The optimum nitrogen fertilizer rate for maize in the US Midwest is increasing

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 5, 2025

Fertilizing maize at an optimum nitrogen rate is imperative to maximize productivity and sustainability. Using a combination of long-term (n = 379) short-term 176) experiments, we show that the economic for US production has increased by 2.7 kg N ha−1 yr−1 from 1991 2021 (1.2% per year) simultaneously with grain yields losses. By accounting societal cost estimates losses, estimate environmental rate, which also over time but lower than rate. Furthermore, provide evidence reducing rates could reduce 6% while slightly We call enhanced assessments predictability meet rising avoiding unnecessary Maize dependent on Nitrogen fertilizer input. Here, authors use experiments demonstrate fertilization have between 2021.

Language: Английский

Historical increases in plant density increased vegetative maize biomass while breeding increased reproductive biomass and allocation to ear over stem

Field Crops Research, Journal Year: 2024, Volume and Issue: 322, P. 109704 - 109704

Published: Dec. 12, 2024

Language: Английский