BIOTIC COMPONENTS OF ONE RESEARCH SITE UNDER FOUR SOIL MANAGEMENT SYSTEMS
DOI:
https://doi.org/10.5216/pat.v29i2.2838Keywords:
Organic matter, soil pathogenic agents, no-till managementAbstract
Organic matter was studied in a savanna oxisol during two years, in Santa Helena, state of Goiás, Brazil, a traditional no-till management area, in which four soil management systems were developed: no-tillage (PD), deep moldboard plowing (AP), shallow harrow plowing (GA) and deep stirring, using a chiseling plower (EP). The dry matter from weed plants observed in the area produced 2369, 124, 243, 640 kg/ha in PD, AP, GA and EP, about 30 days after soil management, respectively. The organic matter was concentrated in the arable soil layer in areas where no-till management was adopted (PD) and was dispersed in larger depth in areas where deep plowing (AP) was used. Deep stirring (EP) behaved similarly to the no-till management (PD). Lower pH values were verified at arable surface under the no-till management. Larger number of fungi and bacteria, as well as of propagules of Rhizoctonia solani and Fusarium solani, were also observed in the no-tillage areas (PD).
KEY-WORDS: Organic matter; soil pathogenic agents; no-till management.
Downloads
Downloads
Published
Issue
Section
License
Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.
