期刊论文

中文

安徽农业大学学报

1672-352X

2023

50

05

869-875

10.13610/j.cnki.1672-352x.20231030.021

19-22Aa03:湖南省烟草专卖局科技项目 KJXM-2023-15:吉林烟草工业有限责任公司科技项目

本校为第一机构

为明确减氮条件下不同施肥模式对稻茬烤烟生长发育及肥料利用效率的影响。采用单因素随机区组试验，研究了不同施肥模式对烤烟根系生长、地上部生长、干物质及养分积累分配和肥料利用效率的影响。结果表明，在传统施肥(162.0 kg·hm-2)基础上，减氮22.22%的促根减氮施肥模式有利于促进烤烟的根系生长和地上部生长，能够提高烤烟生长期间的烟株干物质积累量和烟叶干物质积累量，提高烟株的氮素积累量及烟叶中的氮、钾积累量；促根减氮施肥模式能够提高烤烟氮肥吸收效率21.98%，氮肥利用效益10.39 kg·kg-1，氮肥干物质积累效率34.95%。促根减氮施肥模式能促进烤烟烟株生长，提高烟株养分吸收能力...

In order to clarify the effects of different fertilization model under nitrogen-reducing condition on the growth and fertilizer utilization efficiency of rice stubble flue-cured tobacco,a single factor experiment with randomized block was used to study the effects of different fertilization modes on root growth,above-ground growth,dry matter and nutrient accumulation and distribution,and fertilizer utilization efficiency of flue-cured tobacco.The results showed that the root promotion and nitrogen reduction fertilization model which was 22.22％...