SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Reynolds, Marco Antonio; Campos, Santos Gabriel; Cadena, Martin; Lopez, Juan Antonio; Cuervo, Neftali.

Proper selection and correct use of machinery in agriculture must be understood as a component of a process which aims to optimize crop yield and to make a more efficient use of resources. The objective of this study was the assessment of different chisel plow body arrangements using different settings of the most important operating parameters for tillage work in order to optimize energy consumption for vertical tillage. The influence of different operating parameters of tillage tools on the performance in cultivation practice must be considered before applying deep plowing for a more efficient use of energy. The parameters considered in this study were: 1) working depth based in the critical depth theory 2) position and spacing of chisels 3) number of...

Performance evaluation of disc ridging tractive force model in loamy sand soil using sensitivity measured parameters

Palavras-chave: Mecanization; Soil tillage; Conservation energy depth plowing; Tillage; Chisel plow; Energy consumption; Critical depth.

Ano: 2015

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3146

Nkakini, Silas Ovua.

Abstract: Disc ridging operations in a loamy sand soil, at tillage speeds of 1.94 m/s, 2.22 m/s and 2.5 m/s, using trace tractor techniques, were conducted. The dependent and independent variables involved in the models were measured. The sensitivity of measured parameters was used for evaluating performance of developed models which described the tractors tyre-soil- interactions parameters. Results showed performance of the wheel-tractors tractive force models having sensitivity coefficients ranging from -0.00164 to 0.2505, -0.00698 to 0.0979 and -0.00258 to 0.2595 for Disc ridging, with all the independent variables at 1.94 m/s, 2.22 m/s and 2.50 m/s tillage speeds respectively. The lowest sensitivity coefficient of -0.00698 to 0.0979 was obtained at...

Field Evaluation of Some Tillage Practices in Rainfed Wheat Planting: Their Effects on Crop Yield Components and Implements

Palavras-chave: Agricultural Engineering Modelling; Tractive force; Disc ridging; Performance; Tillage; Loamy; Sand; Soil; Sensitivity measurement; Soil moisture..

Ano: 2014

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2781

Younesi alamooti, Mohammad.

This study is aimed to evaluate the effect of multiple tillage practices on the wheat yield in rainfed fields. The experiment was conducted in three field preparation and planting treatments including Conventional tillage (moldboard plow, disc, and centrifugal seed spreader) indicated as T1, chisel plow, disc, and planting with deep drill as T2, and conservation tillage (plowing with heavy disc on last year’s crop residues, and planting with deep drill) as T3. The performance characteristics as well as agronomic and crop yield parameters were measured and analyzed for two consecutive years. The design of experiments was carried out base on Randomized Complete Blocks with four replications. The analysis of results showed that the conservation tillage had a...

Performance evaluation of a spring tine cultivator in a sandy loam soil

Palavras-chave: Agricultural Machinery Department; Agricultural Engineering Research Institute (AERII); Karaj; Iran. Implement Efficiency; Conservation; Tillage; Rainfed wheat; Fuel Consumption..

Ano: 2015

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3182

Okoko, Paul; Umani, Kingsley Charles; Onwe, David Nwabueze.

Selection and matching of appropriate tillage implements for a given farming operation are dependent on the data available on draft parameters for the particular tillage implement. Spring tine cultivator is one of the primary tillage implements commonly used by farmers in the study location. Performance information of spring tine cultivator is vital to enable the cost of tillage operation to be reduced. Field experiments were performed using spring tine cultivator and tractor at three tillage depths (10, 20 and 30 cm) and five tractor speeds (3.6, 5.4, 7.2, 9.0 and 10.8 km/hr) to determine the implement travel speed. The effects of tillage depth and implement travel speed on draft force, unit draft, vertical specific draft, horizontal specific draft and...

Draft and Power Requirements for some Tillage Implements operating in Clay Loam Soil

Palavras-chave: Tillage; Draft; Unit draft; Specific draft; Coefficient of pull; Tractor; Spring tine cultivator.

