Section 4
Chapter 3,260

Response of soyabeans to potassium fertilizer and availability of potassium in a dystrophic red Latosol

Borkert, C.M.; Farias, J.R.B.; Sfredo, G.J.; Tutida, F.; Spoladori, C.L.

Pesquisa Agropecuaria Brasileira 32(12): 1235-1249


ISSN/ISBN: 0100-204X
Accession: 003259563

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In field trials in 1983-92 on a dystrophic red Latosol in Maua da Serra, Parana, Brazil, soyabeans were given 0, 40, 80, 120, 160 or 200 kg K2O/ha annually for the first 5 years and no K for the following 5 years. It was concluded that Latosols, with low K availability, could not cultivated without corrective and maintenance applications of K fertilizer.

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