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添加富磷矿粉堆肥和化肥后土壤磷素动态变化

Changes in soil phosphorus dynamics amended with rock phosphate-enriched compost and chemical fertilizers.

作者信息

Meena Dilkhush, Meena Murli Dhar, Sengar Satendra Singh, Mishra Vidhya Nand, Kumar Anup, Lakhera Mohan Lal, Dotaniya Mohan Lal, Meena Mukesh Kumar, Kumar Sujith, Meena Bheeru Lal, Jat Ram Swaroop, Meena Lalit Krishan, Prajapat Mukesh, Meena Hari Singh, Ghosh Avijit, Meena Vasudev, Rai Pramod Kumar, Sheoran Parvender, Meena Vijay Singh

机构信息

Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgrah, India.

ICAR - Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur, India.

出版信息

PLoS One. 2025 Jun 3;20(6):e0324716. doi: 10.1371/journal.pone.0324716. eCollection 2025.

DOI:10.1371/journal.pone.0324716
PMID:40460087
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12133002/
Abstract

To adopt effective phosphorus (P) management strategies for sustainable mustard (Brassica juncea L.) production, it is crucial to understand how P is transformed and made available in the soil by utilising diverse P sources. In this study, a field experiment carried out with five treatment combinations; T1: control, T2:100% recommended dose of fertilizers (RDF), T3: enriched compost @ 6 t/ha, T4:100% RDF + enriched compost @ 6 t/ha, and T5:50% RDF + enriched compost @6 t/ha. Findings indicated that the soil treated with 100% RDF together with enhanced compost at 6 t/ha exhibited substantial improvements in saloid-P, aluminum-P (Al-P), iron-P (Fe-P) and calcium-P (Ca-P) in contrast to compost and 100% RDF alone; however, it was statistically similar to a treatment obtaining 50% RDF + enhanced compost @ 6 t/ha. For soil that has been fertilized with chemical fertilizers and enriched compost, remarkable improvement (15.5% and 8%) in alkaline phosphatase activity (ALPA) was seen in contrast to the exclusive use of chemical fertilizers and enriched compost, respectively, compared to 100% RDF, enriched compost and chemical fertilizers enhanced the amount of soil microbial biomass phosphorous (MBP; 55%), microbial biomass carbon (MBC; 34%), and dehydrogenase activity (DHA; 45%). Enriched compost @ 6 t/ha maintained greater P availability and microbial activities culminating in significantly higher mustard grain yield (2.93 Mg/ha). Mustard grain yield was 16.7% higher on soil treated with 100% RDF than control. The outcomes demonstrated that enrichment of processed compost (6 t/ha) with chemical fertilizers (100% RDF) is a good strategy for improved P accumulation deciphering P conversions in soil-plant systems and sustaining mustard yields in degraded ecosystems.

摘要

为了采用有效的磷（P）管理策略实现芥菜（Brassica juncea L.）的可持续生产，了解如何利用多种磷源在土壤中转化磷并使其有效利用至关重要。在本研究中，进行了一项田间试验，设置了五个处理组合；T1：对照，T2：100%推荐施肥量（RDF），T3：6吨/公顷的强化堆肥，T4：100% RDF + 6吨/公顷的强化堆肥，以及T5：50% RDF + 6吨/公顷的强化堆肥。研究结果表明，与单独使用堆肥和100% RDF相比，用100% RDF加上6吨/公顷的强化堆肥处理的土壤，在有效磷、铝磷（Al-P）、铁磷（Fe-P）和钙磷（Ca-P）方面有显著改善；然而，在统计学上它与50% RDF + 6吨/公顷强化堆肥的处理相似。对于施用了化肥和强化堆肥的土壤，与单独使用化肥和强化堆肥相比，碱性磷酸酶活性（ALPA）分别有显著提高（15.5%和8%），与100% RDF相比，化肥、强化堆肥提高了土壤微生物生物量磷（MBP；55%）、微生物生物量碳（MBC；34%）和脱氢酶活性（DHA；45%）。6吨/公顷的强化堆肥保持了更高的磷有效性和微生物活性，最终使芥菜籽粒产量显著提高（2.93吨/公顷）。用100% RDF处理的土壤上的芥菜籽粒产量比对照高16.7%。结果表明，用化肥（100% RDF）对加工后的堆肥（6吨/公顷）进行强化是一种改善磷积累、解读土壤 - 植物系统中磷转化以及维持退化生态系统中芥菜产量的良好策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1746/12133002/39373907f697/pone.0324716.g011.jpg
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本文引用的文献

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Recycling of silicon-rich agro-wastes by their combined application with phosphate solubilizing microbe to solubilize the native soil phosphorus in a sub-tropical Alfisol.富硅农业废弃物与解磷微生物联合应用于亚热带淋溶土中土壤磷的原位溶出。
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磷矿粉和富含废云母堆肥中磷和钾的释放动力学及其对小麦（普通小麦）产量和养分吸收的影响
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