Structure and Dynamics of Zr&lt;sup&gt;4+&lt;/sup&gt; in Aqueous Solution: An Ab Initio QM/MM Molecular Dynamics Study

Suwardi, Suwardi; Pranowo, Harno Dwi; Armunanto, Ria

doi:10.22146/ijc.21209

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…A good PGM must meet the optimum physical, chemical, and biological requirements specifically tailored to the needs of the ornamental plants. Zeoponic is a plant growing medium made from zeolite mixed with compost, cocopeat, roasted husks and other materials that support plant growth [2]. The application of ameliorant materials in the form of zeolite and organic matter can increase the fertility of plant-growing media and jack up the availability of nutrients needed by plants [3].…”

Section: Introductionmentioning

confidence: 99%

Zeoponic formula for plant growth media for ornamental plants Aglaonema siam aurora and Anthurium crystallinum

Widjaja

Hidayah

Suryaningtyas

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Plant growth media (PGM) play a crucial role in producing healthy and valuable ornamental plants. A good PGM has the suitable physical, chemical, and biological properties that can help realize the total growth and development potential of the plants. One PGM developed that meets these requirements is a zeoponic, made from zeolite, compost, and cocopeat as raw materials, and formulated specifically for ornamental plants. Ornamental plants are horticultural commodities with high economic value driven by fast-growing demand. However, a common problem in the cultivation of ornamental plants is the unwanted degradation in the appearance of the leaves, e.g., turning into pale and faded color. Hence, the application of an accurate dosage of macro and micro fertilizers on zeoponic ornamental plants can boost growth and enhance the aesthetic value of the plants. With this in mind, this study aimed to find the precise fertilizer formula, specially or even exclusively, for ornamental plants. The experiment was arranged in a factorial completely randomized design (CRD) with two factors, namely (1) plant species consisting of Aglaonema siam aurora and Anthurium crystallinum, and (2) fertilizer dosage consisting of different combinations of N, P, and K fertilizers as well as micro fertilizers. Test parameters observed were plant height, number of leaves, leaf length, leaf width, leaf chlorophyll, and plant beauty. PGM analysis was carried out by measuring pH, EC, available-N, available-P, cation exchange capacity, exchangeable bases, organic-C, and micronutrients. This study showed that zeoponic with a dosage of 0.375 g/l NPK fertilizer was the best for Aglaonema siam aurora, while zeoponic with a dosage of 0.75 g/l of NPK fertilizer was the best for Anthurium crystallinum plants. The use of zeoponic media is highly recommended owing to its suitable chemical properties (e. g, neutral pH, favorable EC and CEC).

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Section: Introductionmentioning

confidence: 99%

Zeoponic formula for plant growth media for ornamental plants Aglaonema siam aurora and Anthurium crystallinum

Widjaja

Hidayah

Suryaningtyas

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Hybrid Forces Molecular Dynamics on the Lability, Dynamics and “Structure Breaking Effect” of Cs+ in Liquid Ammonia

Hidayat

Rahmawati

Nurcahyo

et al. 2020

Bulletin of the Chemical Society of Japan

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The lability, dynamics of the first solvation shell, and structure breaking effect properties of Cs+ in liquid ammonia have been evaluated using Quantum Mechanical Charge Field Molecular Dynamics (QMCF-MD) simulation. The system was conducted in a simulation box containing 593 ammonia molecules with a density of 0.690 g/cm3. The Hartree-Fock level of theory was employed to calculate the interaction of the particles in the QM region using LANL2DZ-ECP and DZP (Dunning) basis set for ion and ligands, respectively. The two solvation regions were observed, and the non-single coordination number confirmed a labile solvation structure. The first solvation shell predominantly by [Cs(NH3)9]+ and the angular distribution function (ADF) confirmed a distorted capped square antiprism geometry. The mean residence time of 1.57 ps and reverse sustainability of 3.1 are more dynamic than the “self-solvation” of ammonia, indicating structure breaking effect by Cs+.

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Structure and Dynamics of Zr<sup>4+</sup> in Aqueous Solution: An Ab Initio QM/MM Molecular Dynamics Study

Abstract: A QM/MM molecular dynamics (MD)

Cited by 2 publications

References 22 publications

Zeoponic formula for plant growth media for ornamental plants Aglaonema siam aurora and Anthurium crystallinum

Zeoponic formula for plant growth media for ornamental plants Aglaonema siam aurora and Anthurium crystallinum

Hybrid Forces Molecular Dynamics on the Lability, Dynamics and “Structure Breaking Effect” of Cs+ in Liquid Ammonia

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