Open AccessHarvest Anticipation, Yield and Economic Feasibility of Wheat by Application of Non-Selective Herbicides
Author(s) -
Glauber Monçon Fipke,
Vinícius dos Santos Cunha,
Evandro Ademir Deak,
Jéssica Deolinda Leivas Stecca,
J. L. F. Pires,
Guilherme de Almeida Arismendi,
Eduarda Grün,
Thomas Newton Martin
Publication year - 2022
Publication title -
journal of agricultural studies
Language(s) - English
Resource type - Journals
ISSN - 2166-0379
DOI - 10.5296/jas.v9i2.18046
Subject(s) - glufosinate , paraquat , glyphosate , agronomy , yield (engineering) , phenology , anticipation (artificial intelligence) , crop , zoology , toxicology , biology , horticulture , chemistry , mathematics , biochemistry , materials science , computer science , artificial intelligence , metallurgy
The present work aims to evaluate the possibility of anticipating the wheat harvest by the application of non-selective herbicides in the pre-harvest conditions, thereby providing productive and economic viability. In total, 13 treatments were executed, which includes the spraying of different herbicide combinations (glufosinate-ammonium, glyphosate, and paraquat) in the phenological stages (Z-83, Z-85, Z-87, Z-92), and treatments without application of herbicides. Further, the treatment step was followed by providing different harvest conditions such as (i) glufosinate-ammonium: 9.5 and 8.8 days, (ii) glyphosate: 11.2 and 10.9 days, and (iii) paraquat: 7.9 and 8.5, where the first numerical value corresponds to number of days for the year 2016 followed by 2017. A mean reduction in seed yield of 4.6 % (BRS Parrudo) and 25.4 % (TBIO Sinuelo) was observed upon application of herbicides in the first two phenological stages. Additionally, an economic loss reaching up to R$ 2512 ha-1, was demonstrated. Therefore, the application of the non-selective herbicides glufosinate-ammonium and paraquat in the pre-harvest results in wheat phytointoxication, however, promoting harvest anticipation in 4.8 and 5.3 days, respectively.