scholarly journals Nitrogen fertilizer split-application for corn in no-till succession to black oats

2002 ◽  
Vol 59 (3) ◽  
pp. 549-554 ◽  
Author(s):  
Carlos Alberto Ceretta ◽  
Claudir José Basso ◽  
Jeferson Diekow ◽  
Celso Aita ◽  
Paulo Sérgio Pavinato ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Rio Grande ◽  
No Tillage ◽  
Rio Grande Do Sul ◽  
Split Application ◽  
N Application ◽  
No Till ◽  
Average Rainfall ◽  
Commercial Farms ◽  
Cropping Seasons

The studies of fertilization splitting are necessary specially for the grass succession black oat-corn where N immobilization is very common. Four experiments were carried out in commercial farms under no-tillage, in four counties - Itaara, Santo Ângelo, Júlio de Castilhos and Tupanciretã, all of Rio Grande do Sul, Brazil, with the objective of evaluating the splitting of N application in a corn/black oat crop rotation, during the 97/98 and 98/99 cropping seasons. The N was applied at three times -- pre-planted, starter and sidedressed. The pre-planted applied N for corn, corresponding to total or partial rates that would be sidedressed presented similar results in relation to the sidedress application, however, years of above average rainfall presented N deficiency for corn, reducing yield, which indicates that N application as starter or sidedress is recommended.

scholarly journals ONION GENOTYPE SKILLS IN DIFFERENT PLANTING SYSTEMS

2019 ◽  
Vol 17 (2) ◽  
pp. 35
Author(s):  
Gabriel Mascarenhas Maciel ◽  
Guilherme Repeza Marquez ◽  
Ariel Santivañez Aguilar ◽  
Igor Forigo Beloti ◽  
Igor Matheus Alves ◽  
...  
Keyword(s):  
Rio Grande ◽  
The State ◽  
No Tillage ◽  
Seedling Production ◽  
Rio Grande Do Sul ◽  
No Till ◽  
Northwestern Region ◽  
Agronomic Potential ◽  
Planting System

Currently, planting onion through seedling production is predominant in the state of Rio Grande do Sul. Thus, the present work aimed to evaluate the agronomic potential of new onion genotypes as a function of the planting system for this region. Eleven genotypes were evaluated, as follows: “commercial genotypes” Bola Precoce, Mulata, Sprint, Suprema and “pre-commercial genotypes” TE 201, TE 209, TE 216, TE 230, TE 242, TE 316 and TE 329, submitted to four planting systems: seedling production, seedling production with leaf pruning before transplanting, no-tillage manually planted at the definitive site and seedling production in trays. Treatments were arranged in an 11 x 4 factorial scheme (eleven genotypes and four planting systems). Although little practiced, the no-till system for onion cultivation for the northwestern region of Rio Grande do Sul can potentially be explored. Genotypes that best adapted to this system were: Bola Precoce, Suprema, Sprint, Mulata and TE 201. Comparatively, “commercial” genotypes showed an increase of 10.81 t ha-1 in relation to “pre-commercial” genotypes in the no-till system, proving the efficiency of this system.

scholarly journals Distribution of eggs, larvae and adults of Sternechus subsignatus Boheman on soybean plants in no-till system

1998 ◽  
Vol 27 (4) ◽  
pp. 513-518 ◽  
Author(s):  
Mauro T. B. Silva ◽  
Nelson Neto ◽  
Clara B. Hoffmann-Campo
Keyword(s):  
Glycine Max ◽  
Rio Grande ◽  
Sampling Time ◽  
Rio Grande Do Sul ◽  
No Till ◽  
Glycine Max L ◽  
Soybean Plants ◽  
Lateral Branches ◽  
Upper Third ◽  
Eggs And Larvae

