Objective: Plant life begins at germination. Stimulating germination with chemical methods can be advantageous. The pregerminative treatment of four promoters was determined in two maize genotypes (G1, G2). Design/methodology/approach: Sixty seeds per Petri dish were used as experimental unit three repetitions, organized a completely randomized 2×4 factorial design. Two factors taken into consi...

Increasingly, products containing humic substances are appearing in the turf industry market claiming to reduce water and fertilizer use by increasing soil moisture and nutrient availability. Humic acid is the most common humic substance that has been studied, but results have been highly variable (Cooper et al.; 1998).The response of humic acid is difficult to interpret due to confounding effe...

A large amount of plant pruning waste occurs after annual care in banana production areas. This material contains significant amounts organic substances and nutrients. In this study, compost (BWC) was applied to the soil both alone mixture with leonardite (LT) vinasse (VC). Treatments include: control (CL), (BWC-2: 2 t da-1; BWC-4: 4 BWC-8: 8 da-1), (LT: recommended application rate), (BWC-2+LT...

Soil organic matter (SOM) is composed of a complex and heterogeneous mixture compounds, which poses challenge in understanding it on an atomistic level. Based the progress molecular dynamics simulations our efforts to create systems that resemble SOM, this work, we expanded knowledge SOM through use humic substances (HSs). Specifically, studied standardized samples HS International Humic Substa...

the use of such biostimulants as humic materials has recently become common in turf management operations. these products have been used to help the establishment of turfgrass and to enhance the turf stress tolerance capacity. this experiment was aimed at studying the effect of humic acid on some growth factors in turf grass. it was carried out in a factorial randomized complete block design (r...

The yield potential of switchgrass was verified by testing seven cultivars in a small-scale experiment carried out from 2018 to 2022 on Gleyic Fluvisol under Central European conditions. treatments are as follows: pre-sowing (i/HA) soil humic preparation Humac AGRO (based leonardite) with an ameliorative dose 1000.0 kg ha−1 or (ii/NPK) basic nutrition 220.0 NPK; annual 70 N applied both (HA, NP...

The capabilities of temperature-monitored IR spectroscopy for studying the organic matter and mineral composition humic substances (HS) were tested. Temperature dependences mid-IR spectra heated in air range 25–215 °C (298–488 K, with a step 2.5 °C)—for three commercially available samples isolated from brown coal (leonardite)—were performed. characteristic bands identified, their changes band ...