Impact of Drip Irrigation and Nitrogen Fertilization on Soil Microbial Diversity of Spring Maize.

ABSTRACT: Given the shortage of water resources and excessive application of nitrogen fertilizers in irrigated areas, we explored the effect of water−nitrogen coupling on soil microbial diversity in maize fields irrigated using shallow buried droppers. A field experiment (split-plot design) was used with irrigation amounts set at 40%, 50%, and 60% of the conventional amount; furthermore, 13 water and nitrogen coupling treatments were designed. The secondary area was the nitrogen application level, corresponding to 50%, 70%, and the original conventional application amounts. The results showed that the effect of irrigation amount on bacterial community composition was greater than that of nitrogen, whereas the effect of nitrogen on fungi was greater than that on bacteria. No significant difference wa

SUBMITTER: Sarula 

PROVIDER: S-EPMC9736923 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature