scholarly journals NITROGEN AND ORGANIC FERTILIZATION ON GRAPEVINE PRODUCTIVITY IN THE BRAZILIAN SEMIARID REGION

2019 ◽  
Vol 32 (1) ◽  
pp. 121-130
Author(s):  
Franciezer Vicente de Lima ◽  
Vander Mendonça ◽  
Francisco Sidene Oliveira Silva ◽  
Francisco Mickael de Medeiros Câmara ◽  
Toni Halan da Silva Irineu
Keyword(s):  
Block Design ◽  
Organic Fertilizer ◽  
Semiarid Region ◽  
Limiting Factor ◽  
Organic Fertilization ◽  
Randomized Block Design ◽  
Semi Arid Region ◽  
N Rates ◽  
Nitrogen Rates ◽  
Fertilizer Rates

ABSTRACT Nitrogen fertilization is a limiting factor for grapevine production; its excess or deficiency can cause changes in fruit quantity and quality. Thus, the objective of this work was to evaluate productive parameters of grapevines of the Isabel-Precoce cultivar subjected to nitrogen and organic fertilization in the western semiarid region of the state of Rio Grande do Norte (RN), Brazil. The experiment was conducted at the Experimental Farm of the Federal Rural University of the Semi-Arid Region, in Mossoró, RN, Brazil, during two production cycles. The soil of the area used was classified as dystrophic Red Argissolo (Udult) of sandy texture. The experiment was conducted in a randomized block design with six replications, using a 5×2 factorial arrangement, with 5 nitrogen fertilizer rates (0, 30, 60, 90, and 120 kg ha-1) and two organic fertilizer rates (0, and 20 m3 ha-1 of bovine manure). The production components number of bunches per plant, grape production per plant, grape yield, weight, length and width of bunches, number of berries per bunch, and ten-berry weight were evaluated. The nitrogen rates and organic fertilizer rates used were significant (p=0.05) for all evaluated components. The N rate of 60 kg ha-1 combined with the organic fertilization generated the best results for the analyzed variables. N rates from 60 to 120 kg ha-1, applied singly or combined with organic fertilizer, hindered the production components of the Isabel-Precoce grapevines.

scholarly journals Jatropha press cake as organic fertilizer in lettuce cultivation

2016 ◽  
Vol 20 (12) ◽  
pp. 1089-1094
Author(s):  
José R. Mantovani ◽  
Jéssica da S. Bernardes ◽  
Paulo R. C. Landgraf
Keyword(s):  
Soil Acidity ◽  
Press Cake ◽  
Block Design ◽  
Organic Fertilizer ◽  
Phosphate Fertilizer ◽  
Soil Samples ◽  
Biodiesel Production ◽  
Organic Fertilization ◽  
Lettuce Seedling ◽  
Randomized Block Design

ABSTRACT In biodiesel production, vegetable press cake is obtained as waste, and a suitable destination for jatropha press cake would be the use in agriculture as organic fertilizer. This study aimed to evaluate the effect of jatropha press cake on soil fertility attributes and on lettuce production and accumulation of nutrients in the shoots. The experiment was conducted in pots in a greenhouse, in a randomized block design with eight treatments and five replicates. The treatments consisted of doses of jatropha press cake equivalent to 0, 0.5, 1.0, 2.0, 4.0, 8.0, 16.0 and 32.0 t ha-1. Portions of 5.5 dm3 of soil received limestone, phosphate fertilizer and the doses of jatropha press cake, and remained incubated for 30 days. After incubation, soil samples were collected, each pot received one lettuce seedling and the experiment was carried out for 45 days. The organic fertilization with jatropha press cake increased the contents of nutrients in the soil, especially K+, but caused increment in soil acidity and electrical conductivity. The use of jatropha press cake as organic fertilizer decreased lettuce production and accumulation of nutrients in the shoots.

scholarly journals Attributes of the soil with cactus pear under organic fertilization, different spacings and sampling times

