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Received: July 27, ; Accepted: September 14, Note that the average spacing was The punch system resulted in less soil disturbance when compared to the disc harrow and manual seeder, and proved to be an effective solution for conservation agriculture. It can be seen that the punch seeder had a mean spacing of Family farming plays a prominent role in agricultural production in the country, and mechanised agriculture is therefore important for the development of the sector. Fernandes, Costa and Souza agree with this assertion, since the authors state that SPC assists in quality control during the various stages of a process, especially repetitive processes, as it aims to guarantee the stability and continuous improvement of the process. X referential as double spacings, values that are within the to 1. Table 5 shows the analysis of variance for the area disturbed by the manual seeder ratchet , disc harrow and punch. ABSTRACT Family farming seeks to use less-aggressive agricultural practices, however, there is little machinery available that is suitable for the reality of this sector.

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