synthetic fertilizer

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However, most of the conventional hazelnut producers were also applying manure in addition to synthetic fertilizers.
These concerns included lack of confidence in certification and doubts about the ability to produce sufficient food without synthetic fertilizers and chemicals.
Organic production generally describes farming practices that emphasize environmental sustainability and avoid the use of synthetic fertilizers and chemicals.
The organic hazelnut producers used no synthetic fertilizers or pesticides.
The organic producers do not use synthetic fertilizers and pesticides, so their costs of production are relatively lower than conventional producers.
The plantation was at least 10 years old and was initially treated with synthetic fertilizers and pesticides.
Because synthetic fertilizers and pesticides are prohibited in organic farming, however, even 'a minimal amount' of these products would not constitute organic agriculture research.
Furthermore, mean margins over the five-year period were increased by the use of manure, relative to the treatments receiving synthetic fertilizers only.
On the other hand, conventional hazelnut producers did use synthetic fertilizers and pesticides.
Increased application of organic inputs, along with appropriate rates of synthetic fertilizers, is considered key to maintaining soil fertility and productivity in intensifying cropping systems.
Currently, modern agricultural production systems have high dependence on synthetic fertilizers and other agrochemicals to attain high yield levels.
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