Soybean [(Glycine max (L.) Merrill] commercial fields, maintained under a no-till system, were sampled during the crop seasons 1990/91 and 1996/97, in Cruz Alta and Júlio de Castilhos, Rio Grande do Sul State, to determine the distribution of eggs, larvae and adults of Sternechus subsignatus Boheman (Coleoptera : Curculionidae). Soybean plants and soil were examined at different time schedules. Eggs and larvae were recorded in main stems, lateral branches and leaf petioles, divided into the upper third, medium and lower third of soybean plants. Eggs (87%), and larvae (79%) were mainly observed in the main stem and in the medium plant sections (87% and 78%, respectively). Larval movement was not observed because larvae remained inside the galls, in the same area where the eggs were laid. Adults were located in different places depending on the sampling time. At night, adults were observed to move to the upper third of the plant and, during the day, down to the lower third of the plant and to the soil. The insects are normally concealed during their pre- and post- embryonic stage throughout most of the day.

scholarly journals Profitability of no-till grain production systems

2018 ◽  
Vol 39 (1) ◽  
pp. 77 ◽  
Author(s):  
Rafael Fuentes-Llanillo ◽  
Tiago Santos Telles ◽  
Bruno Volsi ◽  
Dimas Soares Júnior ◽  
Sérgio Luiz Carneiro ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Agricultural Production ◽  
Production Systems ◽  
Conservation Agriculture ◽  
Small Scale ◽  
No Tillage ◽  
Grain Production ◽  
Family Farms ◽  
No Till ◽  
Gross Margins

In general, the technical and agronomic benefits of no-till farming are widely known and well documented in the literature. However, studies focusing on the economics of no-tillage are scarce. In this context, the objective of this study is to determine whether no-till grain production systems that follow the principles of conservation agriculture are economically profitable by analyzing gross margins per hectare per year over six harvests for the agricultural years 1998/1999 to 2003/2004. In addition, a possible link between profitability and different no-till methods in terms of degree of soil turnover, crop rotation, and whether machinery used in agricultural operations is owned or rented is investigated. For this purpose, the multi-case analytical method was applied to thirteen grain producing family farms in Northern Paraná state, Brazil. Based on the results, two ranges of agricultural production variable costs and gross margins were identified. Higher gross margins were associated with longer use of the no-till system, ownership of machinery and equipment, specialization in grains, rotation of the commercial crops used, and higher variable costs. Lower gross margins were associated with outsourcing of sowing, small-scale cropping, and lack of crop rotation. It is concluded that family mechanized no-till systems of grain production in north Paraná are profitable.

scholarly journals Physical properties of an Alfisol and no-till soybean yield

2012 ◽  
Vol 36 (1) ◽  
pp. 253-260 ◽  
Author(s):  
João Tavares Filho ◽  
Maria de Fátima Guimarães ◽  
Pierre Curmi ◽  
Daniel Tessier
Keyword(s):  
Organic Matter ◽  
Bulk Density ◽  
Crop Rotation ◽  
Organic Matter Content ◽  
Soil Bulk Density ◽  
Matter Content ◽  
No Tillage ◽  
Soybean Yield ◽  
Annual Crops ◽  
No Till

It is known that any kind of soil management causes changes in the soil physical characteristics and can affect agricultural yield. The purpose of this study was to evaluate soil properties of an Alfisol and soybean yield under different management systems for no-tillage annual crops, no-tillage with chiseling and no-tillage crop rotation. The 11-year experiment was initiated in the 1998/99 growing season, on 100 x 30 m plots (11 % slope). Soil samples (5 per management system) were systematically collected (0-25 cm layer) in the summer growing season, to quantify soil organic matter, bulk density, macroporosity and flocculation, as well as soybean yield. The highest values for soil bulk density and organic matter content and the lowest for macroporosity were observed in the no-till system alone, whereas in the no-till system with quarterly chiseling the values for organic matter content were lowest, and no-tillage crop rotation resulted in the highest values for organic matter and macroporosity, and the lowest for soil bulk density. The average soybean yield was highest under no-till and trimestrial chiseling or crop rotation, and lowest for no-tillage annual crops no-tillage annual crops alone.

scholarly journals RENDIMENTO DE GRÃOS E EFICIÊNCIA DO USO DE ÁGUA DA CULTURA DO MILHO EM ÁREAS DE CULTIVO DE ARROZ INUNDADO COM DIFRENTE MANEJO DE IRRIGAÇÃO E DRENAGEM

