Download or read book Effect of Cultivar and Seed Source on Soybean Emergence at Different Planting Dates written by Pei-Chung F. Yi and published by . This book was released on 1982 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Planting Date Cultivar and Seed Size on Emergence Leaf Area Development and Growth of Soybeans written by Rolf Lynn Wells and published by . This book was released on 1977 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Cultivar Seed Size Temperature and Planting Date on Emergence and Development of Soybeans Glycine Max L Merril written by James Robert Martin and published by . This book was released on 1976 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Planting Date and Spacing Between Rows on Yield and Yield Components of Six Soybean Glycine Max L Merr Cultivars Grown in 1973 at the University of Wisconsin Rieder Farm written by Mehmet Ozel Ergen and published by . This book was released on 1974 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Row Spacing and Planting Date Effect on Yield and Growth Responses of Soybeans written by D. J. Boquet and published by . This book was released on 1983 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Planting Date and Varietal Effects on Agronomic and Seed Compositional Characters of Soybeans written by Robert Cecil Leffel and published by . This book was released on 1961 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Seeding Rates and Planting Dates on Emergence Growth and Yield of the Soybean Cultivar Essex written by Mohammed Lamin Tarawally and published by . This book was released on 1982 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harvest Date Tillage and Other Agronomic Management Effects on Yield and Seed Quality of Solid seeded Soybean written by Brent Douglas Philbrook and published by . This book was released on 1988 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soybean written by Minobu Kasai and published by BoD – Books on Demand. This book was released on 2019-02-20 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants are important for a permanent ecosystem, because in the ecological pyramid plants support all the other living organisms at the base. Very important organization is thought to be the integral process of resource, transport, partitioning, metabolism, and production, which involves yield, biomass, and productivity in plants. Accordingly, it is important to obtain more information about the knowledge concerning yield, biomass, and productivity in plants. Soybean is one of the main crops largely contributing to our life, which is thought to be connected to our ecosystem through the above-mentioned integral process. This book focuses on the soybean, and reviews and research concerning the yield, biomass, and productivity of soybean are presented herein. This text updates the book published in 2017. Although there are many difficulties, the main aim of this book is to present a basis for the above-mentioned integral processes of resource, transport, partitioning, metabolism, and production, which involves yield, biomass, and productivity in plants (soybean), and to understand what supports this basis and the integral process. It is hoped that this and the preceding book will be essential reads.
Download or read book The Effect of Planting Dates and Row Spacings on Seed Yield and Agronomic Traits of Four Soybean Cultivars written by Tadesse Mebrahtu and published by . This book was released on 1980 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In field Variation for Soybean Emergence and Development written by Travis C. Belt and published by . This book was released on 2004 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to evaluate the effects of soil and landscape characteristics on soybean [Glycine max (L.) Merr.] emergence, development, and yield. Effects of soil and landscape characteristics, as measured by EC a and DEM data, on soybean emergence and yield as well as soybean NDVI, as measured by a multispectral radiometer, were measured near Columbia, MO in 2001 and 2002. Two planting dates and seeds treated with or without a fungicide were used in an attempt to provide variation for soil temperature, moisture, and disease pressure during emergence. Early planting dates delayed emergence and decreased emergence percentage in both years. Lower initial populations for the early planting dates also resulted in lower NDVI readings, shorter heights at R7, and greater change and relative change of NDVI. Only when planting date drastically affected emergence percentage did planting date affect yield. The seed treatment with a fungicide increased both emergence percentage and yield but only for the 4 May 2002 planting date. Forward stepwise linear regression analyses produced several significant models using EC a and DEMs, but were quite variable and differed depending on weather conditions associated with planting dates and years. (Abstract shortened by UMI.).
