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 Corn and soybean yields as affected by cover crops and herbicide timing under no-tillage system

2013 ◽  
Vol 31 (4) ◽  
pp. 939-946
Author(s):  
P. Oliveira ◽  
A.S. Nascente ◽  
J. Kluthcouski ◽  
T.A.P. Castro
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Cover Crops ◽  
Cover Crop ◽  
Block Design ◽  
No Tillage ◽  
Brachiaria Brizantha ◽  
Grain Yields ◽  
Randomized Block Design ◽  
Tillage System

To achieve better results in the no-tillage system (NTS), it is important to properly manage the cover crop prior to planting by using herbicides, usually glyphosate. The effect of glyphosate on plant coverage is slow, and plants take a few days to die completely. Thus, when applying the herbicide on the same day of planting soybean or corn, cover crops are still alive and standing, causing initial shading on seedlings of the crop and delaying its establishment. Therefore, this study aimed to evaluate the effect of distinct cover crops and their timing of desiccation prior to planting soybean or corn, on crop yield and yield components. Two experiments were installed, one for soybean and another for corn. Each experiment consisted in combining three cover crops (Brachiaria brizantha, common bean or millet) chemically desiccated at two timings before planting the crop (15 or 0 days before planting) under no-tillage system (NTS). Experiments were installed in a completely randomized block design with five replications. Brachiaria brizantha produced the highest amount of biomass; common bean and millet as cover crops allowed higher soybean grain yields; herbicide application under common bean, millet and Brachiaria brizantha 15 days before planting soybean allowed higher crop grain yields; desiccation timing of common bean did not affect corn grain yield; Brachiaria brizantha should be desiccated 15 days before planting corn to allow maximum grain yield; when millet was used as a cover crop, glyphosate application at planting of corn allowed the highest grain yield.

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 Response of irrigated wheat cultivars to different nitrogen rates and sources

2009 ◽  
Vol 33 (5) ◽  
pp. 1303-1310 ◽  
Author(s):  
Marcelo Carvalho Minhoto Teixeira Filho ◽  
Salatiér Buzetti ◽  
Marcelo Andreotti ◽  
Marco Eustáquio de Sá ◽  
Orivaldo Arf ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Nitrification Inhibitor ◽  
N Fertilization ◽  
Wheat Cultivars ◽  
N Source ◽  
Randomized Block Design ◽  
Significant Difference ◽  
N Rates ◽  
Nitrogen Rates

High wheat yields require good N fertilization management. The objective of this study was to evaluate the effects of different N applications at sowing using Entec (N source with nitrification inhibitor) and urea (traditional N source) at covering, on four wheat cultivars. The experiment was conducted in a randomized block design in a factorial scheme, with four replications, at the Experimental Station of the Faculdade de Engenharia de Ilha Solteira - UNESP, on a dystrophic, epi-eutrophic alic Red Latosol with loamy texture, formerly under savannah vegetation. Four N rates (0, 60, 120, and 180 kg ha-1) were tested, applied at sowing in the case of Entec and top-dressed 40 days after plant emergence in the case of urea, and the four wheat cultivars E 21, E 22, E 42, and IAC 370. The yield of the wheat cultivars E 21 and E 42 was highest. Plant height and lodging index of cultivar E 22 were greatest, with consequently lowest grain yield. There was no significant difference between Entec (applied at sowing) and urea (top-dressed) in terms of grain yield and yield components. Nevertheless, urea resulted in a higher N leaf content, and Entec in a larger number of undeveloped spikelets. High nitrogen rates influenced the hectoliter mass negatively, affecting wheat grain quality. Grain yield increased under N rates of up to 82 kg ha-1 N, through Entec applied at sowing or top-dressed urea.

scholarly journals Effect of different Planting Pattern of Wheat (Triticum aestivum) and Bean (Vicia faba) on Grain Yield, Dry Matter Production and Weed Biomass

2010 ◽  
Vol 2 (4) ◽  
pp. 111-115 ◽  
Author(s):  
Hamdollah ESKANDARI ◽  
Ahmad GHANBARI
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Cropping Systems ◽  
Block Design ◽  
Dry Weight ◽  
Crop Species ◽  
Planting Pattern ◽  
Sole Crop ◽  
Randomized Block Design ◽  
Bean Plants

