DOI: 10.1016/j.crm.2016.09.001
Scopus记录号: 2-s2.0-85010955844
论文题名: Nitrogen application decision-making under climate risk in the U.S. Corn Belt
作者: Gramig B.M. ; Massey R. ; Yun S.D.
刊名: Climate Risk Management
ISSN: 22120963
出版年: 2017
卷: 15 起始页码: 82
结束页码: 89
语种: 英语
英文关键词: Corn
; Days suitable for fieldwork
; Economics
; Nitrogen fertilizer
; Side dress
; Split N
英文摘要: Nitrogen fertilizer is one of the most important inputs to corn production and farmers manage their crop by deciding how much to apply, when to apply it and how to apply it to maximize their yields and resulting profit. There is risk inherent in crop fertility management because once nitrogen is applied to the soil it is no longer immobile and cropland is subject to loss of this costly input under different weather conditions. Days suitable for field work, a farm's machinery set, and weather conditions determine when field preparation and planting activities are completed each year. This paper documents the methods and data used to evaluate the economic costs and benefits of the agronomic practice of “splitting” nitrogen fertilizer—applying some at or just before planting and a second application after the plant has already emerged and is in greatest need of nutrients. An example of how to use the free online decision support tool Corn Split NDST (splitn.agclimate4u.org) to evaluate the climate risk and economics of post-planting N applications is developed to illustrate the application of methods described. © 2016 The Author(s) Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/58959
Appears in Collections: 气候变化与战略
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作者单位: Department of Agricultural Economics, Purdue University, West LafayetteIN, United States; Department of Agricultural and Applied Economics, University of Missouri, Columbia, MO, United States; Yale School of Forestry and Environmental Studies, Yale University, New Haven, CT, United States
Recommended Citation:
Gramig B.M.,Massey R.,Yun S.D.. Nitrogen application decision-making under climate risk in the U.S. Corn Belt[J]. Climate Risk Management,2017-01-01,15