Ano: 2023

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7061

Okoko, Paul.

Draft and power requirement determinations were made for some tillage implements operating on clay loam soil. The implements included a 3 – bottom disc plough, a spring tine cultivator and an offset disc harrow. The effects of speed and depth upon the draft and power requirements were investigated. Soil analysis test, tractor and implement specifications and results of tillage experiments are reported. A general regression equation to predict draft and power requirements of these implements on a clay loam soil was developed based on speed and depth parameter. A significant increase in draft and power requirements were observed for all the implements with an increase in depth. The relationships between draft and power requirement with respect to speed and...

Prediction of tractive force model for disc harrowing using sensitivity analysis

Palavras-chave: Farm power and Machinery Draft; Power requirement; Moisture content; Tillage.

Ano: 2018

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4563

Nkakini, Silas Ovua; Douglas, I. E..

In this study, a comparative evaluation of tractive force models for disc harrowing, at different tillage speeds was carried out in order to determine optimal tillage speeds. The predictive models were developed using dimensional analysis. The tillage operation in a loamy sand soil, at tillage speeds of 1.94 m s-1, 2.22 m s-1 and 2.5 m s-1 respectively was conducted, using trace tractor techniques. Parameters such as drawbar pull, rolling resistance, wheel slip, moisture content, cone index, wheel numeric, contact pressure, speed, width of harrow, depth of harrow, and tractive force were measured. The developed mathematical models describing the tractors tyre-soil interactions parameters were evaluated using sensitivity analysis of the measured...

Replacing clean fallow with minimum tilled pulse legume in a subtropical dryland at Pothwar, Pakistán

Palavras-chave: Predictive; Tractive force; Disc harrowing; Tillage; Loamy; Sand; Soil; Modelling; Sensitivity measurement; Soil moisture..

Ano: 2013

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2374

Agrociencia

Sohail-Ijaz,Shahzada; Ali,Safdar.

Clean fallowing has been criticized in the recent past due to the fact that it causes accelerated soil erosion, emission of CO2 to the atmosphere and reduction in farm income. In an effort to reduce fallowing in Pothwar, Pakistan, field experiments were carried out from 2005 through 2008 at three locations (Rawalpindi, Chakwal and Fateh Jang). The experimental design was split-plot and treatments were applied as follows: conventional cultivator, moldboard plow and minimum tillage in main plots; fallow, legume (mungbean, Vigna radiata) and mulch of wheat straw were used in sub plots. Wheat (Triticum aestivum) was planted in all the subplots during winter. All the treatment plots had equivalent volumetric water content at wheat planting. Consequently, the...

URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952011000100005

Palavras-chave: Fallow; Tillage; Mungbean; Soil water content; Wheat; Gross margins.

Ano: 2011

Influencia de diferentes manejos agrícolas sobre el crecimiento radical y su relación con la agregación del suelo.

Colegio de Postgraduados

Torres Guerrero, Carlos Alberto.

Los suelos de México han sido degradados en los últimos años en buena parte por la acción del hombre. Debido a las prácticas agronómicas empleadas en la mayor parte del país (labranza convencional, monocultivos y remoción de residuos vegetales de cosechas anteriores) los suelos con potencial agrícola se han visto disminuidos en su productividad. La Agricultura de Conservación (AC) ofrece un aprovechamiento sustentable del recurso suelo, asegurando su estabilidad y estructura, con el propósito de aumentar los rendimientos de los cultivos. El experimento que se reporta es de larga duración. Se inició en 1991 en el Batán Texcoco, Estado de México, en el Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) y consta de 32 parcelas con diferentes...

Palavras-chave: Labranza; Agricultura de conservación; Raíces; Agregación; Maestría; Edafología; Tillage; Conservation agriculture; Roots; Aggregation.

