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.

scholarly journals Estimated production and evapotranspiration of irrigated bean cultivars

2014 ◽  
Vol 34 (6) ◽  
pp. 1089-1103
Author(s):  
Márcio J. de Santana ◽  
Leandro B. Lemos ◽  
Stefany S. de Souza ◽  
Talita M. Campos ◽  
Flávia M. da Silva ◽  
...  
Keyword(s):  
Water Balance ◽  
Soil Water ◽  
Water Depth ◽  
Soil Water Balance ◽  
Crop Evapotranspiration ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Technology Institute ◽  
Optimum Water ◽  
Water Depths

The current study intended to determine the optimum water depth, yield and evapotranspiration (ETc) for bean cultivars. The experiment was conducted in the Campus of Unit I of the Triângulo Mineiro Federal Education and Technology Institute in Uberaba, MG, in a completely randomized design with three replications. The treatments consisted of four water-replacing levels in the soil (70, 100, 130 and 160% of the crop evapotranspiration) and four bean cultivars (Pérola, BRSMG Madrepérola, BRSMG Majestoso and IAC Alvorada). The average values of ETc obtained for soil water balance for the cultivars Pérola, BRSMG Madrepérola, BRSMG Majestoso and IAC Alvorada were, respectively, of 5.25 mm day-1, 4.59 mm day-1, 4.54 mm day-1 and 4.77 mm day-1. The water depths which provided the highest yields were for the cultivars Pérola, BRSMG Madrepérola, BRSMG Majestoso and IAC Alvorada of 451.61 mm, 454.41 mm, 504.71 mm and 344.30 mm, respectively. The maximum yields found were 4597.87 kg ha-1 (Pérola), 4546.27 kg ha-1 (BRSMG Madrepérola), 4253.39 kg ha-1 (BRSMG Majestoso) and 3958.50kg ha-1 (IAC Alvorada).

scholarly journals Economically optimal water depth and grain yield of common bean subjected to different irrigation depths

2018 ◽  
Vol 22 (7) ◽  
pp. 482-487 ◽  
Author(s):  
Chaiane G. da Conceição ◽  
Adroaldo D. Robaina ◽  
Marcia X. Peiter ◽  
Ana R. C. Parizi ◽  
João A. da Conceição ◽  
...  
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Technical Efficiency ◽  
Water Depth ◽  
Critical Periods ◽  
Crop Evapotranspiration ◽  
Randomized Design ◽  
The Common ◽  
Completely Randomized Design ◽  
Bean Crop

ABSTRACT Common bean crop plays an important role in the world, not only in economic aspects but also in social development. The objective of this study was to evaluate the grain yield and the economically optimal water depth which reflects the maximum technical efficiency of the common bean crop. The experiment was conducted in greenhouse, in Alegrete - RS, from February to May 2016. A completely randomized design was used, consisting of five water replacement treatments (25, 50, 75, 100 and 125% crop evapotranspiration - ETc) and four replicates. Based on the obtained results, both water deficit and water excess directly affected the final grain yield of the crop. Maximum grain yield was 3,554.1 kg ha-1, obtained by applying 492.72 mm (100% ETc). On the other hand, the economically optimal water depth was estimated at 91.2% ETc, indicating that water depths above this value are not suitable for maximum technical efficiency in the common bean crop under these conditions. It was concluded that the water depth equivalent to 100% ETc maximizes grain yield for the region of Alegrete-RS, and irrigation is considered a solution in the water supply to the common bean crop during critical periods.

scholarly journals EFEITO DA LÂMINA DE IRRIGAÇÃO NA SENESCÊNCIA FOLIAR DO FEIJOEIRO

Irriga ◽  
2007 ◽  
Vol 12 (4) ◽  
pp. 557-568 ◽  
Author(s):  
Reimar Carlesso ◽  
Sidnei Osmar Jadoski ◽  
Marcio Furlan Maggi ◽  
Mirta Petry ◽  
Dolores Wolshick
Keyword(s):  
Leaf Senescence ◽  
Water Depth ◽  
Irrigation Water ◽  
Area Index ◽  
Agricultural Engineering ◽  
Randomized Design ◽  
Bean Plants ◽  
Engineering Department ◽  
Irrigation Depth ◽  
Santa Maria

