Results 241 to 250 of about 2,049,647 (294)

PLA/Starch Composites: New Applications as Control Release Materials. [PDF]

Foods
Zhao Z, Li Y, Xu Y, Fu J, Duan Q, Wu Z, Makhkamov M, Ali A, Liu H, Yu L.   +9 more
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STUDIES ON SLOW RELEASE FERTILIZERS

Soil Science, 1990
Using first-order kinetics we describe the release of nutrients by coated slow-release fertilizer (SRF). Plotting the logarithm of the concentration of intact fertilizer in the soil [log(Q0 - Qt), where Qt, is the amount applied and Qt, is the amount released at time t] versus the time yielded a ...
MALKA KOCHBA, SHARON GAMBASH, YORAM AVNIMELECH   +2 more
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New Slow-Releasing Molybdenum Fertilizer

Journal of Agricultural and Food Chemistry, 2008
This paper describes a new water-insoluble molybdenum compound that has been developed as a slow-release fertilizer. The compound is an inorganic polymer formed by inclusion of molybdenum within a long-chain polyphosphate structure. It was designed by a process of "reverse engineering" of the molecule.
Siladitya, Bandyopadhyay, Ishita, Bhattacharya, Kunal, Ghosh, Chandrika, Varadachari   +3 more
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Slow-release (GSSP) fertilizer [PDF]

, 2010
Several compositions of matter have been discovered that can be used in the manufacture of slow-release fertilizers that contain all of the essential elements needed by plants and humans.
PALMER JAY W, KAY HEIDI
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Environmentally Friendly Slow-Release Nitrogen Fertilizer

Journal of Agricultural and Food Chemistry, 2011
To sustain the further world population, more fertilizers are required, which may become an environmental hazard, unless adequate technical and socioeconomic impacts are addressed. In the current study, slow-release formulations of nitrogen fertilizer were developed on the basis of natural attapulgite (APT) clay, ethylcellulose (EC) film, and sodium ...
Boli, Ni, Mingzhu, Liu, Shaoyu, Lü, Lihua, Xie, Yanfang, Wang   +4 more
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A new slow-releasing iron fertilizer

Chemical Engineering Journal, 2009
Abstract This paper describes the development of an environment-friendly, slow-release fertilizer of the micronutrient iron. The compound is water insoluble, and is based on a polymeric phosphate structure. Kinetics and solubility of products in the goethite [FeO(OH)]–H 3 PO 4 and [FeO(OH)]–MgO–H 3 PO 4 systems were studied at 170–300 °C ...
Partha K. Chandra, Kunal Ghosh, Chandrika Varadachari   +2 more
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Ureaform as a Slow Release Fertilizer: A Review

Zeitschrift für Pflanzenernährung und Bodenkunde, 1990
AbstractUreaform (UF) is a condensation product between urea and formaldehyde consisting of short chains from methylene‐diurea to tetramethylenepentaurea. The rate of nitrogen release is mainly related to chain solubility. The mineralization of UF is governed by microbial activity. A wide spectrum of organisms is known to be involved.
Alvin Alexander, Hans‐Ulrich Helm
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The use of slow-release fertilizers in citrus

Journal of Horticultural Science, 1996
SummaryIn the last decades, an important change has taken place in agricultural practices to increase production and thus the economic yield of citrus. This increase has been supported mainly by new irrigable areas and the wider use of fertilizers, especially nitrogenous ones. The efficiency of nitrogenous fertilization is highly variable. A great part
Maria D. Raigon, E. Primo Yufera, A. Maquieira, Rosa Puchades   +3 more
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The Effect of CTAB on Bentonite for Slow Release Fertilizer

Key Engineering Materials, 2021
Effect of CTAB (Cetyltrimethylammonium Bromide) surfactant concentration on synthesized CTAB modified bentonite and release of NPK has been studied. Besides, the release kinetic model was also determined. Characterizations of the modified bentonite were done using FTIR (Fourier Transform Infra-Red), XRD (X-Ray Diffraction), and SEM (Scanning Electron ...
Adhitasari Suratman, Alifa Zahra Adhyana, Dwi Siswanta   +2 more
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Surfactant-Modified Zeolite as a Slow Release Fertilizer for Phosphorus

Journal of Agricultural and Food Chemistry, 2006
The feasibility of using surfactant-modified zeolite (SMZ) as a carrier for fertilizer and for slow release of phosphorus (P) was investigated. Zeolite-A was modified by using hexadecyltrimethylammonium bromide, a cationic surfactant, to modify its surface to increase its capacity to retain anion, namely, phosphate (PO4(3-)).
Amit Kumar, Bansiwal, Sadhana Suresh, Rayalu, Nitin Kumar, Labhasetwar, Asha Ashok, Juwarkar, Sukumar, Devotta   +4 more
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