Hp. Dossantos et al., CROP-ROTATION IN GUARAPUAVA .13. EFFECTS OF CROP SUCCESSION SYSTEMS ON YIELD AND ON OTHER AGRONOMIC CHARACTERISTICS OF SOYBEAN, UNDER NO-TILLAGE, Pesquisa agropecuaria brasileira, 29(6), 1994, pp. 907-916
The effects of crop succession systems on yield and on other agronomic
characteristics of soybean were assessed at the Cooperativa Agraria M
ista Entre Rios Ltda., in Guarapuava, Parana, Brazil. Four cropping sy
stems were tested in which soybean was seeded after different winter c
rops (white oat, barley, flax, and wheat) distributed in a number of c
rop rotation systems. The crops were seeded under no-tillage. A random
ized complete block design, with four replications, and plots with 60
m2, was used. Soybean after the succession flax, wheat, and common vet
ch presented lower height of insertion of the first pods. Soybean grow
n after the succession white oat, wheat, lupine, and barley showed low
er plant height. Soybean following the succession wheat and common vet
ch; wheat, common vetch, and flax; wheat, lupine, barley, and white oa
t; wheat monoculture; barley, white oat, wheat, and lupine showed the
best performance, in relation to the parameters studied.