Economic Analysis of Reduced Tillage Wheat and Grain Sorghum Rotations in Western Kansas PDF Download
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Author:
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Category : Conservation tillage
Languages : en
Pages : 28
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Author:
Publisher:
ISBN:
Category : Conservation tillage
Languages : en
Pages : 28
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Author: Ole S. Johnson
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Category : Conservation tillage
Languages : en
Pages : 346
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Author: Richard V. Llewelyn
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Category :
Languages : en
Pages : 378
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Author:
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Category : Conservation tillage
Languages : en
Pages : 36
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Author: Thomas W. Roth
Publisher:
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Category :
Languages : en
Pages : 362
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Author: Matthew J. Pachta
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Category :
Languages : en
Pages :
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This study examines the economic profitability of reduced-tillage and no-tillage systems for corn, soybeans, and grain sorghum production in annual rotation with winter wheat, and monoculture wheat and grain sorghum in south-central Kansas. Net returns to land and management per acre for each of 13 production systems are calculated several different ways. Net returns are calculated using the 10-year average yield for each crop, the average crop price from 2009, and 2009 input prices. A distribution of net returns is also calculated using the actual historical yields and crop prices from 1997 to 2006 and 2009 input prices. This process is repeated, except average crop prices from 2006, 2007, 2008 and 2009 are now used. Finally, net returns are calculated using simulated yield and price distributions based on actual historical yields, four historical monthly price series, and 2009 input costs. Overall, the reduced-tillage wheat-soybean systems (RTWS) have the greatest net returns for each of the net return distributions. No-tillage wheat-soybean (NTWS) generally has the second highest net returns. Stochastic Efficiency with Respect to a Function (SERF) is used to determine the preferred management strategies under various risk preferences. SERF analysis indicates that RTWS is the system most preferred by all producers, regardless of their level of risk aversion. NTWS is typically the second most preferred system to RTWS. Using historical annual prices for 1997 to 2006 and the simulated monthly prices series for 2006 to 2009 and 2007 to 2009 to calculate the net return distributions, managers with higher levels of risk aversion prefer reduced-tillage wheat-grain sorghum (RTWG) over no-tillage wheat-soybean (NTWS). Sensitivity analysis shows that as the price of glyphosate falls, no-till systems become relatively more profitable. SERF analysis using the historic yields, 2006 to 2009 simulated monthly prices, and 2009 input costs with reduced glyphosate prices indicate that NTWS would be the system most preferred by producers at all levels of risk aversion. RTWS closely follows NTWS as the next preferred system with those conditions also for all levels of risk aversion.
Author: Chris L. Mikesell
Publisher:
ISBN:
Category :
Languages : en
Pages : 286
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Author: Jayne T. MacLean
Publisher:
ISBN:
Category : Conservation tillage
Languages : en
Pages : 44
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Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1461573882
Category : Science
Languages : en
Pages : 414
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Masters Theses in the Pure and Applied Sciences was first conceived, published, SIld disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna and broader dissemination. tional publishing house to assure improved service Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 30 (thesis year 1985) a total of 12,400 theses titles from 26 Canadian and 186 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work.
Author: John M. Kimble
Publisher: CRC Press
ISBN: 1420044095
Category : Nature
Languages : en
Pages : 280
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Better Manage Soil C for Improved Soil Quality In the United States, soil has fueled the availability of abundant, safe food, thus underpinning economic growth and development. In the future we need to be more vigilant in managing and renewing this precious resource by replacing the nutrients and life-sustaining matter that we remove for
