School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, 453003, China.
Cell Mol Biol (Noisy-le-grand). 2022 Feb 27;67(6):107-116. doi: 10.14715/cmb/2021.67.6.15.
The experiment was conducted in the paddy field of a scientific and technological park of an agricultural reclamation farm in Xinxiang province from 2017 to 2019. The soil quality of the experimental field was the rhizosphere soil of rice in the cold region, and Longjing 31 was used as the experimental material. The effects of nitrogen application ratio on microbial diversity of rice rhizosphere soil in the cold region were studied. The aim is to provide a theoretical basis for rational fertilization, improving soil environment and high yield and efficiency. The results showed that: (a) the microbial diversity index of rice rhizosphere soil in the cold region was the best after the second nitrogen application; (b) under the ratio of N4 nitrogen application, the activity of bacteria, fungi and actinomycetes in rice rhizosphere soil in a cold region and their survival were the best; (c) under intensive cultivation conditions, the microbial diversity was the highest under SF1 treatment. SF0 treatment had the highest fungal diversity and SF3 treatment had the highest actinomycete diversity. (d) There was no significant effect on the microbial diversity of rice rhizosphere soil in the cold region without nitrogen fertilizer application in a single season.
该实验于 2017 年至 2019 年在新乡市某垦区农业科技园区的稻田中进行。实验田的土壤质量为寒地水稻根际土壤，以龙井 31 为实验材料。研究了氮素施用量比对寒地水稻根际土壤微生物多样性的影响。旨在为合理施肥、改善土壤环境、提高产量和效率提供理论依据。结果表明：（a）第二次施氮后，寒地水稻根际土壤微生物多样性指数最佳；（b）在 N4 氮用量比条件下，寒地水稻根际土壤细菌、真菌和放线菌的活性及其生存能力最佳；（c）在集约栽培条件下，SF1 处理的微生物多样性最高。SF0 处理的真菌多样性最高，SF3 处理的放线菌多样性最高。（d）单季不施氮肥对寒地水稻根际土壤微生物多样性无显著影响。
