Download or read book Measuring the Effects of Eather on Agricultural Output written by L. H. Shaw and published by . This book was released on 1962 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measuring the Effects of Weather on Agricultural Output written by LAWRENCE H. SHAW and published by Forgotten Books. This book was released on 2018-04-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Measuring the Effects of Weather on Agricultural Output: Procedures for Constructing Weather Indexes When we talk about weather in agriculture, we are interested in the net influence of all meteorological and closely associated factors on output. Weather and technol ogy, therefore, are defined in their broadest sense. Weather is those conditions Of the crop-growing environment that are beyond the control of farmers; technology is the sum total Of controllable resources and how they are used. Weather indexes for corn yields and production in Iowa from 1929 to 1960 were constructed using a plot data approach. State indexes were developed by aggregating weather indexes for individual Crop Reporting districts. The weather indexes were used in adjusting for the influence of weather the State and district actual yields per harvested acre and total production of corn. Variation in the adjusted yield series is an estimate of the effect of changes in technology. The series of adjusted corn yields for Iowa, 1929-60, indicates that improved technology increased yields in two steps. Yields from 1929 to 1935 were relatively stable. Beginning around 1935, corn yields increased rapidly until the early l94o's. This was the period marked by the rapid acceptance Of hybrid seed corn. Less than 1 percent of the corn acreage in 1933 was planted with hybrid seed; the percentage increased to nearly 99 by 1942. Corn yields remained at the new level throughout the l94o's and early l95o's. Then about 1954 a second period of yield increase began. This second increase does not appear to be due to any single factor but to a combina tion of improved practices such as increased use of fertilizer and higher planting rates. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Measuring the Effects of Weather on Agricultural Output written by Lawrence Hugh Shaw and published by . This book was released on 1962 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Weather and Technology on Corn Yields in the Corn Belt 1929 62 written by Lawrence Hugh Shaw and published by . This book was released on 1965 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agricultural Productivity and Producer Behavior written by Wolfram Schlenker and published by University of Chicago Press. This book was released on 2019-11-13 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural yields have increased steadily in the last half century, particularly since the Green Revolution. At the same time, inflation-adjusted agricultural commodity prices have been trending downward as increases in supply outpace the growth of demand. Recent severe weather events, biofuel mandates, and a switch toward a more meat-heavy diet in emerging economies have nevertheless boosted commodity prices. Whether this is a temporary jump or the beginning of a longer-term trend is an open question. Agricultural Productivity and Producer Behavior examines the factors contributing to the remarkably steady increase in global yields and assesses whether yield growth can continue. This research also considers whether agricultural productivity growth has been, and will be, associated with significant environmental externalities. Among the topics studied are genetically modified crops; changing climatic factors; farm production responses to government regulations including crop insurance, transport subsidies, and electricity subsidies for groundwater extraction; and the role of specific farm practices such as crop diversification, disease management, and water-saving methods. This research provides new evidence that technological as well as policy choices influence agricultural productivity.

Download or read book Effects of Weather on Agricultural Production written by Sudhin K. Mukhopadhyay and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agricultural Economic Report written by and published by . This book was released on 1965 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measuring the Impact of Climate Change on Indian Agriculture written by Ariel Dinar and published by World Bank Publications. This book was released on 1998-01-01 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the Ricardian approach (a cross sectional analysis of farm performance across different climate zones), this report examines the impact of climate change on the agriculture sector and the sector's adaptation to that change. Studies in the report measure the climate sensitivity of low-capital agriculture, test whether actual farm performance is as sensitive to climate as agronomic models predict, and compare the climate sensitivity of low-capital farms with the results already calibrated for U.S. agriculture. The goal of the study is to examine farm behavior and test whether there is any evidence that farmers in developing countries currently adjust to their local climates.

Download or read book Estimating the Impact of Weather on Agriculture written by Jeffrey D. Michler and published by . This book was released on 2021 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper quantifies the significance and magnitude of the effect of measurement error in remote sensing weather data in the analysis of smallholder agricultural productivity. The analysis leverages 17 rounds of nationally-representative, panel household survey data from six countries in Sub-Saharan Africa. These data are spatially linked with a range of geospatial weather data sources and related metrics. The paper provides systematic evidence on measurement error introduced by (1) different methods used to obfuscate the exact GPS coordinates of households, (2) different metrics used to quantify precipitation and temperature, and (3) different remote sensing measurement technologies. First, the analysis finds no discernible effect of measurement error introduced by different obfuscation methods. Second, it finds that simple weather metrics, such as total seasonal rainfall and mean daily temperature, outperform more complex metrics, such as deviations in rainfall from the long-run average or growing degree days, in a broad range of settings. Finally, the analysis finds substantial amounts of measurement error based on remote sensing products. In extreme cases, the data drawn from different remote sensing products result in opposite signs for coefficients on weather metrics, meaning that precipitation or temperature drawn from one product purportedly increases crop output while the same metrics drawn from a different product purportedly reduces crop output. The paper concludes with a set of six best practices for researchers looking to combine remote sensing weather data with socioeconomic survey data.

Download or read book Modeling Soviet Agriculture written by Robert L. Kellogg and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERS Staff Paper written by and published by . This book was released on 1995 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques in Measuring Joint Relationships written by Walter A. Hendricks and published by . This book was released on 1943 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Hired Farm Working Force of 1963 written by Gladys Kleinwort Bowles and published by . This book was released on 1965 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Changing Sources of Farm Output written by Donald Douglas Durost and published by . This book was released on 1960 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Weather and Yield 1950 94 written by Lloyd D. Teigen and published by . This book was released on 1995 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Weather in U S Agriculture written by Lloyd D. Teigen and published by . This book was released on 1988 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of Recent Published Material on Soil and Water Conservation written by and published by . This book was released on with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstracts for Dec. 1954- issued in the Agricultural Research Service's series ARS-41.