English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Ammonia (NH3) volatilization is one of the main reasons of applied-N loss from agricultural cropping systems. Adjusting the application timing of N fertilizer to improve temporal synchronicity between crop-N demand and soil-N availability could result in higher nitrogen (N) recovery efficiency (NRE) and lower N losses. A two-year experiment was conducted to investigate the effect of split fertilizer N application on NH3 volatilization, grain yield, and NRE. Four treatments were included according to the N application ratio: (i) a single application of total N fertilizer at sowing (N1), (ii) N applied with two splits at a ratio of 4:6 (N2), (iii) N applied with three splits at a ratio of 4:3:3 (N3), and (iv) no N applied as a control (N0). The results show that NH3 fluxes peaked at 3-5 days after fertilization and then dropped sharply within the next week. NH3 fluxes increased significantly with N application rate and were significantly and positively correlated with soil NH4-N content. Slight precipitation (< 10 mm) promoted NH3 volatilization, while heavy precipitation (> 10 mm) restrained it. Applying N with two or three splits significantly increased the grain yield, total N uptake, and NRE of maize and significantly reduced NH3 volatilization losses.

INFLUENCE OF N SPLIT APPLICATION ON NH3 VOLATILIZATION LOSSES AND N RECOVERY EFFICIENCY FROM PLASTIC MULCHING MAIZE IN LOESS PLATEAU, CHINA