Combined application of organic manure and reduced-rate chemical fertilizer improved growth, nutrient use efficiency, biomass accumulation, and carbon sequestration of Zanthoxylum armatum seedlings

IF 1.7 3区农林科学 Q2 FORESTRY

Canadian Journal of Forest Research Pub Date : 2023-09-07 DOI:10.1139/cjfr-2023-0115

Tahseen Saba, Fariha Saleem, Wanlin Liu, Jing-yan Wang, W. Hui, Hafsa Nazir, W. Gong

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Abstract

The possibility of incorporating organic manure (OM) to reduced rates of chemical fertilizers (CF) to augment biomass production and carbon sequestration (Cseq), and the role of nitrogen (N), phosphorus (P) and potassium (K) uptake in vegetation Cseq was investigated through pot experiment with one-year-old Zanthoxylum armatum seedlings. Seven treatments were designed including NPK, PK, NP, NK, OM, MNPK (50%NPK+50%OM), and control (CK, no fertilization). MNPK application improved nutrient uptake of 2.76-fold N, 3.34-fold P, and 2.01-fold K, resulting in the highest biomass production and biomass Cseq (1.65-fold) as compared to CK. Correlation and redundancy analysis revealed that Cseq is significantly associated to biomass production (r = 0.994) and regulated by N and P uptake. The highest NUE was recorded for N (38.8%), followed by K (21.1%), and P (16.4%) under MNPK application. Therefore, MNPK could be an optimum measure regarding fertilizer saving, biomass production and attaining C neutrality.

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有机肥和减量化肥联合施用提高了花椒幼苗的生长、养分利用效率、生物量积累和固碳能力

以1年生花椒幼苗为研究对象，通过盆栽试验研究了有机肥(OM)与化肥(CF)配合增加生物量和碳固存(Cseq)的可能性，以及植被对氮(N)、磷(P)和钾(K)吸收的作用。设计了NPK、PK、NP、NK、OM、MNPK (50%NPK+50%OM)和对照(CK，不施肥)7个处理。氮磷钾处理提高了氮肥的2.76倍、磷的3.34倍和钾的2.01倍，生物量产量和生物量Cseq均为对照的1.65倍。相关分析和冗余分析表明，Cseq与生物量产量显著相关(r = 0.994)，并受氮磷吸收的调控。氮肥利用效率最高，为38.8%，其次是钾(21.1%)和磷(16.4%)。因此，MNPK可能是节约肥料、生产生物质和实现碳中和的最佳措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Canadian Journal of Forest Research 农林科学-林学

CiteScore

4.20

自引率

9.10%

发文量

109

审稿时长

3 months

期刊介绍： Published since 1971, the Canadian Journal of Forest Research is a monthly journal that features articles, reviews, notes and concept papers on a broad spectrum of forest sciences, including biometrics, conservation, disturbances, ecology, economics, entomology, genetics, hydrology, management, nutrient cycling, pathology, physiology, remote sensing, silviculture, social sciences, soils, stand dynamics, and wood science, all in relation to the understanding or management of ecosystem services. It also publishes special issues dedicated to a topic of current interest.