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Inoculation with Azospirillum brasilense in corn cultivated on cover crops and ...

Hand-arm vibration while operating a side brush cutter with three cutting imple...

The use of side brushcutters exposes users to vibration and noise, which can cause damage to the operator, as they act as a stressor agent. Excessive vibration is responsible for countless disorders, including Raynaud’s syndrome. This study aimed to assess the effect of the vibrations of a side brush cutter on the human body. A side brush cutter was used with three cutting implements (double blade, triple blade...

Inoculation of corn seeds with Azospirillum brasilense in different temperatures

Growth-promoting bacteria Azospirillum brasilense, used as an inoculant in corn culture, can be severely affected by the exposure temperature, with a lethal effect above 35°C, when cultivated alone under laboratory conditions. Such effects may limit the associative interaction between plant-bacteria, with reduced inoculation efficiency, resulting in a lower growth rate of the plant and an increase in oxidative ...

Homogeneous regions and sample size for attributes of the climate in Sao Paulo ...

Made available in DSpace on 2020-12-10T16:34:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-05-01; The purpose of this study was to separate homogeneous regions and to estimate the numbers of years necessary to evaluate the variables: sunshine, global solar radiation and photossintetically active radiation in Sao Paulo State. Monthly data of sunshine, solar radiation and photossintetically active rad...

Mineral supplementation of soybean seeds with different initial nutrient levels

The objectives of this study were to evaluate the effect of the chemical composition of soybean seeds and the efficiency of seed mineral supplementation on physiological quality and field performance. Two seed lots (high and low levels of mineral nutrition), with or without supplemental macro- and micronutrients, of three soybean cultivars (BMX Potência RR, BMX Turbo RR, and BMX Magna RR) were used. For the lab...

Expolinear model on soybean growth in Argentina and Brazil

Prever o crescimento e a produtividade das culturas com precisão é uma das principais preocupações das ciências agrícolas. Com esse propósito, modelos mecanísticos de crescimento de culturas têm sido desenvolvidos e testados. A adequação do modelo expolinear de crescimento de culturas foi avaliada para prever as modificações de crescimento de cultivares de soja (Glycine max L. Merrill) de crescimento determinad...

RECYCLABLE DOMESTIC SOLID WASTE IN FAMILY FARMS: A CASE STUDY IN SOUTHERN BRAZIL

Recycling domestic solid waste is a growing urban world demand; however, there are few studies about it in areas dominated by small farms, as in Brazil. To quantify the current composition of domestic rural waste, we monitored gravimetric composition of recyclable domestic solid waste and economic indicators in the homes of 31 family farmers in Southern Brazil for a period of 12 months. The annual expenditure a...

Planeamento da produção leiteira - técnicas de modelação na tomada de decisão p...

A bovinocultura de leite apresenta grande importância económica para várias regiões do Brasil e nos últimos anos houve mudanças significativas no setor. O presente trabalho teve por objetivo realizar uma revisão da utilização da modelação para a determinação de genótipos de milho mais indicados para a produção de silagem e, por conseguinte, produção de leite. Com a utilização de técnicas como o uso de modelos m...

Inoculation of soybean seeds coated with osmoprotector in diferents soil pH's

  Inoculation with nitrogen-fixing bacteria (Bradyrhizobium) is an indispensable technology to increase the productivity of the soybean crop. The objective of this study was to evaluate the viability of the inoculation with Bradyrizobium bacteria associated with the osmoprotector coating on different pre-sowing days and the effect of different soil pH on the components of yield, nodulation and grain yield of so...

Desempenho agronômico de genótipos de milho sob condições de restrição hídrica

O objetivo, deste trabalho, foi avaliar o desempenho agronômico de genótipos de milho, no município de Dois Vizinhos, Paraná, Brasil, em condições de restrição hídrica. Foram avaliados 36 genótipos pertencentes ao ensaio Sul Super Precoce quanto aos caracteres relacionados com a produção de grãos. Os genótipos utilizados foram fornecidos pela Embrapa Milho e Sorgo e fazem parte dos Ensaios de competição de cult...