Download or read book The 1944 Iowa Corn Yield Test written by Francis Reiss and published by . This book was released on 1945 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Each year the Iowa Farmer has a multitude of corn hybrids from which he can choose seed for planting. Some are well established strains of proven worth while others are new and relatively untried. It is impossible to determine, from the appearance of the seed in the bag, the desirability of any particular hybrid. The real test of its value is determined by planting it along with other hybrids to check its field performance. The Iowa Corn Yield test attempts to provide comparable performance records on a number of hybrids. It is believed that the information presented in this bulletin should afford a reliable comparison of the relative performance of various hybrids when grown in different parts of the state. Data are presented on each entry for yield, stand moisture, root and stalk lodging, ear height, dropped ears and damaged corn. A performance score has been used in evaluating the relative agronomic value of the various hybrids tested." -- p. [473]

Download or read book The 1942 Iowa Corn Yield Test written by Arthur Geoffrey Norman and published by . This book was released on 1942 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this bulletin is to describe that phase of contour farming known as strip cropping." -- p. [731]

Download or read book The 1947 Iowa Corn Yield Test written by Joseph Lee Robinson and published by . This book was released on 1948 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Iowa Corn Yield Test is conducted annually to provide impartial comparable performance records on a relatively large number of hybrid combinations. Each hybrid tested is ranked by a performance score based on held, dry matter content of grain, lodging resistance and the percentage of ears held on the stalks. In view of the present world food need, it is important that farmers plant hybrids adapted to their particular locality. The information presented gives a reliable estimate of the relative performance of a considerable number of hybrids when grown in different areas of Iowa." -- p. [865]

Download or read book The 1945 Iowa Corn Yield Test written by Joseph Lee Robinson and published by . This book was released on 1946 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The 1946 Iowa Corn Yield Test written by Anna Margrethe Olsen and published by . This book was released on 1946 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A windbreak, as we generally think of it in Iowa, is a narrow belt of trees planted to give the farmstead protection against winter winds. Much of Iowa's land is relatively level to gently rolling. there is little native timber except along rivers and streams. This combination permits northwesterly winter winds to make a clean sweep across th eland. Something is needed to break their force." -- p. [921]

Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1944 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experiment Station Record written by U.S. Office of Experiment Stations and published by . This book was released on 1944 with total page 1158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maiz written by Elisa Ramírez Castañeda and published by IICA Biblioteca Venezuela. This book was released on 2001 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin P written by and published by . This book was released on 1954 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The 1951 Iowa Corn Yield Test written by Joseph Lee Robinson and published by . This book was released on 1952 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bulletin reports the results of the 1951 Iowa Corn Yield Test in which the performance of 261 different corn hybrids was compared. The state was divided into four sections, each of which was subdivided into three districts. A test field was planted in each district except district 10, where the prolonged wet spring forced us to abandon our planting plans. With the exception of district 10 in the southern section, each hybrid entry was tested in all three districts of a section. The map shows how we divided the state into sections and districts and the approximate location of the farms where the hybrids were compared. Any producer of hybrid corn seed was eligible to enter his corn in the test. Ten widely grown hybrids in each section also were entered by the Iowa Corn and Small Grain Growers Association. In the back of the bulletin you will find an index listing the hybrids tested in 1951. The index also lists the table numbers where the performance record of each entry is shown and indicates whether the hybrid is a single, three-way, double or multiple cross." -- foreword, p. [758]

Download or read book Early Iowa Corn Yield Tests and Related Later Programs written by Martin Luther Mosher and published by . This book was released on 1962 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin P new Series written by Iowa Agriculture and Home Economics Experiment Station and published by . This book was released on 1944 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Publications available in the Institute Library written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Herbage Abstracts written by and published by . This book was released on 1946 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliografia de Las Publicaciones Que Se Encuentran en la Biblioteca written by and published by IICA Biblioteca Venezuela. This book was released on with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Economics of Research and Innovation in Agriculture written by Petra Moser and published by University of Chicago Press. This book was released on 2021-10-08 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Feeding the world’s growing population is a critical policy challenge for the twenty-first century. With constraints on water, arable land, and other natural resources, agricultural innovation is a promising path to meeting the nutrient needs for future generations. At the same time, potential increases in the variability of the world’s climate may intensify the need for developing new crops that can tolerate extreme weather. Despite the key role for scientific breakthroughs, there is an active discussion on the returns to public and private spending in agricultural R&D, and many of the world’s wealthier countries have scaled back the share of GDP that they devote to agricultural R&D. Dwindling public support leaves universities, which historically have been a major source of agricultural innovation, increasingly dependent on industry funding, with uncertain effects on the nature and direction of agricultural research. All of these factors create an urgent need for systematic empirical evidence on the forces that drive research and innovation in agriculture. This book aims to provide such evidence through economic analyses of the sources of agricultural innovation, the challenges of measuring agricultural productivity, the role of universities and their interactions with industry, and emerging mechanisms that can fund agricultural R&D.

Download or read book Climate Vulnerability written by and published by Elsevier. This book was released on 2013-03-15 with total page 1086 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change has been the subject of thousands of books and magazines, scientific journals, and newspaper articles daily. It’s a subject that can be very political and emotional, often blurring the lines between fact and fiction. The vast majority of research, studies, projections and recommendations tend to focus on the human influence on climate change and global warming as the result of CO2 emissions, often to the exclusion of other threats that include population growth and the stress placed on energy sources due to emerging global affluence. Climate Vulnerability, Five Volume Set seeks to strip away the politics and emotion that surround climate change and will assess the broad range of threats using the bottom up approach—including CO2 emissions, population growth, emerging affluence, and many others—to our five most critical resources: water, food, ecosystems, energy, and human health. Inclusively determining what these threats are while seeking preventive measures and adaptations is at the heart of this unique reference work. Takes a Bottom-Up approach, addressing climate change and the threat to our key resources at the local level first and globally second, providing a more accurate and inclusive approach. Includes extensive cross-referencing, which is key to readers as new connections between factors can be discovered. Cuts across a number of disciplines and will appeal to Biological Science, Earth & Environmental Science, Ecology, and Social Science, comprehensively addressing climate change and other threats to our key resources from multiple perspectives