The water content effect applied pressure were analyzed on “Terra Roxa Estruturada”, on classes of aggregates of 0 to 2.5 mm; 2.5 to 5.1 mm; 5.1 to 9.4 mm and 9.4 to 19.3 mm. There has been used water content rates of ...

A precision pneumatic metering and transport system for seeds was developed. This system can be adapted for continuous flow. It includes a valve for conversion of pressure to vacuum and a pneumatic metering system coupled ...

An optimized four-bar linkage is proposed to reduce soybean header losses. It consist of a floating fork closely following the soil surface to lift and feed branches and pods to the flexible cutter bar. Soilfork interaction ...

In this research fiel tests of a tractor’s darwbar were conducted to measure the fuel consumption in several conditions of drawbar pull and power. The objective was to calculate the fuel specific consumption using the ...

This work had as the principal aims a development of on equipment for cut/to join bean for conditions the ours soils. The equipment developed is for to attach in the front of the tractor with hidraulic action. The ...

The decreasing of inflation and the radial tires was been a alternative used to minimize the effect of compaction of the agricultural vehicles and to increasing the tractive efficiency. Both factors associated resulted ...

The main purpose of this work was to evaluate and compare the performance of a small 25 saws gin prototype against a 50 saws conventional gin and a roller gin. Comparison was made by contrasting fiber turn out, length and ...

Field tests were carried out with the aim to evaluate soil condition induced by three tillage systems: moldboard plow, chisel plow and no till and the effects of tillage on three corn hybrid's yield. Field plots were ...

An experiment was conducted at the Fazenda Experimental Lageado, Botucatu, SP., to evaluate the effect of different operational speeds with a cutting roller, tractor-driven, in management of spontaneously established ...

In this work the ergonomics situation of the JF 90 SUPER forage picker operator were evaluated. The work position was analysed looking for betterment comfort, security and health of the forage picker operator. A video tape ...