Agronomic impacts of chemically and microbiologically characterized compost tea in Mediterranean volcanic soils

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Фев. 28, 2025

Compost tea is widely recognized for its beneficial effects on crop growth and soil health. However, efficacy varies depending the composition of feedstock brewing conditions. This study investigates chemical agronomic impact compost prepared from a commercial mixture plant residues animal manure. Standard analyses, combined with solid-state 13 C CPMAS NMR spectroscopy, were employed to characterize organic chemistry feedstock. High-throughput sequencing bacterial eukaryotic rRNA gene markers was used profile microbiota. applied three crops, Allium cepa , Beta vulgaris Lactuca sativa grown in protected Mediterranean environments volcanic soils. The analysis revealed that predominantly composed plant-derived tissues, including grass straw, nitrogen-fixing hay, manure, significant presence O-alkyl-C di-O-alkyl-C regions typical sugars polysaccharides. Additionally, indicated an aliphatic fraction (alkyl-C), characteristic lipids such as waxes cutins. microbiome dominated by Pseudomonadota Pseudomonas Massilia Sphingomonas being most prevalent genera. application resulted yield increases, ranging +21% lettuce +58% onion +110% chard. Furthermore, reduced slug damage enhanced shelf life lettuce. These findings highlight bio-stimulant potential this standardized across different vegetable crops.

Язык: Английский

Biological nitrogen fixation and intra- and interspecific competition in two vegetable/legume intercropping systems and their relationship to crop yield

Scientia Horticulturae, Год журнала: 2024, Номер 337, С. 113502 - 113502

Опубликована: Июль 27, 2024

Legume-based intercropping systems are a beneficial alternative for soil functioning, and rhizobacterial community diversity, while can contribute to reduce external inputs. Hence, the aims of this work were assess: (i) biological N fixation (BNF) process cowpea fava bean under different patterns compared monocultures, (ii) relationship between biologically fixed crop biomass yields, (iii) possible intra- interspecific competition processes in each pattern. We compared, three years, monocultures melon with melon-cowpea patterns, broccoli broccoli-fava patterns. The were: mixed intercropping, row 1:1 (vegetable:legume), 2:1 (vegetable:legume). Fertilization was reduced by 30 % diversified plots. After BNF higher monoculture (16.55 kg ha-1), showed (81.49 ha-1). relative yield (g plant-1) plant sensitive indicators assess interactions. Cowpea (41.45 g plant-1), coinciding lower values derived from air (Ndfa = 16.59 %). Fava lowest (195 highest value Ndfa (92.71 positively correlated yield, not observed cowpea/melon crop. no effects inter- or intraspecific similar than intercrops. On contrary, more competition, increased yields when density low. As consequence, bean, contributed (551 plant-1 613 plan-1, respectively) (181 101 respectively), just competition. This research provides insights about how legumes behave differently grown intercropped vegetables, terms NBF, growth yields: facilitation comparing as Both legume species be recommended reduction fertiliser rates negative effect on cash crops. However, excessive may melon.

Язык: Английский

Root acid phosphatases and microbial biomass phosphorus induced Cd tolerance and P acquisition in wheat inoculated with P solubilizing bacteria

Ecotoxicology and Environmental Safety, Год журнала: 2024, Номер 288, С. 117402 - 117402

Опубликована: Ноя. 29, 2024

Язык: Английский