Inibidor de nitrificação e aplicação parcelada de dejetos de suínos nas culturas do milho e trigo

Schirmann, Janquieli; Aita, Celso; Giacomini, Sandro José; Pujol, Stefen Barbosa; Giacomini, Diego Antonio; Gonzatto, Rogério; Olivo, Juliano

doi:10.1590/s0100-06832013000100028

Cited by 9 publications

(7 citation statements)

References 25 publications

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“…Furthermore, the soil nutrient contents are in the class of high availability (CQFS-RS/SC, 2004), regardless of the fertilizer used. The addition of IE did not affect the corn grain and dry mass yields, which agree with results published by Schirmann et al (2013). Studying fertilization with NPK and split dose of PS (a total of 62 m 3 ha -1 ), with and without the addition of EI, applied in pre-sowing and topdressing in corn, in a Red Acrisol, these authors also did not observe difference between the NPK and the PS, regardless EI addition.…”

Section: Corn Grain and Dry Mass Yieldssupporting

confidence: 88%

Incorporation in soil and addition of enzyme inhibitor as a way to increase the efficiency of pig slurry and mineral fertilizer

Erdmann¹,

Cassol²,

Sacomori³

et al. 2019

Revista Brasileira De Ciência Do Solo

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The incorporation of nitrogen (N) fertilizers in the soil and the use of enzyme inhibitors (EI) can improve the efficiency of N fertilization by reducing losses by ammonia volatilization and nitrate leaching. This study aimed to evaluate the efficiency of EI addition and fertilizer incorporation on both grain and dry mass yields of corn as well as on some soil chemical properties, with focus on N availability. A field experiment was carried out for three years in randomized blocks with four replications. The treatments consisted of a 2 × 5 factorial, including two forms of fertilizers application: superficial (SUP) and incorporated (INC), allocated in the plots; and five fertilizations: mineral fertilizer (NPK); NPK + EI; pig slurry (PS); PS+EI; and control (TEST), allocated in the subplots. The soil mineral N content was determined at 30, 60, and 90 days after fertilizer application (DAA) and these times were considered as sub-subplots. All fertilizers increased the dry corn matter and grain yields and the soil availability of N, P, and K, mainly in the upper layer (0.00-0.05 m). However, only the PS promoted higher productivity when incorporated into the soil relative to the soil superficial application. The incorporation of fertilizers increases soil available P but has little effect on soil mineral N. The EI addition to the fertilizers promotes higher soil mineral N contents in the soil until 30 and 60 DAA respectively when superficially applied and soil incorporated, although this does not increase the corn productivity.

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Section: Corn Grain and Dry Mass Yieldssupporting

confidence: 88%

Incorporation in soil and addition of enzyme inhibitor as a way to increase the efficiency of pig slurry and mineral fertilizer

Erdmann¹,

Cassol²,

Sacomori³

et al. 2019

Revista Brasileira De Ciência Do Solo

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“…The average apparent efficiency was 52 % and slightly higher for barley and after corn ( Figure 5). However, using a single value for the efficiency of N fertilizer applied at the same time of year and under similar climatic conditions to wheat and barley led to an average efficiency of 50 %, which is consistent with reported values (Schirmann et al, 2013;Espindula et al, 2014). The relatively low efficiency of applied N is a widely known fact, usually associated to heavy volatilization and leaching losses.…”

Section: Apparent Efficiency Of Applied Nsupporting

confidence: 86%

Nitrogen Fertilization of No-Tillage Winter Cereals in the South-Central Region of Paraná, Brazil

Fontoura

Viero

Moraes

et al. 2017

Rev. Bras. Ciênc. Solo

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High winter cereal yields depend on an adequate supply of nitrogen (N). We developed a system for indicating N rates for wheat and barley in the South-Central region of the state of Paraná, Brazil, using results of 72 field experiments conducted from 2007 to 2012. The N rates recommended for winter cereals were estimated to supply the amounts of N fertilizer needed to obtain increasing yields (<3.5, 3.5-4.5, 4.5-5.5, and >5.5 Mg ha -1 ) of crops grown after soybean and corn on soils with a variable organic matter content (<40, 40-60, and >60 g dm -3 ). The apparent mineralization rate of soil N was estimated to be 1 % and the N fertilization efficiency 50 %. The N rates recommended for wheat ranged from 30 to 150 kg ha -1 when cultivated after soybean, and from 30 to 170 kg ha -1 after corn. The N rates for barley ranged from 30 to 120 kg ha -1 when grown after soybean, and from 30 to 130 kg ha -1 after corn. These N rates are consistent with those indicated by the Soil Fertility Commission for the states of Rio Grande do Sul and Santa Catarina (CQFS-RS/SC, 2016), and also with the rates of maximum economic efficiency estimated in our study. The proposed N rate recommendation system can be used by agricultural technicians and producers to manage N fertilization of wheat and barley in the South-Central region of Paraná, Brazil.

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“…The greater TN contents in the soil exhibited at the rates of 100 and 200 m 3 ha -1 of PS are explainable by the large addition of the nutrient in these treatments in carrying out the experiment, with a total of 660 and 1,320 kg ha -1 of TN in 2009, and of 390 and 780 kg ha -1 in 2010, respectively, in contrast with the application of 170 kg ha -1 of mineral N in the form of urea each year. It is important to note that mineralization of organic N of the soil occurs at a variable rate as a result of the edaphic and climatic characteristics, usage and management practices, type of soil, and quality of the crop or organic residue (Aita et al, 2006;Lourenzi et al, 2013;Schirmann et al, 2013). New approaches in regard to organic N have characterized different fractions of this nutrient in the soil, such as recalcitrant organic N and labile organic N, which have an effect on the rate of mineralization Paungfoo-Lonhienne et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Organic Nitrogen in a Typic Hapludox Fertilized With Pig Slurry

Grohskopf

Cassol

Corrêa

et al. 2015

Rev. Bras. Ciênc. Solo

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The application of pig slurry may have a different effect on nitrogen dynamics in soil compared to mineral fertilization. Thus, the aim of this study was to determine the different forms of organic n in a latossolo Vermelho distroférrico (Typic Hapludox) and their relationship to n uptake by crops in response to 10 years of annual application of pig slurry and mineral fertilizer. The treatments were application rates of 0, 25, 50, 100, and 200 m 3 ha -1 of pig slurry, in addition to mineral fertilizer, organized in a randomized block design with four replications. The n contents were determined in the plant tissue and in the forms of total n and acid hydrolyzed fractions: ammonium-n, hexosamine-n, α-amino-n, amide-n, and unidentified-N. Annual application of pig slurry or mineral fertilizer increased the total-N content in the 0-10 cm depth layer. The main fractions of organic N in the soil were α-amino-N when pig slurry was applied and unidentified-N in the case of mineral fertilizers. Pig slurry increased the N fractions considered as labile: α-amino-N, ammonium-N, and amide-N. The increase in these labile organic n fractions in the soil through pig slurry application allows greater n uptake by the maize and oat crops in a no-tillage system.

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Inibidor de nitrificação e aplicação parcelada de dejetos de suínos nas culturas do milho e trigo

Cited by 9 publications

References 25 publications

Incorporation in soil and addition of enzyme inhibitor as a way to increase the efficiency of pig slurry and mineral fertilizer

Incorporation in soil and addition of enzyme inhibitor as a way to increase the efficiency of pig slurry and mineral fertilizer

Nitrogen Fertilization of No-Tillage Winter Cereals in the South-Central Region of Paraná, Brazil

Organic Nitrogen in a Typic Hapludox Fertilized With Pig Slurry

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