SOYBEAN CROP PERFORMANCE IN RESPONSE TO FERTILIZATION SOURCES AND RATES IN DIFFERENT SOIL TYPES AND GROWING CONDITIONS
DOI:
https://doi.org/10.36725/agries.v11i2.10705Keywords:
Typic Quartzipsamment, Petric Plinthosol with Argic horizon characteristics, Rock remineralizer, Rock phosphateAbstract
The objective of this study was to evaluate fertilizer sources and application rates on soybean development
under no-tillage in different soil types, aiming to promote sustainable and productive practices in the Cerrado
biome. The study compared the performance of soybean (variety DM80I79 IPRO) grown under no-tillage in
fragile Cerrado soils subjected to different fertilizer sources and rates. Treatments consisted of two soil types
(Typic Quartzipsamment and Petric Plinthosol with argisolic characteristics), three fertilizer sources (soluble,
remineralizer, and natural phosphate), and five application rates (0%, 50%, 100%, 150%, and 200% of the
recommended P₂O₅ rate for soybean cultivation). The experiment followed a completely randomized design
(CRD) in a 2×3×5 factorial arrangement (soil type, fertilizer source, and application rate) with four
replications. The soluble fertilizer source (Single Superphosphate) showed a positive effect on plant growth and development, as well as on yield, presenting superior results compared to the other fertilizer sources,
particularly at the 3 Mg ha⁻¹ rate, both in conventional and no-tillage systems. Natural phosphate, although
less effective than the soluble source, produced better results than the remineralizer, also contributing
positively to yield and plant development at the 3 Mg ha⁻¹ rate. Thus, the results indicate that natural phosphate
can be effective as a nutritional supplement but does not fully replace soluble fertilizers.
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