An Optimal Control Framework for Resources Management in Agriculture

An optimal control framework to support the management and control of resources in a wide range of problems arising in agriculture is discussed. Lessons extracted from past research on the weed control problem and a survey of a vast body of pertinent literature led to the specification of key requirements to be met by a suitable optimization framework. The proposed layered control structure—including planning, coordination, and execution layers—relies on a set of nested optimization processes of which an “infinite horizon” Model Predictive Control scheme plays a key role in planning and coordination. Some challenges and recent results on the Pontryagin Maximum Principle for infinite horizon optimal control are also discussed.

Agro-ecology as a mediating science between the training of the agronomist and sustainable agriculture

Agro-ecology plays an important role in the implementation of sustainable development, and an agronomist can be a leading agent in the dissemination of that culture. In this perspective, a survey was carried out with the attendants of the course in Agronomy at the Instituto Federal de Educacao, Ciencia e Tecnologia do Mato Grosso, Campus Campo Novo do Parecis, Brazil. The object of the study was to analyze the participation of the academics in agro-ecological activities, seeking to observe the acceptance, perceptions and possible indications of incorporation of these principles in the training. The survey was conducted during the period July-December 2011. The approach was the qualitative method and the instruments used in data collection were participant observation and interviews during the activities. The results revealed the satisfaction of students in engaging in agro-ecological activities: Students developed concepts and incorporated the proposal of agro-ecology throughout the project. The contents of the agronomy course offered at the institution, in the perception of students, is strongly linked to the principles of conventional farming, not fully considering training to meet the challenges, and current and emerging demands of agriculture.

Application of nanotechnology for the encapsulation of botanical insecticides for sustainable agriculture: Prospects and promises

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estimativa da variação do estoque de carbono do solo em diferentes cenários de uso e manejo agropecuário no estado do Maranhão

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Indicators to the consumption of electric energy and agriculture cattle farming production for the elaboration of clusters with cities of the state of São Paulo, Brazil

The issue in this matter is that rules for use of electricity in rural areas are limited to the provision of inputs. Adopting guidelines to consider managed sub regions can generate poor results. The focus of this study was to present parameters for indicators of electric energy and agricultural production to allow the formation of city groups in Sao Paulo State, Brazil, with similar electric energy consumption and rural agricultural production. The methodology was the development of indicators that characterize the electric energy consumption/agricultural production and the preparation of groups using indicators with ward of statistical method of groups. The main conclusions were the formation of six homogeneous groups with similar characteristics regarding agricultural production/consumption of electricity. The application of these groups in cities with similar characteristics would produce more satisfactory results than the division of administrative Rural Development Offices (RDO).

Analysis of simple hardware efficiency for temperature measurement in agriculture and environment

This work focuses basically on the design and analysis of simple and low cost hardware systems efficiency for temperature measurement in agricultural area. The main objective is to prove quantitatively, through statistical data analysis, to what extent a simple hardware designed with inexpensive components can be used safely in the indoor temperature measurement in farm buildings, such as greenhouses, warehouse or silos. To verify the of simple hardware efficiency, its data were compared with data from measurements with a high performance LabVIEW platform. This work proved that a simple hardware based on a microcontroller and the LM35 sensor can perform well. It presented a good accuracy but a relatively low precision that can be improved when performed some consecutive signal sampling and then used its average value. Although there are many papers that explain these components, this work has the distinction of presenting a data analysis in numerical form and using high performance systems to ensure critical data comparison.

