pada konsentrasi yang sama, yaitu perlakuan air kelapa 150 ml/L (konsentrasi 15%)  dengan rata-rata jumlah tunas terbanyak 2,8 tunas dan rata-rata jumlah daun terbanyak 10,8 helai daun. Rata-rata jumlah akar terbanyak dan panjang akar terpanjang dihasilkan pada konsentrasi air kelapa 600 ml/L (Konsentrasi 60%) dengan rata-rata jumlah akar terbanyak sebanyak 6 akar, dan rata-rata panjang akar terpanjang 0,5 cm.Kata kunci : Air kelapa Muda (Cocos nucifera L.), Dendrobium sp., in vitro, pertumbuhan 

GROWTH RESPONSE OF BEHA GRASS (Brachiaria humidicola) FERTILIZED WITH GOAT MANURE

2021 ◽  
Vol 2 (3) ◽  
Author(s):  
Budiman Budiman ◽  
Natsir Sandiah ◽  
La Malesi
Keyword(s):  
Plant Height ◽  
Root Length ◽  
New Production ◽  
Brachiaria Humidicola ◽  
Randomized Design ◽  
Length Data ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Goat Manure ◽  
Difference Test

This study aimed to determine the best dosage of goat manure as a natural fertilizer on Beha grass(Brachiaria humidicola). This study used 64 poles of Beha grass grown in polybags divided into 16plots, and it used a completely randomized design (CRD) to analyze the data. This study consist of 4treatments that is P0 (0 ton/ha of goat manure), P1 (10 ton/ha of goat manure), P2 (15 ton/ha of goatmanure), and P3 (20 ton/ha of goat manure). This study's variables were plant height, number of leaves,numbers of tillers, new production, and root length. Data analysis used ANOVA variance continued withreal honest difference test. The result of this study showed that averages of plant height (cm) wereP0=26, P1=50.5, P2=51.5, and P3=52.75. Averages of the number of leaves were P0=22, P1=110,P2=160, and P3=185. Averages of numbers of tillers were P0=7, P1=25, P2=37, and P3=38. Averages ofnew production (g) were P0=17.75, P1=123.5, P2=178, and P3=192.25. Averages of root length (cm)were P0=37.8, P1=39.5, P2=41.775, and P3=49.5. Fertilization with natural fertilizer from goat manurehas a genuine effect (P<0.01) on the growth of Beha grass. The best dosage of fertilization with goatmanure was 15 ton/ha.

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