Alternative products to control powdery mildew in soybeans culture in field
Biosci. j. (Online)
; 37: e37052, Jan.-Dec. 2021. graf, tab
Article
em En
| LILACS
| ID: biblio-1358997
Biblioteca responsável:
BR396.1
ABSTRACT
The occurrence of powdery mildew (Microsphaera diffusa) in soybean (Glycine max L.) has increased in the last harvests. In order to study the efficiency of powdery mildew control due to the application of alternative products and conventional fungicide, trials were conducted in Ponta Grossa, PR, Brazil, during the 2013/2014 and 2014/2015 growing seasons. The design used was randomized blocks with four replications. The treatments for the experiments were 1 - control; 2 - acibenzolar-S-methyl (Bion 500 WG®); 3 - calcium (Max Fruit®); 4 - Micronutrients copper, manganese and zinc (Wert Plus®); 5 - Micronutrients manganese, zinc and molybdenum (V6®); 6 - NK fertilizer (Hight Roots®); 7 - Ascophyllum nodosum (Acadian®) and 8 - fungicide (azoxystrobin + cyproconazole) (Priori XTRA®) with the addition of the adjuvant. Four applications of alternative products (phenological stages V3, V6, R1 and R5.1) and two of fungicide (phenological stages R1 and R5.1) were carried out. The parameters evaluated were powdery mildew severity and productivity. The severity data made it possible to calculate the area under the disease progress curve (AUDPG). Alternative products didn't reduce powdery mildew in the two harvests. The conventional fungicide treatment was the only one that controlled powdery mildew and didn't reduce the productivity in both experiments.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Praguicidas
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Glycine max
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Fungicidas Industriais
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Erysiphe
Idioma:
En
Revista:
Biosci. j. (Online)
Assunto da revista:
Agricultura
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Disciplinas das Cincias Biol¢gicas
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Pesquisa Interdisciplinar
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil