Produção e supressão de plantas daninhas da aveia branca (Avena sativa L.) sob diferentes formas de estabelecimento

Abstract

The weeds have always been great causes productivity losses in the farming, be it from direct form for the conpetition with culture of interest, whetter by indirect mode as hosts, ensuring the survival of pests ans diseases that afffect the cultures. One of the ways to combat the problem, is in cultivation of roof plants from soil. The objetive of present work went to assess the establishment and suppression weeds of white oat, under different of minor turnover of soil and its viability on product sistem. The design used was of completely randomized blocks, with bifactor scheme of 3x2+1 and of 4 repetitions, where the fator I was compound of seeding types, conventional of 17 cm, of 34 cm and the haul; and the fator II of fertilizing with 60 kg of N, 100 kg of P and 110 kg of K per hectare; and witnesses characterizing fallow. It’s work was conducted during the months from june to september of 2023, on experimental area of UTFPR campus Dois Vizinhos and the grow crops of white oat used was the URS Corona. In variance analysis made in the software Sisvar 5.6 and by Tukey Test, the factos avaliables did not present a significant interaction on any of the variables analyzed. However, treatments with more satisfactory results are found in the 17 cm Conventional sowing types, wich producted 300 and 260 viable tillers per m², 2000 and 1400 kg de dry matter of white oat per hectare, 250 and 270 kg of dry matter of weeds per hectare, to the levels fertilized and not fertilized, respectively.