Silicate rock with different granulometry as a potassium source for alfalfa and centrosema crops
Adônis Moreira,
Larissa Alexandra Cardoso Moraes,
Sérgio Ricardo Silva
et al.
Abstract:The objective of this work was to evaluate the application of silicate ultramafic alkaline rock, with different granulometry, as an alternative potassium source on the increase of soil fertility and on the nutritional status and biomass yield of the alfalfa and centrosema crops. The used soil was a Typic Ultisol with 27.4 mg dm-3 K and 733 g kg-1 clay. The experimental design was completely randomized, in a 4 × 2 + 1 factorial arrangement. The treatments consisted of two granulometries (<0.3 and 0.3-2.0 mm)… Show more
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