EFEITO DA LÂMINA DE IRRIGAÇÃO NA SENESCÊNCIA FOLIAR DO FEIJOEIRO  Reimar Carlesso1; Sidnei Osmar Jadoski2; Marcio Furlan Maggi2; Mirta Petry3; Dolores Wolshick31Departamento de Engenharia Rural, Centro de Ciências Ruruais, Universidade Federal de Santa Maria, Santa Maria, RS, [email protected] de Agronomia, Universidade Estadual do Centro Oeste-UNICENTRO, Guarapuava, PR 3Departamento de Agronomia, Universidade Federal do Paraná, Curitiba, PR  1 RESUMO Com este trabalho, objetivou-se avaliar as variações na morfologia das plantas de feijoeiro frente a diferentes lâminas de irrigação. O experimento foi conduzido no Departamento de Engenharia Rural da Universidade Federal de Santa Maria,RS. A cultivar de feijão preto BR-FEPAGRO 44 – Guapo brilhante (tipo II) foi submetida a quatro regimes hídricos visando elevar o conteúdo de água no solo ao limite superior de disponibilidade às plantas, quando a evapotranspiração máxima da cultura indicava lâminas acumuladas de 15, 30, 45 ou60 mm. Utilizou-se delineamento experimental inteiramente casualizado com cinco repetições. Com os resultados verificou-se que a partir da fase de pleno florescimento, os maiores valores de índice de área foliar e altura das plantas foram alcançados através do uso de irrigações mais freqüentes com menores lâminas. Observou-se efeito significativo da irrigação sobre a altura das vagens inferiores em relação à superfície do solo, porém, não sobre o número de nós e comprimento dos entrenós na haste principal das plantas. A irrigação com aplicação de lâmina crítica de45 mmdeterminada a partir da evapotranspiração máxima acumulada da cultura, limitou severamente a expansão do dossel vegetativo das plantas.  UNITERMOS: feijão, lâmina de irrigação, deficiência hídrica, senescência foliar  CARLESSO, R.; JADOSKI, S. O.; MAGGI, M. F.; PETRY, M.; WOLSHICK, D. BEAN LEAF SENESCENCE UNDER DIFFERENT IRRIGATION WATER DEPTH  2 ABSTRACT The objective of this study was to evaluate the application effects  of different irrigation depths based on the maximum crop evapotranspiration (ETm), on morphological modifications of bean plants. The senescence experiment was conducted in the Agricultural Engineering Department of Federal University ofSanta Maria. The variety BR-FEPAGRO 44 (type II) was submitted to four irrigation water managements. The irrigation treatments were based on the ETm (15, 30, 45 and60 mm, obtained from the class A pan evaporation) and distributed in a completely randomized design, with five replications. The results demonstrated that leaf area index and plant height increased with the reduction of irrigation application depth after plant anthesis. The irrigation water depth affected the tip height of the first pod, however, the number of nodes per stem and internodes length was not affected. The irrigation water management with the application of irrigation depth of45 mmdecreased severely the vegetative growth of plants. KEYWORDS: bean, irrigation depth, drought stress, leaf senescence

scholarly journals Onion productivity in relation to irrigation water depths and nitrogen doses

2018 ◽  
Vol 36 (1) ◽  
pp. 73-76
Author(s):  
Júlio Cezar M Baptestini ◽  
Rubens A Oliveira ◽  
Sânzio M Vidigal ◽  
Mário Puiatti ◽  
Paulo Roberto Cecon
Keyword(s):  
Irrigation System ◽  
Irrigation Management ◽  
Economic Value ◽  
Sprinkler Irrigation ◽  
Fertility Control ◽  
Crop Evapotranspiration ◽  
Vegetative Period ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Water Depths

ABSTRACT Onion is considered the third most important vegetable in terms of economic value in Brazilian horticulture. The factors of production which most limit the productivity of the species are water and nutrients; so, irrigation and soil fertility control are determinant criteria for crop success. The aim of this study was to evaluate the influence of different water depths and nitrogen doses on the productivity of onion, Aquarius hybrid. Five water depths [(0, 75, 100, 125 and 150% of crop evapotranspiration (ETc)] and five nitrogen doses (0, 120, 180, 240 and 300 kg ha-1, urea form), arranged in a scheme of subdivided plots, in a completely randomized design with four replicates. We used sprinkler irrigation system. Irrigation management and water depths were estimated using Irrigameter. Plants were harvested when more than 60% of them completed the vegetative period. The water depth corresponding to 150% of the crop evapotranspiration provided higher total and commercial onion productivities, applying doses of 226.8 and 229.8 kg ha-1 of nitrogen, respectively.

