As India is the second‐largest producer of sugarcane in the world, a huge amount of biodegradable by‐product waste, pressmud, is produced every year, and is a promising source of nutrients. Here, an attempt is made to utilize pressmud as carrier for bioinoculants for enhancing crop productivity. The field experiments are set up on finger millet crop using Aspergillus niger (K7) as fungal inoculant and pressmud as carrier. Four treatment combinations, viz., control, K7 strain, pressmud, and K7 strain+pressmud, in soil are studied. The results indicate that the soil nutrients such as N, P, and K increase by 30–50% after the experiment. The pressmud supports up to 5 × 10⁶ fungal spores and the inoculum is viable until the end of 6 months. Growth and yield parameters are influenced positively and result in better height and weight of plants, a higher number of fingers, and improved P uptake. The combination of A. niger (K7) and pressmud is found to be the best. Shoot and root lengths increase by 54% and 96%, respectively, at the time of harvest over control. Number of fingers and weight of grains/plant increase by 77% and 70%, respectively, at 130 days after sowing. It can be concluded that the use of pressmud with microbial inoculant may be an economically viable technology in organic farming and also in its disposal.

中文翻译：

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利用Press泥废物作为载体提高小米的农艺性状

由于印度是世界第二大甘蔗生产国，因此每年都会产生大量可生物降解的副产品废料（压泥），是有希望的养分来源。在此，尝试利用压泥作为生物抑制剂的载体以提高农作物的生产率。以黑曲霉（K7）作为真菌接种剂和press泥作为载体，在手指小米作物上进行了田间试验。研究了土壤中的四种处理组合，即对照，K7菌株，pressmud和K7菌株+ pressmud。结果表明，试验后土壤养分（例如氮，磷和钾）增加了30％至50％。pressmud最多支持5×10 ⁶真菌孢子和接种物可存活到6个月末。生长和产量参数受到积极影响，并导致更好的植物高度和重量，更多的指状物和改善的P吸收。的组合黑曲霉（K7）和pressmud被发现是最佳的。在收割时，枝条和根的长度分别增加了54％和96％。播种后130天，手指的数量和谷物/植物的重量分别增加了77％和70％。可以得出结论，将加压泥与微生物接种剂一起使用可能是有机农业及其处置中的经济可行技术。