Download or read book Corn Fertilizer and Spacing Experiments written by D. A. Hinkle and published by . This book was released on 1961 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments involving varying plant populations and nitrogen levels were conducted at the Main Experiment Station during the years 1949 to 1957. From 1957 through 1959 fertilizer experiments using N, P, and K were conducted at various locations at the Main and Branch Experiment Stations. Conclusions drawn from these experiments are: 1. The optimum number of corn plants, when plant food is adequate, appears to lie between 12,000 and 16,000 plants per acre. 2. The optimum amount of nitrogen (with all other needed elements supplied in ample amounts) will depend upon the amount and rate of mineralization of soil organic matter. In these experiments 150 to 180 pounds gave the highest yields, but something less than this would probably give more return per dollar spent for nitrogen. 3. Good response to nitrogen was generally obtained on the bottomland and terrace soils of the state. When substantial response was obtained, the efficiency was near on bushel increase for each two pounds of nitrogen. 4. Limited, but statistically significant, response to phosphorus was obtained on Loring silt loam, a typical terrace soil. No response was obtained on Dundee, Tunica, or Portland, typical bottomland soils. 5. No significant yield response was obtained from potassium in any of the tests, although there was a slight tendency toward such a response in a few cases. 6. A combination of nitrogen, phosphorus, and potassium did not increase yields over nitrogen alone on the bottomland soils nor did it increase yields over the combination of nitrogen and phosphorus on the terrace soils. 7. Ear weight and number of ears per stalk decreased with increasing plant population. However, at a constant population ear weight and number of ears per stalk increased with increasing nitrogen application. Ear number was affected to a greater extent than ear weight. 8. Nitrogen was the only plant food elements that significantly affected ear weight and number of ears per stalk. 9. Nitrogen increased lodging while phosphorus and potassium had little or no effect on lodging.

Download or read book Corn Fertilizer and Spacing Tests 1948 to 1950 written by Dale Albert Hinkle and published by . This book was released on 1951 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen and Spacing Experiments with Corn written by O. H. Long and published by . This book was released on 1953 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agriculture written by and published by . This book was released on 1888 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Corn Fertilizer spacing variety Studies Near College Station 1949 51 written by Flake L. Fisher and published by . This book was released on 1953 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Experiments with Fertilizers written by and published by . This book was released on 1893 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Fertilizer and Spacing of Plants on the Yield of Corn at Kirbyville 1950 written by E. D. Cook and published by . This book was released on 1950 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fertilizer Experiments on Corn Culture Experiments on Corn Variety Tests of Corn written by Robert Jordan Redding and published by . This book was released on 1890 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Corn Experiments written by Melville Amasa Scovell and published by . This book was released on 1889 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spacing and Rates of Nitrogen For Corn written by C. E. Scarsbrook and published by . This book was released on 1966 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Close spacing and high rates of nitrogen are management practices that are essential for production of high yields of corn in Alabama. Since each of these practices affects value of the other, both must be followed for highest possible returns, as shown by results of experiments at several locations of Auburn University Agricultural Experiment Station System. Averages of data from 18 experiments show that 9-inch spacing in 42-inch rows (16,600 plants per acre) produced more corn than wider spacings tested. Since there is usually about 15 per cent loss of stand between planting and maturity, getting the correct population requires planting at 8 inches in 42-inch rows and at 9 inches in 36-inch rows. For most locations in Alabama, 90 to 120 pounds of nitrogen per acre in the recommemded rate, based on the experiments reported. In the Sand Mountain area, rates of 120 to 150 pounds are recommended. Choices of actual rate within the ranges suggested should be made on the basis of anticipated yield. When conditions are favorable for production to surpass 75 bushels per acre, the higher rates will usually be profitable.

Download or read book Cooperative Fertilizer Experiments with Corn 1908 1914 written by George Stronach Fraps and published by . This book was released on 1916 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Order in Yields from Fertilizer and Spacing in Corn Production written by Otis T. Osgood and published by . This book was released on 1954 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Spacing of Sweet Corn written by Desmond Daniel Dolan and published by . This book was released on 1952 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Co operative Fertilizer Experiments with Corn Cotton Rice Cauliflower Peanuts Onions Tomatoes and Potatoes 1908 9 10 written by George Stronach Fraps and published by . This book was released on 1911 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Planting Date Hybrid Row Spacing and Starter Fertilizer on Corn Growth and Development written by Philip Sheridan Ramsel and published by . This book was released on 2001 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This experiment was conducted during the 1999 and 2000 growing seasons at the Iowa State University Sorenson Farm located southwest of Ames, Iowa and at the Iowa State University North Central Research and Demonstration Farm located south of Kanawha, Iowa. The experimental design for both locations was a randomized complete block with a split-split-split plot design and three replications of each treatment. Treatments included three planting dates, three hybrids, two row spacings, and two fertility regimes. Whole plot treatment was planting date and split plot treatments were hybrid, row spacing, and fertility regime. Significant difference was found between row spacing treatments for yield with the June planting dates in 1999 with 38-cm row spacing yielding more than 76-cm row spacing. Significant difference was not found between row spacing treatments for yield at the other planting dates in 1999 or in 2000. As planting date was delayed, weight kernel−1 decreased at both locations in both years. Starter fertilizer produced significantly higher yields in 1999, with a cold and wet spring, but not in 2000 with a warm and dry spring. Producers should rely on calendar date recommendations in determining optimum planting date. Planting dates between late April to early May should result in maximum yields in most years. Starter fertilizer may provide benefits during a cold and wet spring as well in situations of a low soil test for P or K.

Download or read book Corn Culture written by Robert Jordan Redding and published by . This book was released on 1897 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Corn Experiments written by and published by . This book was released on 1891 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: