Results 71 to 80 of about 341,999 (308)

ADVERSE SELECTION IN DEVELOPING COUNTRY FACTOR MARKETS: THE CASE OF FERTILIZERS IN CAMBODIA [PDF]

open access: yes
We analyze the presence and potential impact of low quality fertilizers, inadequate access to credit and market information on fertilizer market participation and application rates.
Hongen, Friederike, Schamel, Guenter
core   +1 more source

Spring barley yield and nitrogen recovery after application of peat manure and pig slurry [PDF]

open access: yes, 2006
The effectiveness of peat manure, manufactured of pig slurry and moderately humified Sphagnum peat (slurry:peat ca. 1:1.5 v/v), as nitrogen (N) source for spring barley was investigated in a four.year field experiment on a clay loam soil in south-western
Mattila, Pasi K.
core   +2 more sources

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre   +3 more
wiley   +1 more source

THE ECONOMIC AND ENVIRONMENTAL IMPACTS OF VARIABLE RATE FERTILIZER APPLICATION: THE CASE OF MISSISSIPPI [PDF]

open access: yes
A number of programs have been introduced to limit environmental nonpoint pollution (NPP) associated with agricultural practices. One such program, precision agriculture, involves a range of management practices that utilize site-specific information at ...
Hite, Diane   +2 more
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Precision Timing and Spatial Allocation of Economic Fertilizer Application [PDF]

open access: yes
Recent increases in fertilizer, particularly nitrogen, and fuel price have resulted in increased production cost for farmers. In this paper a farm level production model that compare uniform and variable rate fertilizer (NPK) application is developed ...
Dillon, Carl R., Gandonou, Jean-Marc
core   +1 more source

Growth response of lutz spruce saplings to the removal of a herbaceous competitor and the application of fertilizer in Southeast Alaska [PDF]

open access: yes, 2014
Thesis (M.S.) University of Alaska Fairbanks, 2014.Herbaceous competitor species such as fireweed can impact future survival and growth of Lutz (Picea x lutzii Little, Pinaceae) spruce saplings. Fertilizer is applied to crop trees in order to supply more
Dickson, Emily
core  

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Revisiting the effect of fertilizer application on biomass accumulation in alfalfa: roles of fertilizer type, application rate, and environmental condition

open access: yesGrass Research
An insufficient supply of high-quality forage is a critical factor constraining the development of the livestock industry. Cultivated grasslands, such as alfalfa (Medicago sativa L.), play a vital role in addressing this issue.
Zhuanlin Ben, Huimin Yang
doaj   +1 more source

Nitrogen loss assessment and environmental consequences in the loess soil of China [PDF]

open access: yes, 2003
Attention is focused on fertilizer nitrogen loss and the environmental consequences in Shaanxi Province in loess region of China, including N losses to the atmosphere via ammonia volatilization, nitrification and denitrification, N losses to groundwater ...
Tong, Yanan
core  

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