An experiment was conducted in University of London, Kent, UK during the year 2003. The aim of experiment was to investigate the effects of planting pattern on performance of wheat and bean intercrops. A complete randomized block design with four replications was employed to compare the treatments. Treatments included wheat sole crop (W), Bean sole crop (B), within row intercropping (M1), row intercropping (M2) and mix cropping (M3). The density of intercropping was according to replacement design (one wheat replaced by three bean plants). The results showed that total dry matter achieved by intercrops was significantly higher than those achieved by either wheat or bean sole crop. Regarding to weed control, intercrops were more effective than sole crops, especially bean sole crop. Crops performance in terms dry weight, height and percentage of leaf, stem pod and ear was affected by cropping systems depending on crop species, where wheat showed more changes compared to bean . Grain yield, harvest index and thousand grain weights of wheat were decreased in intercropping while bean had reduction only in grain yield.

scholarly journals Molybdenum mixed with glyphosate and alone via foliar spray in no-tillage common bean grown on corn stover

Revista CERES ◽  
2014 ◽  
Vol 61 (1) ◽  
pp. 62-69
Author(s):  
Gessimar Nunes Camelo ◽  
Geraldo Antonio de Andrade Araújo ◽  
Renildes Lucio Ferreira Fontes ◽  
Luiz Antonio dos Santos Dias ◽  
José Eustáquio de Souza Carneiro ◽  
...  
Keyword(s):  
Common Bean ◽  
Corn Stover ◽  
Field Experiments ◽  
Block Design ◽  
Foliar Spray ◽  
Cumulative Effect ◽  
No Tillage ◽  
Randomized Block Design ◽  
Tillage System ◽  
Mo Content

The effect of molybdenum (Mo) on common bean grown in desiccated corn stover in a no-tillage system was evaluated under two application modes: Mo mixed with the desiccant glyphosate and Mo direct spray to the bean leaves. The treatments (four replicates) were assigned to a completely randomized block design in a split-plot arrangement with the application of Mo (0, 100, 200, 400 and 800 g ha-1) mixed with glyphosate in the main plots and Mo foliar spray (0 and 100 g ha-1) in the sub-plots. The field experiments were carried out in 2009 and 2010 in the municipality of Coimbra, Minas Gerais State, with the common bean cultivar Ouro Vermelho. Mo mixed with glyphosate had neither an effect on common bean yield nor on the Mo and N contents in leaves, however it increased the Mo and N contents in seeds. Application of Mo via foliar spray increased Mo content in leaves and Mo and N contents in seeds. The reapplication of molybdenum with glyphosate for desiccation in subsequent crops caused a cumulative effect of Mo content in bean seeds.

scholarly journals COBERTURA NITROGENADA EM DIFERENTES ESTÁDIOS FENOLÓGICOS DO FEIJOEIRO COMUM ALTERA PRODUTIVIDADE E QUALIDADE DE GRÃOS

Nativa ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 636
Author(s):  
Gabriel Pereira Nogueira ◽  
Mateus Sebastião Gonçalves Da Silva ◽  
Fábio Tiraboschi Leal ◽  
Rogério Farinelli ◽  
Fábio Luiz Checchio Mingotte ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Grain Yield ◽  
Common Bean ◽  
Block Design ◽  
Phenological Stages ◽  
Agronomic Efficiency ◽  
Randomized Block Design ◽  
Soil Preparation ◽  
Grain Yield And Quality ◽  
Qualitative Performance

