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Row-injected cattle slurry can replace mineral P starter fertiliser and reduce P surpluses without compromising final yields of silage maize by Pedersen, Ingeborg F.; Rubæk, Gitte H.; Nyord, Tavs; Sà̧rensen, Peter is a Agricultural and Biological Sciences article available to read on EtoBox.

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Accumulation of phosphorus (P) in soil can be a problem on intensive livestock farms with maize cropping, when mineral P starter fertilisers are applied in combination with evenly injected liquid manure before sowing. We examined the possibilities of replacing mineral P starter fertiliser with placement of cattle slurry close to the maize row before sowing in a two-year field study. The study was carried out on a sandy loam (pH of 6.1 and Olsen-P content of 44 mg P kg -1 ) and a coarse sandy soil (pH of 5.9 and Olsen-P content of 34 mg P kg -1 ) in Denmark. Slurry was row-injected at 10 cm depth in a broad-band with a 26-cm wide goosefoot tine or in a narrow-band. These two row-injection methods were combined with a nitrification inhibitor and/or slurry acidification. Treatments with evenly injected slurry at random lateral positions relative to the maize row (nonplaced slurry) with increasing amounts of mineral starter P (0, 10 and 30 kg P ha -1 , respectively) were included as reference treatments. Slurry placement in narrow or broad bands combined with slurry acidification or a nitrification inhibitor resulted in leaf P concentrations at the five-leaf stage that were significant

Who reads Row-injected cattle slurry can replace mineral P starter fertiliser and reduce P surpluses without compromising final yields of silage maize?

Author

Pedersen, Ingeborg F.; Rubæk, Gitte H.; Nyord, Tavs; Sà̧rensen, Peter

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1161-0301)

Published

2020

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)