Major crop nutrient fertilizers (nitrogen, phosphorus and potassium (NPK)) are typically applied in powdered (small particles), granular (larger particles) or in liquid form either as individual or as compound fertilizers. The fertilizer may be applied using a combine (corn) drill where the seed is contained in one hopper and dry fertilizer in another behind it.
Precision application of agrochemicals is an exciting and active area of research where pesticides and fertilizers are applied only where they are needed and at the appropriate concentration to elicit an optimum response. This approach requires accurate information on soil fertility and pest activity and an applicator that can automatically vary the application rate as desired.

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Major crop nutrient fertilizers (nitrogen, phosphorus and potassium (NPK)) are typically applied in powdered (small particles), granular (larger particles) or in liquid form either as individual or as compound fertilizers. The fertilizer may be applied using a combine (corn) drill where the seed is contained in one hopper and dry fertilizer in another behind it.
Precision application of agrochemicals is an exciting and active area of research where pesticides and fertilizers are applied only where they are needed and at the appropriate concentration to elicit an optimum response. This approach requires accurate information on soil fertility and pest activity and an applicator that can automatically vary the application rate as desired.

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