scholarly journals MORPHOPHYSIOLOGICAL RESPONSES OF COWPEA GENOTYPES TO IRRIGATION WATER SALINITY

2017 ◽  
Vol 30 (4) ◽  
pp. 1001-1008
Author(s):  
JOÃO PEDRO ALVES DE AQUINO ◽  
ANTÔNIO AÉCIO DE CARVALHO BEZERRA ◽  
FRANCISCO DE ALCÂNTARA NETO ◽  
CARLOS JOSÉ GONCALVES DE SOUZA LIMA ◽  
RAYLSON RODRIGUES DE SOUSA
Keyword(s):  
Irrigation Water ◽  
Dry Matter ◽  
Arid Regions ◽  
Stem Diameter ◽  
Water Salinity ◽  
Productive Capacity ◽  
Randomized Design ◽  
Irrigation Water Salinity ◽  
Water Salt ◽  
Completely Randomized Design

ABSTRACT Cowpea is broadly cultivated worldwide, especially in semi-arid or arid regions where soil or irrigation water salt contents can negatively influence the species’ productive capacity. The objective of this study was to evaluate the morphophysiological responses of cowpea genotypes to irrigation water salinity. The experiment was conducted in a greenhouse, under a completely randomized design with nine replications and in a 5x3 factorial scheme. Treatments consisted of five levels of irrigation water electrical conductivity - EC (EC0: 0.55; EC1: 1.60; EC2: 3.20; EC3: 4.80 and EC4: 6.40 dS m-1), applied from the 15th day after sowing (DAS), and three cowpea genotypes (G1: BRS Imponente; G2: MNC04-795F-168 and G3: MNC04-795F-159). EC increases at 35 DAS promoted stem diameter reductions of 8.0% (G1), 11.4% (G2), and 7.7% (G3), indicating different resistance to salinity by each genotype. Leaf area reductions at 25 and 38 DAS were 30.9% and 38.8% for EC0 and EC4, respectively. The BRS Imponente cultivar presented a performance superior to those of G2 and G3 in relation to stem diameter and stem dry matter at 25 DAS, and root-shoot and root-leaf ratios at 38 DAS.

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 THE ADDITION OF COCONUT WATER AND THIAMINE TOWARDS CHRYSSANTHENUM MICRO CUTTINGS (Dendranthema grandiflora Tzvelev) IN VITRO

Agrivet ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 39
Author(s):  
Salma Nabila ◽  
Endah Budi Irawati ◽  
Rina Srilestari
Keyword(s):  
Water Concentration ◽  
Coconut Water ◽  
Fresh Weight ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Range Test ◽  
Growing Shoot

Chryssanthenum is ornamental plant with variety of shape and color which are unique and appealing. So that, it is in great demand in the community. The production of Chrissanthenum conventionally hampered by availability and quality of seeds. Thus, it needs research through tissue culture. The aim of this research is to know interaction between coconut water and thiamine and to determine the best coconut water and thiamine concentration toward Chryssanthenum micro cuttings. This research used laboratory experimental method by using completely randomized design with two factor. The 1st factor was coconut water concentration consisted of three level which were 5%, 10% and 15%. The 2nd factor was thiamine concentration consisted of three level which were 1mg/L, 2 mg/L and 3 mg/L. From the two factors, those were found that, there were nine combination of treatments and repeated 3 times. The variety  of data was analyzed by using Analysis of Variance (ANOVA) with level of α=5%, and continued by examining Duncan’s Multiple Range Test (DMRT) with level of α=5%. The result indicated that the interaction of coconut water concentration was 5% and thiamine was 1 mg/L on the parameters when growing shoot. There was also interaction on coconut water concentration which was 10 % and thiamine was 1 mg/L on the parameters in the number of shoots. interaction of coconut water combination was 15% and thiamine was 2 mg/L on  fresh weight. The addition of 10% coconut water and 1 mg/L thiamine showed the best result on shoot length.

scholarly journals Productive characteristics of banana genotypes submitted to different irrigation water depths under Cerrado conditions

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2351
Author(s):  
Luciana Borges e Silva ◽  
Jorge Luís do Nascimento ◽  
Ronaldo Veloso Naves ◽  
Juracy Rocha Braga Filho ◽  
Wilian Henrique Diniz Buso ◽  
...  
Keyword(s):  
Water Depth ◽  
Irrigation Water ◽  
Potential Evapotranspiration ◽  
Block Design ◽  
Irrigation Management ◽  
Fruit Production ◽  
Production Cycle ◽  
Fruit Length ◽  
Water Depths ◽  
Fruit Diameter

