Author: Carl Emil NelsonPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 20
Book Description
Lodging of Field Corn as Affected by Cultivation, Plant Population, Nitrogen Fertilizer, and Irrigation Treatment at the Irrigation Experiment Station, Prosser, Wash (Classic Reprint)
Author: Carl E. NelsonPublisher: Forgotten Books
ISBN: 9780428802783
Category : Business & Economics
Languages : en
Pages : 28
Book Description
Excerpt from Lodging of Field Corn as Affected by Cultivation, Plant Population, Nitrogen Fertilizer, and Irrigation Treatment at the Irrigation Experiment Station, Prosser, Wash Lodging of field corn prior to harvest has become a serious problem in irrigated areas in central Washington since 1945. Lodging has been attributed to spindly stalks caused by greater plant populations per acre. The greater plant populations are the result of better stands from the use of seed treatments, control of soil pests, and higher seeding rates. The use of large quantities of commercial fertilizer also has been named as a contributory cause of lodging. At present, stands of plants per acre and applications of fertilizer contain ing 80 to 250 pounds of available nitrogen per acre are recommended practices for the growers in Washington State crop statistics in the Yakima Valley show yield increases of corn ranging from 20 to 40 percent during the 10-year period, 1946 - 56. Growers have reported that their fields often contain 50 to 60 percentage of lodged stalks. Mechanical harvesters cannot recover all the ears from lodged corn plants, thus resulting in a loss of grain to the farmer. N o lodging due to corn borer or lodging caused by stalk or root rots has been reported in irrigated fields of central Washington. The objectives of the studies on lodging of field corn were: (1) To determine the effects of cultivation, nitrogen fertilization, and plant population on yields and lodging of field corn; (2) to take certain plant measurements and to determine the force required to break the stalks mechanically at a certain stage of growth as a means of evaluating resistance to lodging; and (3) to determine the effects of certain irrigation treatments on lodging. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Lodging of Field Corn as Affected by Cultivation, Plant Population, Nitrogen Fertilizer, and Irrigation Treatment at the Irrigation Experiment Station, Prosser, Wash
Author: Carl Emil NelsonPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 20
Book Description
Lodging of Field Corn as Affected by Cultivation, Plant Population, Nitrogen Fertilizer, and Irrigation Treatment at Irrigation Experiment Station, Prosser, Wash
Author: Lodging of Field Corn As Affected by Cultivation, Plant Population, Nitrogen Fertilizer, and Irrigation Treatment at the Irrigation Treatment Station, Prosser, Wash
Author: United States. Department of AgriculturePublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Fertilizer Effects on Corn Production Under Irrigation at Oakes
Author: Armand BauerSome Effects of Irrigation, Nitrogen and Plant Population on Corn
Author: F. C. BoswellCorn Fertilizer and Spacing Experiments
Author: D. A. HinklePublisher:
ISBN:
Category : Corn
Languages : en
Pages : 34
Book Description
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.
Distribution of Soil Nitrate Nitrogen Following 4 Years Continuous Corn as Affected by Nitrogen Fertilizer Rates and Irrigation Treatments
Author: Albert E. LudwickPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 5
Book Description
Effects of Hybrid, Population Density and Nitrogen Level on Corn Forage Under Irrigation on Grenada Soil
Author: Effects of Fertilizers and Stand on Corn and of Stand on Soil Moisture
Author: Fred E. ShubeckPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 32
Book Description