Large-scale use of chemical fertilizers has brought about environmental pollution and raised food safety issues besides increasing the cost of production. The present study focused on using natural minerals inoculated with nutrient mobilizing microorganism so-called bio-mineral fertilizer to partially substitute chemical fertilizers dose. Two years of field trials and a pot culture experiment were carried out with pomegranate to look into the possibility of bio-mineral fertilizer use in saving phosphorus (P) and potassium (K) chemical fertilizers application and in improving soil fertility, tree nutrition, and fruit quality. Results manifested that application of bio-mineral fertilizer significantly enhanced available nitrogen (N), P, and K content of soil and also improved concentration of P, K, magnesium (Mg) and sulphur (S) in the tree foliage. As a consequence, higher fruit yield with perceptible improvement in quality attributes viz. aril percent, 100 arils test weight, juice acidity, ascorbic acid, total phenolics, anthocyanin concentration was observed in bio-mineral treated trees. The highest yield (73.97% increase over control) was recorded with the application of 150 g tree⁻¹ bio-mineral fertilizer which was equivalent to the yield obtained with the recommended dose of P and K chemical fertilizers. In addition, the application of bio-mineral fertilizer led to improvement in the nutritional quality of fruit and also soil microbial environment as indicated by higher microbial biomass carbon and enzymes activities. So, the results indicate that Penicillium pinophilum based bio-mineral fertilizer may be recommended to supplement P and K requirement of pomegranate tree and get maximum benefits in terms of yield, quality, and production cost savings.

大量使用化肥不仅增加了生产成本，还带来了环境污染和食品安全问题。本研究的重点是使用接种了营养调动微生物的天然矿物质——所谓的生物——矿物肥料部分替代化肥剂量。用石榴进行了两年的田间试验和盆栽试验，研究生物矿质肥料在节约磷（P）和钾（K）化肥施用以及改善土壤肥力、树木营养和水果质量。结果表明，施用生物矿质肥料显着提高了土壤的速效氮（N）、磷、钾含量，同时提高了树叶中磷、钾、镁（Mg）和硫（S）的浓度。因此，水果产量更高，质量属性明显改善，即。在生物矿物处理过的树木中观察到假种皮百分比、100 假种皮容重、果汁酸度、抗坏血酸、总酚类物质、花青素浓度。最高产量（73.⁻¹生物矿物肥料，相当于施用推荐剂量的 P 和 K 化肥所获得的产量。此外，生物矿物肥料的应用改善了水果的营养品质和土壤微生物环境，微生物生物量碳和酶活性更高。因此，结果表明，可推荐以青霉为原料的生物矿肥补充石榴树的磷、钾需求，并在产量、质量和生产成本方面获得最大效益。