RB34-71 Effects of Inflation and Deflation Upon Nebraska Agriculture, 1914 to 1932

Nebraska farmers prospered during the period which followed the depression of the nineties and preceded the beginning of the World War. To be sure the prosperity was not uniformly distributed either by years or by areas. The corn crop was unusually short in a large portion of the state in 1901 and an almost total failure in many of the southern counties in 1913. Chinch bugs did considerable injury in 1901 and the Hessian fly in 1905 and 1914. There was noticeable damage from insects in some areas in other years. No part of the state, however, suffered from long-continued drouth or repeated ravages of insect pests. The depression of 1907 affected credit and prices very severly for a few months, but recovery was rapid and within less than a year business was again moving forward. This 1934 research bulletin covers the problems of inflation and deflation; changes in the prices of various commodities during inflation and deflation; prices and purchasing power of Nebraska farm products, 1914 to 1932; adjustments during inflation and deflation; the effect of wages on Nebraska agriculture; taxes; Nebraska farm income; changes in types of farming in Nebraska, 1914 to 1932; the banking situation; Nebraska farm land prices; and the effects of inflation and deflation upon Nebraska businesses.

Agriculture Builders of Nebraska Inc.

It’s a pleasure to be able to speak with you today. I want you to know that Virginia and I are delighted to be in Nebraska. And I’m especially happy to have arrived in the state at a time where I can, on my 7th day on the job, learn so much about UNL just by reading the state’s largest newspaper.

Agriculture Builders of Nebraska

Good morning. It is my very great pleasure to be here with you today, and to have this opportunity to visit with you about the Institute of Agriculture and Natural Resources. I’m going to talk for just a few minutes about issues and highlights for the Institute, and then I’ve asked Dan Cotton, director of IANR’s Communications and Information Technology unit to illustrate some of the fine and innovative work being done in the Institute to benefit Nebraska.

Agriculture at the Crossroads

What a pleasure it is to have this opportunity to welcome you all to this thirteenth annual Agriculture at the Crossroads Conference sponsored by the Nebraska AgRelations Council and the Department of Agricultural Economics here in the Institute of Agriculture and Natural Resources at the University of Nebraska- Lincoln.

Agriculture Builders of Nebraska, Inc. Morning Session

Good morning! On behalf of the Institute of Agriculture and Natural Resources representatives here this morning, I want to express our very real pleasure in being with you, and our very great appreciation of all that you do. We in the Institute value the Agriculture Builders of Nebraska highly. Your support for our work and the wise counsel of ABN members has been invaluable to me personally since my arrival in Nebraska, and I know that is true of the entire Institute, as well. In fact, the thoughtful perspective and the confidential advice of the ABN Executive Committee in the recent third-round of budget cutting decisions we faced in the Institute helped me work through what we had to do in that very, very difficult round of cuts.

Agriculture Builders of Nebraska, Inc.

There’s a story that a construction foreman one day noticed one of his workers pushing his wheelbarrow upside down around the work site. “Hey,” the foreman shouted, “turn that thing right side up!” The man with the wheelbarrow looked at him in surprise. “Don’t be silly,” he said. “Every time I do that, they put bricks in it!” I think of that story sometimes, in the midst of these difficult economic times, as our states, its people, and its university, in turn, wrestle with budge cuts. Wouldn’t it be great if we all could just turn our wheelbarrows over and say, “No thanks, no more brick! No more heavy loads to haul!”

Agriculture Builders of Nebraska Annual Meeting

Anthony McAuliffe was acting commander of the 101st Airborne Division during the Battle of the Bulge in World War II. December 22, 1944, he was in charge of the-defense of Bastogne when advancing German forces called upon his garrison to surrender.

Agriculture Builders of Nebraska, Inc.

What a pleasure it is to be with you here this morning! And How startling it is to realize a whole year has passed since we last gathered at this meeting. So much has occurred in that year.

Nebraska College of Technical Agriculture Budget Hearing

Good afternoon Senator Wehrbein and members of the Appropriations Committee. I am John Owens, and I am University of Nebraska Vice President for Agriculture and Natural Resources, and Harlan Vice Chancellor of the Institute of Agriculture and Natural Resources at the University of Nebraska- Lincoln. I am here to speak with you about the impact of further budget cuts to the Nebraska College of Technical Agriculture - NCTA - at Curtis, Nebraska.