Irriga ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 274
Author(s):  
Joaquim Rodrigues Faraco ◽  
Nilza Maria dos Reis Castro ◽  
José Antônio Louzada ◽  
Paulo Regis Ferreira Da Silva ◽  
Rodrigo Schoenfeld ◽  
...  
Keyword(s):  
Zea Mays ◽  
Water Use Efficiency ◽  
Crop Rotation ◽  
Water Use ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Porto Alegre ◽  
Significant Difference ◽  
Use Efficiency ◽  
Basin Irrigation

RENDIMENTO DE GRÃOS E EFICIÊNCIA DO USO DE ÁGUA DA CULTURA DO MILHO EM ÁREAS DE CULTIVO DE ARROZ INUNDADO COM DIFRENTE MANEJO DE IRRIGAÇÃO E DRENAGEM JOAQUIM RODRIGUES FARACO1; NILZA MARIA DOS REIS CASTRO2; JOSÉ ANTÔNIO LOUZADA2; PAULO REGIS FERREIRA DA SILVA3; RODRIGO SCHOENFELD4, MATHEUS BARRETO MAASS5; NATAN PAGLIARINI5 1 Engenheiro Agrícola, Mestre em Recursos Hídricos e Saneamento Ambiental pelo Instituto de Pesquisas Hidráulicas da Universidade Federal do Rio Grande do Sul, rua Coronel Lucas de Oliveira n. 2213, Porto Alegre-RS CEP 90460-001, [email protected] Instituto de Pesquisas Hidráulicas da Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, n. 9500, cx postal 15029, CEP 91.501-970. Porto Alegre – RS. [email protected], [email protected] Professor colaborador da Faculdade de Agronomia da Universidade Federal do Rio Grande do Sul e consultor técnico do Instituto Rio Grandense do arroz (IRGA). Rua av. Bento Gonçalves 7712. CEP: 91.540-000. Porto Alegre – RS. [email protected] Instituto Rio Grandense do Arroz (IRGA), Cachoeirinha. Endereço Av. Bonifácio de Carvalho Bernardes n. 1494. CEP: 94.930-030. Cachoeirinha.5 Engenheiro Agrônomo. Mestre em Fitotecnia pela Faculdade da Agronomia da Universidade Federal do Rio Grande do Sul. Av. Bento Gonçalves 7712. CEP: 91540-000. Porto Alegre - RS  1 RESUMO No Rio Grande do Sul cultiva-se o arroz como monocultura há pelo menos 5 décadas. Uma alternativa para introduzir-se rotação de cultura seria o cultivo do milho, aproveitando-se da estrutura de irrigação utilizada para o arroz. O objetivo deste trabalho é avaliar diferentes manejos de irrigação e drenagem visando introduzir o milho como alternativa para rotação de cultura em Gleissolo Háplico Distrófico Típico. O experimento foi conduzido nas safras de 2013/2014 e 2014/2015, na estação experimental do IRGA em Cachoeirinha-RS. Foram testados quatro tratamentos, todos com declividade de 0,08%, ao longo do comprimento das parcelas (79 m) e com três repetições: microcamalhão com irrigação por sulco; microcamalhão sem irrigação; sem microcamalhão com irrigação por lâminas superficiais (banhos); e sem microcamalhão sem irrigação. Foram avaliados alguns indicadores de rendimento do milho e a eficiência do uso da água (EUA) nas diferentes alternativas de manejos. Na safra 2013/2014 os resultados indicam produtividade superiores a 10 t ha-1 para o tratamento irrigado e com microcamalhão. Na safra de 2014/2015 não houve diferença significativa nos tratamentos. O milho utilizado como rotação de cultura com o arroz é tecnicamente viável com uso de irrigação e de uma drenagem eficiente. Palavras-chave: Zea mays; microcamalhão; solos mal drenados.  FARACO, J.R.; CASTRO, N.M.R.; LOUZADA, J.A.; SILVA, P.R.F., SCHOENFELD,R.; MAASS, M.B.; PAGLIARINI, N.YIELD AND WATER USE EFFICIENCY OF MAIZE IN RICE FLOODED AREAS WITH DIFFERENT IRRIGATION AND DRAINAGE MANAGEMENT    2 ABSTRACT Rio Grande do Sul practices rice monoculture for at least 5 decades. An alternative to introduce crop rotation would be the corn crop, taking advantage of the irrigation structure used for rice. The objective of this study is to evaluate different management of irrigation and drainage aimed to introduce corn as an alternative crop in Gleissolo Háplico Distrófico Típico. The experiment was conducted in 2013/2014 and 2014/2015, in IRGA's experimental station in Cachoeirinha-RS. Four treatments were tested, each with a slope of 0.08% along the length of parcels (79 m) and three replicates: furrow irrigation and small bund; no irrigation and small bund; basin irrigation and no small bund; and irrigation and no small bund. Were evaluated some income component of corn and the water use efficiency (USA) in the different alternatives managements. In 2013/2014 the productivity results indicate higher than 10 t ha-1 for the treatment and irrigated with microcamalhão. In 2014/2015 there was no significant difference in treatments. Corn used as crop rotation with rice is technically feasible with efficient irrigation and drainage management. Keywords: Zea mays; microcamalhão; poorly drained soils. 

