Download or read book Effect of Amount and Timing of Nitrogen Fertilization on the Yield and Protein Content of Four Soft Red Winter Wheat Cultivars written by Bahman Eghball and published by . This book was released on 1981 with total page 82 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 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Yields and Global Food Security written by Tony Fischer and published by . This book was released on 2014 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Timing and Placement Effects on Grain and Plant Nitrogen and Grain Yield in Hard Red Winter Wheat written by Mylen G. Bohle and published by . This book was released on 1989 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hard red winter wheat has the potential to be an alternative crop in the Pacific Northwest, however percent grain nitrogen has been unacceptably low and grain yields have been about only 80% of soft white winter wheat. During the late spring and the summer months there is usually little rainfall, therefore moisture and nitrogen needed for grain fill must be taken up from the subsoil. The interaction between rainfall distribution and available nitrogen and moisture at different depths in the soil during grain fill was thought to be the problem for low percent grain nitrogen in this mediterranean climate. Dryland field experiments were conducted with the hard red winter wheat cultivar Nanser' at the Sherman Branch Expeilment Station at Moro, north-central Oregon, during the crop years 1983 and 1984. Plots were fall-fertilized with 0 (low N) and 80 (high N) kg/ha of nitrogen fertilizer and 0 and 20 kg/ha of phosphorus fertilizer. At jointing and at anthesis, 0 and 20 kg/ha of nitrogen fertilizer were applied with water, to the 0, 60 and 120 cm soil depths to determine the effects upon percent grain nitrogen, grain yield, plant nitrogen yield and nitrogen harvest index (NHI) at harvest. The 80 kg/ha fall-applied N rate was the factor most responsible for increasing percent grain nitrogen and grain nitrogen yield. Grain yield was increased only in 1984. Under low N fertility conditions, percent grain nitrogen was increased by the 20 kg/ha N rate applied at anthesis in 1983. Grain yield was increased with the 20 kg/ha N rate applied at jointing, both years, and was limited if phosphorus fertilizer was not present with the anthesis timing in 1983. Grain nitrogen yield was increased by P fertilizer and the 20 N rate (regardless of timing) in 1983, and when N was applied at jointing in 1984. Under high N fertility conditions, 20 N rate applied at jointing increased percent grain N both years, and grain nitrogen yield in 1983. Grain yield was not increased. In general, percent grain N in the high N fertility plots and the 1984 low N fertility plots was positively correlated to the nitrogen yield of all the plant parts, except chaff in 1984. Percent grain N was negatively correlated to grain NHI under high N fertility conditions, but positively correlated under 1983 low N conditions. Percent grain N was positively correlated to most other plant parts' NHI under high N fertility conditions in 1983 and 1984 and 1984 low N fertility conditions. Under low N fertility conditions in 1983, percent grain N was positively correlated to grain NHI. Deep placement did not significantly increase percent grain N, grain yield or grain nitrogen yield. Under high N fertility conditions in 1984, more nitrogen remained in some of the straw plant parts at the 60 cm depth with the anthesis timing compared to jointing.
Download or read book Fertilizer Abstracts written by and published by . This book was released on 1978 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Accumulation and Distribution of Nitrogen in Four Winter Wheat Cultivars written by Geoffrey M. Heinrich and published by . This book was released on 1979 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1987-10 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Crops and Fertilizer on Soil Nitrogen Carbon and Water Content and on Succeeding Wheat Yields and Quality written by C. K. Mutchler and published by . This book was released on 1975 with total page 426 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 1992 with total page 1742 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 1950 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstracts for Dec. 1954- issued in the Agricultural Research Service's series ARS-41.
Download or read book Agronomy Journal written by and published by . This book was released on 1963 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international journal of agriculture and natural resource sciences.
Download or read book Principles of Seed Science and Technology written by Lawrence O. Copeland and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Fourth Edition of Principles of Seed Science and Technology, like the fIrst three editions, is written for the advanced undergraduate student or lay person who desires an introduction to the science and technology of seeds. The fIrst nine chapters present the seed as a biological system and cover its origin, development, composition, function (and sometimes nonfunction), performance and ultimate deterioration. The last nine chapters present the fundamentals of how seeds are produced, conditioned, evaluated and distributed in our modern agricultural society. Two new chapters have been added in this fourth edition, one on seed ecology and the second on seed drying. Finally, revisions have been made throughout to reflect changes that have occurred in the seed industry since publication of the Third Edition. Because of the fundamental importance of seeds to both agriculture and to all of society, we have taken great care to present the science and technology of seeds with the respect and feeling this study deserves. We hope that this feeling will be communicated to our readers. Furthermore, we have attempted to present information in a straight-forward, easy-ta-read manner that will be easily understood by students and lay persons alike. Special care has been taken to address both current state-of-the-art as well as future trends in seed technology.
Download or read book Bulletin written by and published by . This book was released on 1980 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fertilizers and Soil Amendments written by Roy H. Follett and published by Prentice Hall. This book was released on 1981 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil water Science Research in the Plant Science Department Annual Report written by and published by . This book was released on 2000 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil water Science Research in the Plant Science Department written by and published by . This book was released on 1994 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
