Resumen

MARRERO, Y et al. Influencia del laboreo sobre el manejo de la simbiosis micorrízica efectiva en una secuencia de cultivos sobre un suelo Pardo con Carbonatos. cultrop [online]. 2008, vol.29, n.2, pp.11-15. ISSN 0258-5936.

This research study was developed at the experimental area from INIVIT, Santo Domingo, Villa Clara. Two tillage variants on a carbonated Brown soil were analyzed in an efficiently AMF-mycorrhized cropping sequence. A randomized complete trifactorial experimental design was used, and the factors were first: tillage (minimum and conventional); second: organic matter (with and without); third: mycorrhizae (inoculating every crop, every two crops, every three crops, without inoculating with 25 % mineral fertilization for yucca, 50 % for sweet potato and 50 % for taro), the check with 100 % mineral fertilization and the absolute check with four repetitions. Data for all statistical analyses were performed through SPSS 11. 5 for Windows statistical package. The following variables were analyzed: percentage of mycorrhizal colonization (%) and agricultural yield (t.ha-1). Results proved there is a permanent inoculum effect on the next crop to the inoculated one; also it is possible to reduce the pattern for applying mycorrhizal inoculum by means of using coating technique, obtaining the same yields and saving one inoculant application

Palabras clave : tillage; symbiosis; sequential cropping.

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