2020 ◽  
Vol 24 (7) ◽  
pp. 444-450
Author(s):  
Milton C. Padilha Junior ◽  
Sérgio L. R. Donato ◽  
Paulo E. R. Donato ◽  
João A. da Silva
Keyword(s):  
Organic Matter ◽  
Block Design ◽  
Organic Fertilizer ◽  
Sampling Time ◽  
Organic Fertilization ◽  
Cactus Pear ◽  
Randomized Block Design ◽  
Chemical Attributes ◽  
Sampling Times ◽  
Different Doses

ABSTRACT The objective of this study was to evaluate the chemical attributes of the soil cultivated with ‘Gigante’ cactus pear under different doses of organic fertilizer, planting spacings and sampling times. Four doses of organic fertilizer with bovine manure (0, 30, 60 and 90 Mg ha-1 year-1), three spacings (1.0 x 0.5, 2.0 x 0.25 and 3.0 x 1.0 x 0.25 m) and three sampling times (0, 390 and 600 days after planting) corresponding to the periods prior to planting, growth and harvest of the first cycle, were evaluated in a randomized block design in a 4 x 3 x 3 factorial scheme, with three repetitions. The pH in water, macronutrients (P, K, Ca, Mg), micronutrients (B, Cu, Fe, Mn, Zn), variables of the soil sorption complex (H + Al, SB, CEC, T, V) and soil organic matter (SOM) were determined. Organic fertilization increased the values of SOM, P, K, Ca, Mg, SB, CEC, T and V and reduced H + Al in soils cultivated with ‘Gigante’ cactus pear at different times. The doses of manure increased pH and Mn, regardless of sampling time and spacing. The spacings did not influence the chemical attributes of the soil.

scholarly journals Kajian Paket Dosis Semi Organik terhadap Sifat Tanah dan Hasil Tanaman Padi (Oryza sativa L)

2020 ◽  
Vol 10 (2) ◽  
pp. 100
Author(s):  
I WAYAN NARKA ◽  
I NYOMAN DIBIA ◽  
I WAYAN DANA ATMAJA
Keyword(s):  
Oryza Sativa ◽  
Soil Properties ◽  
Oryza Sativa L ◽  
Block Design ◽  
Organic Fertilizer ◽  
Organic Content ◽  
Organic Fertilization ◽  
Liquid Fertilizer ◽  
Randomized Block Design ◽  
Organic Compost

The study of packages of semi-organic fertilization on soil properties, and yield of rice (Oryza sativa L). The aim of this study was to know the effect of semi organic fertilization doses on soil properties and yield of rice. The Randomized block design (RBD), with 3 replications and 9 treatments was used in this study. P0 (without fertilizer), P1 (25 tons of organic fertilizer ha-1), P2 (300 kg of Urea ha-1, 150 kg SP36 ha-1 and 75 kg KCl ha-1), P3 (biourin liquid fertilizer) P4 (½ P1 + ½ P2), P5 (½ P1 + ½ P3, P6 (½ P2 + ½ P3), P7 (2/3P1 + 1/ 3 P2) and P8 (2/3P3 + 1/3P2). The results showed that the application of semi-organic fertilizer on soil properties such as soil salinity, C-organic content, P-available and Nitrogen content of soil significantly affected by the treatment, while potasium_available and soil pH is not significantly affected by the treatment.  Yield of rice had a very significant effected by treatment. The semi-organic fertilizer P4 (combination of 50 % anorganic + 50 % organic compost) and P6 (combination of 50 % inorganic + 50 % biourine) can produce oven dry grain 33.35 g per bushel and 32.63 g per bushel respectively or increased 57.91 % and 54.50 % of controls.

scholarly journals Dry matter production and chemical composition of Massai grass submitted to nitrogen rates and cutting heights

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2487
Author(s):  
Giselle Abadia Campos Pereira ◽  
Leni Rodrigues Lima ◽  
Joelson Antônio Silva ◽  
Rosemay Lais Galati ◽  
Joanis Tilemahos Zervoudakis ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Block Design ◽  
N Fertilization ◽  
Linear Increase ◽  
Dry Matter Production ◽  
Randomized Block Design ◽  
Matter Production ◽  
N Rates ◽  
Nitrogen Rates

