开发更有效的含磷铁改性生物炭肥料，以提高花生产量并调节土壤磷含量

IF 6.1 1区农林科学 Q1 SOIL SCIENCE

Soil & Tillage Research Pub Date : 2025-04-09 DOI:10.1016/j.still.2025.106572

Junxiao Zhang , Qi Wu , Daocai Chi , Guimin Xia , Emmanuel Arthur

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引用次数: 0

摘要

载磷铁改性生物炭（Fe-BP）可作为农田缓释磷肥料。本研究旨在探讨铁bp对沙质土壤磷组成、磷酸酶活性、花生磷积累和磷肥利用效率的影响。为期2年的试验采用完全随机区组设计，包括无生物炭和无磷肥（B0P0）、无生物炭和常规磷肥（CK）（B0P1、CK、P2O5为144 kg·ha−1）、生物炭和CK （B1P1）、铁改性生物炭（Fe-B）和CK （FeB-P1）、载磷的Fe-B和CK （FeBP-P1）、载磷的Fe-B和三分之一的CK （FeBP-P2、P2O5为96 kg·ha−1）。结果表明，Fe-B能提高花生磷素积累量，提高产量和磷肥利用效率。与FeBP-P1相比，FeBP-P1的P生理效率（PEP）提高了14.8 %。在休耕期，FeBP-P1降低了土壤有效磷含量，而FeBP-P1增加了土壤有效磷含量，这种效应持续到第二年。Fe-B不增加土壤pH值，对酸性磷酸酶无显著影响。与B0P0和B0P1相比，FeBP-P2使NaHCO3-Pi分别提高了66 %和49 %。这种增加主要是由于FeBP-P2携带的磷酸盐释放缓慢。总体而言，Fe-BP在减少磷肥施用量的情况下提高了土壤有效磷，提高了磷的利用效率。

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Developing more effective phosphorus-loaded iron modified biochar fertilisers for improvement of peanut yield and regulation of soil phosphorus fractions

Phosphorus-loaded iron-modified biochar (Fe-BP) can be used as farmlands' slow-release phosphorus (P) fertilizer. This study aimed to explore the effects of Fe-BP on soil P composition, phosphatase activity, peanut P accumulation, and P fertilizer utilization efficiency in sandy soil. The two-year experiment was a randomized complete block design including no biochar and no P fertilizer (B0P0), no biochar and conventional phosphate fertilizer (CK) (B0P1, CK, P₂O₅ is 144 kg· ha⁻¹), biochar and CK (B1P1), iron-modified biochar (Fe-B) and CK (FeB-P1), P loaded Fe-B and CK (FeBP-P1), P loaded Fe-B and two third CK (FeBP-P2, P₂O₅ is 96 kg· ha⁻¹). It was found that Fe-B increased P accumulation, yield and P fertilizer utilization efficiency in peanuts. The physiological efficiency of P (PEP) of FeBP-P1 increased by 14.8 % compared with that of FeB-P1. During the fallow period, FeB-P1 decreased the soil available P content, while FeBP-P1 increased the soil available P content, and this effect lasted into the second year. Fe-B did not increase soil pH and did not significanlty affect acid phosphatase. FeBP-P2 increased NaHCO₃-Pi by 66 % and 49 %, respectively, compared to B0P0 and B0P1. This increase is mainly due to the slow release of phosphates carried by FeBP-P2. Overall, Fe-BP enhanced soil available P under reduced P fertilizer application, improving P use efficiency.

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来源期刊

Soil & Tillage Research 农林科学-土壤科学

CiteScore

13.00

自引率

6.20%

发文量

266

审稿时长

5 months

期刊介绍： Soil & Tillage Research examines the physical, chemical and biological changes in the soil caused by tillage and field traffic. Manuscripts will be considered on aspects of soil science, physics, technology, mechanization and applied engineering for a sustainable balance among productivity, environmental quality and profitability. The following are examples of suitable topics within the scope of the journal of Soil and Tillage Research: The agricultural and biosystems engineering associated with tillage (including no-tillage, reduced-tillage and direct drilling), irrigation and drainage, crops and crop rotations, fertilization, rehabilitation of mine spoils and processes used to modify soils. Soil change effects on establishment and yield of crops, growth of plants and roots, structure and erosion of soil, cycling of carbon and nutrients, greenhouse gas emissions, leaching, runoff and other processes that affect environmental quality. Characterization or modeling of tillage and field traffic responses, soil, climate, or topographic effects, soil deformation processes, tillage tools, traction devices, energy requirements, economics, surface and subsurface water quality effects, tillage effects on weed, pest and disease control, and their interactions.