A necessidade de conhecer a marcha de absorção do nitrogênio (N) pelo feijoeiro é importante para compreender os desempenhos produtivo e qualitativo dessa cultura.  O objetivo deste estudo foi avaliar a influência da cobertura nitrogenada em função de diferentes estádios fenológicos no desempenho morfoagronômico e produtivo e nas características tecnológicas dos grãos do feijoeiro em sistema de plantio convencional. Utilizou-se o delineamento de blocos casualizados, com quatro repetições. Os tratamentos foram constituídos por doze combinações de fornecimento de N (FN) em cobertura (dose total = 90 kg ha-1 de N) aplicadas nos estádios fenológicos V3, V4 e R5 (V3+V4+R5) do feijoeiro de inverno irrigado: 00+00+00; 30+30+30; 30+60+00; 30+00+60; 60+30+00; 00+60+30; 45+45+00; 00+45+45; 45+00+45; 90+00+00; 00+90+00; e 00+00+90. A fonte de N utilizada foi ureia convencional. Os FN 30+00+60, 00+45+45 e 45+00+45 incrementam a produtividade de grãos e a eficiência agronômica em relação à ausência de N e à aplicação de dose única no estádio fenológico V4. do feijoeiro comum. As maiores produtividades de proteína bruta e o menor tempo para cozimento foram proporcionadas pelos FN 00+45+45, 45+00+45, 90+00+00, 00+90+00 e 00+00+90.Palavras-chave: Phaseolus vulgaris; parcelamento do N; eficiência agronômica; tecnologia dos grãos. NITROGEN TOPDRESSING AT DIFFERENT PHENOLOGICAL STAGES ON COMMON BEAN CHANGES GRAIN YIELD AND QUALITY ABSTRACT: The need to know the nitrogen uptake (N) by common bean is important to understand the productive and qualitative performance of this crop. The objective of this study was to evaluate the influence of nitrogen topdressing as a function of different phenological stages on the morphometric and productive performance, and on the technological characteristics of the bean grains grown under conventional soil preparation. A randomized block design with four replications was used. The treatments were constituted by twelve topdressing N supply combinations (NS) (total dose = 90 kg ha-1 N) applied in the phenological stages V3, V4 and R5 (V3+V4+R5) of irrigated winter bean: 00+00+00; 30+30 +30; 30+60+00; 30+00+60; 60 + 30 + 00; 00+60+30; 45+45+00; 00+45+45; 45+00+45; 90+00+00; 00+90+00; and 00+00+90. The source of N used was conventional urea. NS 30 + 00 + 60, 00 + 45 + 45 and 45 + 00 + 45 increase grain yield and agronomic efficiency in relation to the absence of N and single dose application at V4 phenological stage of common bean. The highest crude protein yields and the shortest cooking time were provided by FN 00+45+45, 45+00+45, 90+00+00, 00+90+00 and 00+00+90.Keywords: Phaseolus vulgaris; N splitting; agronomic efficiency; grains technology. 

scholarly journals Common bean seed vigor affecting crop grain yield

2016 ◽  
Vol 38 (4) ◽  
pp. 365-370 ◽  
Author(s):  
Vitor Henrique Vaz Mondo ◽  
Adriano Stephan Nascente ◽  
Manoel Oliveira Cardoso Neto
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Block Design ◽  
Seedling Emergence ◽  
Research Work ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Bean Seed ◽  
Crop Establishment ◽  
Randomized Block Design

Abstract: Among the factors that affect seedling emergence and crop establishment are seed germination and vigor, which has an important influence on the establishment of the initial plant population and development, and may affect crop yield. Based on this background the objective of this research work was to evaluate the effects of seed vigor of common bean seed lots and its effects on crop grain yield. The treatments consisted of six seed lots of common bean, which were composed by different combinations of high and low vigor seeds. Seed lots were assessed by germination and vigor tests (first count of germination, electrical conductivity and accelerated aging). A field experiment was conducted in a randomized block design, with plots of six lines of five meters and were evaluated for grain yield at harvest. It was concluded that seed vigor affects common bean grain yield; the use of low vigor seeds results in grain yield reductions of up to 20%.

scholarly journals ADUBAÇÃO NITROGENADA E USO DE REGULADOR DE CRESCIMENTO NA PRODUÇÃO DE TRIGO DE SEQUEIRO

2018 ◽  
Vol 14 (4) ◽  
pp. 01-09
Author(s):  
Claudio Hideo Martins da Costa ◽  
Jordana Rafaela Guimarães Vilela ◽  
Ana Laura Silva de Sousa ◽  
Rogério Borges de Oliveira Paz ◽  
Bárbara Fátima Silva Moura
Keyword(s):  
Nitrogen Fertilization ◽  
Management Practice ◽  
Cropping Systems ◽  
Flag Leaf ◽  
Block Design ◽  
Climatic Conditions ◽  
Randomized Block Design ◽  
Increase In Productivity ◽  
Nitrogen Rates ◽  
Ear Number

