Results 21 to 30 of about 2,351,070 (299)

Controlled-Release and Slow-Release Fertilizers as Nutrient Management Tools

open access: yesEDIS, 2014
There are many fertilizer sources available for commercial crop production. The characteristics of each fertilizer type determine whether its use poses an advantage or a disadvantage to a farmer. This 7-page fact sheet focuses on how to select the right
Guodong Liu   +5 more
doaj   +5 more sources

NPK Fertilizer with Slow Release Fly Ash [PDF]

open access: yesJournal of Pure and Applied Chemistry Research, 2018
Fly ash is the solid of the remaining coal combustion carried along with the exhaust gas and captured by the air controller. Fluids in fly ash are Al2O3, SiO2, Fe2O3, CaO, MgO, Na2, and SO3 which are similar to zeolites.
Nadhira Izzatur Silmi   +5 more
doaj   +1 more source

Nitrogen release dynamics and transformation of slow release fertiliser products and their effects on tea yield and quality

open access: yes, 2008
BACKGROUND: Tea (Camellia sinensis (L.) O. Kuntze) is a perennial leaf harvested crop. It requires more nitrogen than most other crops and preferentially utilises NH4+ to NO3- when both are available in the soil.
Li‐Feng Ma   +9 more
core   +1 more source

An organoclay formula for the slow release of soluble compounds

open access: yes, 2014
Slow-release formulations have been developed to enhance the effective use of active ingredients. In the case of fertilizers the formulations reduce nutrient leaching and greenhouse gas emissions.
Yuan, Guodong
core   +1 more source

Calibration and Validation of VegSyst-CH Model to Manage Water and Nitrogen for Open-Field Lettuce in North China

open access: yesHorticulturae
In the cold and arid regions of northern China, efficient water and nitrogen (N) management is critical for the sustainable production of leafy vegetables.
Bingrui Lian   +4 more
doaj   +1 more source

Treatability of oil palm frond and rubber wood chips with urea for the development of slow release fertiliser [PDF]

open access: yes, 2015
Treatability of a material is fundamental in determining how much chemicals or fillers are retained in the material before it can be used for slow release fertiliser. The aim of this study was to investigate the effect of urea retention in oil palm frond
Ashaari, Zaidon   +4 more
core   +1 more source

Kinetics of Halide Release of Haloalkane Dehalogenase: Evidence for a Slow Conformational Change [PDF]

open access: yes, 1996
Haloalkane dehalogenase converts haloalkanes to their corresponding alcohols and halides. The reaction mechanism involves the formation of a covalent alkyl-enzyme complex which is hydrolyzed by water.
Kingma, Jaap,   +5 more
core   +2 more sources

Zeolite-based Composites as Slow Release Fertilizers (Review)

open access: yesФізика і хімія твердого тіла, 2020
One of the most important problems of agriculture is finding new methods to increase soil fertility and productivity. The use of fertilizers increases the efficiency of nutrients, however, their uncontrolled use leads to leaching and contamination of the
L. Soltys   +3 more
doaj   +1 more source

Manipulated Slow Release of Florfenicol Hydrogels for Effective Treatment of Anti-Intestinal Bacterial Infections. [PDF]

open access: yesInt J Nanomedicine
Wanhe Luo,1,2 Mengdi Zhang,1 Yongtao Jiang,1 Guocai Ma,3 Jinhuan Liu,1,4 Ali Sobhy Dawood,5 Shuyu Xie,6 Samah Attia Algharib7 1College of Animal Science and Technology, Tarim University, Alar, Xinjiang, 843300, People’s Republic of China; 2Key Laboratory
Luo W   +7 more
europepmc   +2 more sources

Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns

open access: yes, 2020
Urea is the most common form of nitrogenous fertiliser. Recently, research has focused on the development of delivery systems to prolong fertiliser release and prevent fertiliser loss through leaching and volatilization.
Leila Javazmi   +7 more
core   +1 more source

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