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Author: Perrin Holmes Grissom
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 2
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Book Description
Author: Perrin Holmes Grissom
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 2
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Book Description
Author: Ernest Leslie Clawson
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Ultra-narrow row (UNR) cotton (Gossypium hirsutum L.) is a production system using high plant populations in reduced row spacings. The responses of this production system to nitrogen fertilizer have not been fully investigated. Evaluations of yield and earliness of harvest are also important. A three-year study was conducted at the Texas Agricultural Experiment Station farm, Burleson County, TX, on a Ships clay (very-fine, mixed, active, thermic Chromic Hapluderts) and a Weswood silty clay loam (fine-silty, mixed, superactive, thermic Udifluventic Haplustepts). A split plot design was used. Nitrogen fertilizer rates of 0, 50, 101, and 151 kg N ha−1 were applied as the whole plots and row spacings of 19, 38, and 76 cm were established as the split plots. Data included lint yield and yield components, as well as earliness of crop maturity and earliness-related parameters such as boll distribution. Lint yield was increased by higher nitrogen rate. There was no nitrogen rate by row spacing interaction on lint yield, implying fertilizer rates do not need to be changed for UNR systems. Reductions in row spacing did not significantly affect lint yield in any year. Responses such as reduced bolls per plant, increased plant populations, increased ginout, and decreased boll size were often significant and combined to allow the crop to maintain equivalent yields as row spacings were reduced. The slight UNR earliness advantages were probably due to changes in boll distribution. Based on these results, increases in lint yield and earliness may not reliably contribute to the profitability of UNR cotton.
Author: Noell Kent Rogers
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 170
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 28
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Book Description
Author: S. Johnson Hake
Publisher: University of California, Agriculture and Natural Resources
ISBN: 9781879906099
Category : Technology & Engineering
Languages : en
Pages : 430
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Book Description
The Cotton Production Manual was written for growers everywhere who strive to improve cotton quality and productivity. Features a season-by season production calendar with pest and disease control, fertilization, and irrigation tips and a Diagnostic Guide to help you identify crop problems in the field with management options. 12 pages of color plates.
Author:
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Category :
Languages : en
Pages :
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Abstract HAMM, GARY STEPHEN. Agronomics of Cotton Grown on a 38-cm Row Spacing in North Carolina (Under the direction of Dr. Keith Edmisten). Cotton (Gossypium hirsutum) planted in a 38-cm row configuration is an innovative idea that has come about in the past few years. There has been some interest in narrow-row cotton due to the availability of a new harvester capable of harvesting cotton on 38-cm rows. Producers have raised questions regarding changing their cotton production strategies in order to maximize yield potential for cotton grown on 38-cm rows. Agronomic practices that allow for maximum yield potential have yet to be determined for narrow-row cotton. Four separate field experiments were conducted in 2005, 2006 and 2007 at Upper Coastal Plains Research Station, near Rocky Mount, NC, Central Crops Research Station, Clayton, NC, and Duplin County, NC in order to define these agronomic practices. Cotton was planted on 38-cm row spacings using a vacuum planter. One experiment was conducted to observe the effects of seven nitrogen rates ranging from 0-196 kg N ha-1 on yield potential, plant uptake of nitrogen, growth habits, fiber quality, and economic returns of narrow-row cotton. The second experiment was conducted to look at the effects of fourteen different application methods on plant height control, yield, and fiber quality. The strategies consisted of making applications to narrow-row cotton at certain growth stages with different rates of mepiquat pentaborate. The third experiment consisted of making a herbicidal defoliation application to narrow-cotton at six different percent open boll stages ranging from 0-100 % open bolls to determine yield and fiber quality parameters. The fourth experiment was conducted to determine if narrow-row cotton could be planted in a double crop situation with wheat which is an uncommon practice in NC. For this experiment, narrow-row cotton was planted in comparison with wide-row cotton for yield and economic potential a.
Author: Stephen Esah Koli
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
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Book Description
Author: Gary Stephen Hamm
Publisher:
ISBN:
Category :
Languages : en
Pages : 109
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Book Description
Keywords: planting date, double crop, defoliation, plant growth regulator, nitrogen, 38-cm, cotton, narrow-row.
Author: S. E. Koll
Publisher:
ISBN:
Category :
Languages : en
Pages : 76
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Book Description
Spacing,effects; Plant population effects; Nitrogen effect; Field plat technique; Plant analyses Characteristics measured; Plant Characteristcs; Observation trial- 1975; Additional experimentation in 1974.
Author: James McD. Stewart
Publisher: Springer Science & Business Media
ISBN: 9048131952
Category : Science
Languages : en
Pages : 573
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Book Description
Cotton production today is not to be undertaken frivolously if one expects to profit by its production. If cotton production is to be sustainable and produced profitably, it is essential to be knowledgeable about the growth and development of the cotton plant and in the adaptation of cultivars to the region as well as the technology available. In addition, those individuals involved in growing cotton should be familiar with the use of management aids to know the most profitable time to irrigate, apply plant growth regulators, herbicides, foliar fertilizers, insecticides, defoliants, etc. The chapters in this book were assembled to provide those dealing with the production of cotton with the basic knowledge of the physiology of the plant required to manage the cotton crop in a profitable manner.