The study was carried out in a greenhouse with a 4X4 factorial arrangement randomized block design in order to evaluate the effects of nitrogen rates (0, 50, 100 and 150 mg dm-3) associated with cutting heights (10, 15, 20 and 25 cm) on dry matter production and the chemical composition of Massai grass. The seeding was done in pots with 11 kg of soil. 10 plants were kept per pot, and there were two cuts every 35 days. Nitrogen fertilization was split between the two cuts, where the first N application occurred after the uniformity cut and the second after the first cut. In each cut the plants were separated and weighed for botanical component evaluation: leaf blade and stem + sheath. After this, the samples were homogenized and analysed for dry matter (DM), crude protein (CP) and neutral detergent fibre (NDF) content. In the first cut, the N fertilization caused a linear increase in DM production of 0.058 g pot-1 per each 1 mg dm-3 of N applied, as well as causing an increase of 0.549% in CP percentage, a 0.0124 pot-1 g increase in CP production and a reduction of 0.055% in NDF. In the second cut, N rates promoted a quadratic effect on DM production. A maximum DM production of 16.48 g pot-1 with 107.27 mg dm-3 of N was observed while CP production content was increased by 0.0092 g pot-1 for each 1 mg dm-3 N applied. In terms of linear responses to DM and PB, as well as the use efficiency calculated for Massai grass, recommended N doses range between 50 and 100 g dm-3.

scholarly journals Rates of nitrogen and growth retardant trinexapac-ethyl on wheat

2011 ◽  
Vol 41 (12) ◽  
pp. 2045-2052 ◽  
Author(s):  
Marcelo Curitiba Espindula ◽  
Valterley Soares Rocha ◽  
Leandro Torres de Souza ◽  
Moacil Alves de Souza ◽  
Marcela Campanharo ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Dry Mass ◽  
Growth Retardant ◽  
Randomized Block Design ◽  
N Rates ◽  
Nitrogen Rates

The objective in this study was to evaluate the effects of nitrogen rates in association with rates of the growth retardant trinexapac-ethyl on wheat. The experiment was conducted in Viçosa, MG and arranged in a 5×4 factorial, randomized block design, with four repetitions. A combination of five nitrogen rates (30, 60, 90, 120 and 150kg ha-1) with four rates of trinexapac-ethyl (0, 62.5, 125 and 187.5g ha-1) were tested. Trinexapac-ethyl promotes reduction of soot dry mass and grain yield at the lowest N rates, but at the highest N rates there is increase in these characteristics. The combination between N and trinexapac-ethyl rates that promotes higher shoot dry mass is 150kg ha-1 and 187g ha-1 but that promotes higher grain yield is 100kg ha-1 and 120g ha-1, respectively.

scholarly journals Yield of the Okra Submitted to Nitrogen Rates and Wastewater in Northeast Brazilian Semiarid Region

2018 ◽  
Vol 10 (4) ◽  
pp. 409 ◽  
Author(s):  
Aldair De Souza Medeiros ◽  
Manoel Moisés Ferreira de Queiroz ◽  
Renato A. de Araújo Neto ◽  
Patrícia Da Silva Costa ◽  
Amanda Costa Campos ◽  
...  
Keyword(s):  
Block Design ◽  
Domestic Wastewater ◽  
Growth And Yield ◽  
Intermittent Flow ◽  
Semiarid Region ◽  
Santa Cruz ◽  
Randomized Block Design ◽  
Brazilian Semiarid ◽  
Nitrogen Rates ◽  
Available Volume

Water is an indispensable resource for the maintenance of life; however, the available volume for consumption has decreased over a period of life, as a result of which, the availability of water that is inferior in quality has increased. In this context, we aimed to evaluate the growth and yield of okra (Santa Cruz cultivar) under different nitrogen rates and irrigation facilities using post-treated domestic wastewater through sand filter with intermittent flow in a Brazilian semiarid region. The experiment was performed in the Pombal region of the Paraíba state, Brazil using a randomized block design with six nitrogen Rates (N1 = 0, N2 = 40, N3 = 80, N4 = 120, N5 = 160, and N6 = 200 kg ha-1) and irrigation by using wastewater. The water was added to the treatment with 100% (160 kg ha-1) using nitrogen fertilization recommendation and irrigation water supply. The effects of treatments on the growth and production variables of okra plants were evaluated.

