Results 241 to 250 of about 2,049,651 (293)

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

open access: yesFoods
Zhao Z   +9 more
europepmc   +1 more source

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   +2 more
openaire   +2 more sources

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   +3 more
openaire   +2 more sources

Release Kinetic Models and Release Mechanisms of Controlled-Release and Slow-Release Fertilizers

ACS Agricultural Science and Technology, 2023
Chanaka Sandaruwan   +2 more
exaly   +2 more sources

Slow-release (GSSP) fertilizer [PDF]

open access: yes, 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
openaire   +2 more sources

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   +4 more
openaire   +2 more sources

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   +2 more
openaire   +1 more source

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
openaire   +1 more source

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   +3 more
openaire   +1 more source

Release mechanism of a novel slow-release nitrogen fertilizer

Particuology, 2019
Abstract We developed a novel slow-release nitrogen fertilizer with the aim of increasing the efficiency of urea use, recycling phosphogypsum, and reducing related pollution. Phosphogypsum was used as a granulating agent and carrier for urea to prepare a novel fertilizer core, which was coated with paraffin wax.
Xiaolong Yu, Bogang Li
openaire   +1 more source

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