Ano: 2012

URL: http://hdl.handle.net/10521/1755

Edafofauna como indicador de calidad en un suelo cumulic phaozem sometido a diferentes sistemas de manejos en un experimento de larga duración.

Colegio de Postgraduados

Chocobar Guerra, Eneyda Andrea.

Los organismos del suelo contribuyen en la formación y los cambios de la estructura física del suelo e influyen en la dinámica de los nutrientes por sus efectos sobre la inmovilización y humificación de la materia orgánica. Por lo anterior, es importante estudiar la edafofauna en sistemas de larga duración (15 años) porque repercute de manera directa en el rendimiento de los cultivos y en el mejoramiento del suelo. Estas cualidades además pueden ser empleadas para crear indicadores biológicos de calidad del suelo, con el objeto de potenciar manejos agrícolas con tendencias sustentables. La investigación se enfocó en clasificar (grupo taxonómico), cuantificar (Nº individuos m-2) medir biomasa (gramos m-2) y evaluar la variación poblacional de la edafofauna...

Palavras-chave: Indicadores biológicos; Labranza; Rotación; Residuos; Biological indicator; Tillage; Crop rotation; Residues; Maestría; Edafología.

Ano: 2010

URL: http://hdl.handle.net/10521/317

K-NEAREST NEIGHBORS METHOD FOR PREDICTION OF FUEL CONSUMPTION IN TRACTOR-CHISEL PLOW SYSTEMS

REA

Al-Dosary,Naji Mordi Naji; Al-Hamed,Saad Abdulrahman; Aboukarima,Abdulwahed Mohamed.

ABSTRACT Most important farm operations require a significant amount of energy, and this consumes a major portion of the farm's budget. Consequently, analyzing the fuel consumption of agricultural machinery for farm operations of different sizes makes it possible to predict fuel consumption to set an appropriate budget for energy. The main purpose of this study was to determine the ability of the k-nearest neighbors (KNN) algorithm to predict the fuel consumption of tractor–chisel plow systems correctly. A training-set design of 139 points of 173 data points obtained from the literature was utilized, and the remaining 34 data points were applied as a test set. The input parameters were tractor power, plowing width, depth and speed of plowing, soil...

Positioning of fertilizer in corn sowing

Palavras-chave: Machine-learning algorithms; Tillage; Prediction; K-nearest neighbors; Fuel consumption; Chisel plow.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000600729

REA

Weirich Neto,Pedro H.; Justino,Altair; Frare,Ivo; Gomes,Jorge N.; Garcia,Luiz C..

The aim of this study was to determine whether the form of placing the fertilizer by the planter during the sowing under mulch in the no till system affects the yield of corn. The treatments consisted of placing the fertilizer during the seeding 0.05 m below and beside the seed, in front of the cutting blade and without fertilizer, in 03 farms during 03 cropping years. The experimental design at each farm was the randomized block, with 08 repetitions, whose plots had 30 m² each. The initial population and yield components were evaluated. Under the experimental conditions it is concluded that base fertilization can affect the yield. Fertilizer placement can affect the initial stand, but not the yield.

MODELING OF DRAFT AND ENERGY REQUIREMENTS OF A MOLDBOARD PLOW USING ARTIFICIAL NEURAL NETWORKS BASED ON TWO NOVEL VARIABLES

Palavras-chave: Tillage; Seeding fertilizer; Yield components.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600010

REA

Al-Janobi,Abdulrahman; Al-Hamed,Saad; Aboukarima,Abdulwahed; Almajhadi,Yousef.

ABSTRACT Draft and energy requirements are the most important factors in the activities of farm machinery management owing to their role in matching the tractor with implements for different tillage operations. This study's aim was to model the draft and energy requirements of a moldboard plow based on two novel variables. The first was the soil texture index (STI), which was formed from the clay, sand, and silt contents with a range of 0.03–0.84. The second variable was the field working index (FWI), formed by combining the plow width, plowing speed, soil bulk density, soil moisture content, plowing depth, and tractor power into one dimensionless variable, which had a range of 7.17–82.45. The coefficient of determination (R2) values obtained using a...

