Nutrient use efficiency in agricultural systems: a brazilian perspective.
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Most Brazilian soils are deep, highly weathered, acidic, and of low natural fertility. Many strategies have been developed for building soil fertility using lime and mineral fertilizers, particularly phosphorus (P), potassium (K), and micronutrients to attain higher yields. Brazil currently uses 8% of all the fertilizer produced in the world. The country is fourth among the largest consumers, behind only China, India and the United States. However, there is a big problem: national production is minimal. More than 85% of nutrient sources are imported to meet agricultural demand.
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ILPF, Integrated systems, Enhanced efficiency fertilizers, Fertilizers, Precision agriculture, Soil analysis