In:
IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 651, No. 4 ( 2021-02-01), p. 042064-
Abstract:
Summer maize is the main grain crop in northern China, which is of great significance to food security and farmers’ income generation. Due to the arid climate, high wind speed and relatively poor natural conditions in northern China, the application amount of nitrogen fertilizer in farmland is large but the utilization rate is low, and ammonia volatilization causes serious environmental pollution. This study analyzed and summarized the literature on ammonia volatilization of summer maize from 2000 to 2019, and analyzed the influence of different fertilizer application amount and fertilization period on ammonia volatilization of summer maize by means of regression equation. The results showed that the total amount of ammonia volatilization, the amount of net ammonia volatilization, the amount of ammonia volatilization and the amount of fertilizer applied in summer maize showed a quadratic function. To control the ammonia volatilization of summer maize, the use of nitrogen fertilizer should be reduced, especially the amount of nitrogen fertilizer in topdressing period.
Type of Medium:
Online Resource
ISSN:
1755-1307
,
1755-1315
DOI:
10.1088/1755-1315/651/4/042064
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2021
detail.hit.zdb_id:
2434538-6
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