Precision planter and fertilizer applicator for use on experimental plots /

Cover title.

British Manufacturing Industries. Edited by G.P. Bevan.

Imperfect; wanting the volume entitled, "Paper, by Prof. Archer, Printing, by Joseph Hatton, etc."

Stump puller in action four miles west of Gladwin, Michigan, September, 1914

description accompanying photograph: photos of stump puller made September 1914. Location: some four miles west of Gladwin, Mich. Undersigned was a member of this stumping crew at that time. signed: C. Ernest Robison 402 N. Broadway Spencerville, Ohio 45887

Carsonville, Michigan - spring, 1919

verso: The horse-drawn implement is a snow-ice plow. Only the brick building (far right) still stands (1954).

Farm building and equipment plans and information series.

Mimeographed.

Mémoires

Mode of access: Internet.

Report of the Federal trade commission on the causes of high prices of farm implements.

Mode of access: Internet.

Thresher manual : instructions on operation and care of Case grain threshers.

Mode of access: Internet.

Handbuch der landwirtschaftlichen Gewerbe /

Includes bibliographical references and index.

Avaliação de uma plataforma para colheita mecanizada de mamona.

O desenvolvimento de um equipamento para a colheita de mamona representa um importante passo para a superação do principal limitante ao crescimento da produção desta oleaginosa. Até então, a colheita de mamona em todo o mundo era feita manualmente. O aumento do custo da mão de obra estava tornando esta opção inviável. Este documento consiste na avaliação da plataforma de colheita de mamona que foi feita por três anos no Estado do Mato Grosso, seguindo as versões do equipamento que foram disponibilizadas a cada período. Esperamos que esta tecnologia tenha um impacto positivo no sistema de produção de mamona, viabilizando seu cultivo em áreas extensas de forma competitiva.

Physical soil attributes of Conilon coffee (Coffea canephora) under organic and conventional management systems.

Coffea sp. is cultivated in large areas, using both conventional and organic management. However, information about the sustainability of these two management systems is still deficient. The objective of the present study was to evaluate the physical properties of soil cultivated with Conilon coffee (C. canephora) under organic and conventional management. Two areas cultivated with Conilon coffee (under organic and conventional management) and a fragment of Atlantic forest, used as a reference, were selected for the experiment. Soil granulometry, hydraulic conductivity, water retention curve, resistance to penetration, porosity, optimal hydric interval, and other physical characteristics were measured at depths of 0 to 10 and 10 to 20 cm. The data was submitted to multivariate and descriptive statistical analyses. Higher similarity was observed between the soil cultivated with Conilon coffee under organic management and the Atlantic forest soil. Soil resistance to penetration at 10, 30, 100, 500 and 1500 kPa, macro porosity, density and total porosity were the main physical properties that differentiated both management systems studied. The non-use of agricultural machinery and the addition of organic matter may be the main reasons for higher soil sustainability observed under organic management when compared with the conventional system.

Scientific machinist : for superintendents, engineers and operators of power and electric plants, and all machinery.

Subtitle varies.