Download or read book Investigations on Footrot of Winter Wheat Caused by Cercosporella Herpotrichoides Fron written by Lester Emert Dickens and published by . This book was released on 1957 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Plant Disease Bulletin written by and published by . This book was released on 1954 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Plant Disease Reporter written by and published by . This book was released on 1974 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Climatological Factors in the Development of Cercosporella Foot Rot of Winter Wheat written by Roderick Sprague and published by . This book was released on 1937 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eyespot Footrot of Winter Wheat Caused by Cercosporella Herpotrichoides written by Lester E. Dickens and published by . This book was released on 1964 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Farm Radio Briefs written by and published by . This book was released on 1954 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agriculture in Dry Lands written by I. Arnon and published by Elsevier. This book was released on 2012-12-02 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout history, man has, by over-use, consistently reduced the productive capacity of dry lands. This degradation of one-third of the land area of the globe is, unfortunately, increasing. In recent years, world interest has turned to the problems of pollution of the environment and the impending food shortage as world population grows explosively. Thus the attention of international and other agricultural bodies has turned to the need for preserving and developing more effectively the agricultural potential of these areas.This book provides a comprehensive review of present knowledge of the agriculture of dry lands, with special emphasis on measures for conserving their natural resources. Management practices are described which aim at optimizing productivity of rainfed and irrigated agriculture without adverse effects on sustainability. Land use in the dry regions, and its evolution throughout history is described and analysed, and the lessons to be learnt from destructive technologies are stressed. In particular, current proposals for an alternative agriculture are discussed and their justification is questioned. This is a generalist work, which specialists can also find interesting, not only in their own discipline but as a concise way of acquainting themselves with the state-of-the-art in associated fields. Increasing specialisation with each discipline using its own vocabulary leads inevitably to communication problems, and the need for multi-disciplinary teams makes inter-discipline communication indispensible.

Download or read book Advances in Soil Science written by and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the beginning of agriculture until about 1950, increased food production came almost entirely from expanding the cropland base. Since 1950, however, the yield per unit of land area for major crops has increased dramatically. Much of the increase in yields was because of increased inputs of energy. Between 1950 and 1985, the farm tractor fleet quadrupled, world irrigated area tripled, and use of fertilizer increased ninefold. Between 1950 and 1985, the total energy used in world agriculture increased 6. 9 times. Irrigation played a particularly important role in the rapid increase in food production between 1950 and 1985. The world's irrigated land in 1950 totaled 94 million hectares but increased to 140 million by 1960, to 198 million by 1970, and to 271 million hectares in 1985. However, the current rate of expansion has slowed to less than 1 % per year. The world population continues to increase and agricultural production by the year 2000 will have to be 50 to 60% greater than in 1980 to meet demands. This continued demand for food and fiber, coupled with the sharp decline in the growth rate of irrigation development, means that much of the additional agricultural production in future years must come from cultivated land that is not irrigated. Agricultural production will be expanded in the arid and semiarid regions because these regions make up vast areas in developing countries where populations are rapidly rising.

Download or read book Federal Register written by and published by . This book was released on 1983-11 with total page 1420 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 1935 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New York Legislative Documents written by New York (State). Legislature and published by . This book was released on 1959 with total page 1518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station written by New York State College of Agriculture and published by . This book was released on 1962 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the New York State College of Agriculture and Life Sciences at Cornell University the Cornell University Agricultural Experiment Station written by New York State College of Agriculture and published by . This book was released on 1950 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1935 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science Bulletin written by and published by . This book was released on 1951 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1972 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of the Public Documents of the Congress and of All Departments of the Government of the United States for the Period from to written by United States. Superintendent of Documents and published by . This book was released on with total page 3208 pages. Available in PDF, EPUB and Kindle. Book excerpt: