Author: Brock Jordan Leonard
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Yield improvements over the past few decades have been attributed to increasing optimum plant population and not the increase of grain produced per plant. A goal in precision agriculture is to identify seeding rates that optimize yield, but that also minimize competition. Competition occurs when plants of the same species compete for vital resources needed for plant growth and fruit development. The objective of this research is to examine corn development and physiological responses across the growing season of multiple hybrids at a range of seeding rates. We implemented a measurement protocol in a field - scale strip - trial design at multiple locations in the Central Claypan Areas of Northeast Missouri Study 1. A randomized complete block design study planted at Bradford Research and Extension center in Columbia MO Study 2. The design of the experiments on Study 1 included four different hybrids at three different seeding rates: 74,000, 84,000, and 94,000 seeds ha - 1 . Hybrids were chosen with maturity dates ranging from 103 - 112 days to maturity. For Study 2 an additional four seeding rates were planted at 44,000, 54,000, 64,000, and 104,000 seed ha - 1. In sub plots an intensive set of physiological and morphological measurements were taken throughout the season. Competition can lead to greater per - plant variability for different responses some playing a vital role in grain yield, biomass, and harvest index. With greater understanding of how corn hybrids respond to increased intra - specific competition, better seeding rate recommendations can be made to optimize grain yield on varying soils in Mid - Missouri.
Corn Physiology and Yield Response to Hybrid and Seeding Rate on Claypan Soils
Author: Brock Jordan Leonard
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Yield improvements over the past few decades have been attributed to increasing optimum plant population and not the increase of grain produced per plant. A goal in precision agriculture is to identify seeding rates that optimize yield, but that also minimize competition. Competition occurs when plants of the same species compete for vital resources needed for plant growth and fruit development. The objective of this research is to examine corn development and physiological responses across the growing season of multiple hybrids at a range of seeding rates. We implemented a measurement protocol in a field - scale strip - trial design at multiple locations in the Central Claypan Areas of Northeast Missouri Study 1. A randomized complete block design study planted at Bradford Research and Extension center in Columbia MO Study 2. The design of the experiments on Study 1 included four different hybrids at three different seeding rates: 74,000, 84,000, and 94,000 seeds ha - 1 . Hybrids were chosen with maturity dates ranging from 103 - 112 days to maturity. For Study 2 an additional four seeding rates were planted at 44,000, 54,000, 64,000, and 104,000 seed ha - 1. In sub plots an intensive set of physiological and morphological measurements were taken throughout the season. Competition can lead to greater per - plant variability for different responses some playing a vital role in grain yield, biomass, and harvest index. With greater understanding of how corn hybrids respond to increased intra - specific competition, better seeding rate recommendations can be made to optimize grain yield on varying soils in Mid - Missouri.
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Yield improvements over the past few decades have been attributed to increasing optimum plant population and not the increase of grain produced per plant. A goal in precision agriculture is to identify seeding rates that optimize yield, but that also minimize competition. Competition occurs when plants of the same species compete for vital resources needed for plant growth and fruit development. The objective of this research is to examine corn development and physiological responses across the growing season of multiple hybrids at a range of seeding rates. We implemented a measurement protocol in a field - scale strip - trial design at multiple locations in the Central Claypan Areas of Northeast Missouri Study 1. A randomized complete block design study planted at Bradford Research and Extension center in Columbia MO Study 2. The design of the experiments on Study 1 included four different hybrids at three different seeding rates: 74,000, 84,000, and 94,000 seeds ha - 1 . Hybrids were chosen with maturity dates ranging from 103 - 112 days to maturity. For Study 2 an additional four seeding rates were planted at 44,000, 54,000, 64,000, and 104,000 seed ha - 1. In sub plots an intensive set of physiological and morphological measurements were taken throughout the season. Competition can lead to greater per - plant variability for different responses some playing a vital role in grain yield, biomass, and harvest index. With greater understanding of how corn hybrids respond to increased intra - specific competition, better seeding rate recommendations can be made to optimize grain yield on varying soils in Mid - Missouri.
Growth, Tissue-N Content, and Yield Response of Corn Hybrids to Nitrogen Fertilization in a Range of Environments
Author: Sudirman Yahya
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 560
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 560
Book Description
Growth and Yield Response of Corn Hybrids (Zea Mays L.) to Straw Mulch and Plant Population
Author: Ali M. Al-Darby
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 198
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 198
Book Description
Effect of First Generation Hybrids Upon Yields of Corn
Author: Lawrence Root Waldron
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 24
Book Description
Yield Response from Planting Alternating Rows of Short and Long Season Corn (Zea Mays L.) Hybrid
Author: William Duane Butler
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 56
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 56
Book Description
Soil Properties and Corn Yield Response in the Management of an Integrated Crop-livestock System
Author: Matthew W. Maughan
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
Book Description
Yield Response of Corn in a Planosol Soil to Subsurface Drainage with Variable Tile Spacings
Author: Craig Eugene Beer
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 12
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 12
Book Description
Corn Yield Response to Tillage, Hybrids, and Insecticides
Author: José Rafael Espaillat
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 28
Book Description
Agrindex
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 820
Book Description
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 820
Book Description
Plant Population and Row Spacing Influence Maximum Corn Yield
Author: F. D. Whitaker
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 30
Book Description
A study was conducted in 1965 and 1966 on a fertile Sharon silt loam near Elsberry. Missouri, to determine the maximum yield response of corn for different levels of plant population and now widths, using two hybrids. Adequate fertilizer and irrigation were applied as needed to limit the study to the above variabels. Analysis of corn leaf and whose-plant samples showed that plant nutrition was nor a variable. Adequate soil water was maintained so that the plants were nor under severe water stress after the seedling stage. Other climatic conditions such as cold, wer periods during the early growing season and above-average temperatures during silking and ear-shoot formation limited the yields to below the maximum potential for this area. It is believed, however, that the differences in yield response to the various treatments are representative. Average grain yields from the Pionner 321 hybrid corn were highest from the 24,000- and 20,000- plants populations and 30-inch row widths. The average yields for the 2 years was 159 bushels per acre both populations.(...).
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 30
Book Description
A study was conducted in 1965 and 1966 on a fertile Sharon silt loam near Elsberry. Missouri, to determine the maximum yield response of corn for different levels of plant population and now widths, using two hybrids. Adequate fertilizer and irrigation were applied as needed to limit the study to the above variabels. Analysis of corn leaf and whose-plant samples showed that plant nutrition was nor a variable. Adequate soil water was maintained so that the plants were nor under severe water stress after the seedling stage. Other climatic conditions such as cold, wer periods during the early growing season and above-average temperatures during silking and ear-shoot formation limited the yields to below the maximum potential for this area. It is believed, however, that the differences in yield response to the various treatments are representative. Average grain yields from the Pionner 321 hybrid corn were highest from the 24,000- and 20,000- plants populations and 30-inch row widths. The average yields for the 2 years was 159 bushels per acre both populations.(...).