scholarly journals GOAT MANURE FERTILIZATION AND IRRIGATION ON PRODUCTION COMPONENTS OF SUNFLOWER

2019 ◽  
Vol 32 (1) ◽  
pp. 211-221 ◽  
Author(s):  
Francisca Robevania Medeiros Borges ◽  
Francisco Marcus Lima Bezerra ◽  
Albanise Barbosa Marinho ◽  
Elísia Gomes Ramos ◽  
Jilson de Nazaré José Adriano
Keyword(s):  
Irrigation Water ◽  
Oil Content ◽  
Block Design ◽  
Organic Fertilizer ◽  
Class A ◽  
Randomized Block Design ◽  
Crop Cycle ◽  
Goat Manure ◽  
Fertilizer Rates ◽  
Water Depths

ABSTRACT Sunflower can be an economically viable crop in the Northeast region of Brazil depending on the use of appropriate irrigation and fertilization managements. The objective of this work was to evaluate production components of sunflower plants (Helianthus annuus L.) of the BRS-324 cultivar subjected to different organic fertilizer rates (goat manure) and irrigation water depths in two crop cycles (November 2014 to February 2015; and August to November 2015). The experiment was conducted in a randomized block design with a split-split-plot arrangement, consisting of five organic fertilizer rates (OFR) (0, 300, 600, 900, and 1.200 mL plant-1 week-1) and five irrigation water depths (IWD) (33; 66; 100; 133, and 166% of the class A tank evaporation), with three blocks. The highest achene yield (1,220.78 kg ha-1) in the first cycle was found using OFR of 1,200 mL plant-1 week-1 and IWD of 134.9% (524.9 mm); and the highest yield (882.07 kg ha-1) in the second crop cycle was found using the highest OFR combined with IWD of 166% (843.0 mm). The use of goat manure as organic fertilizer had no effect on the sunflower oil content; however, this variable was affected by the irrigation water depths used. Protein content was higher in the second crop cycle (14%) when using IWD of 100% and OFR of 536 mL plant-1 week-1.

scholarly journals Crop systems and topdressing nitrogen on grain yield and technological attributes of common bean under no-tillage

2019 ◽  
Vol 49 ◽  
Author(s):  
Fábio Luíz Checchio Mingotte ◽  
Leandro Borges Lemos ◽  
Celso Antônio Jardim ◽  
Domingos Fornasieri Filho
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Cropping Systems ◽  
Block Design ◽  
No Tillage ◽  
Brazilian Savannah ◽  
Sole Crop ◽  
Randomized Block Design ◽  
N Rates ◽  
Nitrogen Rates

ABSTRACT Common bean has been the main crop in succession to corn and Brachiaria in no-tillage systems, in the Brazilian Savannah. This study aimed to evaluate the influence of crop systems and topdressing nitrogen on grain yield and technological attributes of common bean under no-tillage. A randomized block design, in a split-plot arrangement, with four replications, was used. The plots consisted of three crop systems (corn in sole crop, corn + Urochloa ruziziensis intercropped and U. ruziziensis in sole crop) and the subplots by five nitrogen rates (0 kg ha-1, 40 kg ha-1, 80 kg ha-1, 120 kg ha-1 and 160 kg ha-1). There is interaction between predecessor cropping systems and N rates for grain yield, milling efficiency specifically on sieve 13, as well as for the grain hydration ratio. Increasing topdressing N rates applied on common bean in succession to corn in sole crop promote increases in grain yield, resulting in a milling efficiency in the oblong-hole sieve 14 higher than in the other crop systems evaluated. The increase of the topdressing N rates applied on common bean in succession to corn and U. ruziziensis in sole crops or intercropped does not influence the time for maximum hydration of the grains, but reduces their cooking time, mainly in succession to U. ruziziensis and corn in sole crops.

