Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Mar 10;13:853449. doi: 10.3389/fpls.2022.853449

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2022 Khan, Zhang, Khan, Bi, Zhu, Luo and Hu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Integral effects of biochar and nitrogen on soil urease (A) 2019–2020, (B) 2020–2021, alkaline phosphatase (C) 2019–2020, (D) 2020–2021, soil catalase (E) 2019–2020, (F) 2020–2021 and invertase (G) 2019–2020 and (H) 2020–2021. B0: 0 t ha⁻¹biochar; B15: 15 t ha⁻¹biochar; B30: 30 t ha⁻¹biochar; B60: 60 t ha⁻¹biochar; N0: 0 kg ha⁻¹ nitrogen; N75: 75 kg ha⁻¹ nitrogen; N225: 225 kg ha⁻¹ nitrogen, and N450: 450 kg ha⁻¹ nitrogen, error bars represent standard error for each treatment in three replicates. Different letters on each bar represent significant difference according to LSD test (p < 0.05).