Articles

CARBON ECONOMY AND MINERAL NUTRITION IN A SUSTAINABLE PEACH ORCHARD

Article number
1084_72
Pages
533 – 538
Language
English
Abstract
Orchard ecosystems may represent a key factor of carbon (C) cycle, contributing to store atmospheric CO2. Among other, nutrient management is a challenge for low-input farming techniques, which are oriented to improve soil organic carbon (SOC) content.
Increased SOC is a crucial step for soil fertility remediation and it is also beneficial for soil water holding capacity, being significant to improve water use efficiency.
This paper mainly reports the effects of a set of alternative environmental-friendly orchard management practices (no-tillage, pruning residues and cover crop retention, compost application) on nutrients availability and soil C reserves.
That alternative practices were compared against the locally conventional (soil tillage, burning of pruning residues, mineral fertilization). It is shown that a 7-year period of changed practices significantly increased SOC concentration up to 1.8% and soil microbial biomass in a Mediterranean peach orchard.
Incidentally, the yield was improved on average by 30% as compared with conventional managed plot.
The effects of carbon addition on the budget of soil nutrients (N, P, K, Ca, Mg) are discussed.

Publication
Authors
C. Xiloyannis, G. Montanaro, A.N. Mininni, A.C. Tuzio, A. Modarelli, S. Pecchia, S. Giuditta, B. Dichio
Keywords
CARBON ECONOMY AND MINERAL NUTRITION IN A SUSTAINABLE PEACH ORCHARD
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