Download or read book Effects of Planting Date and Tillage Method on Soybean Varieties from Four Maturity Groups written by Carl H. Hovermale and published by . This book was released on 1992 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soybean Planting Date and Seeding Rate Effects on Stand Loss Grain Yield Agronomic Optimum Seeding Rate Partial Net Economic Return and Seed Quality written by Fabiano Colet and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planting soybean early (late April through early May) is recommended to achieve high grain yields. However, unfavorable conditions can limit farmers’ ability to plant during the recommended period, and thus, an increase in the seeding rate may be necessary. Also, weather conditions can affect seed quality, and choosing an adequate planting date can mitigate the impacts of unfavorable weather on the seed. Thus, the objectives of this study were to (1) measure the effect of planting date and seeding rate on stand loss over the growing season, (2) measure the effect of soybean seeding rate and planting date on grain yield, (3) identify the agronomic optimum soybean seeding rate (AOSR) and the partial economic return for the lowest and highest soybean price, and (4) measure the effect of soybean planting date and seeding rate on harvested seed mass, seed germination, and seedling vigor. For these objectives, a field study was conducted for two growing seasons at two locations in Ohio: Western (WARS) and Northwest (NWARS) Agricultural Research Stations. The experimental design used was a split-plot randomized complete block with four replications. The main plot factor was four planting dates ranging from 25 April through 10 July, and the split-plot factor was five seeding rates ranging from 123,500 to 618,000 seeds ha-1. At WARS-2020, planting soybeans in April through early June had a similar grain yield (5,090-5,285 kg ha-1), while there was a reduction in grain yield when soybean was planted in late June (4,216 kg ha-1). In contrast, in WARS-2021, planting dates did not statically influence grain yield. At NWARS-2020, a small amount of rainfall during the pod-setting growth stages (R3-R4 stages) impacted and reduced the grain yield for soybeans planted in April (3,113 kg ha-1) and May (2,909 kg ha-1) when compared to soybean planted on early-June (3,595 kg ha-1). The AOSR changed among site-years. For soybean grown under normal weather conditions, the AOSR needed to be increased as planting was delayed to achieve the highest grain yield. The planting date factor also impacted soybean seed quality. The germination rate in all site-years was above 94%; however, soybean planted in early June had the lowest seedling vigor results (64 to 81%) compared to other planting dates (80 to 89%) in both locations. These findings can help growers improve grain yield, increase economic return, and produce high-quality seeds.
Download or read book The Effect of Date of Planting and Row Spacing on Yield and Other Agronomic Characters of Four Soybean Glycine Max L Varieties of Different Maturity Classification written by Jack W. King (Jr.) and published by . This book was released on 1975 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Soybean Glycine Max Planting Dates and Plant Densities in Northern Growing Regions of the Northern Great Plains written by Cassandra Tkachuk and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean (Glycine max L. Merr.) planting date and plant density are agronomic decisions made simultaneously at the beginning of the growing season that can be used to maximize yield and economic return. Research on these basic soybean agronomic decisions must be conducted to support the expansion of soybean production in northern growing regions of the Northern Great Plains (NGP). The objectives of this study were to evaluate the effects of planting dates based on soil temperature on soybean emergence, maturity, and yield for short and long season varieties in Manitoba, and to determine optimum soybean plant density for early to very late planting dates in northern growing regions of the NGP. In the first experiment, calendar date had a greater influence than soil temperature at planting on soybean yield. Soybean yield declined with later planting rather than increasing soil temperature at planting. The earliest planting dates resulted in the greatest soybean yields. In the second experiment, soybean yield-density relationships were responsive to planting date. Yield-density relationships formed early/mid (May 4 to 26) and late/very late (June 2 to 23) planting date groups for combined site years. Early/mid planting dates resulted in greater maximum yields. According to the yield-density model, true yield maximization did not occur for any planting dates and site years within the range of plant densities tested in this field study. Soybean economic optimum seed densities (EOSDs) were much lower than predicted plant densities that maximized yield. Soybean EOSDs were identified as 492,000 and 314,000 seeds ha-1 by marginal cost analysis for early/mid and late/very late planting, respectfully. These values were sensitive to changes in soybean grain price and seed cost. Thus, growers need to adjust EOSDs for changes in price and cost. A combined analysis of soybean yields from both experiments using similar target plant densities determined that a significant negative linear relationship existed between soybean yield and planting date. The greatest soybean yields resulted from early planting and declined by 16 kg ha-1 for each one-day delay in planting from Apr 27 to June 16. However, yield responses varied among site years. The overall recommendation from this study would be to plant soybeans during the month of May at a profit-maximizing seed density, accounting for fluctuating grain price and seed cost.
Download or read book Selection and Genetic Studies of Low Temperature Germination in Cultivar by Plant Introduction Soybean Crosses written by Erich E. Veitenheimer and published by . This book was released on 1985 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Early Versus Normal Field Planting of Soybean Lines Selected for Low Temperature Germination Response written by Young-hyun Hwang and published by . This book was released on 1979 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