Irrigation management associated with other banana agricultural practices can provide an increased productivity and improved fruit quality. This study assessed the productive characteristics of banana genotypes under different irrigation water depths. The experiment was conducted at the experimental area of the School of Agronomy (EA/UFG) in Goiânia, GO, Brazil. The experimental design was a split-plot randomized block design, in which four irrigation water depths (30, 65, 100, and 135% of crop potential evapotranspiration, ETpc) composed the plots and three genotypes (‘FHIA 18’, ‘Grande-Naine’, and ‘Prata’) the subplots, with a spacing of 2.5 × 1.6 m. During the experimental period (first production cycle), the total precipitation was 1719.20 mm. Characterization of genotype development and yield was performed with the following assessments: bunch mass (kg), number of hands, stalk mass (kg), fruit diameter of the second hand (mm), fruit length of the second hand (cm), mass of the second hand (kg), number of fruits of the second hand, total number of fruits, and number of damaged fruits. The cultivar ‘FHIA 18’, differently from the others, showed a significant response to irrigation water depths on productivity. In the genotypes ‘Grande-Naine’ and ‘Prata’, an influence of irrigation was observed only on external and visual characteristics of fruit (diameter, length, and number of damaged fruits). In the genotype ‘Prata’, the irrigation water depth of 965 mm allowed fruit production with a larger diameter. Fruit length in the genotype ‘Prata’ increased linearly as water depth increased. The use of irrigation promoted a reduction in the number of damaged fruits in the genotypes ‘FHIA 18’ and ‘Grande-Naine’.

scholarly journals PEMBERIAN KOMPOS PADA TANAH BEKAS TAMBANG DENGAN INDIKATOR TANAMAN SAWI (Brassica chinensis L)

EUGENIA ◽  
2015 ◽  
Vol 21 (2) ◽  
Author(s):  
Theffie Lientje Karamoy ◽  
W. J.N. Kumolontang ◽  
J. Rondonuwu
Keyword(s):  
Plant Height ◽  
Soil Nutrients ◽  
Soil Chemistry ◽  
Design Method ◽  
Research Data ◽  
Harvest Time ◽  
Fresh Weight ◽  
Mining Soil ◽  
Randomized Design ◽  
Completely Randomized Design

ABSTRACT   This research aimed to determine the effects of compost applications on ex-mining lands by using chinese cabbage as indicator. The experiments were conducted at the Faculty of Agriculture greenhouse and the soil and compost analysis were done at the Soil Chemistry and Fertility Laboratory for a duration of two months. The research employed a Completely Randomized Design method with 5 treatments repeated 3 times to get 15 experimental units. The analysis on ex-mining soil revealed that it contained only trace amounts of soil nutrients N, P, and K. The laboratory analysis on the compost sample resulted in a C/N ratio of 11.87 which suggested that the compost was mature and ready to be used. The Analysis of Variance on research data showed that compost applications did not affect plant height between treatments at each weekly observation, and similarly did not affect leaf quantity and fresh weight at harvest time.  However, the research found that the compost applications tended to improve plant height, leaf quantity, and fresh weight of plants at harvest time.  The minimal effect of compost applications between treatments suggested that the plants did not utilized the nutrients supplied by the compost in their early stages of development.  Moreover, it was also suspected that the compost applications had not been sufficient in supplying the soil nutrients needed by the plants to ensure proper growth which ultimately affected the fresh weight of the plants at harvest time. Keywords: compost, ex-mining land

scholarly journals Gas exchanges and growth of cotton cultivars under water salinity

2019 ◽  
Vol 23 (6) ◽  
pp. 393-399
Author(s):  
André A. R. da Silva ◽  
Luana L. de S. A. Veloso ◽  
Ronaldo do Nascimento ◽  
Elka C. S. Nascimento ◽  
Carlos V. de C. Bezerra ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Sandy Loam ◽  
Saline Water ◽  
Water Salinity ◽  
Gas Exchanges ◽  
Randomized Design ◽  
Irrigation Water Salinity ◽  
Completely Randomized Design ◽  
Semi Arid Region ◽  
Response To Water

ABSTRACT Indication of salt-tolerant cotton cultivars can make the agricultural exploitation with saline water irrigation feasible in the Brazilian semi-arid region. Thus, this study aimed to evaluate the gas exchanges and growth of cotton cultivars irrigated with saline water. The study was conducted in pots adapted as drainage lysimeters under greenhouse conditions, using a sandy loam Entisols as substrate. Treatments were distributed in completely randomized design, in 5 x 2 factorial arrangement, relative 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). Increase in irrigation water salinity inhibits the vegetative growth and gas exchanges of the cotton cultivars BRS Safira and BRS 368 RF. Leaf area and instantaneous carboxylation efficiency are the most affected variables. Physiological and growth performance of the cultivar BRS Safira in response to water salinity was higher than that of BRS 368 RF.

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