scholarly journals Crop rotation affects soybean performance in no-tillage system under optimal and dry cropping seasons

2016 ◽  
Vol 10 (3) ◽  
pp. 353-361 ◽  
Author(s):  
Mirianny Elena Freitas ◽  
◽  
Luiz Carlos Ferreira de Souza ◽  
Júlio Cesar Salton ◽  
Ademar Pereira Serra ◽  
...  
Keyword(s):  
Crop Rotation ◽  
No Tillage ◽  
Tillage System ◽  
Cropping Seasons

scholarly journals Changes in a Rhodic Hapludox under no-tillage and urban waste compost in the northwest of Rio Grande do Sul, Brazil

2014 ◽  
Vol 38 (4) ◽  
pp. 1327-1336 ◽  
Author(s):  
Moacir Tuzzin de Moraes ◽  
Vanderlei Rodrigues da Silva ◽  
Maurício Roberto Cherubin ◽  
Reimar Carlesso ◽  
Henrique Debiasi ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Total Nitrogen ◽  
Block Design ◽  
Aggregate Stability ◽  
Mineral Fertilizer ◽  
Rio Grande ◽  
No Tillage ◽  
Rio Grande Do Sul ◽  
Urban Waste ◽  
Growing Seasons

The use of urban waste compost as nutrient source in agriculture has been a subject of investigation in Brazil and elsewhere, although the effects on soil physical and chemical properties and processes are still poorly known. The aim of this study was to evaluate the effect of application of urban waste compost and mineral fertilizer on soil aggregate stability and organic carbon and total nitrogen content of a Rhodic Hapludox under no-tillage in the northwestern region of Rio Grande do Sul, Brazil, in the 2009/2010 and 2010/2011 growing seasons. The experiment was arranged in a 2 × 6 (seasons and fertilization) factorial in a randomized complete block design with four replications. The factor time consisted of two growing seasons (sunflower in 2009/10 and maize in 2010/11) and the factor fertilization of five rates of urban waste compost (0, 25, 50, 75 and 100 m³ ha-1), and mineral fertilizer. Soil samples were collected from the 0.0-0.10 m layer to determine aggregate stability (mean weight and geometric diameter), soil organic carbon (SOC) and total nitrogen (TN). Rates of up to 75 m³ ha-1 of urban waste compost, after two years of application to no-tillage maize and sunflower, improved aggregation compared to mineral fertilization in a Rhodic Hapludox. After the second crop, the SOC and TN contents increased linearly with the levels of urban waste compost.

scholarly journals Sustainability in Soybean Production from the Perspective of the Producers

