Impact of crop rotation and soil tillage on the severity of winter wheat leaf blotches

Bankina, B., Latvia Univ. of Life Sciences and Technologies, Jelgava; Bimsteine, G., Latvia Univ. of Life Sciences and Technologies, Jelgava; Arhipova, I., Latvia Univ. of Life Sciences and Technologies, Jelgava; Kaneps, J., Latvia Univ. of Life Sciences and Technologies, Jelgava; Darguza, M., Latvia Univ. of Life Sciences and Technologies, Jelgava

Impact of crop rotation and soil tillage on the severity of winter wheat leaf blotches

2021

Bankina, B., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Bimsteine, G., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Arhipova, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Kaneps, J., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Darguza, M., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia)

Reduced tillage is considered as one of the main tools to save biological diversity; however, it increases pressure of diseases, including wheat leaf blotches. The aim of present study was to clarify the impact of reduced soil tillage on the development of winter wheat leaf blotches in different schemes of crop rotation. The impact of different growing technologies on the severity of winter wheat disease was evaluated in a two-factorial experiment: A – soil tillage system, and B – different combinations of wheat pre-pre-crop and pre-crop (wheat, oilseed rape, barley and faba beans). Diseases were assessed every 10 days approximately and total impact of diseases was evaluated by calculating AUDPC (Area under Diseases Progress Curve). Tan spot, caused by Pyrenophora tritici-repentis was dominated disease over the long period, regardless of meteorological conditions. Development of Septoria leaf blotch was not influenced by neither crop rotation nor soil tillage. The level of tan spot was essentially higher after wheat, regardless of the pre-pre-crop. Reduced soil tillage promoted severity of tan spot. Ploughing mitigated effect of previous crops and differences in tan spot level were insignificant. Despite many positive effects of conservation tillage, increasing of fungicide treatment could be necessary, in conditions, when the tan spot is most devastating and widespread wheat disease.

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AGROVOC Keywords

cercosporiose conservation tillage control de enfermedades crop rotation disease control enfermedades de las plantas field experimentation fongicide fungicidas fungicides labranza latvia letonia lettonie maladie des plantes monitoring mycosphaerella graminicola plant diseases rotation culturale surveillance tillage travail du sol travail du sol de conservation trigo de invierno vigilancia winter wheat

Bibliographic information

Published in

Rural Sustainability Research: scientific journal (Latvia)

Volume 45 Issue 340 ISSN 2256-0939

Pagination

p. 21–27

Other Subjects

Controle de maladies; Pyrenophora tritici repentis; Rotacion de cultivos; Blotches; Labranza de conservacion; Ble d'hiver; Experimentation au champ; Experimentacion en campo

Language

English

Note

Summary (En). 1 table, 4 fig., 25 ref.. Continues edition: Proceedings of the Latvia University of Agriculture, ISSN 2255-8535 (Online), ISSN 1407-4427 (Print)

Type

Web Site; As

In AGRIS since: 2021-12-15

Format: AGRIS AP

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This bibliographic record has been provided by Fundamental Library of Latvia University of Life Sciences and Technologies

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