Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Nutrient dynamics from surface‐applied organic matter amendments on no‐till orchard soil

Sat Darshan S. Khalsa, Stephen C. Hart, Patrick H. Brown

Soil Use and Management · 2021

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Summary

Abstract Advancing conservation agriculture depends on understanding nutrient dynamics of organic matter amendments (OMA) on no‐till soil. This field incubation study compared surface‐applied composted dairy manure (CM), green waste compost (GWC) and an unamended control from March to September in 2015 and 2016 using a RCBD in a California almond ( Prunus dulcis ) orchard. Measurements included OMA nutrient release rates, changes in soil organic carbon (SOC), total N (TN) and inorganic N, P and K availability using in‐season soil sampling and collection of ion exchange resin (IER) membranes from 0 to 10 cm depth, and cumulative N and P availability using soil IER cores from 0 to 50 cm depth. We hypothesized OMA sources with a lower initial C:N increase soil N availability, greater soluble

Subject
Soil carbon & organic matter
Source type
Peer-reviewed study
System type
Horticulture
DOI
10.1111/sum.12744
Catalogue ID
SNmoy14bym-f0f8lg
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