2020 ◽  
Vol 10 (1) ◽  
pp. 138
Author(s):  
Bianca Bigolin Liszbinski ◽  
Eliane Spacil de Mello ◽  
Maria Margarete Baccin Brizolla ◽  
Argemiro Luís Brum ◽  
Tiago Zardin Patias ◽  
...  
Keyword(s):  
Environmental Economic ◽  
Correlation Analysis ◽  
Production Process ◽  
Descriptive Analysis ◽  
Rio Grande ◽  
Crop Diversification ◽  
No Tillage ◽  
Agricultural Activities ◽  
Rio Grande Do Sul ◽  
Tillage System

This study aims to analyze the sustainability in the context of soybean cultivation by the cultivators’ perspective. The research is descriptive, with quantitative evidences operationalized through the application of questionnaires to a sample of soybean producers in the state of Rio Grande do Sul/Brazil. It was executed descriptive analysis of the profiles of the soybean farmers and the properties and technical-agronomic aspects profiles, then subsequently, a correlation analysis between variables from the producers and properties profiles with the environmental, social and economic of sustainability dimension. By the result of the research, it was observed that the majority of soybean producers have been doing this work for 30 years, with low schooling. In addition, regarding the structure of the properties, the area intended for soybeans varies in the sample from 5 to 2,300 hectares, with 25.1% of producers allocating more than 296 hectares for this cultivation. In the production process, it was noticed that most producers use different inputs, such as herbicides, insecticides, fungicides and fertilizers, besides the care with the soil through the use of no-tillage system and search from crop diversification. In producers’ perspective of the sustainability, it is identified some significant associations between certain producers’ profiles and property variables with environmental, economic and social topics. However, the evidences, it is suggested a wariness from these analyses, since there is a disagreement in the literature on sustainability in agricultural activities, such as soybeans, because of the complexity of assessing the performance of farmer perception and sustainability indicators.

scholarly journals The effects of crop rotation systems on maize agronomic traits under no-tillage in optimal and dry cropping seasons

2016 ◽  
Vol 11 (27) ◽  
pp. 2369-2377 ◽  
Author(s):  
Carlos Ferreira de Souza Luiz ◽  
Elena Freitas Mirianny ◽  
Elaine ◽  
Pereira Serra Ademar ◽  
Rech Jerusa ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Agronomic Traits ◽  
No Tillage ◽  
Cropping Seasons

scholarly journals COMPARATIVE BIODIVERSITY BETWEEN NO-TILL AND CONVENTIONAL TILL ON A CROP ROTATION

AGROFOR ◽  
2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Manuel MORENO-GARCÍA ◽  
Miguel Ángel REPULLO-RUIBÉRRIZ DE TORRES ◽  
Rosa María CARBONELL-BOJOLLO ◽  
Rafaela ORDÓÑEZ-FERNÁNDEZ
Keyword(s):  
Crop Rotation ◽  
Biological Diversity ◽  
Technological Development ◽  
Soil Surface ◽  
Conventional Tillage ◽  
No Tillage ◽  
Natural Processes ◽  
No Till ◽  
Agronomic Management ◽  
Tillage System

The technological development that agriculture has suffered in recent decades hasaffected biological diversity in agricultural fields. In particular, the life on the soilsurface, that is mainly constituted by invertebrates. This loss of biodiversity entailsthe disappearance of natural processes that this organisms support. For this reason,it is necessary to implement agronomic management that reduces impacts onagricultural soils. One of these alternatives is no-tillage system, which ischaracterized by the absence of soil ploughing and the maintenance of cropresidues on soil surface. In this sense, the present work has compared the existingbiodiversity in a crop rotation (sunflower-wheat-legume) between plots under notillageand plots under conventional tillage systems. With this objective, insects,arachnids, crustaceans and myriapods have been captured through pitfall traps.Four plots have been sampled, 2 under no-tillage and 2 under conventional tillage.In each plot have been placed 4 sampling areas, consisting of 5 pitfall traps each.The catches made have shown higher biodiversity values in no-tillage compared toconventional tillage. These differences have been significantly higher in terms ofnumber of species captured and with respect to the biodiversity indices ofMargalef, Simpson and Shannon. However, the increases in number of individualscaptured has not been significant as well as the uniformity indices of Pielou andSimpson.

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