Journal of Agronomy and Crop Science, Journal Year: 2024, Volume and Issue: 210(5)

Published: Sept. 6, 2024

ABSTRACT Biological nitrogen fixation (BNF) in legume crops is a crucial ecosystem service that enhances soil and reduces the need for chemical fertilisers. This study evaluates factors influencing proportion of plant derived from atmospheric (Ndfa) crops. We compiled global dataset spanning 1980 to 2018 used 15 N method assess impacts crop species, climatic conditions, stand composition fertilisation on Ndfa. The meta‐analysis reveals percentage legumes ranges 5% 99%, with an average 68%. Fodder exhibited higher Ndfa, averaging 75%, while grain showed more variability, ranging 38% 85%, depending species conditions. significant variability Ndfa underscores complexity process, which influenced by species‐specific traits, ecological conditions competition mixed stands. However, current data insufficient precise estimation balances decision support tools. highlights further research impact These findings emphasise potential BNF sustainable agriculture improving availability reducing dependence synthetic fertilisers particularly susceptibility climate change challenges. To optimise benefits BNF, future should focus refining regimes exploring responses various Exploring adaptive strategies, like selecting drought‐tolerant optimising irrigation, essential. will enhance application diverse agricultural systems, contributing efficient farming practices.

Language: Английский