Barriers limiting efficient distribution and use of poultry litter on Mid-Atlantic croplands
Date
2022
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Publisher
University of Delaware
Abstract
The Delmarva (Delaware, eastern shore of Maryland, and eastern shore of Virginia) region has a rich history in the poultry industry and produces over 575 million broilers (chickens) annually (Delmarva Chicken Association, 2020). Litter (manure) is a byproduct of poultry production that is rich in nutrients and can serve as a valuable fertilizer for crop production; however, continuous historic application of litter has increased soil phosphorus (P) levels and can lead to nutrient runoff that pollutes water resources. Efficient use of litter is challenging due to logistical issues associated with its distribution. Transporting litter from areas with high soil test P levels to areas with low soil test P levels can benefit both agricultural production (by supplementing nutrient-deficient soil) and the environment (by reducing nutrient runoff). However, Delmarva farmers face numerous regulatory, supply, and logistical obstacles when it comes to accessing and using poultry litter. We partnered with the National Agricultural Statistics Services (NASS) to conduct a survey of regional crop farmers to determine their current use of poultry litter and to identify barriers they face when obtaining and applying poultry litter. Results suggest that a combination of poultry litter location, price, a crop operations’ own equipment and soil test P range, and availability of litter affect whether a farmer uses it or is interested in applying litter as a nutrient source. We also find that there is a lot of uncertainty surrounding poultry litter, as many crop farmers are unsure about 1) where they can purchase litter, 2) if they have the proper storage or equipment to apply it, or 3) if their fields are able to support the application of poultry litter. Identifying and understanding these complications can help policymakers better address challenges limiting the efficient distribution of poultry litter throughout the Delmarva and Pennsylvania regions.
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Keywords
Poultry litter