Cultivo de banana nos Cerrados do DF.

Palavras-chave: Soil texture index; Field working index; Artificial neural network; Prediction; Tillage.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300363

ESCOLHA e manejo do componente arbóreo em sistemas ILPF: programa 32: Centro-Oeste/Sudeste.

GUIMARÃES, T. G..

Tipo: Artigo na mídia

Palavras-chave: Cultivo; Savanna; Cerrado; Banana; Brazil; Bananas; Tillage.

Ano: 2008

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571749

Adubação de manutenção para a cultura da soja no sistema plantio direto.

O Prosa Rural desta semana fala sobre o uso de árvores em sistemas de integração lavoura-pecuária-floresta ( ILPF) - estratégia de produção que integra diferentes sistemas produtivos, agrícolas, pecuários e florestais dentro de uma mesma área. O pesquisador Maurel Behling, da Embrapa Agrossilvipastoril, traz explicações sobre a escolha da espécie arbórea, a definição do espaçamento e da configuração, bem como os cuidados que o produtor deve tomar na condução e manejo das árvores.

Tipo: Gravações de som

Palavras-chave: Árvore; Lavoura; Pecuária; Floresta; Espaçamento; Produtor; Trees; Tillage; Forests; Livestock.

Ano: 2020

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124740

Experiences in Brazil with no till vegetable system (NTVS) - brassicas.

KURIHARA, C. H.; MAEDA, S.; HERNANI, L. C..

Tipo: Folhetos

Palavras-chave: Soybean; Plantio Direto; Soja; Tillage.

Ano: 1998

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/976409

MELO, R. A. de C. e; MADEIRA, N. R.; LIMA, C. E. P..

Tipo: Folhetos

Palavras-chave: Brassica oleracea var botrytis; Brassica oleracea var sabellica; Brassica oleracea var italica; Brassica oleracea var capitata; Tillage.

Ano: 2016

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1062311

ESCOLHA e manejo do componente arbóreo em sistemas ILPF: programa 32: Sul.

Cultura do girassol: tecnologia de produção.

O Prosa Rural desta semana fala sobre o uso de árvores em sistemas de integração lavoura-pecuária-floresta ( ILPF) ? estratégia de produção que integra diferentes sistemas produtivos, agrícolas, pecuários e florestais dentro de uma mesma área. O pesquisador Maurel Behling, da Embrapa Agrossilvipastoril, traz explicações sobre a escolha da espécie arbórea, a definição do espaçamento e da configuração, bem como os cuidados que o produtor deve tomar na condução e manejo das árvores.

Tipo: Gravações de som

Palavras-chave: Árvore; Espaçamento; Floresta; Lavoura; Pecuária; Produtor; Forests; Livestock; Tillage; Trees.

Ano: 2020

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124761

Sua adubação é competitiva?

CASTRO, C. de; CASTIGLIONI, V. B. R.; BALLA, A..

Escolha de area e preparo do solo; Correcao da acidez; Adubacao; Epoca de plantio; Plantio; Densidade; Controle de plantas daninhas; Doencas e pragas; Colheita.

Tipo: Folhetos

Palavras-chave: Preparo do solo; Semeadura direta; Densidade; Planta daninha; Brasil; Parana; Sunflower; Production; Disease; Pest; Acidez do Solo; Adubação; Colheita; Época de Semeadura; Doença; Girassol; Praga; Plantio Direto; Produção; Brazil; Harvesting; Density; Fertilizer application; No-tillage; Soil pH; Tillage; Sowing date; Weeds.

Ano: 1996

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/459921

Por que utilizar na agricultura um implemento utilizado em obras rodoviárias?

RESENDE, A. V. de.

Tipo: Artigo na mídia

Palavras-chave: Fertilidade do solo; Plantio direto; Adubação; Fertilizer application; Tillage.

Ano: 2013

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/979384