[PDF] Corn And Grain Sorghum Yield And Water Use In Response To Limited Irrigation eBook

Author : Yared Assefa
Publisher : Academic Press
Page : 125 pages
File Size : 11,29 MB
Release : 2013-12-16
Category : Technology & Engineering
ISBN : 0128003952

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Corn and grain sorghum (Sorghum bicolor subsp. bicolor L) are among the top cereal crops world wide, and both are key for global food security. Similarities between the two crops, particularly their adaptation for warm-season grain production, pose an opportunity for comparisons to inform appropriate cropping decisions. This book provides a comprehensive review of the similarities and differences between corn and grain sorghum. It compares corn and sorghum crops in areas such as morphology, physiology, phenology, yield, resource use and efficiency, and impact of both crops in different cropping systems. Producers, researchers and extension agents in search of reliable scientific information will find this in-depth comparison of crops with potential fit in dryland and irrigations cropping systems particularly valuable. Presents a wide range of points of comparison Offers important insights for crop decision making

Author : Jason Waite
Publisher :
Page : pages
File Size : 50,33 MB
Release : 2016
Category :
ISBN :

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The Ogallala Aquifer is a large underground water source located under the High Plains and is used as the primary irrigation source for producers in the region. Hyper-extraction of the Ogallala is causing a reduction in irrigation capacity for a large part of the region. Confined animal feeding operations in western Kansas rely upon irrigated crops, mainly corn [Zea mays (L.)] as a source of feed. Research has shown that forage sorghum [Sorghum bicolor (L.) Monech] could meet the demands of the confined animal feeding operations while using less water than corn. An experiment was designed to evaluate corn and forage sorghum in Western Kansas. The objective of this research was to evaluate the water use and growth characteristics of irrigated and dryland corn and forage sorghum. Field experiments were conducted at two locations (Tribune Experiment Station, Tribune and a cooperator's field near Hoxie, Sheridan County Kansas) in 2011-2013. The experimental design at Tribune was a randomized complete block with four replications. A traditional replicated design was not possible at Hoxie. Multiple subsamples per plot were obtained and data are reported as means with standard errors. Corn and forage sorghum were grown under both dryland and fully irrigated conditions at both locations. Neutron access tubes were installed to monitor soil water. Aboveground biomass, intercepted solar radiation and volumetric soil water content were recorded at 5 sampling dates each growing season. Water use was similar between irrigated corn and forage sorghum. There were differences in biomass from year to year between the irrigated crops. Dryland water use was similar between the two crops and also had differences in biomass from year to year. Yields were significantly lower than average for all crops in 2012 due to drought conditions. Solar radiation interception correlated with aboveground biomass measurements. Aboveground biomass from the forage sorghum and corn was ensiled both years and analyzed for nutrient composition. This research suggests that forage sorghum silage may be an acceptable replacement for corn silage in areas with reduced irrigation capacities.

Author : Ignacio A. Ciampitti
Publisher : John Wiley & Sons
Page : 528 pages
File Size : 42,15 MB
Release : 2020-01-22
Category : Technology & Engineering
ISBN : 0891186271

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Sorghum is among the top five cereals and one of the key crops in global food security efforts. Sorghum is a resilient crop under high-stress environments, ensuring productivity and access to food when other crops fail. Scientists see the potential of sorghum as a main staple food in a future challenged by climate change. The contributors provide a comprehensive review of sorghum knowledge. The discussion covers genetic improvements, development of new hybrids, biotechnology, and physiological modifications. Production topics include water and nutrient management, rotations, and pest control. Final end uses, sorghum as a bioenergy crop, markets, and the future of sorghum are presented. IN PRESS! This book is being published according to the “Just Published” model, with more chapters to be published online as they are completed.

Author : D. G. Cummins
Publisher :
Page : 12 pages
File Size : 18,89 MB
Release : 1980
Category : Corn
ISBN :

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Both corn and sorghum yields were increased by irrigation, but corn yields were 36% (ranged from 10 to 81%) higher when irrigaterd, compared to 24% (ranged from 10 to 53%) for sorghum. Apparent differences in ear or head, leaf, stalk, and in vitro dry matter digestibility (IVDMD) levels due to irrigation were somewhat small in both corn and sorghum. Dry forage yields increased with maturity in both corn and sorghum. In some cases irrigation hastened the time of maximum dry matter yields in corn but not in sorghum. There was a little evidence in both corn and sorghum that irrigation will maintain IVDMD at higher levels than monirrigated corn and sorghum later in maturity. Irrigation increased apparent forage yields for corn and sorghum most when drought occurred during midseason. Yield increase was slightly less when water was applied during early season drought, and least during late season drought. As was shown in the overall irrigation response, sorghum did not respond as much as corn did to irrigation during the various drought periods.