Management of rice straw in rice-soybean succession in tropical lowland

Autor:	Alberto Baêta dos Santos, Mellissa Ananias Soler da Silva, Luís Fernando Stone, Alexandre Bryan Heinemann
Přispěvatelé:	ALBERTO BAETA DOS SANTOS, CNPAF, MELLISSA ANANIAS SOLER DA SILVA, CNPAF, LUIS FERNANDO STONE, CNPAF, ALEXANDRE BRYAN HEINEMANN, CNPAF.
Rok vydání:	2022
Předmět:	Oryza Sativa General Veterinary Soja Straw-burning Rice straw straw burning Secondary succession Palha de Arroz Propriedade Físico-Química Solo Arroz Tropical and subtropical crops Oryza sativa L Rice knife-roller soil quality General Agricultural and Biological Sciences
Zdroj:	Revista Ceres, Volume: 69, Issue: 4, Pages: 390-399, Published: 22 JUL 2022 Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA Revista Ceres v.69 n.4 2022 Revista Ceres Universidade Federal de Viçosa (UFV) instacron:UFV
ISSN:	2177-3491 0034-737X
DOI:	10.1590/0034-737x202269040002
Popis:	This study aimed to analyze rice straw alternative managements to maximize the rice-soybean succession yield and to quantify their impacts on soil properties. The experiment was set up in a completely randomized design with six replicates. Nine rice straw managements were evaluated: straw burning (M1), straw harvesting (M2), straw incorporation with disc harrow and two passes (M3) or three passes (M4) of leveling disc harrow, straw incorporation with knife-roller and soybean no-tillage (M5), straw incorporation with knife-roller and two passes (M6) or three passes (M7) of leveling disc harrow, straw incorporation with two passes of knife-roller and two passes (M8) or three passes (M9) of leveling disc harrow. Straw incorporation by knife-roller provided the lowest soil organic matter (SOM) contents due to slow mineralization of fresh straw incorporated shallow into the soil, although SOM increased in the surface layer related to the initial content. Rice-soybean succession yield was more affected by the physical than by the soil chemical properties. The straw incorporation with one pass of knife-roller and two passes of leveling disc harrow (M6) can replace the straw burning, without affecting the rice-soybean succession yield and soil physical quality, with a reduction in machinery operations, allowing early soil tillage. Made available in DSpace on 2022-08-23T11:20:02Z (GMT). No. of bitstreams: 1 rc-2022.pdf: 351346 bytes, checksum: 084e3820154a362375a0dc1d9c8e46f3 (MD5) Previous issue date: 2022
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58a6cd72906346e6b3835793e5ac4cb6 https://doi.org/10.1590/0034-737x202269040002 Zobrazit plný text záznamu