EFFECT OF SOILTILLAGE SYSTEMS AND CROPROTATION ON CORN YIELD

  • HENRIQUE PEREIRA SANTOS
  • JULIO CESAR BARRENECHE LHAMBY
Keywords: conventional tillage, minimum tillage, no-tillage. Zea mayst-

Abstract

To evaluate the effect of soil tillage systems and crop rotation on com yield an experiment was set up in Passo Fundo, RS, .13razi1, which was monitored over a four-year period. Fiou soil tillage systems — I) no-tillage. during winter and summer seasons, 2) conventional tillage using disk plow and disk harrow, in winter and no-tillage, in summer, 3) conventional tillage using moldboard plow and disk harrow, in winter and no-tillage, in summer, and 4) mini muni tillage, in winter and no-til lage, in summer. — and two crop rotation systems ¡system 1 (wheat/soybean and common vetch/corn) and system II (wheat/soybean, black oats or white oats/soybean, and common vetch/corn)] were compared. An experimental design of blocks at random, with split-plots and three replications, was used. The main plot was formed by soi I tillage systems, while the split-plots consisted of crop rotation systems. The yield of com grown tender to-tillage and minimum tillage was higher than the yield obtained for com grown after conventional tillage using disk or moldboard plow and disk harrow. There were no significant &Tem of crop rotation systems on com yields.

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Published
2002-12-30
How to Cite
SANTOS, H. P.; LHAMBY, J. C. B. EFFECT OF SOILTILLAGE SYSTEMS AND CROPROTATION ON CORN YIELD . Pesquisa Agropecuária Gaúcha, v. 8, n. 1/2, p. 93-101, 30 Dec. 2002.