Effect of Late Applications of Nitrogen and Potassium on Potato Yields PDF Download
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Author: Emery Myers Emmert
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 32
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Book Description
Author: Emery Myers Emmert
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 32
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Book Description
Author: A. G. McKay
Publisher:
ISBN: 9781864235968
Category : Nitrogen fertilizers
Languages : en
Pages : 60
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Book Description
Author: Tarun Kumar Ghosh
Publisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 270
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Book Description
Author: Whitman Howard Jordan
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 32
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Book Description
Author: Brad Christopher Joern
Publisher:
ISBN:
Category : Crops and nitrogen
Languages : en
Pages : 280
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Book Description
Author: Kathryn Gause
Publisher:
ISBN:
Category : French fries
Languages : en
Pages : 0
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Book Description
Author: Clinton Cecil Jacks
Publisher:
ISBN:
Category : Potatoes
Languages : en
Pages : 112
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Book Description
The effects of irrigation frequencies and rates and time of nitrogen fertilizer application on the yields, grades and N status of Russet Burbank potatoes were determined on a sandy soil near Hermiston, Oregon. Increasing the frequency of irrigation from 72 to 48 to 12-hours did not result in increases of yields or improved grades of tubers during the growing season. Optimum yields and grades were obtained when 196 lbs. N/A was applied in a single fertilizer application with 88 lbs. N/A in the soil as nitrate-N. This N treatment corresponded to 0.58, 0.42, 0.46, 0.32 and 0.17 percent petiole nitrate-N on July 6, July 21, August 4, August 24 and September 9 sampling dates, respectively. Split N fertilizer applications resulted in higher petiole nitrate-N levels during the growing season, similar total yields and lower yields of U.S. No. 1 tubers than treatments in which all of the fertilizer was applied at planting. The higher petiole nitrate-N levels delayed tuber maturity and subsequently the split N applications were influenced by the high soil and air temperatures in July and August and formed increased yields of off-shape tubers. This emphasizes the importance of adequate N early in the growing season in order to prevent delayed vine and tuber growth and the importance of even assimilation of nutrients by the tubers in later stages of development.
Author: Jeremiah Wilson Sanborn
Publisher:
ISBN:
Category : Potatoes
Languages : en
Pages : 32
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Book Description
Author: A.J. Haverkort
Publisher: BRILL
ISBN: 9086865038
Category : Technology & Engineering
Languages : en
Pages : 359
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Book Description
Potato is very sensitive to water and nitrogen applied during growth, affecting its profitability and impact on the environment. Recent scientific and technical breakthroughs enable us to make best use of water and nitrogen. This book shows how scientific knowledge works in practice, now and well into the new millennium. This systematic and comprehensive book on crop, soil and water technologies will assist producers to achieve optimal production with maximum benefit to themselves and to the environment. Crucial questions, such as: - Which sampling techniques of plants and soil are available and which should I use? - What do the data gathered mean and how do they assist me in water and nitrogen application? - Which decision support systems exist for rain-fed, irrigated, precision or organic farming? are answered. The book updates and interprets knowledge in a simple, easily understandable way. It is intended for farmers, farmers' consultants, researchers and decision makers and is also recommended for students in soil science and agronomy.
Author: R. M. Samish
Publisher:
ISBN:
Category : Crops and soils
Languages : en
Pages : 424
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Book Description
