Yield and Nitrate Leaching in a Rainfed Maize Crop Using Swine Manure and Mineral Fertilizer as Nitrogen Sources

Silva, Denise Freitas; Andrade, C. de L. T. de; Resende, Á. V. de; García, Axel García y; Rodrigues, Celina Cândida Ferreira; Teixeira, Talita Coutinho; Amaral, T. A.; Paixão, Jéssica Sousa

doi:10.13031/aim.20131596073

2013 Kansas City, Missouri, July 21 - July 24, 2013 2013

DOI: 10.13031/aim.20131596073

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Yield and Nitrate Leaching in a Rainfed Maize Crop Using Swine Manure and Mineral Fertilizer as Nitrogen Sources

Denise Freitas Silva

C. de L. T. de Andrade

Á. V. de Resende

et al.

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A Modeling Approach to Establish Strategies for Maize Silage Production in the Micro-Region of Pelotas, Brazil

Amaral

Braga²,

Lima

et al. 2017

RBMS

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-The objective of this study was to evaluate some crop management strategies to improve silage production by family farmers in the micro-region of Pelotas, southern State of Rio Grande do Sul (RS), Brazil. The seasonal analysis tool of de CSM-CERES-Maize model was used to assess aboveground dry biomass production under rainfed conditions. The simulations comprised scenarios involving four cultivars (Amarelão, AL 30, AG 5011 and AG 122), six nitrogen (N) fertilization strategies, 52 sowing dates, and 21 years of daily weather data. Silage productivity and quality were assessed, and a sowing window was established for each one of the cultivars based on this information. Regardless of the N rate and cultivar, sowings performed between June 26 and December 19 were not at risk of exceeding the deadline for silage harvesting in the region. For sowing occurred on December 19, regardless of the N rate, the average productivity of silage and the average amount of energy per unit area were lower for the creole variety Amarelão. For the same sowing date the average values of energy per unit of biomass weight indicated good silage quality, for all cultivars regardless of the N rate.

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A Modeling Approach to Establish Strategies for Maize Silage Production in the Micro-Region of Pelotas, Brazil

Amaral

Braga²,

Lima

et al. 2017

RBMS

View full text Add to dashboard Cite

show abstract

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Yield and Nitrate Leaching in a Rainfed Maize Crop Using Swine Manure and Mineral Fertilizer as Nitrogen Sources

Cited by 1 publication

References 0 publications

A Modeling Approach to Establish Strategies for Maize Silage Production in the Micro-Region of Pelotas, Brazil

A Modeling Approach to Establish Strategies for Maize Silage Production in the Micro-Region of Pelotas, Brazil

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