Nitrogen fertilization is an important management practice in grasses and quite complex, due to the different factors that influence such as climatic conditions, cropping systems, rates and available sources. The objective of this work was to evaluate the different rates of side dressing nitrogen and the effect of the trinexapac-ethyl on wheat (Triticum aestivumL.).The experiment was a randomized block design in a 5x2 factorial scheme, with 4 replicates. The treatments were composed of five nitrogen rates applied in side dressing(0, 20, 40, 80 and 160 kg ha-1of N) and two rates ofetil-trinexapac (0 e 100 g ha-1do active ingredient)in the wheat crop.The following variables were evaluated: shoot dry matter, plant height, flag leaf height, ear insertion height, distance of source and drain, ear length, number of ears per square meter, number of spikelets per ear, fertility of spikelets, number of grains per ear, number of grains per spikelet, mass of one thousand grains, grain yield), hectoliter weight, and grain protein. The growth regulator changes the morphological components of wheat, but does not alter the productive components and yield of grains, not justifying their use under the conditions under which the study took place. Nitrogen fertilization does not alter the morphological components of wheat plants, but increases the number of ears per m2up to a rate of 52 kg ha-1of N, reflecting the increase in productivity up to the rate of 59 kg ha-1.

scholarly journals Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil

Revista CERES ◽  
2014 ◽  
Vol 61 (3) ◽  
pp. 424-433 ◽  
Author(s):  
Maria do Carmo Lana ◽  
Leandro Rampim ◽  
Tatiane Ohland ◽  
Fernando Fávero
Keyword(s):  
Grain Yield ◽  
Plant Density ◽  
Block Design ◽  
Leaf Nitrogen ◽  
Leaf Nitrogen Content ◽  
Randomized Block Design ◽  
Plant Densities ◽  
Tillage System ◽  
Leaf N Content ◽  
Nitrogen Rates

The objective of this study was to evaluate yield components, leaf nitrogen content and grain yield in corn as affected by row spacing, plant density and nitrogen topdressing. The experiment was conducted with the single-cross hybrid AG 8021, in the municipality of Toledo-PR, in an Oxisoil under no-tillage system, in the crop year 2005/ 2006. The experiment was arranged in a randomized block design and treatments in split-split-plots, with four replications. The two row spacings (0.45 and 0.90 m) were allocated in the main plots, the two plant densities (60,000 and 80,000 plants ha-1) were allocated in the subplots and the three nitrogen rates (80, 100, 120 and 140 kg ha-1 N) were allocated in the sub-subplots. Topdress nitrogen was applied using urea as N source. The rise of the plant population from 60,000 to 80,000 plants ha-1 and the application of topdress nitrogen resulted in increased production components. The application of topdress fertilization provided increase in leaf N content and grain yield for the spacings 0.45 m and 0.90 m. Yield was higher in the spacing 0.45 m than 0.90 m. Yield was higher with 60,000 plants than with 80,000 plants at 0.90 m, while at 0.45 m there was no difference in relation to the plant density.

scholarly journals Effect of phosphorus applied as monoammonium phosphate-coated polymers in corn culture under no-tillage system

2018 ◽  
Vol 39 (1) ◽  
pp. 99
Author(s):  
Ana Carolina Marostica Lino ◽  
Salatiér Buzetti ◽  
Marcelo Carvalho Minhoto Teixeira Filho ◽  
Fernando Shintate Galindo ◽  
Paulo Ricardo Maestrelo ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Quadratic Function ◽  
Leaf Tissue ◽  
No Tillage ◽  
Monoammonium Phosphate ◽  
Randomized Block Design ◽  
Tillage System ◽  
Essential Nutrient ◽  
Cropping Seasons

The use of phosphate fertilizers as coated polymers reduces phosphorus losses that occur by adsorption of P to soil particles, thereby providing this essential nutrient for a longer period. The objective of this study was to evaluate the effect of phosphorus doses applied as conventional monoammonium phosphate or as coated polymers on corn grown in a clayey Oxisol, in the Cerrado region. The experiment was conducted in Selvíria - MS, located at 22°22? S and 51°22? W. The experiment was laid out in a randomized block design arranged as a 4 × 2 factorial, with four doses of P2O5 (0, 50, 100, and 150 kg ha-1) and two sources of phosphorus (monoammonium phosphate (MAP) and monoammonium phosphate coated polymers). The experiment was conducted under no-tillage system during the cropping seasons in 2008/09 and 2009/10. The MAP and MAP-coated sources did not differ in most of the yield components in either of the two seasons. We found a quadratic function adjustment for P doses up to 117 and 98 kg ha-1 of P2O5 for P concentration in leaf tissue and grain yield in the 2008/2009 crop, respectively. We also obtained a quadratic function adjustment for P rates for grain yield and number of plants, up to 118 and 113 kg ha-1 of P2O5, respectively, in the 2009/2010 harvest.

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