DOI: 10.1016/j.still.2019.104446
论文题名: Liming potential of poultry litter in a long-term tillage comparison study
作者: Mowrer J. ; Endale D.M. ; Schomberg H.H. ; Norris S.E. ; Woodroof R.H.
刊名: Soil and Tillage Research
ISSN: 1671987
出版年: 2020
卷: 196 语种: 英语
英文关键词: Cropping system
; Soil acidity
; Soil productivity
Scopus关键词: Animals
; Buffer storage
; Calcite
; Calcium carbonate
; Cotton
; Crops
; Fertilizers
; Food supply
; Lime
; Manures
; Organic carbon
; Conventional tillage
; Cotton (Gossypium hirsutum L.)
; Cropping systems
; Fertilizer sources
; Soil acidity
; Soil organic carbon
; Soil productivity
; Split plot designs
; Soils
; acidity
; comparative study
; cotton
; crop production
; cropping practice
; fertilizer application
; liming
; litter
; long-term change
; maize
; tillage
; wheat
; zero tillage
; Animalia
; Gossypium hirsutum
; Panicum miliaceum
; Secale cereale
; Triticum aestivum
; Zea mays
英文摘要: Soil acidity is a constraint to global soil and food security, yet access to limestone to correct this problem is limited in many parts of the world. Research suggests that animal manures have a liming effect on acidified soils, representing a potential solution. This long-term (15 year) study used a split plot design to evaluate the effect of conventional tillage (CT) vs no-till (NT) (main plot) under conventional (CF) and poultry litter (PL) fertilizer source applications (sub-plots). A succession of three cropping systems consisting of cotton (Gossypium hirsutum L.) with a winter wheat (Triticum aestivum) cover crop, corn (Zea mays) with rye (Secale cereal), and millet (Panicum miliaceum) with rye was implemented. The soil is a Cecil sandy loam (1:1 kaolinitic). Changes in soil pH, soil organic carbon (SOC), and lime buffer capacity (LBC) were compared among the four treatments CTCF, CTPL, NTCF, and NTPL. The CTPL treatment had a 0.6 unit pH increase in the top 15 cm. However, cropping systems had more effect than tillage or fertilizer source on both soil pH and LBC. All treatments resulted in some increase in subsoil pH. Lime buffer capacity remained unchanged at all but the 76–91 cm depth, where all treatments exhibited a decrease ranging from 27 to 43 kg CaCO3 eq ha−1 pH unit−1 year−1. Our results suggest that previously reported liming effect of animal manures should be examined in the context of soil type and cropping system to better understand the true mechanism(s) of soil acidity amelioration. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159794
Appears in Collections: 气候变化与战略
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作者单位: Texas A&M AgriLife Extension, Department of Soil and Crop Sciences, 2474 TAMU College StationTX 77843, United States; USDA-ARS, Tifton, GA, United States; USDA-ARS, Beltsville, MD, United States; USDA-ARS, Athens, GA, United States
Recommended Citation:
Mowrer J.,Endale D.M.,Schomberg H.H.,et al. Liming potential of poultry litter in a long-term tillage comparison study[J]. Soil and Tillage Research,2020-01-01,196