scholarly journals Photochemical efficiency in cladodes of ‘Gigante’ cactus pear cultivated under different spacings and organic fertilization

2018 ◽  
Vol 22 (5) ◽  
pp. 338-343
Author(s):  
Cleiton F. B. Brito ◽  
Sérgio L. R. Donato ◽  
Alessandro de M. Arantes ◽  
Paulo E. R. Donato ◽  
João A. da Silva
Keyword(s):  
Arid Region ◽  
Block Design ◽  
Photochemical Efficiency ◽  
Organic Fertilization ◽  
Cactus Pear ◽  
The Third ◽  
Randomized Block Design ◽  
Semi Arid Region ◽  
Semi Arid ◽  
Dry And Rainy Seasons

ABSTRACT The objective of this study was to determine the photochemical efficiency of ‘Gigante’ cactus pear cultivated under different spacings and bovine manure doses in the semi-arid region. The experiment was conducted in a randomized block design in a 4 x 3 x 7 factorial scheme, with three replicates. The first factor consisted of four doses of organic fertilization (0, 30, 60 and 90 Mg ha-1 year-1 of bovine manure), the second one, of three spacings (1.0 x 0.5, 2.0 x 0.25 and 3.0 x 1.0 x 0.25 m) and the third one of seven reading times (6, 8, 10, 12, 14, 16 and 18 h). Chlorophyll a fluorescence readings were taken in cactus pear cladodes in the dry and rainy seasons using a pulse-modulated fluorometer. Cladodes of ‘Gigante’ cactus pear cultivated under different spacings and bovine manure doses undergo changes in photosystem II during the dry season under the physiographic conditions of the semi-arid region in Bahia. During the rainy season in the semi-arid region, the photosynthetic yield in cactus pear cladodes is considered ideal.

scholarly journals Yield performance of taro (Colocasia esculenta L.) cultivated with topdressing nitrogen rates at the Zona da Mata region of Minas Gerais

Revista CERES ◽  
2016 ◽  
Vol 63 (6) ◽  
pp. 887-892
Author(s):  
Sanzio Mollica Vidigal ◽  
Iza Paula de Carvalho Lopes ◽  
Mário Puiatti ◽  
Maria Aparecida Nogueira Sediyama ◽  
Marcelo Resende de Freitas Ribeiro
Keyword(s):  
Nitrogen Fertilization ◽  
Block Design ◽  
Maximum Yield ◽  
Time Of Application ◽  
Randomized Block Design ◽  
The Subject ◽  
The Difference ◽  
Almost All ◽  
N Rates ◽  
Nitrogen Rates

ABSTRACT Response of taro to amount of nitrogen applied and time of application has been the subject of discussion. The objective of this study was to evaluate the effect of nitrogen topdressing on taro yield. Two experiments were conducted in Oratórios - MG from September 2010 to July 2011 (Year 1) and from September 2011 to July 2012 (Year 2). Both experiments were arranged in a randomized block design, with four replications. The treatments consisted of five N rates (0; 40; 60; 80 and 160 kg ha-1) applied as topdressing at urea form. The corms of Japanese clone (BGH 5925) were planted in the 0.90 x 0.30 m spacing. In the two experimental years, yield increased in almost all corm classes with the increase in N rates. The estimated maximum yields of marketable corms were 22.23 Mg ha-1 in Year 1 and 9.81 Mg ha-1 in Year 2, with 109 and 118 kg ha-1 of N, respectively. The total number of corms per plant was similar in both years (16.45 corms/plant in Year 1 and 17.76 corms/plant in Year 2). Unmarketable corms represented 35.32 and 46.51% of the total per plant, in Year 1 and Year 2, respectively, indicating less corm growth in Year 2. The curve of taro response to topdressing N rates was similar in the two years and, the estimates were influenced by the difference in rainfall between the years. With the management of nitrogen fertilization, the maximum yield of marketable taro corms was achieved with N rates varying from 109 to 118 kg ha-1.

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