Prospect for Physical Type Slow/Controlled Release Fertilizers
نویسندگان
چکیده
منابع مشابه
New Development In Slow-Release Fertilizers
There have been several recent developments in slow-release fertilizers. These materials supply nutrients continuously over an extended period in contrast to water soluble fertilizers which are immediately available after incorporation in moist soil. Slow-release fertilizers are not subject to rapid leaching loss and do not easily burn plants from over-application. The major need for slow relea...
متن کاملControlled - Release Fertilizers : Advances and Challenges
Controlledrelease fertilizers (CRFs) offer an excellent option to improve nutrients uptake by plants and reduce the environmental hazards due to excess release of chemicals. Polymer-coated fertilizers, compared to the other types of CRF, are by far the most intensively researched topic because of their great characteristics. Polymercoated fertilizers, which are less sensitive to the soil and en...
متن کاملCHEMICAL LOG " , Quick - Release Fertilizers For Fast Green - Up
Dr. Alex Shigo, noted tree expert, often speaks about an industrywide fallacy that we can "feed" trees, shrubs, turf and other plants. In reality, plants manufacture their own food through photosynthesis. Elements from the air, water and soil are combined and altered in order to provide the starches plants use for energy and growth. Therefore, we cannot feed a plant. What we can do is provide a...
متن کاملA Rapid Technique for Prediction of Nutrient Release from Polymer Coated Controlled Release Fertilizers
Controlled release fertilizers (CRF) are produced with different rates and durations of nutrient release to cater to different crops with wide ranges of nutrient requirements. A rapid technique is needed to verify the label specifications of nutrient release rate and duration. Polymer-coated urea (PCU) (43% nitrogen [N]) and polymer-coated N, phosphorus (P), potassium (K) (PC_NPK; 14-14-14) fer...
متن کاملNovel High Capacity Swelling Superabsorbent Composite and Its Potential for Controlled Release of Fertilizers
A hydrophilic macromolecular network is prepared by performing graft copolymerization of poly (sodium acrylate) chains onto salep and silica gel. The reaction parameters affecting the water absorbency of the superabsorbent composite were optimized using Taguchi method. FT-IR spectroscopy and Thermo Gravimetric Analysis (TGA) were used for confirming the s...
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ژورنال
عنوان ژورنال: World Journal of Forestry
سال: 2013
ISSN: 2169-2432,2169-2440
DOI: 10.12677/wjf.2013.24007